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CN113107351B - Top drive main shaft control method for improving sliding guide drilling efficiency - Google Patents

Top drive main shaft control method for improving sliding guide drilling efficiency Download PDF

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Publication number
CN113107351B
CN113107351B CN202010028641.3A CN202010028641A CN113107351B CN 113107351 B CN113107351 B CN 113107351B CN 202010028641 A CN202010028641 A CN 202010028641A CN 113107351 B CN113107351 B CN 113107351B
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reverse
top drive
value
torque
angle
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CN113107351A (en
Inventor
尹文波
唐洪林
何洪涛
李联中
李子杰
赵波
王海斌
江正清
王建业
范寅聪
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China Petrochemical Corp
Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
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Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • E21B44/04—Automatic control of the tool feed in response to the torque of the drive ; Measuring drilling torque
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Control Of Machine Tools (AREA)

Abstract

The invention discloses a top drive main shaft control method for improving sliding guide drilling efficiency, which comprises the following steps: precisely controlling the rotary swinging tool surface of the top drive main shaft; precisely controlling the forward and reverse bidirectional torsion of the top drive main shaft according to the set angle value psi; precisely controlling the forward and reverse torsion of the top drive main shaft according to the set forward torque value and reverse torque value; and controlling the top drive main shaft to correct the tool surface in real time in the forward and reverse bidirectional torsion process according to the set angle value or the torque value. The method comprehensively considers various working conditions of sliding guide, and can meet the requirements of the directional process of complex structure wells such as horizontal wells, large-displacement wells and the like; meanwhile, the operability is strong, and the device is more practical. According to the method provided by the invention, the friction and the torque in sliding guide drilling are reduced by more than 50% on average and can reach 80% at maximum, the average mechanical drilling speed is improved by more than 30%, and the resistance reduction and speed increase effects are obvious; and has the advantages of low cost, high reliability and low risk.

Description

Top drive main shaft control method for improving sliding guide drilling efficiency
Technical Field
The invention relates to the technical field of petroleum engineering drilling, in particular to a top drive main shaft control method for improving sliding guide drilling efficiency.
Background
With the continuous progress of drilling technology and the need for oil and gas exploration and development, directional wells, horizontal wells and large-displacement wells are increasingly drilled. Sliding guiding by adopting a bent screw (or a bent joint) and a Measurement While Drilling (MWD) instrument is still the most common current directional mode, and is realized by only driving a drill bit to rotate to break rock under the condition that a drill string does not rotate, and changing the well inclination angle and the azimuth angle of a borehole through a sliding guiding tool so as to control the track of the borehole, but because the drill string does not rotate, static friction is formed between the drill string and the borehole wall, the friction resistance is high, the pressure is easy to hold, and the defect of sliding drilling is more obvious along with the increase of the well inclination angle and the horizontal displacement, and the method mainly comprises the following steps of: (1) The drill bit is difficult to maintain constant bit pressure, so that the mechanical drilling speed is greatly reduced, the tool surface is unstable, and the control effect of the sliding drilling track is affected; (2) In order to apply the bit pressure to the drill bit, the driller needs to excessively release the hook load, misoperate the pump, damage the drill bit, the power drilling tool and the like; (3) The driller needs to frequently lift and lower the drilling tool, release the friction and torque of the drilling tool, redirect the tool face and reduce the sliding drilling efficiency.
In order to solve the technical problems, research on a method for controlling resistance reduction and speed increase of a top drive bidirectional torsion drill string in sliding drilling is carried out at home and abroad successively. By way of retrieval, CN101466911a discloses a device and method for swinging a drill string, the main content of which is the following steps: (a) Rotating the drill string in a first direction until a first limit position is reached; (b) Rotating the drill string in a second direction until a second limit is reached; the first and second limits are based on the amount of energy applied during rotation. The method is to set the applied energy values in two rotation directions to control the swing amplitude of the drill string, and the energy value is related to two parameters of torque tau and swing angular speed omega as known by an energy formula J= omegaτdt, so that the method for setting the energy value to swing the drill string is not scientific, and the resistance reducing effect is affected. The publication No. CN106050216A discloses a top drive torsion pendulum drag reduction method and device for improving sliding drilling efficiency, and the patent details a positive and negative torque setting method and a related device for controlling a top drive torsion pendulum drill string, does not mention functions of swinging a tool face, angle torsion pendulum, correcting the tool face in torsion pendulum work and the like, and is difficult to meet the requirements of a sliding guide drilling process. Publication number CN108227495a discloses a sliding guiding drilling control system with self-adaption and a control method, and the patent teaches how to control rotation of a top drive in real time according to a difference value between a designed tool face angle and an MWD actually measured tool face angle, so as to realize self-adaption adjustment of a downhole tool face angle in sliding guiding drilling, and does not mention a method for reducing resistance and accelerating speed by controlling forward and reverse torsion drill columns of the top drive.
The top drive control system and the top drive control method represented by the patent have single functions, and are difficult to meet the actual technological requirements of sliding guide of a horizontal well, a large-displacement well with a complex structure and the like; and the control method is deviated from the theory, has a large gap from the actual situation, and has poor practicability.
Disclosure of Invention
Aiming at overcoming the defects and shortcomings of the prior art, the invention provides a top drive main shaft control method which is complete in function, more efficient and practical and can improve the sliding guide drilling efficiency.
The invention is realized by the following technical scheme:
a top drive main shaft control method for improving sliding guide drilling efficiency comprises the following steps:
the first step: setting the forward torsion limit torque T of the top drive main shaft according to the type of the drill string Positive max Reverse torque limit torque T Inverse max Setting the idle rotation maximum torque T of the drill string No-load max ；
And a second step of: the tool face is swung, forward and reverse torsion of the top drive main shaft is controlled according to a set angle value according to the difference value between the designed tool face and the actual tool face, and the tool face is adjusted to a proper angle;
and a third step of: after the tool surface is arranged, starting a winch to lower a drill string and controlling the forward and reverse bidirectional torsion of the top drive main shaft; when the well depth or horizontal displacement is not large, the well is twisted bidirectionally according to an angle value; when the well depth or horizontal displacement is large, the two-way torsion is performed according to an angle value or a positive and negative torque value;
fourth step: if the tool surface drifts in the process of controlling the positive and negative bidirectional torsion of the top drive main shaft according to the angle value or the positive and negative torque value, controlling the top drive main shaft to correct the tool surface in real time when the tool surface is larger than the designed tool surface;
fifth step: and stopping the top drive spindle from twisting when the sliding guide is finished or the friction resistance is low and no pressure is generated.
The above scheme further comprises:
the first step also comprises setting the swinging tool face speed v 1 Forward and reverse torsional velocity v 2 。
Further, the pendulum tool face velocity v 1 Set to 3rpm; control the forward and reverse torsion speed v of the top drive 2 Is set in a range of 5 to 15rpm, and v when more than 5' of the drill string, well deviation and horizontal displacement are used is small 2 Setting lower limit value, when using small-size drill string below 5' and the well depth and horizontal displacement are large, v 2 An upper limit value is set.
Drill string idle rotation maximum torque T No-load max The setting method is that the lifting drill string is 5-10 m away from the bottom of the well, the top drive main shaft is controlled to rotate at a speed v 2 Forward rotation, recording the maximum torque value of the top drive, namely T No-load max The method comprises the steps of carrying out a first treatment on the surface of the Forward torque limit torque T Positive max Less than the torque T of the drill string Upper buckle Reverse torque limit torque T Inverse max To be smaller than the torque T of the drill string Shackle for vehicle The method comprises the steps of carrying out a first treatment on the surface of the Forward torque value T Positive direction Less than the forward torque limit torque T Positive max Reverse torque value T Reverse-rotation Requiring less than the reverse torque limit torque T Inverse max The method comprises the steps of carrying out a first treatment on the surface of the When the well deviation and horizontal displacement are smaller, T Positive direction ＝T No-load max ×0.4，T Reverse-rotation ＝T Positive direction X 0.7; when the well deviation and horizontal displacement are large, T Positive direction ＝T No-load max ×(0.7～0.8)，T Reverse-rotation ＝T Positive direction ×0.7。
The method for swinging the tool surface in the second step comprises the following steps: if the tool face theta is designed 1 And actually measure the tool face theta 2 Absolute value of difference |theta 1 -θ 2 Setting the angle theta of the swinging tool face to be more than 20 degrees 1 -θ 2 I, if theta 1 ＞θ 2 Then the top drive main shaft is controlled to have a speed v 1 Forward (clockwise) rotation angle θ, if θ 1 ＜θ 2 Then the top drive main shaft is controlled to have a speed v 1 The angle θ is rotated in the opposite (counterclockwise) direction to precisely control the swing tool face.
Further, according to the drilling working condition and the real drilling data analysis, the torsion angle value psi is initially set, and the top drive main shaft is controlled to start to forward from restThe rotation angle value psi is stopped, then the reverse rotation angle value 2 psi is stopped, and then the forward rotation angle value 2 psi is stopped, so that the positive and negative bidirectional torsion is always performed within the angle range of 2 psi until the rotation angle value is stopped, and the torsion speed is v 2 ；
The torsion angle value psi real-time adjustment method comprises the following steps:
if actually measured tool face angle theta 2 The friction resistance between the drill string and the well wall is larger, the underpressure is still serious, and the torsion angle value psi is increased;
if the tool face angle theta is actually measured in the pit 2 When the torsion angle value phi is left and right and is in the vicinity of a certain value, the torsion angle value phi is reduced;
the torsion angle value psi is adjusted in real time according to the adjustment method until the toolface angle theta is actually measured 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value between the drill string and the well wall is greatly reduced, wherein the angle is less than or equal to 20 degrees.
The method for bidirectional torsion according to the positive and negative torque values in the third step comprises the following steps:
according to the measured idle rotation maximum torque T of the drill string No-load max Preliminary setting of the forward torque value T Positive direction And reverse torque value T Reverse-rotation Starting to twist according to the torque value;
the top drive main shaft starts to rotate forward from static until the actual torque value reaches T Positive direction The top drive is decelerated, braked and stopped, and then reversed until the reverse torque value reaches T Reverse-rotation The top drive is decelerated, braked and stopped, and then rotates forward, so that the top drive is driven at T Positive direction 、T Reverse-rotation Forward and reverse torsion in the torque value range with torsion speed v 2 ；
Forward torque value T Positive direction And reverse torque value T Reverse-rotation The real-time adjustment method comprises the following steps:
if actually measured tool face angle theta 2 The friction value between the drill string and the well wall is larger, the underpressure is still serious, and the forward torsion torque value T is increased at the same time Positive direction And reverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the forward rotation direction, the forward torque value T decreases Positive direction Or increaseReverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the reverse direction, the reverse torque value T decreases Reverse-rotation Or increasing the value T of the forward torque Positive direction ；
If the tool face angle theta is actually measured in the pit 2 To float around a certain value, the forward torque value T is reduced at the same time Positive direction And reverse torque value T Reverse-rotation ；
The forward torsion torque value T is adjusted in real time according to the adjustment method Positive direction And reverse torque value T Reverse-rotation Until the measured tool face angle theta 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value between the drill string and the well wall is greatly reduced, wherein the angle is less than or equal to 20 degrees.
In the fourth step, the tool face drifts in the process of bidirectional torsion according to the set angle value or the positive and negative torque value, if the tool face theta is designed 1 And actually measure the tool face theta 2 Absolute value of difference |theta 1 -θ 2 The I is more than 20 degrees, and the top drive main shaft is controlled to correct the tool surface in real time;
in the torsion process according to the set angle value psi, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to a set angle value phi, continuing to stop at a positive angle alpha, reversing the top drive main shaft to a reverse angle of 2 phi, then rotating forward by 2 phi, reversing the top drive main shaft by 2 phi, and twisting the top drive main shaft in a 2 phi angle range all the time;
if theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a set angle value phi, continuing to stop at a positive angle alpha, reversing the top drive main shaft to a reverse angle of 2 phi, rotating forward by 2 phi, reversing the top drive main shaft by 2 phi, and twisting the top drive main shaft in a 2 phi angle range all the time;
in the torsion process according to the set torque value, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to the settingTorque value T Positive direction Stopping after continuing to rotate forward by the angle alpha, and then reversing until the reverse torque value reaches T Reverse-rotation Stopping and rotating forward until the positive torque value reaches T Positive direction Continuing at T Positive direction 、T Reverse-rotation Torsion within the torque value range;
if theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a positive torque value T Positive direction Stopping after continuing the forward rotation angle alpha, and reversing to a reverse torque value T Reverse-rotation Stopping and rotating forward until the positive torque value reaches T Positive direction Thus continuing at T Positive direction 、T Reverse-rotation Torsion within the torque value range;
correcting the tool face in real time according to the adjustment method until the tool face angle theta is actually measured 2 Maintain unchanged, |θ 1 -θ 2 |≤20°。
Further, when the tool face angle is adjusted, the tool face is twisted bidirectionally according to the angle value or the positive and negative torque value, or the tool face is corrected during the twisting process, the positive torque value T Positive direction Greater than or equal to the positive torque limit torque T Positive max Or reverse torque value T Reverse-rotation Greater than or equal to the reverse torque limit torque T Inverse max When the top drive is started, the top drive is immediately decelerated, stopped and braked.
The invention has the following beneficial effects:
the method comprehensively considers various working conditions of sliding guide, has various functions of precisely controlling the tool face of the swing, twisting in two directions according to angles, twisting in two directions according to torques, correcting the tool face in real time in the twisting process according to angles or torques, and meets the sliding orientation process requirements of complex structure wells such as large-displacement wells, horizontal wells and the like; meanwhile, the control method is strong in operability and more practical. According to the control method, the on-site application shows that the friction and the torque in the sliding guide drilling are reduced by more than 50 percent on average, the maximum is 80 percent, the average mechanical drilling speed is improved by more than 30 percent, and the resistance reduction and the speed increase effects are obvious.
Drawings
Fig. 1 is a flowchart of a control method according to the present invention.
Fig. 2 is a man-machine interaction interface of a top drive spindle bidirectional torsion control system based on the control method of the present invention.
Detailed Description
The following describes the technical scheme in the embodiment of the present invention in detail with reference to the accompanying drawings.
The working principle of the technical scheme of the invention is as follows: in the sliding guiding process, the control method is used for controlling the bi-directional torsion of the top drive main shaft according to a set angle or a forward and reverse torque value, and the top drive main shaft drives the drill string to bi-directionally torsion, so that static friction between the drill string and a well wall is changed into dynamic friction, and friction is greatly reduced; through setting the angle, the top drive rotary pendulum tool face can be accurately controlled, the tool face can be accurately corrected in the torsion process, and the sliding guide drilling efficiency is greatly improved.
According to the working principle, the invention provides a top drive main shaft control method for improving the sliding guide drilling efficiency, which comprises the following four functions: precisely controlling the rotary swinging tool surface of the top drive main shaft; precisely controlling the forward and reverse bidirectional torsion of the top drive main shaft according to the set angle value psi; according to the forward torque value T Positive direction And reverse torque value T Reverse-rotation The forward and reverse bidirectional torsion of the top drive main shaft is accurately controlled; and controlling the top drive main shaft to correct the tool surface in real time in the bidirectional torsion process according to the set angle value or the torque value.
Example 1:
in order to achieve the above functions, a top drive spindle control method for improving sliding guide drilling efficiency is provided, which includes:
the first step: setting the forward torsion limit torque T of the top drive main shaft according to the type of the drill string Positive max Reverse torque limit torque T Inverse max Setting the idle rotation maximum torque T of the drill string No-load max ；
And a second step of: the tool face is swung, forward and reverse torsion of the top drive main shaft is controlled according to a set angle value according to the difference value between the designed tool face and the actual tool face, and the tool face is adjusted to a proper angle;
and a third step of: after the tool surface is arranged, starting a winch to lower a drill string and controlling the forward and reverse bidirectional torsion of the top drive main shaft; when the well depth or horizontal displacement is not large, the well is twisted bidirectionally according to an angle value; when the well depth or horizontal displacement is large, the two-way torsion is performed according to an angle value or a positive and negative torque value;
fourth step: if the tool surface drifts in the process of controlling the positive and negative bidirectional torsion of the top drive main shaft according to the angle value or the positive and negative torque value, controlling the top drive main shaft to correct the tool surface in real time when the tool surface is larger than the designed tool surface;
fifth step: and stopping the top drive spindle from twisting when the sliding guide is finished or the friction resistance is low and no pressure is generated.
Wherein:
the first step also comprises setting the swinging tool face speed v 1 Forward and reverse torsional velocity v 2 。
Further, the pendulum tool face velocity v 1 Set to 3rpm; control the forward and reverse torsion speed v of the top drive 2 Is set in a range of 5 to 15rpm, and v when more than 5' of the drill string, well deviation and horizontal displacement are used is small 2 Setting lower limit value, when using small-size drill string below 5' and the well depth and horizontal displacement are large, v 2 An upper limit value is set.
Drill string idle rotation maximum torque T No-load max The setting method is that the lifting drill string is 5-10 m away from the bottom of the well, the top drive main shaft is controlled to rotate at a speed v 2 Forward rotation, recording the maximum torque value of the top drive, namely T No-load max The method comprises the steps of carrying out a first treatment on the surface of the Forward torque limit torque T Positive max Less than the torque T of the drill string Upper buckle Reverse torque limit torque T Inverse max To be smaller than the torque T of the drill string Shackle for vehicle The method comprises the steps of carrying out a first treatment on the surface of the Forward torque value T Positive direction Less than the forward torque limit torque T Positive max Reverse torque value T Reverse-rotation Requiring less than the reverse torque limit torque T Inverse max The method comprises the steps of carrying out a first treatment on the surface of the When the well deviation and horizontal displacement are smaller, T Positive direction ＝T No-load max ×0.4，T Reverse-rotation ＝T Positive direction X 0.7; when the well deviation and horizontal displacement are large, T Positive direction ＝T No-load max ×(0.7～0.8)，T Reverse-rotation ＝T Positive direction ×0.7。
The method for swinging the tool surface in the second step comprises the following steps: if the tool face theta is designed 1 With measured tool faceθ 2 Absolute value of difference |theta 1 -θ 2 Setting the angle theta of the swinging tool face to be more than 20 degrees 1 -θ 2 I, if theta 1 ＞θ 2 Then the top drive main shaft is controlled to have a speed v 1 Forward (clockwise) rotation angle θ, if θ 1 ＜θ 2 Then the top drive main shaft is controlled to have a speed v 1 The angle θ is rotated in the opposite (counterclockwise) direction to precisely control the swing tool face.
Further, according to the drilling condition and the real drilling data analysis, the torsion angle value psi is initially set, the top drive main shaft is controlled to stop from rest at the forward rotation angle value psi, then stop at the reverse rotation angle value 2 psi, and then rotate at the forward rotation angle value 2 psi in a forward and reverse direction within the angle range of 2 psi until the top drive main shaft stops, and the torsion speed is v 2 ；
The torsion angle value psi real-time adjustment method comprises the following steps:
if actually measured tool face angle theta 2 The friction resistance between the drill string and the well wall is larger, the underpressure is still serious, and the torsion angle value psi is increased;
if the tool face angle theta is actually measured in the pit 2 When the torsion angle value phi is left and right and is in the vicinity of a certain value, the torsion angle value phi is reduced;
the torsion angle value psi is adjusted in real time according to the adjustment method until the toolface angle theta is actually measured 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value between the drill string and the well wall is greatly reduced, wherein the angle is less than or equal to 20 degrees.
The method for bidirectional torsion according to the positive and negative torque values in the third step comprises the following steps:
according to the measured idle rotation maximum torque T of the drill string No-load max Preliminary setting of the forward torque value T Positive direction And reverse torque value T Reverse-rotation Starting to twist according to the torque value;
the top drive main shaft starts to rotate forward from static until the actual torque value reaches T Positive direction The top drive is decelerated, braked and stopped, and then reversed until the reverse torque value reaches T Reverse-rotation The top drive is decelerated, braked and stopped, and then rotates forward, so that the top drive is driven at T Positive direction 、T Reverse-rotation Reversible torsion in the torque value rangeThe rotation speed is v 2 ；
Forward torque value T Positive direction And reverse torque value T Reverse-rotation The real-time adjustment method comprises the following steps:
if actually measured tool face angle theta 2 The friction value between the drill string and the well wall is larger, the underpressure is still serious, and the forward torsion torque value T is increased at the same time Positive direction And reverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the forward rotation direction, the forward torque value T decreases Positive direction Or increase the reverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the reverse direction, the reverse torque value T decreases Reverse-rotation Or increasing the value T of the forward torque Positive direction ；
If the tool face angle theta is actually measured in the pit 2 To float around a certain value, the forward torque value T is reduced at the same time Positive direction And reverse torque value T Reverse-rotation ；
The forward torsion torque value T is adjusted in real time according to the adjustment method Positive direction And reverse torque value T Reverse-rotation Until the measured tool face angle theta 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value between the drill string and the well wall is greatly reduced, wherein the angle is less than or equal to 20 degrees.
In the fourth step, the tool face drifts in the process of bidirectional torsion according to the set angle value or the positive and negative torque value, if the tool face theta is designed 1 And actually measure the tool face theta 2 Absolute value of difference |theta 1 -θ 2 The I is more than 20 degrees, and the top drive main shaft is controlled to correct the tool surface in real time;
in the torsion process according to the set angle value psi, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to a set angle value phi, continuing to stop at a positive angle alpha, reversing the top drive main shaft to a reverse angle of 2 phi, then rotating forward by 2 phi, reversing the top drive main shaft by 2 phi, and twisting the top drive main shaft in a 2 phi angle range all the time;
if theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a set angle value phi, continuing to stop at a positive angle alpha, reversing the top drive main shaft to a reverse angle of 2 phi, rotating forward by 2 phi, reversing the top drive main shaft by 2 phi, and twisting the top drive main shaft in a 2 phi angle range all the time;
in the torsion process according to the set torque value, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to a set torque value T Positive direction Stopping after continuing to rotate forward by the angle alpha, and then reversing until the reverse torque value reaches T Reverse-rotation Stopping and rotating forward until the positive torque value reaches T Positive direction Continuing at T Positive direction 、T Reverse-rotation Torsion within the torque value range;
if theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a positive torque value T Positive direction Stopping after continuing the forward rotation angle alpha, and reversing to a reverse torque value T Reverse-rotation Stopping and rotating forward until the positive torque value reaches T Positive direction Thus continuing at T Positive direction 、T Reverse-rotation Torsion within the torque value range;
correcting the tool face in real time according to the adjustment method until the tool face angle theta is actually measured 2 Maintain unchanged, |θ 1 -θ 2 |≤20°。
Further, when the tool face angle is adjusted, the tool face is twisted bidirectionally according to the angle value or the positive and negative torque value, or the tool face is corrected during the twisting process, the positive torque value T Positive direction Greater than or equal to the positive torque limit torque T Positive max Or reverse torque value T Reverse-rotation Greater than or equal to the reverse torque limit torque T Inverse max When the top drive is started, the top drive is immediately decelerated, stopped and braked.
Example 2:
a top drive main shaft control method for improving sliding guide drilling efficiency comprises the following steps:
the first step: setting the forward torsion limit torque T of the top drive main shaft according to the type of the drill string Positive max Reverse torque limit torque T Inverse max Setting the idle rotation maximum torque T of the drill string No-load max ；
And a second step of: the tool face is swung, forward and reverse torsion of the top drive main shaft is controlled according to a set angle value according to the difference value between the designed tool face and the actual tool face, and the tool face is adjusted to a proper angle;
and a third step of: after the tool surface is arranged, starting a winch to lower a drill string and controlling the forward and reverse bidirectional torsion of the top drive main shaft; when the well depth or horizontal displacement is not large, the well is twisted bidirectionally according to an angle value; when the well depth or horizontal displacement is large, the two-way torsion is performed according to an angle value or a positive and negative torque value;
fourth step: if the tool surface drifts in the process of controlling the positive and negative bidirectional torsion of the top drive main shaft according to the angle value or the positive and negative torque value, controlling the top drive main shaft to correct the tool surface in real time when the tool surface is larger than the designed tool surface;
fifth step: and stopping the top drive spindle from twisting when the sliding guide is finished or the friction resistance is low and no pressure is generated.
Wherein:
setting the face velocity v of the pendulum tool 1 Forward and reverse torsional velocity v 2 ；
Setting a forward torque limit torque T Positive max Reverse torque limit torque T Inverse max Maximum torque T of idle rotation of drill string No-load max 。
In general, control of top drive spindle rotary pendulum tool face speed v 1 Set to 3rpm;
control the forward and backward bidirectional torsion speed v of the top drive main shaft 2 Is generally set in the range of 5 to 15rpm, and v when more than 5' of the drill string, well deviation and horizontal displacement are used is small 2 Setting a lower limit value, using a small-size drill string of 2 7/8 ', 3 1/2', and v when the well depth and horizontal displacement are larger 2 An upper limit value is set.
Drill string idle rotation maximum torque T No-load max The setting method is that the lifting drill string is 5-10 m away from the bottom of the well, and the top drive main shaft is driven at a torsion speed v 2 Forward rotation, recording the maximum torque value of the top drive, namely T No-load max ；
Forward torque limit torque T Positive max To be smaller than the torque T of the drill string Upper buckle Reverse torque limit torque T Inverse max To be smaller than the torque T of the drill string Shackle for vehicle . The torque value of the tripping of the drill string is checked by a drill string manual according to the specification and the model of the drill string.
Forward torque value T Positive direction To be smaller than the positive torque limit torque T Positive max Reverse torque value T Reverse-rotation To be smaller than the reverse torque limit torque T Inverse max 。
Generally, T is the time when the well deviation and horizontal displacement are small Positive direction ＝T No-load max ×0.4，T Reverse-rotation ＝T Positive direction X 0.7; when the well deviation and horizontal displacement are large, T Positive direction ＝T No-load max ×(0.7～0.8)，T Reverse-rotation ＝T Positive direction ×0.7。
Generally, if the tool face θ is designed 1 And actually measure the tool face theta 2 Absolute value of difference |theta 1 -θ 2 Setting the angle theta of the swinging tool face to be more than 20 degrees 1 -θ 2 I, if theta 1 ＞θ 2 The forward (clockwise) rotation angle theta of the top drive spindle is controlled, if theta 1 ＜θ 2 And controlling the reverse (anticlockwise) rotation angle theta of the top drive spindle, so as to accurately control the swinging tool surface.
The method for controlling the forward and reverse torsion of the top drive main shaft according to the set angle value psi comprises the following steps:
according to drilling working conditions and real drilling data analysis, an angle phi is initially set, the top drive main shaft is controlled to stop at a forward rotation angle phi from rest, then stop at a reverse rotation angle 2 phi and rotate at a forward rotation angle 2 phi, so that forward and reverse torsion is always performed within an angle range of 2 phi until the top drive main shaft stops, and the forward and reverse torsion speed is v 2 。
The torsion angle value psi can be adjusted in real time, and the adjustment principle is as follows:
if actually measured tool face angle theta 2 The friction resistance between the drill string and the well wall is larger, the underpressure is still serious, and the torsion angle value psi is required to be increased;
if the tool face angle theta is actually measured in the pit 2 To float around a certain value, thenThe torsion angle value ψ is reduced.
According to the above-mentioned regulation method until the actual measured toolface angle theta 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value of the drill string and the well wall is greatly reduced, and the sliding guide drilling efficiency is greatly improved.
The method for precisely controlling the forward and reverse bidirectional torsion of the top drive main shaft according to the set torque value comprises the following steps:
according to the measured idle rotation maximum torque T of the drill string No-load max Preliminary setting of the forward torque value T Positive direction And reverse torque value T Reverse-rotation Starting to twist according to the torque value;
the top drive main shaft starts to rotate forward from static until the actual torque value reaches T Positive direction The top drive is decelerated, braked and stopped, and then reversed until the reverse torque value reaches T Reverse-rotation The top drive is decelerated, braked and stopped, and then rotates forward, so that the electric turntable or the top drive is driven at T Positive direction 、T Reverse-rotation Forward and reverse torsions in the torque value range until stopping, the forward and reverse torsions speed being v 2 。
Forward torque value T Positive direction And reverse torque value T Reverse-rotation Can be adjusted in real time, and the adjusting method comprises the following steps:
if actually measured tool face angle theta 2 The friction value between the drill string and the well wall is larger, the underpressure is still serious, and the forward torsion torque value T is required to be increased at the same time Positive direction And reverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the forward rotation direction, the forward torque value T is required to be reduced Positive direction Or increase the reverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the reverse direction, the reverse torque value T is required to be reduced Reverse-rotation Or increasing the value T of the forward torque Positive direction ；
If the tool face angle theta is actually measured in the pit 2 To float around a certain value, the forward torque value T is reduced at the same time Positive direction And reverse torque value T Reverse-rotation 。
According to the above-mentioned regulation method until the actual measured toolface angle theta 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value of the drill string and the well wall is greatly reduced, and the sliding guide drilling efficiency is greatly improved.
In the forward and reverse bidirectional torsion process according to the set angle value or torque value, if |theta 1 -θ 2 The I is more than 20 degrees, and the tool surface is required to be corrected in real time by controlling the top drive main shaft, and the specific correction method is as follows:
in the torsion process according to the set angle value psi, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to a set angle value phi, the positive rotation angle alpha is continued to stop, the top drive main shaft rotates reversely, the reverse rotation angle is 2 phi, the top drive main shaft rotates forward by 2 phi, the top drive main shaft rotates reversely by 2 phi, and then the top drive main shaft rotates in a 2 phi angle range all the time.
If theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a set angle value psi, the positive rotation angle alpha is continued to stop, the top drive main shaft rotates reversely, the reverse rotation angle is 2 psi, the top drive main shaft rotates forward by 2 psi, the top drive main shaft rotates reversely by 2 psi, and then the top drive main shaft is twisted in a 2 psi angle range all the time.
In the torsion process according to the set torque value, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to a set torque value T Positive direction Stopping after continuing to rotate forward by the angle alpha, and then reversing until the reverse torque value reaches T Reverse-rotation Stopping and rotating forward until the positive torque value reaches T Positive direction Continuing at T Positive direction 、T Reverse-rotation Torsion is within the torque value range.
If theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a positive torque value T Positive direction Stopping after continuing the forward rotation angle alpha, and reversing to a reverse torque value T Reverse-rotation Stopping and rotating forward until the positive torque value reaches T Positive direction Then it isThus continuing at T Positive direction 、T Reverse-rotation Torsion is within the torque value range.
When adjusting the tool face angle, twisting according to the set angle value or the forward and reverse torque value, or correcting the tool face during twisting, the forward torque value T Positive direction Greater than or equal to the positive torque limit torque T Positive max Or reverse torque value T Reverse-rotation Greater than or equal to the reverse torque limit torque T Inverse max When the top drive is started, the top drive is immediately decelerated, stopped and braked.
Example 3:
referring to the process flow chart of the top drive spindle control method of fig. 1. The specific implementation flow is as follows:
the first step: the system parameter setting is mainly to set the limit torque of the left and right torsion of the top drive main shaft according to the type of the drill string and set the reduction ratio according to the structure of the top drive gear box;
and a second step of: the tool surface is swung, and the top drive rotation is controlled to adjust the tool surface to a proper angle according to the difference value between the designed tool surface and the actual tool surface;
and a third step of: after the tool surface is arranged, starting a winch to lower the drill string and controlling the bi-directional torsion of the top drive main shaft. When the well depth or horizontal displacement is not large, suggesting torsion according to a set angle value; when the well depth or horizontal displacement is large, the well can be twisted bidirectionally according to an angle or positive and negative torque values;
fourth step: if the tool surface drifts in the torsion process according to the angle value or the positive and negative torque value, the tool surface is corrected in real time when the tool surface is larger than the designed tool surface;
fifth step: and stopping the top drive spindle torsion operation when the sliding guide is finished or the friction resistance is low and no pressure is generated.
Fig. 2 is a man-machine interaction interface of a top drive spindle bidirectional torsion control system based on the top drive spindle control method of the invention, which mainly comprises functions of swinging a tool surface, torsion, angle torsion, tool surface correction through torsion collision in the torsion process, and the like. The specific control method is as follows:
swinging tool face: the swinging tool face is a precondition of accurate guiding according to the drilling engineering design and is an essential step of orientation. Ratio ofFor example, in orienting a certain well section, the tool face θ is designed 1 =90°, if the field measured tool face is θ 2 =30°, at which time θ= |θ 1 -θ 2 |=60° > 20 °, and θ 1 ＞θ 2 The top drive spindle is controlled to rotate forward (clockwise) by 60 degrees, the angle is set to be 60 degrees in a column of the swinging tool face of the figure 1, then a button is pressed in the forward direction, and the control system acts to swing the tool face to 90 degrees.
Twisting according to a set torque value: in the actual orientation process of a certain well, when the well depth is 2637 meters and the well incline is 60.4 degrees, the sliding orientation friction resistance is 12-16 tons, the friction resistance is higher, and the pressure is serious. At this time, in the torque torsion column of fig. 1, the left-handed torque is set to be 160 N.m, the right-handed torque is set to be 2300N.m, a torsion start button is clicked, the drill string is controlled to be twisted bidirectionally according to a set left-right torque value, the friction resistance is reduced to be within 4 tons after torsion, and the resistance reducing effect is obvious. When the twisting operation is to be finished, the button of 'twisting end' is clicked.
Torsion pendulum is carried out according to a set angle value: in the actual orientation process of a certain well, when the well depth is 2892 meters and the well is inclined by 63.5 degrees, the sliding orientation friction resistance is 24 tons, the friction resistance is higher, and the pressure is serious. At this time, in the column of angle torsion of fig. 1, the rotation angle is set to be 500 degrees, the torsion start button is clicked, the drill string is controlled to be twisted bidirectionally according to the set angle value, the total left and right torsion amplitude is 1000 degrees, the friction resistance is reduced to 4.5 tons after angle torsion is implemented, and the resistance reducing effect is obvious. When the twisting operation is to be finished, the button of 'twisting end' is clicked.
Torsional impact: in the process of twisting in both directions according to the set torque value or angle value, if the actual tool surface theta 2 Off the design tool face theta 1 When the tool face is large, the tool face needs to be corrected by torsional collision. For example, the tool face is measured to be theta during torsion by torque 2 =0°, design tool face θ 1 =90° because of θ 1 >θ 2 In the column of torsional collision, a collision angle θ= |θ is set 1 -θ 2 The tool face is corrected by clicking a tool face correction button and controlling the top drive spindle to act.
The technical scheme and beneficial effects of the present invention are further described in detail in the above detailed description, and it should be pointed out that the control method of the top drive spindle of the present invention is also applicable to the electric turntable, and the above detailed description is merely illustrative of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the principles of the present invention should be included in the scope of the present invention.

Claims (8)

1. A top drive main shaft control method for improving sliding guide drilling efficiency is characterized by comprising the following steps of:
the first step: setting the forward torsion limit torque T of the top drive main shaft according to the type of the drill string Positive max Reverse torque limit torque T Inverse max Setting the idle rotation maximum torque T of the drill string No-load max ；
And a second step of: swinging tool face according to design tool face angle theta 1 With the measured tool face angle theta 2 Controlling the forward and reverse torsion of the top drive main shaft according to the set angle value, and adjusting the tool face to a proper angle;
and a third step of: after the tool surface is arranged, starting a winch to lower a drill string and controlling the forward and reverse bidirectional torsion of the top drive main shaft; when the well deviation or the horizontal displacement is not large, the well is twisted bidirectionally according to the angle value; when the well deviation or the horizontal displacement is larger, the well is twisted bidirectionally according to an angle value or a positive and negative torque value;
fourth step: if the tool surface drifts in the process of controlling the positive and negative bidirectional torsion of the top drive main shaft according to the angle value or the positive and negative torque value, controlling the top drive main shaft to correct the tool surface in real time when the tool surface is larger than the designed tool surface;
fifth step: stopping the top drive spindle from twisting when the sliding guide is finished or the friction resistance is low and no pressure is generated;
the third step is that the method of bidirectional torsion according to the positive and negative torque values comprises the following steps:
according to the measured idle rotation maximum torque T of the drill string No-load max Preliminary setting of the forward torque value T Positive direction And reverse torque value T Reverse-rotation Starting to twist according to the torque value;
the top drive main shaft starts to rotate forward from static until the actual torque value reaches T Positive direction The top drive speed-reducing brake stops, and then reverses until the reverse torsion torque value reaches T Reverse-rotation The top drive is decelerated, braked and stopped, and then rotates forward, so that the top drive is driven at T Positive direction 、T Reverse-rotation Forward and reverse torsion in the torque value range with torsion speed v 2 ；
Forward torque value T Positive direction And reverse torque value T Reverse-rotation The real-time adjustment method comprises the following steps:
if actually measured tool face angle theta 2 The friction value between the drill string and the well wall is larger, the underpressure is still serious, and the forward torsion torque value T is increased at the same time Positive direction And reverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the forward rotation direction, the forward torque value T decreases Positive direction Or increase the reverse torque value T Reverse-rotation ；
If actually measured tool face angle theta 2 Gradually increases in the reverse direction, the reverse torque value T decreases Reverse-rotation Or increasing the value T of the forward torque Positive direction ；
If the tool face angle theta is actually measured in the pit 2 To float around a certain value, the forward torque value T is reduced at the same time Positive direction And reverse torque value T Reverse-rotation ；
The forward torsion torque value T is adjusted in real time according to the adjustment method Positive direction And reverse torque value T Reverse-rotation Until the measured tool face angle theta 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value between the drill string and the well wall is greatly reduced, wherein the angle is less than or equal to 20 degrees.
2. The top drive spindle control method for improving sliding guide drilling efficiency of claim 1, wherein: the first step further comprises setting a swing tool face velocity v 1 Forward and reverse torsional velocity v 2 。
3. The roof for improving sliding guide drilling efficiency of claim 2The driving main shaft control method is characterized in that: the pendulum tool face velocity v 1 Set to 3rpm; control the forward and reverse torsion speed v of the top drive 2 Is set in a range of 5 to 15rpm, and v when more than 5' of the drill string, well deviation and horizontal displacement are used is small 2 Setting lower limit value, when using small-size drill string below 5', when the well deviation and horizontal displacement are large, v 2 An upper limit value is set.
4. The top drive spindle control method for improving sliding guide drilling efficiency of claim 3, wherein: drill string idle rotation maximum torque T No-load max The setting method is that the lifting drill string is 5-10 m away from the bottom of the well, the top drive main shaft is controlled to rotate at a speed v 2 Forward rotation, recording the maximum torque value of the top drive, namely T No-load max The method comprises the steps of carrying out a first treatment on the surface of the Forward torque limit torque T Positive max Less than the torque T of the drill string Upper buckle Reverse torque limit torque T Inverse max To be smaller than the torque T of the drill string Shackle for vehicle The method comprises the steps of carrying out a first treatment on the surface of the Forward torque value T Positive direction Less than the forward torque limit torque T Positive max Reverse torque value T Reverse-rotation Requiring less than the reverse torque limit torque T Inverse max The method comprises the steps of carrying out a first treatment on the surface of the When the well deviation and horizontal displacement are smaller, T Positive direction ＝T No-load max ×0.4，T Reverse-rotation ＝T Positive direction X 0.7; when the well deviation and horizontal displacement are large, T Positive direction ＝T No-load max ×(0.7～0.8)，T Reverse-rotation ＝T Positive direction ×0.7。
5. The top drive spindle control method for improving sliding guide drilling efficiency according to claim 2, 3 or 4, wherein the second step-and-swing tool face method is as follows: if the tool face angle theta is designed 1 With the measured tool face angle theta 2 Absolute value of difference |theta 1 -θ 2 Setting the angle theta of the swinging tool face to be more than 20 degrees 1 -θ 2 I, if theta 1 ＞θ 2 Then the top drive main shaft is controlled to have a speed v 1 Forward rotation angle θ, if θ 1 ＜θ 2 Then the top drive main shaft is controlled to have a speed v 1 Reverse rotation angle θ, thereby precisely controllingAnd (5) swinging the tool surface.
6. The top drive spindle control method for improving sliding guide drilling efficiency of claim 5, wherein:
according to drilling working conditions and real drilling data analysis, a torsion angle value psi is initially set, the top drive main shaft is controlled to stop from rest, the forward rotation angle value psi is stopped, then the reverse rotation angle value 2 psi is stopped, and the forward rotation angle value 2 psi is subjected to forward and reverse bidirectional torsion within the angle range of 2 psi until the top drive main shaft is stopped, wherein the torsion speed is v 2 ；
The torsion angle value psi real-time adjustment method comprises the following steps:
if actually measured tool face angle theta 2 The friction resistance between the drill string and the well wall is larger, the underpressure is still serious, and the torsion angle value psi is increased;
if the tool face angle theta is actually measured in the pit 2 When the torsion angle value phi is left and right and is in the vicinity of a certain value, the torsion angle value phi is reduced;
the torsion angle value psi is adjusted in real time according to the adjustment method until the toolface angle theta is actually measured 2 Maintain unchanged, |θ 1 -θ 2 The friction resistance value between the drill string and the well wall is greatly reduced, wherein the angle is less than or equal to 20 degrees.
7. The top drive spindle control method for improving sliding guide drilling efficiency of claim 6, wherein: the fourth step, the tool face drifts in the process of bidirectional torsion according to the set angle value or the positive and negative torque value, if the tool face angle theta is designed 1 With the measured tool face angle theta 2 Absolute value of difference |theta 1 -θ 2 The I is more than 20 degrees, and the top drive main shaft is controlled to correct the tool surface in real time;
in the torsion process according to the set angle value psi, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to a set angle value phi, continuing to stop at a positive angle alpha, reversing the top drive main shaft to a reverse angle of 2 phi, then rotating forward by 2 phi, reversing the top drive main shaft by 2 phi, and twisting the top drive main shaft in a 2 phi angle range all the time;
if theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a set angle value phi, continuing to stop at a positive angle alpha, reversing the top drive main shaft to a reverse angle of 2 phi, rotating forward by 2 phi, reversing the top drive main shaft by 2 phi, and twisting the top drive main shaft in a 2 phi angle range all the time;
in the torsion process according to the set torque value, the step of correcting the tool surface is as follows:
if theta is 1 ＞θ 2 Setting a corrected tool face angle α=θ 1 -θ 2 When the top drive main shaft rotates forward to a forward torsion torque value T Positive direction Stopping after continuing to rotate forward by the angle alpha, and then reversing until the reverse torsion torque value reaches T Reverse-rotation Stopping and rotating forward until the forward torque reaches T Positive direction Continuing at T Positive direction 、T Reverse-rotation Torsion within the torque value range;
if theta is 1 ＜θ 2 Setting the corrected tool face angle α=360- (θ) 2 -θ 1 ) When the top drive main shaft rotates forward to a forward torsion torque value T Positive direction Stopping after continuing the forward rotation angle alpha, and then reversing to the reverse torsion torque value T Reverse-rotation Stopping and rotating forward until the forward torque reaches T Positive direction Thus continuing at T Positive direction 、T Reverse-rotation Torsion within the torque value range;
correcting the tool face in real time according to the adjustment method until the tool face angle theta is actually measured 2 Maintain unchanged, |θ 1 -θ 2 |≤20°。
8. The top drive spindle control method for improving sliding guide drilling efficiency of claim 7, wherein: when the tool face angle is adjusted, the tool face is twisted bidirectionally according to the angle value or the positive and negative torque value, or the tool face is corrected in the twisting process, the positive torque value T is calculated Positive direction Greater than or equal to the positive torque limit torque T Positive max Or reverse torque value T Reverse-rotation Greater than or equal to the reverse torque limit torque T Inverse max When the top drive is started, the top drive is immediately decelerated, stopped and braked.
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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067423A (en) * 1976-07-22 1978-01-10 Twin Disc, Incorporated Control system for rotary drill
US6357537B1 (en) * 2000-03-15 2002-03-19 Vermeer Manufacturing Company Directional drilling machine and method of directional drilling
US8387720B1 (en) * 2012-05-31 2013-03-05 Larry G. Keast Drilling rig with a control system for rotationally rocking a drill string with a top drive
CN104141482A (en) * 2014-06-28 2014-11-12 中国石油集团渤海钻探工程有限公司 Directional sliding drilling monitoring while drilling control device and control method of directional sliding drilling monitoring while drilling control device
CN104420861A (en) * 2013-08-23 2015-03-18 中国石油天然气集团公司 Method for controlling oil and gas well drilling to reduce drill string viscous resistance
CN106401467A (en) * 2016-12-12 2017-02-15 中国石油集团川庆钻探工程有限公司 Sliding drilling method
CN106437513A (en) * 2016-09-26 2017-02-22 中国石油大学(华东) Complex structural well friction resistance reduction and power drill tool face adjusting method
CN106988722A (en) * 2017-04-12 2017-07-28 中国石油天然气集团公司 Directional type rotary steering system eccentric shaft motor speed control method
CN109025801A (en) * 2018-07-06 2018-12-18 中国石油集团川庆钻探工程有限公司 Method for determining swing range of sliding drilling drill column
CN109025800A (en) * 2018-07-06 2018-12-18 中国石油集团川庆钻探工程有限公司 Top drive control system
CN109083595A (en) * 2018-09-30 2018-12-25 四川宏华电气有限责任公司 A kind of fast slide-and-guide boring method
CN109098659A (en) * 2018-07-06 2018-12-28 中国石油集团川庆钻探工程有限公司 Sliding drilling tool face adjusting method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006044737A2 (en) * 2004-10-20 2006-04-27 Comprehensive Power Inc. Method and control system for directional drilling
US7823655B2 (en) * 2007-09-21 2010-11-02 Canrig Drilling Technology Ltd. Directional drilling control
US20160090832A1 (en) * 2010-10-20 2016-03-31 Wwt North America Holdings, Inc. Electrical controller for anti-stall tools for downhole drilling assemblies and method of drilling optimization by downhole devices
US10662754B2 (en) * 2013-07-06 2020-05-26 Evolution Engineering Inc. Directional drilling apparatus and methods
US10883356B2 (en) * 2014-04-17 2021-01-05 Schlumberger Technology Corporation Automated sliding drilling
US10094209B2 (en) * 2014-11-26 2018-10-09 Nabors Drilling Technologies Usa, Inc. Drill pipe oscillation regime for slide drilling
US9784035B2 (en) * 2015-02-17 2017-10-10 Nabors Drilling Technologies Usa, Inc. Drill pipe oscillation regime and torque controller for slide drilling
US10781684B2 (en) * 2017-05-24 2020-09-22 Nabors Drilling Technologies Usa, Inc. Automated directional steering systems and methods

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067423A (en) * 1976-07-22 1978-01-10 Twin Disc, Incorporated Control system for rotary drill
US6357537B1 (en) * 2000-03-15 2002-03-19 Vermeer Manufacturing Company Directional drilling machine and method of directional drilling
US8387720B1 (en) * 2012-05-31 2013-03-05 Larry G. Keast Drilling rig with a control system for rotationally rocking a drill string with a top drive
CN104420861A (en) * 2013-08-23 2015-03-18 中国石油天然气集团公司 Method for controlling oil and gas well drilling to reduce drill string viscous resistance
CN104141482A (en) * 2014-06-28 2014-11-12 中国石油集团渤海钻探工程有限公司 Directional sliding drilling monitoring while drilling control device and control method of directional sliding drilling monitoring while drilling control device
CN106437513A (en) * 2016-09-26 2017-02-22 中国石油大学(华东) Complex structural well friction resistance reduction and power drill tool face adjusting method
CN106401467A (en) * 2016-12-12 2017-02-15 中国石油集团川庆钻探工程有限公司 Sliding drilling method
CN106988722A (en) * 2017-04-12 2017-07-28 中国石油天然气集团公司 Directional type rotary steering system eccentric shaft motor speed control method
CN109025801A (en) * 2018-07-06 2018-12-18 中国石油集团川庆钻探工程有限公司 Method for determining swing range of sliding drilling drill column
CN109025800A (en) * 2018-07-06 2018-12-18 中国石油集团川庆钻探工程有限公司 Top drive control system
CN109098659A (en) * 2018-07-06 2018-12-28 中国石油集团川庆钻探工程有限公司 Sliding drilling tool face adjusting method
CN109083595A (en) * 2018-09-30 2018-12-25 四川宏华电气有限责任公司 A kind of fast slide-and-guide boring method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李智鹏 ; 许京国 ; 陶瑞东 ; 张建荣 ; 杨静 ; 焦涛 ; .扭矩摇摆技术研究现状.钻采工艺.2016,(06),第28-30页. *
李智鹏 ; 许京国 ; 陶瑞东 ; 焦涛 ; 吴海燕 ; 安秀娟 ; .摇摆旋转钻具解决定向钻井托压难题.石油工业计算机应用.2016,(04),第52-55页. *

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