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CN111456705A - Directional drilling ground control system, method and device - Google Patents

Directional drilling ground control system, method and device Download PDF

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Publication number
CN111456705A
CN111456705A CN201910048081.5A CN201910048081A CN111456705A CN 111456705 A CN111456705 A CN 111456705A CN 201910048081 A CN201910048081 A CN 201910048081A CN 111456705 A CN111456705 A CN 111456705A
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China
Prior art keywords
drill string
parameter data
reverse
drilling
reverse rotation
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Pending
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CN201910048081.5A
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Chinese (zh)
Inventor
张尧
王博
杨泉水
马瑞
李子良
谢海欢
谭哲
陈鹏
蔡胜清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Textile Industry Design Institute
China National Petroleum Corp
CNPC Engineering Technology R&D Co Ltd
Beijing Petroleum Machinery Co Ltd
Original Assignee
China Textile Industry Design Institute
CNPC Engineering Technology R&D Co Ltd
Beijing Petroleum Machinery Co Ltd
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Application filed by China Textile Industry Design Institute, CNPC Engineering Technology R&D Co Ltd, Beijing Petroleum Machinery Co Ltd filed Critical China Textile Industry Design Institute
Priority to CN201910048081.5A priority Critical patent/CN111456705A/en
Publication of CN111456705A publication Critical patent/CN111456705A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic 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
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling
    • E21B7/046Directional drilling horizontal drilling

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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)
  • Earth Drilling (AREA)

Abstract

The invention provides a directional drilling ground control system, a method and a device, wherein the system comprises: the system comprises an information acquisition module, a communication module and a control module; the information acquisition module is arranged on the ground and used for acquiring the rotation parameter data of the drill column on the ground; the communication module is connected with the underground equipment and is used for collecting drilling parameter data of the underground equipment; and the control module is used for determining forward and reverse rotation parameters according to the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment, and controlling the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is smaller than or equal to the minimum angle for rotating the underground tool face. The invention can convert the static friction force between the drill column and the well wall into the dynamic friction force, greatly reduces the friction between the drill column and the well wall, realizes the effects of reducing the time efficiency of the mud motor, reducing the sliding drilling operation time and improving the drilling speed of the drilling machine.

Description

Directional drilling ground control system, method and device
Technical Field
The invention relates to the field of petroleum drilling, in particular to a directional drilling ground control system, method and device.
Background
In the drilling operation, when directional drilling operation is performed on a directional well and a horizontal well, drilling is mostly performed by adopting a mud motor. When the directional drilling well drills in a sliding mode, a mud motor drives a drill bit to rotate, and a drill string above the mud motor is in a static state. When the curve section and the horizontal section are used for drilling, the drill strings of the curve section and the horizontal section are in contact with the well wall, and static friction force is generated between the drill strings and the well wall. The pressure applied to the drill bit by the ground firstly needs to overcome the static friction between the drill string and the well wall, and the static friction is increased along with the increase of the well depth and the complexity of the well condition, even the pressure of the ground cannot be applied to the drill bit. At the same time, static friction also causes difficulties in adjusting and controlling the tool face of the mud motor. The increase of static friction force is the main reason of the stalling of a mud motor, the prolonging of the operation time of sliding drilling and the increase of the operation cost, and no better solution exists at present.
Disclosure of Invention
The invention is used for solving the defects that when the existing mud motor carries out directional drilling, static friction force exists between a drill column and a well wall, the static friction force can be increased along with the well depth and the complexity of well conditions, and the increase of the static friction force can cause the stalling of the mud motor and the prolonging of sliding drilling operation.
In order to solve the above technical problems, a first aspect of the present invention provides a directional drilling surface control system, comprising: the system comprises an information acquisition module, a communication module and a control module;
the information acquisition module is arranged on the ground and used for acquiring the rotation parameter data of the drill column on the ground;
the communication module is connected with the underground equipment and is used for collecting drilling parameter data of the underground equipment;
the control module is used for determining forward and reverse rotation parameters according to the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment, and controlling the drill string to rotate forward and reverse in a reciprocating mode according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is smaller than or equal to the minimum angle enabling the underground tool face to rotate.
In a further embodiment, the directional drilling ground control system further comprises an interaction module for displaying the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment, so that a user can input forward and reverse rotation parameters according to the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment.
In a further embodiment, the information collection module comprises: and the drill string angle sensor is used for acquiring the rotation angle data of the drill string on the ground.
In a further embodiment, the drilling parameters of the downhole apparatus comprise: the system includes, for example, the downhole device's basis weight data, pumping pressure data, well deviation data, well depth data, and downhole tool face data.
In a further embodiment, the control module, prior to determining the forward-reverse rotation parameter, is further configured to:
and adjusting a relative zero point according to the downhole tool face data, and controlling the drill string to rotate according to the adjusted relative zero point.
In further embodiments, the process of the control module adjusting the relative zero point according to the downhole tool face data comprises:
comparing the downhole tool face to a target value, if the downhole tool face is equal to the target value, the relative zero point is not adjusted, if the downhole tool face is greater than the target value, the relative zero point is adjusted in a reverse direction, and if the downhole tool face is less than the target value, the relative zero point is adjusted in a forward direction.
In a further embodiment, the process of controlling the drill string to rotate back and forth according to the forward and reverse rotation parameters by the control module comprises:
step 210, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 220 after the stop time is up;
step 220, controlling the drill string to rotate in the reverse direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and entering step 230 after the stop time is up;
step 230, controlling the drill string to continue rotating in the reverse direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 240 after the stop time is up;
and 240, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and returning to the step 210 after the stop time is up.
In a further embodiment, the control module is further configured to:
monitoring the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment, judging whether the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment meet preset conditions, if the rotation parameter data of one of the drill strings at the ground or the drilling parameter data of one of the underground equipment do not meet the preset conditions, controlling the drill string to lift upwards, and if not, continuously controlling the drill string to rotate forwards and backwards in a reciprocating manner.
In a further embodiment, the forward and reverse rotation parameters include: a rotation angle in the forward and reverse directions, a rotation speed in the forward and reverse directions, and a rotation torque in the forward and reverse directions.
A second aspect of the present invention provides a surface control method for directional drilling, comprising:
acquiring rotation parameter data of a drill column at the ground and drilling parameter data of underground equipment;
setting forward and reverse rotation parameters according to the rotation parameter data of the drill column at the ground and the drilling parameter data of the underground equipment;
and controlling the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is less than or equal to the minimum angle for rotating the downhole tool face.
In a further embodiment, the determining forward and reverse rotation parameters from the rotational parameter data of the drill string at the surface and the drilling parameter data of the downhole equipment further comprises:
adjusting a relative zero point according to the downhole tool face data;
and controlling the drill string to rotate according to the adjusted relative zero point.
In a further embodiment, the adjusting the relative zero point based on the downhole tool face data comprises:
comparing the downhole tool face to a target value, if the downhole tool face is equal to the target value, the relative zero point is not adjusted, if the downhole tool face is greater than the target value, the relative zero point is adjusted in a reverse direction, and if the downhole tool face is less than the target value, the relative zero point is adjusted in a forward direction.
In a further embodiment, the step of controlling the drill string to rotate back and forth according to the forward and reverse rotation parameters comprises:
step 210, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 220 after the stop time is up;
step 220, controlling the drill string to rotate in the reverse direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and entering step 230 after the stop time is up;
step 230, controlling the drill string to continue rotating in the reverse direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 240 after the stop time is up;
and 240, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and returning to the step 210 after the stop time is up.
In a further embodiment, the directional drilling surface control method further comprises:
monitoring the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment, judging whether the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment meet preset conditions, if the rotation parameter data of one of the drill strings at the ground or the drilling parameter data of one of the underground equipment do not meet the preset conditions, controlling the drill string to lift upwards, and if not, continuously controlling the drill string to rotate forwards and backwards in a reciprocating manner.
A third aspect of the present invention provides a directional drilling surface control apparatus comprising:
the system comprises an acquisition module, a data processing module and a data processing module, wherein the acquisition module is used for acquiring rotation parameter data of a drill column at the ground and drilling parameter data of underground equipment;
the setting module is used for setting forward and reverse rotation parameters according to the rotation parameter data of the drill column at the ground and the drilling parameter data of the underground equipment;
and the control module is used for controlling the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is smaller than or equal to the minimum angle for rotating the downhole tool face.
A fourth aspect of the present invention provides a computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the directional drilling surface control method of any of the preceding embodiments when executing the computer program.
A fifth aspect of the invention provides a computer readable storage medium having stored thereon a computer program for execution by a processor to implement a directional drilling surface control method as described in any of the preceding embodiments.
According to the directional drilling ground control system, the method and the device, static friction between the drill column and the well wall can be converted into dynamic friction in a mode of rotating the drill column in a forward direction and a reverse direction in a reciprocating mode within a certain range without influencing an underground tool surface (a mud motor tool surface), friction between the drill column and the well wall is greatly reduced, the time efficiency of the mud motor is reduced, the sliding drilling operation time is shortened, and the drilling speed of a drilling machine is improved.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a first embodiment of a directional drilling surface control system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of a directional drilling surface control system in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of an interactive interface presented by the interactive module of the embodiment of the present invention;
FIG. 4 shows a flow chart of a process for controlling forward and reverse reciprocating rotation of a drill string in accordance with an embodiment of the present invention;
FIG. 5 is a flow chart of a first embodiment of a directional drilling surface control method of an embodiment of the present invention;
FIG. 6 is a flow chart of a second embodiment of a directional drilling surface control method in accordance with an embodiment of the present invention;
FIG. 7 is a flow chart of a third embodiment of a directional drilling surface control method in accordance with an embodiment of the present invention;
fig. 8 shows a block diagram of a directional drilling surface control apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the technical features and effects of the invention more obvious, the technical solution of the invention is further described below with reference to the accompanying drawings, the invention can also be described or implemented by other different specific examples, and any equivalent changes made by those skilled in the art within the scope of the claims are within the scope of the invention.
In the description herein, references to the description of the terms "some embodiments," "a particular embodiment," "for example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The sequence of steps involved in the various embodiments is provided to schematically illustrate the practice of the invention, and the sequence of steps is not limited and can be suitably adjusted as desired.
In the description of the present specification, the terms "first", "second", and the like, are used without specific reference to an order or sequential meanings, and are not intended to limit the present invention, but only to distinguish elements or operations described in the same technical terms.
In the description of the present specification, the terms "comprising," "including," "having," "containing," and the like, as used herein, are open-ended terms that mean including, but not limited to.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a first implementation of a directional drilling surface control system according to an embodiment of the present invention. This embodiment is through the mode at certain extent forward and reverse reciprocating rotation drilling string and do not influence the instrument face in the pit (mud motor instrument face), can convert the static friction between drilling string and the wall of a well into kinetic friction power, and the friction between greatly reduced drilling string and the wall of a well realizes reducing the mud motor ageing, reduces the slip and creeps into the operating time, improves the effect of drilling machine drilling rate.
Specifically, the directional drilling ground control system includes: the information acquisition module 110, the communication module 120 and the control module 130.
The information acquisition module 110 is disposed on the ground and is configured to acquire rotation parameter data of the drill string at the ground.
The communication module 120 is connected to the downhole device for collecting drilling parameter data of the downhole device.
The control module 130 is configured to determine a forward and reverse rotation parameter according to the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole device, and control the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameter, where the forward and reverse rotation angle is smaller than or equal to a minimum angle for rotating the downhole tool face.
In detail, the information collecting module 110 includes: a rotational speed torque sensor 111 and a drill string angle sensor 112. The rotating speed and torque sensor 111 is used for acquiring rotating speed data and torque data of a drill string on the ground. The drill string angle sensor 112 is used for collecting the rotation angle data of the drill string at the surface.
The communication module comprises wired and wireless communication equipment, and the invention does not limit the specific model, transmission mode and manufacturer of the communication module. Drilling parameters of downhole equipment include: the system includes, for example, the downhole device's basis weight data, pumping pressure data, well deviation data, well depth data, and downhole tool face data.
The control module may be a Central Processing Unit (CPU), or other programmable general purpose or special purpose Microprocessor (Microprocessor), Digital Signal Processor (DSP), programmable controller, Application Specific Integrated Circuit (ASIC), or other similar components or combinations thereof, and the invention is not limited in any way to the specific configuration of the control module. In specific implementation, the control module can be arranged on the ground or in a control room, and the specific position of the control module is not limited by the invention. The forward and reverse rotation parameters include: a rotation angle in the forward and reverse directions, a rotation speed in the forward and reverse directions, and a rotation torque in the forward and reverse directions.
In some embodiments of the present invention, the process of the control module 130 determining forward and reverse rotation parameters from the rotational parameter data of the drill string at the surface and the drilling parameter data of the downhole equipment comprises:
1) the forward and reverse rotational torque is related to the hanging weight data and the well deviation data of the underground equipment. The forward and reverse rotation torque is in direct proportion to the hanging weight data and the well deviation data, and the forward and reverse rotation torque is determined according to the principle that the larger the hanging weight data and the well deviation data is, the larger the forward and reverse rotation torque is.
In the specific implementation, in order to ensure the safety of reverse rotation, the reverse torque is less than or equal to half of the fastening torque of the drill rod.
2) The forward and reverse rotational speeds are related to well depth data and rotational angle data of the drill string. The forward and reverse rotation speeds are determined according to the principle that the forward and reverse rotation speeds are increased when the well depth and the rotation angle are increased.
3) The forward and reverse rotation angles are related to well deviation data, well depth data, hanging weight data, pumping pressure data, and downhole tool face data. The rotation angles in the forward direction and the reverse direction are determined according to the principles that the rotation angles in the forward direction and the reverse direction are increased when well deviation data, well depth data and hanging weight data are increased, the rotation angles in the forward direction and the reverse direction are increased when pump pressure data are increased, the rotation angles in the forward direction and the reverse direction are decreased when the downhole tool face is larger than a first preset threshold value (too large), and the rotation angles in the forward direction and the reverse direction are increased when the downhole tool face is smaller than a second preset threshold value (too small).
In some embodiments of the present invention, as shown in fig. 2, the directional drilling surface control system further comprises: an interaction module 140, the interaction module 140 is used for providing an interaction interface, as shown in fig. 3. Specifically, the interaction module is used for displaying the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment, so that a user can input forward and reverse rotation parameters according to the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment. The method can expand the determining mode of forward and reverse rotation parameters, and is beneficial to manual intervention control on forward and reverse rotation of the drill string. During specific implementation, a button for rotating forward and backward for times and/or a button for starting and stopping rotation can be arranged, so that the automatic rotation of the drill string can be conveniently controlled.
In some embodiments of the present invention, in order to ensure the rotation accuracy of the drill string, it is required to ensure that the drill string rotates forward and backward from a relative zero point, and the control module is further configured to, before determining the forward and backward rotation parameters: and adjusting a relative zero point according to the downhole tool face data, and controlling the drill string to rotate according to the adjusted relative zero point. In particular, the relative zero point is the midpoint of the forward and reverse rotation of the drill string at the surface, and may be adjusted by comparing the downhole tool face to a target value. During implementation, the relative zero point can be set by a user through an interactive interface provided by the interactive module, and the user can set the relative zero point according to the following principle: the relative zero setting is increased when the pumping pressure is increased and the downhole tool face is too small, and the relative zero setting is decreased when the pumping pressure is decreased and the downhole tool face is too large.
Specifically, the adjustment process of the relative zero point includes: comparing the downhole tool face to a target value, if the downhole tool face is equal to the target value, the relative zero point is not adjusted, if the downhole tool face is greater than the target value, the relative zero point is adjusted in a reverse direction, and if the downhole tool face is less than the target value, the relative zero point is adjusted in a forward direction.
In order to avoid that the surface forward and reverse rotation parameters cannot be timely transmitted to the underground due to the long length of the drill string, and further the drill string cannot fully rotate, in some embodiments of the present invention, as shown in fig. 4, the process of controlling the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameters by the control module includes:
step 210, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 220 after the stop time is up;
step 220, controlling the drill string to rotate in the reverse direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and entering step 230 after the stop time is up;
step 230, controlling the drill string to continue rotating in the reverse direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 240 after the stop time is up;
and 240, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and returning to the step 210 after the stop time is up.
In detail, the first time period and the second time period may be the same or different, and the specific value may be determined according to the transmission time from the ground to the downhole of the forward and reverse rotation parameters.
The embodiment can ensure that the drill string can continue to operate after being fully rotated to a corresponding position (a position needing to be steered and a relative zero point), and ensures that the drill string is fully rotated.
In some embodiments of the present invention, in order to ensure that drilling can be performed safely and smoothly, the control module is further configured to:
monitoring the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment, judging whether the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment meet preset conditions (for example, the pump pressure is greater than a preset threshold), if the rotation parameter data of one of the drill strings at the ground or the drilling parameter data of one of the downhole equipment do not meet the preset conditions, controlling the drill string to lift upwards, and if not, continuously controlling the drill string to rotate forwards and backwards in a reciprocating mode.
In specific implementation, in order to enable a worker to know the drilling condition as soon as possible, when the rotation parameter data of one of the drill strings on the ground or the drilling parameter data of one of the underground equipment are not met, alarm information is sent so as to remind the worker to carry out exception handling.
As shown in fig. 5, fig. 5 is a flow chart of a first implementation of a directional drilling surface control method according to an embodiment of the present invention. This embodiment is through the mode at certain extent forward and reverse reciprocating rotation drilling string and do not influence the instrument face in the pit (mud motor instrument face), can convert the static friction between drilling string and the wall of a well into kinetic friction power, and the friction between greatly reduced drilling string and the wall of a well realizes reducing the mud motor ageing, reduces the slip and creeps into the operating time, improves the effect of drilling machine drilling rate.
Specifically, the directional drilling ground control method comprises the following steps:
step 510, obtaining rotation parameter data of a drill string at the ground and drilling parameter data of underground equipment;
step 530, setting forward and reverse rotation parameters according to the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment;
and 550, controlling the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is smaller than or equal to the minimum angle for rotating the downhole tool face.
In some embodiments of the present invention, in order to ensure the rotation accuracy of the drill string, it is required to ensure that the drill string rotates forward and backward from a relative zero point, as shown in fig. 6, before the step 530 sets the forward and backward rotation parameters according to the rotation parameter data of the drill string at the surface and the drilling parameter data of the downhole equipment, the method further includes:
step 520, adjusting a relative zero point according to the downhole tool face data; and controlling the drill string to rotate according to the adjusted relative zero point.
Specifically, the adjustment process of the relative zero point includes: comparing the downhole tool face to a target value, if the downhole tool face is equal to the target value, the relative zero point is not adjusted, if the downhole tool face is greater than the target value, the relative zero point is adjusted in a reverse direction, and if the downhole tool face is less than the target value, the relative zero point is adjusted in a forward direction.
In some embodiments of the present invention, referring back to fig. 2, the step 550 of controlling the drill string to rotate back and forth according to the parameters of the rotation of the drill string comprises:
step 210, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 220 after the stop time is up;
step 220, controlling the drill string to rotate in the reverse direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and entering step 230 after the stop time is up;
step 230, controlling the drill string to continue rotating in the reverse direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 240 after the stop time is up;
and 240, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and returning to the step 210 after the stop time is up.
In some embodiments of the present invention, in order to ensure that the drilling can be performed safely and smoothly, as shown in fig. 7, the directional drilling ground control method further includes:
step 570, monitoring the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment, and judging whether the rotation parameter data of the drill string at the ground and the drilling parameter data of the downhole equipment meet preset conditions, if the rotation parameter data of one of the drill strings at the ground or the drilling parameter data of one of the downhole equipment do not meet the preset conditions, controlling the drill string to lift upwards, otherwise, continuously controlling the drill string to perform forward and reverse reciprocating rotation.
Based on the same inventive concept, the embodiment of the invention also provides a directional drilling ground control device, as described in the following embodiments. Because the principle of the device for solving the problems is similar to the directional drilling ground control method, the implementation of the device can refer to the implementation of the directional drilling ground control method, and repeated details are not repeated.
As shown in fig. 8, the directional drilling surface control apparatus includes:
an obtaining module 810, configured to obtain rotation parameter data of a drill string at the surface and drilling parameter data of downhole equipment;
a setting module 820, configured to set forward and reverse rotation parameters according to the rotation parameter data of the drill string at the surface and the drilling parameter data of the downhole equipment;
and the control module 830 is configured to control the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameter, wherein the forward and reverse rotation angle is smaller than or equal to the minimum angle for rotating the downhole tool face.
In some embodiments of the present invention, there is also provided a computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing any of the foregoing directional drilling surface control methods when executing the computer program.
In some embodiments of the present invention, there is also provided a computer readable storage medium having stored thereon a computer program for execution by a processor to implement any of the methods for directional drilling surface control described above.
The present invention has the advantages of ① high control accuracy, using angle control, drill string rotation angle can be controlled at 1%, ② to increase rate of penetration during directional drilling sliding drilling, ③ to reduce mud motor stall, effectively increase motor life, ④ to allow for accurate and effective tool face adjustment, reduce tool face adjustment time, ⑤ to provide a simple structure that can be easily installed and debugged at the surface, is adaptable to a variety of drill string drives, and does not require downhole tools, reducing downhole operational risks.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only for the purpose of illustrating the present invention, and any person skilled in the art can modify and change the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of the claims should be accorded the full scope of the claims.

Claims (17)

1. A directional drilling surface control system, comprising: the system comprises an information acquisition module, a communication module and a control module;
the information acquisition module is arranged on the ground and used for acquiring the rotation parameter data of the drill column on the ground;
the communication module is connected with the underground equipment and is used for collecting drilling parameter data of the underground equipment;
the control module is used for determining forward and reverse rotation parameters according to the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment, and controlling the drill string to rotate forward and reverse in a reciprocating mode according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is smaller than or equal to the minimum angle enabling the underground tool face to rotate.
2. The system of claim 1, further comprising an interaction module for displaying the rotational parameter data of the drill string at the surface and the drilling parameter data of the downhole equipment to enable a user to input forward and reverse rotational parameters based on the rotational parameter data of the drill string at the surface and the drilling parameter data of the downhole equipment.
3. The system of claim 2, wherein the information collection module comprises: and the drill string angle sensor is used for acquiring the rotation angle data of the drill string on the ground.
4. The system of claim 2, wherein the drilling parameters of the downhole device comprise: the system includes, for example, the downhole device's basis weight data, pumping pressure data, well deviation data, well depth data, and downhole tool face data.
5. The system of claim 4, wherein the control module, prior to determining the forward-reverse rotation parameter, is further to:
and adjusting a relative zero point according to the downhole tool face data, and controlling the drill string to rotate according to the adjusted relative zero point.
6. The system of claim 5, wherein the process of the control module adjusting the relative zero point based on the downhole tool face data comprises:
comparing the downhole tool face to a target value, if the downhole tool face is equal to the target value, the relative zero point is not adjusted, if the downhole tool face is greater than the target value, the relative zero point is adjusted in a reverse direction, and if the downhole tool face is less than the target value, the relative zero point is adjusted in a forward direction.
7. The system of claim 5, wherein the control module controls the drill string to rotate back and forth according to the forward and reverse rotation parameters by:
step 210, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 220 after the stop time is up;
step 220, controlling the drill string to rotate in the reverse direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and entering step 230 after the stop time is up;
step 230, controlling the drill string to continue rotating in the reverse direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 240 after the stop time is up;
and 240, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and returning to the step 210 after the stop time is up.
8. The system of claim 5, wherein the control module is further to:
monitoring the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment, judging whether the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment meet preset conditions, if the rotation parameter data of one of the drill strings at the ground or the drilling parameter data of one of the underground equipment do not meet the preset conditions, controlling the drill string to lift upwards, and if not, continuously controlling the drill string to rotate forwards and backwards in a reciprocating manner.
9. The system of any one of claims 1 to 8, wherein the forward-reverse rotation parameters comprise: a rotation angle in the forward and reverse directions, a rotation speed in the forward and reverse directions, and a rotation torque in the forward and reverse directions.
10. A method of directional drilling surface control, comprising:
acquiring rotation parameter data of a drill column at the ground and drilling parameter data of underground equipment;
setting forward and reverse rotation parameters according to the rotation parameter data of the drill column at the ground and the drilling parameter data of the underground equipment;
and controlling the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is less than or equal to the minimum angle for rotating the downhole tool face.
11. The method of claim 10, wherein determining forward and reverse rotation parameters from the rotational parameter data of the drill string at the surface and the drilling parameter data of downhole equipment further comprises:
and adjusting a relative zero point according to the downhole tool face data, and controlling the drill string to rotate according to the adjusted relative zero point.
12. The method of claim 11, wherein the adjusting a relative zero point from the downhole tool face data comprises:
comparing the downhole tool face to a target value, if the downhole tool face is equal to the target value, the relative zero point is not adjusted, if the downhole tool face is greater than the target value, the relative zero point is adjusted in a reverse direction, and if the downhole tool face is less than the target value, the relative zero point is adjusted in a forward direction.
13. The method of claim 11, wherein controlling the drill string to rotate back and forth according to the forward and reverse rotation parameters comprises:
step 210, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 220 after the stop time is up;
step 220, controlling the drill string to rotate in the reverse direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and entering step 230 after the stop time is up;
step 230, controlling the drill string to continue rotating in the reverse direction according to the forward and reverse rotation parameters, stopping for a first time period when the drill string rotates to a position for changing the direction, and entering step 240 after the stop time is up;
and 240, controlling the drill string to rotate in the positive direction according to the forward and reverse rotation parameters, stopping for a second time period when the drill string rotates to a relative zero point, and returning to the step 210 after the stop time is up.
14. The method of claim 10, further comprising:
monitoring the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment, judging whether the rotation parameter data of the drill string at the ground and the drilling parameter data of the underground equipment meet preset conditions, if the rotation parameter data of one of the drill strings at the ground or the drilling parameter data of one of the underground equipment do not meet the preset conditions, controlling the drill string to lift upwards, and if not, continuously controlling the drill string to rotate forwards and backwards in a reciprocating manner.
15. A directional drilling surface control apparatus, comprising:
the system comprises an acquisition module, a data processing module and a data processing module, wherein the acquisition module is used for acquiring rotation parameter data of a drill column at the ground and drilling parameter data of underground equipment;
the setting module is used for setting forward and reverse rotation parameters according to the rotation parameter data of the drill column at the ground and the drilling parameter data of the underground equipment;
and the control module is used for controlling the drill string to perform forward and reverse reciprocating rotation according to the forward and reverse rotation parameters, wherein the forward and reverse rotation angle is smaller than or equal to the minimum angle for rotating the downhole tool face.
16. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 10 to 14 when executing the computer program.
17. A computer-readable storage medium, characterized in that the computer-readable storage medium stores an executable computer program, which when executed by a processor implements the method of any one of the following claims 10 to 14.
CN201910048081.5A 2019-01-18 2019-01-18 Directional drilling ground control system, method and device Pending CN111456705A (en)

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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
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