CN109763777A - Pushing type rotary guiding device - Google Patents
Pushing type rotary guiding device Download PDFInfo
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- CN109763777A CN109763777A CN201711099188.XA CN201711099188A CN109763777A CN 109763777 A CN109763777 A CN 109763777A CN 201711099188 A CN201711099188 A CN 201711099188A CN 109763777 A CN109763777 A CN 109763777A
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- Prior art keywords
- drill collar
- rib
- type rotary
- guiding device
- pushing type
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- 239000003921 oil Substances 0.000 claims abstract description 90
- 239000006071 cream Substances 0.000 claims abstract description 42
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 19
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 238000005553 drilling Methods 0.000 description 17
- 238000007789 sealing Methods 0.000 description 11
- 239000000945 filler Substances 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The present invention provides a kind of pushing type rotary guiding devices, comprising: drill collar ontology；The rib being mounted on the periphery of the drill collar ontology；The outer cylinder being set on the drill collar ontology, the relatively described drill collar ontology of the outer cylinder are remain stationary；And hydraulic control system, the hydraulic control system include shoe cream room and executing agency, the executing agency includes the oil cylinder being connected to the shoe cream room and acts on the piston on the rib；Wherein, the hydraulic control system can convey hydraulic oil between the shoe cream room and oil cylinder, and the rib radial expansion under the action of piston is moved.
Description
Technical field
The present invention relates to oil and gas well drilling technical fields, more particularly to a kind of pushing type rotary guiding device.
Background technique
In oil/gas drilling engineering, generallys use rotary steering system and drilling tool is oriented to.Currently, rotary steering
Drilling technology is the drilling technology of world's upper prong, is widely used in drilling applications.Rotary steerable tool can be with
It is automatic, continuous, adjust hole deviation and orientation, wellbore rail in real time according to the well track of setting in the state of drill string rotating
Mark controls precision height, can be realized high precision closed loop automation guiding control.Meanwhile rotary steering system is small with frictional resistance, bores
Wellbore out is round and smooth, bit speed is fast, the few advantages such as low with drilling cost of drilling failure, thus its can satisfy extended reach well,
The steerable drilling demand of the highly difficult special wells such as horizontal well, high angle hole, Multilateral Wells and three-dimensional multi target well.
The guiding principle of rotary steering system is to bias the direction of drill collar or mandrel by controlling guiding mechanism,
To realize guiding.According to the difference of guidance mode, rotary steering system can be divided into pushing type and two kinds of directional type.Backup
Formula is, by rib backup drill collar, directly to provide lateral force at drill bit for drill bit.Directional type is made by biasing mechanism
Mandrel near drill bit is bent so that drill bit is directed toward the direction for needing to creep into.Meanwhile according to the working method of rotary guiding device
Difference, and quiescent biasing formula and dynamic bias formula can be divided into.The guiding mechanism of quiescent biasing formula is not rotated with mandrel, and
The guiding mechanism of dynamic bias formula is rotated with mandrel.
Currently, dynamic pushing type rotary steering system, static pushing type rotary steering system and static directional type rotation are led
To system because it respectively has the advantage that, at home and abroad it has been commercially available and has been widely applied.Wherein, dynamic pushing type rotates
The guiding executing agency of guidance system uses upper and lower moushroom valve structure, flexible using the pressure differential rib of drilling fluid inside and outside drilling tool,
And rib rotates with outer cylinder and continuously pats the borehole wall, is not easy bit freezing.And the characteristics of static state pushing type rotary steering system is control
System maturation, each of which rib it is flexible all by a set of independent HYDRAULIC CONTROL SYSTEM, accurate, enough push away can be provided in this way
By power.Static directional type rotary steering system is bent mandrel using biasing mechanism, so that drill bit be made to be directed toward the side for needing to creep into
To build angle rate is high, and wellbore is smooth, is influenced by drilling formation lithology small.
However, dynamic and static pushing type in the prior art and directional type rotary steering system still have many disadvantages.Example
Such as, although dynamic pushing type rotary steering system is not easy bit freezing when working, the telescopic level of rib is uncontrollable, guiding force size
It is uncontrollable, simultaneously as rib is rotated with outer cylinder, lead to its poor reliability, control system is complicated.Static pushing type rotary steering
Although system control system is mature, covers independent hydraulic system more and make higher cost, power consumption is larger, and in drill collar size
Under limitation, hydraulic system structure is complicated, and the hydraulic oil and lubricating oil stored in oil cylinder is limited, and lubrication and dynamic sealing requirement are high.Refer to
The wellbore although drilled out to formula rotary steering system is smooth, but mandrel rotate when by high-intensitive alternate stress effect, be easy hair
Raw fatigue rupture.
Summary of the invention
For at least some technical problems as described above, the present invention is intended to provide a kind of pushing type rotary guiding device.
The device uses closed loop hydraulic control system, can efficiently control the stroke of rib, provide enough backup power.This closed loop
Hydraulic system is simple with structure, low energy consumption, high reliability.Meanwhile the pushing type rotary steering rib driving device
It is at low cost, process and assemble is convenient, safe and reliable, high-efficient, easy to promote and utilize.
As a result, according to the present invention, a kind of pushing type rotary guiding device is provided, comprising: drill collar ontology；It is mounted on described
Rib on the periphery of drill collar ontology；The outer cylinder being set on the drill collar ontology, the relatively described drill collar ontology of the outer cylinder are protected
It holds static；And hydraulic control system, the hydraulic control system include shoe cream room and executing agency, the executing agency includes
The oil cylinder that is connected to the shoe cream room and act on the piston on the rib；Wherein, the hydraulic control system can be in institute
It states and conveys hydraulic oil between shoe cream room and oil cylinder, the rib radial expansion under the action of piston is moved.
In a preferred embodiment, on the side surface of the close drill bit of the drill collar ontology be equipped with it is several circumferentially
Equally distributed groove, the rib are accordingly mounted in the groove.
In a preferred embodiment, cavity, the oil cylinder peace are equipped between the drill collar ontology and the rib
It is described to be mounted in the oil cylinder piston sealedly in the cavity.
In a preferred embodiment, elastic member, the elasticity are all provided between two adjacent oil cylinders
Component generates the reset force for moving the rib towards the drill collar ontology.
In a preferred embodiment, it is equipped with mud flow-conveying groove between two adjacent ribs, described
It is equipped with preceding mud hole in mud flow-conveying groove, and is equipped with corresponding rear mud hole at drill collar ontology rear, it is described forward and backward
Mud hole is connected to the slurry channel of the drill collar body interior and forms slurry loop.
In a preferred embodiment, the hydraulic control system includes being mounted on the drill collar ontology and the outer cylinder
Between pump assembly and valve module, the pump assembly and valve module be respectively positioned on the rib rear, and it is certain to be staggered in the circumferential
Angle setting.
In a preferred embodiment, the pump assembly includes motor and plunger pump, the pump assembly by motor and
Plunger pump controls hydraulic oil and flows to the shoe cream room from the oil cylinder, or flows to the oil cylinder from the shoe cream room.
In a preferred embodiment, the quantity of the valve module is equal with the quantity of the rib, and each valve
Component includes controlling the inlet solenoid valve and control the outlet solenoid valve that the rib is withdrawn that the rib stretches out.
In a preferred embodiment, the entrance of the inlet solenoid valve is connected with the outlet of the Small Plunger Pump,
The outlet of the inlet solenoid valve is connected with the oil cylinder, and the entrance of the outlet solenoid valve is connected with the oil cylinder, it is described go out
The outlet of mouth solenoid valve is connected with the shoe cream room of the hydraulic circuit, to form the hydraulic circuit.
In a preferred embodiment, several low-pressure oil storage pipes and several high pressure compensations are equipped in the hydraulic circuit
Pipe is equipped with low-pressure piston, the mud of one end of the low-pressure piston and the drill collar body interior in the low-pressure oil storage pipe
Channel is connected, and the other end is connected with the shoe cream room of the hydraulic circuit, and it is living that forward and backward high pressure is equipped in the high pressure compensation pipe
Plug, the preceding high pressure piston are connected with the outlet of plunger pump, and rear high pressure piston is connected with the shoe cream room of the hydraulic circuit.
Detailed description of the invention
The present invention will be described below with reference to accompanying drawings.
Fig. 1 shows the structure of pushing type rotary guiding device according to the present invention.
Fig. 2 and Fig. 3 shows the cross-sectional view of pushing type rotary guiding device shown in Fig. 1.
Fig. 4 shows pushing type rotary guiding device shown in Fig. 1 along the sectional view in the direction A-A.
Fig. 5 shows pushing type rotary guiding device shown in Fig. 1 along the sectional view in the direction B-B.
Fig. 6 shows pushing type rotary guiding device shown in Fig. 1 along the sectional view in the direction C-C.
Fig. 7 shows pushing type rotary guiding device shown in Fig. 4 along the sectional view in the direction E-E.
Fig. 8 shows pushing type rotary guiding device shown in Fig. 1 along the sectional view in the direction D-D.
In this application, all attached drawings are schematical attached drawing, are merely to illustrate the principle of the present invention, and not by real
Border ratio is drawn.
Specific embodiment
The present invention is introduced below by way of attached drawing.
Fig. 1 shows the structure of pushing type rotary guiding device 100 according to the present invention.As shown in Figure 1, pushing type rotates
Guiding device 100 includes drill collar ontology 11.Drill collar ontology 11 is cylindrical, is equipped with drill bit 14 in the front of drill collar ontology 11.
A part of the close drill bit 14 of drill collar ontology 11 is configured to diameter of the diameter greater than drill collar ontology 11 and forms concave portion 70
(see Fig. 2) is socketed with outer cylinder 12 at the rear portion of the concave portion 70 of drill collar ontology 11, is equipped with after sleeve at the rear portion of outer cylinder 12
18.The structure that this diameter of concave portion 70 is greater than the diameter of drill collar ontology 11 provides enough skies for the stroke of rib 13
Between.During the work time, outer cylinder 12 and after sleeve 18 play a very good protection to pushing type rotary guiding device 100.?
In the application, in 100 drilling process of pushing type rotary guiding device, front or similar term are defined as indicator device drilling
Direction, and rear portion or similar term are defined as backwards to the direction of device drilling.
Fig. 2 and Fig. 3 shows the cross-sectional view of pushing type rotary guiding device 100.As shown in Figures 2 and 3, drill collar ontology 11 is set
There is the central duct 71 being in axial direction arranged, the mandrel 16 being connected with drill bit 14, mandrel 16 are installed in central duct 71
It is gap-matched with the central duct 71 of drill collar ontology 11.The one of the close drill bit 14 of the central duct 71 of drill collar ontology 11
Radial and thrust bearing 17 is equipped between end and mandrel 16, meanwhile, between the inner wall and mandrel 16 at the rear of after sleeve 18
Equipped with radial direction and thrust bearing 17.In such manner, it is possible to the radial load and axial load for being effectively subject to drill bit 14 and mandrel 16
Drill collar ontology 11 is passed to, the frictional force between the inner wall of the central duct 71 of mandrel 16 and drill collar ontology 11 is mitigated, extension pushes away
The service life of reclining rotary guiding device 100.
According to the present invention, as shown in Fig. 2, being equipped with several grooves in the peripheral surface of the concave portion 70 of drill collar ontology 11
57, groove 57 is uniformly distributed circumferentially.For example, in the illustrated embodiment, in the circumferential direction of the concave portion 70 of drill collar ontology 11
Groove 57 there are three being uniformly arranged.A rib 13 is mounted in each groove 57.Therefore, in the present embodiment, backup
There are three ribs 13 for installation altogether for formula rotary guiding device 100, in this way, three ribs 13 are evenly distributed on the evagination of drill collar ontology 11
Around part 70.The concave portion 70 of this drill collar ontology 11 of pushing type rotary guiding device 100 and the structure of rib 13
Effectively improve the steering capability of device.
According to the present invention, pushing type rotary guiding device 100 includes hydraulic control system, and hydraulic control system includes executing
Mechanism 80.As shown in Fig. 2, executing agency 80 includes oil cylinder 20 and acts on the piston 19 on rib 13.In each 13 He of rib
Cavity 72 is equipped between drill collar ontology 11, oil cylinder 20 and piston 19 are mounted in cavity 72.For example, embodiment shown in Fig. 2
In, it is all provided in each cavity 72 there are three oil cylinder 20 and three pistons 19, each piston 19 is accordingly mounted on an oil cylinder
In 20.Elastic component 21 is equipped between two adjacent oil cylinders 20, the resilient force of elastic component 21 is on rib 13, bullet
Property power direction be directed toward drill collar ontology 11.As shown in figure 4, in drill collar ontology 11 be equipped in axial direction extend and in the circumferential
Equally distributed rib oilhole 22.For example, in the embodiment shown in fig. 4, set that there are three rib oilholes altogether in drill collar ontology 11
22, each rib oilhole 22 is connected to a corresponding cavity 72, thus three oil cylinders 20 in corresponding cavity 72.In the course of work
In, hydraulic oil flows in or out oil cylinder 20 by rib oilhole 22 to change the pressure of the hydraulic oil in oil cylinder 20, to push
Piston 19 stretches out or shrinks piston 19 under the action of elastic component 21, reaches and the stretching of rib 13 or contraction is pushed to push away to realize
The backup of reclining rotary guiding device 100 and guide function.Multiple groups piston 19 and corresponding oil are provided on drill collar ontology 11
Cylinder 20, this structure is more particularly to improving the steering capability and working efficiency of pushing type rotary guiding device 100.
In order to guarantee the sealing performance between piston 19 and oil cylinder 20, the leakage of hydraulic oil is prevented, to guarantee rib 13
Backup performance, piston 19 and oil cylinder 20 are sealed.For example, in the embodiment shown in fig. 4, piston 19 and oil cylinder 20 it
Between using Glais ring 23 carry out dynamic sealing.When selecting, guarantee have between piston 19 and oil cylinder 20 and Glais ring 23 and oil cylinder
There is suitable fit clearance, while guaranteeing the modest viscosity for the hydraulic oil selected.In this way, the leakage of hydraulic oil can not only be controlled
Amount, and the contact surface between 20 inner wall of piston 19 and oil cylinder, 20 inner wall of Glais ring 23 and oil cylinder can be made to be lubricated, and energy
It prevents environmental contaminants from entering oil cylinder 20, improves the backup performance of rib and the use longevity of piston 19 and oil cylinder 20 significantly
Life.
In addition, in order to reduce slurry resistance suffered by pushing type rotary guiding device 100 in drilling process, before reducing rib
Mud pressure difference afterwards is equipped with mud flow-conveying groove 15 between every two rib 13.As shown in figure 5, in each mud flow-conveying groove 15
Mud hole 24 before being equipped with.Axial equally distributed three are equipped in the peripheral surface of the concave portion 70 of drill collar ontology 11 as a result,
A mud flow-conveying groove 15 and three preceding mud holes 24.As shown in fig. 6, being equipped with and preceding 24 phase of mud hole at the rear portion of drill collar ontology 11
Mud hole 124 after corresponding.The slurry channel 25 axially extended is equipped with inside drill collar ontology 11 simultaneously, slurry channel 25 exists
Be uniformly distributed in circumferential direction and with rib oilhole 22 be staggered certain angle setting.For example, in the embodiment shown in fig. 6, in drill collar sheet
Three slurry channels 25 are equipped in body 11.Preceding mud hole 24 and rear mud hole 124 are connected to and shape with corresponding slurry channel 25
At slurry loop, three slurry loops are formed altogether in the illustrated embodiment.Mud in drilling process, outside drill collar ontology 11
It can be entered in the slurry channel 25 in drill collar ontology 11 by preceding mud hole 24 and rear mud hole 124.Make drill collar ontology in this way
The pressure of 11 outside mud passes to the hydraulic oil in shoe cream room 34 by slurry loop and low-pressure oil storage pipe 47, to compensate
The pressure of the hydraulic oil in oil cylinder 20 in executing agency 80, effectively improves the work of pushing type rotary guiding device 100
Efficiency.
In the present embodiment, slurry loop blocks in order to prevent, is equipped in the inlet in the preceding mud hole 24 of slurry loop
Filtering slurry net 26.Filtering slurry net 26 is fixed on drill collar ontology 11, can effectively filter the sundries in mud.
In addition, outer cylinder 12 is socketed in the rear portion of the concave portion 70 of drill collar ontology 11, outer cylinder as shown in Fig. 2, Fig. 3 and Fig. 6
There is anti-rotational structure in the inner hole at 12 rear portions.It is equipped with positioning pin 31 at the rear of drill collar ontology 11, one end of positioning pin 31 is installed
In drill collar ontology 11, the other end is mounted in the barrel of outer cylinder 12.For example, in the embodiment shown in fig. 3,12 rear of outer cylinder
Inner hole is octagonal structure 30.In the embodiment shown in fig. 6, circumferential equally distributed positioning pin there are three being set in drill collar ontology 11
31.Thereby, it is possible to effectively prevent outer cylinder 12 to move axially and rotate in a circumferential direction relative to drill collar ontology 11, structure inside drill collar ensure that
The stability and security of part.Meanwhile the rear of outer cylinder 12 be equipped with outer cylinder filter screen 32, outer cylinder filter screen 32 respectively with drill collar ontology
Rear mud hole 124 on 11 is corresponding, the mud in mud hole 124 after capable of filtering into drill collar ontology 11.
According to the present invention, the hydraulic control system of pushing type rotary guiding device 100 includes shoe cream room 34.As shown in Fig. 2,
Shoe cream room 34 is in the rear of drill collar ontology 11 and is arranged between outer cylinder 12 and drill collar ontology 11.In shoe cream room 34 and oil cylinder
Hydraulic circuit 29 is equipped between 20, so that shoe cream room 34 be made to be connected to oil cylinder 20.Hydraulic control system can be in shoe cream room as a result,
Hydraulic oil is conveyed between 34 and oil cylinder 20, so that radial expansion under the action of piston 19 of rib 13 be enable to move.
In order to guarantee the leakproofness of shoe cream room 34, prevent outside hydraulic fluid leak to pushing type rotary guiding device 100
In mud and prevent the mud outside pushing type rotary guiding device 100 from entering among hydraulic oil, to protect each hydraulic member
Device and the pressure for accurately controlling the hydraulic oil in shoe cream room 34 and oil cylinder 20 are equipped with more between outer cylinder 12 and drill collar ontology 11
Place's sealing.For example, in Fig. 2 and embodiment illustrated in fig. 3, between the forward and backward outer cylinder 12 and drill collar ontology 11 of shoe cream room 34
It is equipped with two groups of sealing rings 33.This multiple groups ring structure between outer cylinder 12 and drill collar ontology 11 is more particularly to guaranteeing oil storage
Chamber 34 has good leakproofness.
In the present embodiment, hydrostatic sensor 35 is installed in shoe cream room 34, hydrostatic sensor 35 is mounted on drill collar sheet
11 rear of body, for detecting the pressure of hydraulic oil in shoe cream room 34.
As shown in Figures 2 and 3, the hydraulic control system of pushing type rotary guiding device 100 further includes being mounted on the brill
The quickly pump assembly 27 between ontology 11 and outer cylinder 12 and valve module 28, pump assembly 27 and valve module 28 are respectively positioned on 13 rear of rib,
And the certain angle installation that is staggered in the circumferential.When installation cooperation, in pump assembly 27, valve module 28 and hydraulic circuit 29 and outer cylinder
It there are gap between 12 inner wall, is not only convenient for installing in this way, and enough space storing liquids can be provided to shoe cream room 34
Pressure oil.
According to the present invention, pump assembly 27 includes the Miniature plunger for being mounted in shoe cream room 34 and being fixed on drill collar ontology 11
Pump 36.As shown in Fig. 2, being equipped with micromotor 37 behind Small Plunger Pump 36, micromotor 37 is fixedly mounted on drill collar sheet
On body 11, and yielding coupling 38 is installed between Small Plunger Pump 36 and micromotor 37.Micromotor 37 is integrated with row
Star retarder and Hall sensor can drive Small Plunger Pump 36 to rotate by yielding coupling 38, to be rib 13
Oil cylinder 20 provide high pressure liquid pressure oil.In the present embodiment, oil cylinder 20 is directed toward in the outlet end of Small Plunger Pump 36.It is dirty in order to prevent
Dye object enters oil cylinder 20, miniature pump screen 41 is equipped in the outlet end of Small Plunger Pump 36, for filtering in hydraulic oil
Pollutant.Meanwhile miniature pump relief valve 42 is also equipped in the outlet end of Small Plunger Pump 36.When the outlet of Small Plunger Pump 36
Pressure value more than after safety value, open by miniature pump relief valve 42, and hydraulic oil flows back to shoe cream room 34.Pushing type rotary guiding device
The structure of this pump assembly 27 of 100 hydraulic control system can accurately control the pressure between shoe cream room 34 and oil cylinder 20
Difference substantially increases the backup steering capability of the device.
In the present embodiment, resilient cushion 39 is equipped on micromotor 37 and Small Plunger Pump 36.Resilient cushion 39 is by resistance to height
The elastic material of warm high pressure is made, preferably O-ring.39 sets of resilient cushion in Small Plunger Pump 36 and micromotor 37, and it is logical
Cross the compression of fixation clip 40.Effective fixed function is played to micromotor 37 and Small Plunger Pump 36 as a result, is effectively prevented
Shock and friction between each component, to improve the resistance to shock of pushing type rotary guiding device 100.
As shown in Fig. 2, valve module 28 is including inlet solenoid valve 43 and is in the subsequent outlet solenoid valve of inlet solenoid valve 43
44.Inlet solenoid valve 43 and outlet solenoid valve 44 are 2/2-way, and are in normally off.Wherein, inlet solenoid valve 43 is used
In the stretching of control rib 13, outlet solenoid valve 44 is used to control the contraction of rib 13.For this purpose, being equipped with altogether in drill collar ontology 11
Three groups of valve modules 28, every group of valve module 28 one rib 13 of corresponding control.
According to the present invention, the entrance of inlet solenoid valve 43 is connected with the outlet of Small Plunger Pump 36, inlet solenoid valve 43
Outlet is connected with the oil cylinder 20 of rib 13, and the entrance of outlet solenoid valve 44 is connected with the oil cylinder 20 of rib 13, outlet solenoid valve
44 outlet is connected with shoe cream room 34 so as to form hydraulic circuit 29.When inlet solenoid valve 43 open when, high pressure liquid pressure oil into
Enter the oil cylinder 20 of rib 13, rib 13 stretches out.When outlet solenoid valve 44 is opened, pressure decline, the wing in the oil cylinder 20 of rib 13
Rib 13 is shunk under the action of elastic component 21 is with 11 outside annular pressure of drill collar ontology.
In the present embodiment, the pollutant in order to prevent in hydraulic oil enters hydraulic circuit 29 and influences pump assembly 27 and valve
The performance of component 28 is equipped with solenoid valve filter screen 46 in the inlet of inlet solenoid valve 43 and outlet solenoid valve 44.In addition, liquid
Pressure sensor 35 is between inlet solenoid valve 43 and outlet solenoid valve 44, can monitor the hydraulic oil in the oil cylinder 20 of rib 13
Pressure.This electromagnetic valve component of the hydraulic control system of pushing type rotary guiding device 100 can accurately control rib 13
Oil cylinder 20 in operating pressure, further improve the accuracy and stability of the control system.
During the work time, when the actual pressure in oil cylinder 20 deviates setting value, control system is by adjusting micro-column
The working condition of plug pump 36, inlet solenoid valve 43 and outlet solenoid valve 44, so as to adjust the stroke of rib 13.When in oil cylinder 20
Actual pressure within the set range when, close inlet solenoid valve 43 and outlet solenoid valve 44, since hydraulic oil is incompressible, because
The overhang of this rib 13 will not change because of extraneous impact vibration.20 phase of oil cylinder of solenoid valve safety valve 45 and rib 13
Even, when pressure value is more than safety value in oil cylinder 20, solenoid valve safety valve 45 is opened, by the oil cylinder 20 and hydraulic circuit of rib 13
29 shoe cream room 34 is connected to.
According to the present invention, as shown in figure 3, being equipped between the rear of drill collar ontology 11 and the inner wall of after sleeve 18 conductive sliding
Ring.Pump assembly 27 and valve module 28 are fully immersed in hydraulic oil, and power and transmit signal by conducting slip ring 56.
As shown in fig. 7, hydraulic circuit 29 includes low-pressure oil storage pipe 47 and high pressure compensation pipe 48.For example, according to the present invention,
Three low-pressure oil storage pipes 47 and two high pressure compensation pipes 48 are equipped in hydraulic circuit 29.It is equipped in each low-pressure oil storage pipe 47 low
Piston 49 is pressed, one end of low-pressure piston 49 is connected with the slurry channel 25 on drill collar ontology 11, and the other end is connected with shoe cream room 34.
Meanwhile preceding high pressure piston 50 and rear high pressure piston 51 are equipped in each high pressure compensation pipe 48, one point is equipped between two-piston
From spring 52.Preceding 50 front of high pressure piston is connected with the outlet of Small Plunger Pump 36, is equipped with one at rear 51 rear of high pressure piston
Counterbalance spring 53, and be connected with the shoe cream room of hydraulic circuit 29 34.Low-pressure piston 49 can back and forth be transported in low-pressure oil storage pipe 47
Dynamic, preceding high pressure piston 50 and rear high pressure piston 51 can move back and forth in high pressure compensation pipe 48.Low-pressure piston 49 can not only
The pressure of the 11 outside mud of shoe cream room 34 and drill collar ontology in balanced hydraulic circuit 29, and can compensate for the work due to rib 13
The reduction of the oil storage space of shoe cream room 34 caused by hydraulic oil is revealed at the dynamic sealing of plug 19.Meanwhile cut spring 52 and compensation
Spring 53 can pressure between the outlet of balance micro plunger pump 36 and shoe cream room 34, increase the damping of hydraulic system, improve the wing
The impact resistance of the piston 19 of rib 13.The stability and its guiding of pushing type rotary guiding device 100 are substantially increased in this way
Performance.
In order to guarantee between low-pressure piston 49 and low-pressure oil storage pipe 47, between preceding high pressure piston 50 and high pressure compensation pipe 48,
There is between high pressure piston 51 and high pressure compensation pipe 48 certain sealing performance afterwards, be both needed to carry out between each piston and pipeline close
Envelope.For example, between low-pressure piston 49 and low-pressure oil storage pipe 47, between preceding high pressure piston 50 and high pressure compensation pipe 48, rear high pressure
It is all made of Glais ring 58 between piston 51 and high pressure compensation pipe 48 and carries out dynamic sealing.This movable sealing structure can not only guarantee respectively
Sealing between piston and pipeline, additionally it is possible to ensure to have certain lubricant effect to facilitate the two between each piston and pipeline
Between relative motion.
According to the present invention, several preceding oil filler points 54 and rear oil filler point 55 are respectively equipped in the forward and backward side of drill collar ontology 11.
Such as in Fig. 6 and embodiment illustrated in fig. 8, set in the front of drill collar ontology 11 there are three preceding oil filler point 54, preceding oil filler point 54 exists
The inlet solenoid valve for being uniformly distributed in the circumferential direction of drill collar ontology 11, and being stretched out with the outlet of Small Plunger Pump 36 and control rib 13
43 entrance is connected.It sets at the rear of drill collar ontology there are two rear oil filler point 55, rear oil filler point 55 is connected with shoe cream room 34.Drill collar
These oil filler points on ontology 11 can be efficiently used for hydraulic circuit 29 vacuumize and inject hydraulic oil supplement oil pressure, and
And oil filler point 55 is substantially increased and is vacuumized and the efficiency of fluid injection pressure oil after three preceding oil filler points 54 of different location and two.
Pushing type rotary guiding device 100 according to the present invention uses hydraulic control system, and executing agency 80 is using work
Plug, oil cylinder mechanism.The respective self-movement of multiple ribs 13 is driven by independent closed loop hydraulic control system, it can be according to rib
Oil cylinder 20 and extraneous pressure difference adjust the displacement of rib 13 in real time, more accurately realize the control to guiding mechanism.Hydraulic control
System transmits electric energy and signal, structure letter using the flexible of micropump and solenoid valve control rib 13, using conducting slip ring
Single, low energy consumption, high reliablity.Meanwhile pushing type rotary guiding device 100 can accurately control the stroke of rib 13, provide foot
Enough backup power, the lubrication and dynamic sealing performance between part are good, are able to satisfy the demand of steering tool.And the installation cost
Low, process and assemble is convenient, securely and reliably, high-efficient, easy to promote and utilize.
Finally it should be noted that the foregoing is merely the preferred embodiments of the invention, do not constitute to the present invention
Any restrictions.Although referring to foregoing embodiments, invention is explained in detail, for the technology of this field
It for personnel, can still modify to technical solution documented by previous embodiment, or to part of technical characteristic
It is equivalently replaced.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should all wrap
Containing within protection scope of the present invention.
Claims (10)
1. a kind of pushing type rotary guiding device (100), comprising:
Drill collar ontology (11)；
The rib (13) being mounted on the periphery of the drill collar ontology；
The outer cylinder (12) being set on the drill collar ontology, the relatively described drill collar ontology of the outer cylinder are remain stationary；And
Hydraulic control system, the hydraulic control system include shoe cream room (34) and executing agency (80), executing agency's packet
It includes the oil cylinder (20) being connected to the shoe cream room and acts on the piston (19) on the rib；
Wherein, the hydraulic control system can convey hydraulic oil between the shoe cream room and oil cylinder, enable the rib
Enough radial expansions under the action of the piston move.
2. pushing type rotary guiding device according to claim 1, which is characterized in that in the close brill of the drill collar ontology
The side surface of head is equipped with several grooves (57) being uniformly distributed circumferentially, and the rib is accordingly mounted in the groove.
3. pushing type rotary guiding device according to claim 2, which is characterized in that in the drill collar ontology and the wing
Cavity (72) are equipped between rib, the oil cylinder is mounted in the cavity, described to be mounted in the oil cylinder piston sealedly.
4. pushing type rotary guiding device according to claim 3, which is characterized in that two adjacent oil cylinders it
Between be all provided with elastic member (21), the elastic component can be generated for moving the rib towards the drill collar ontology
Reset force.
5. pushing type rotary guiding device according to claim 4, which is characterized in that two adjacent ribs it
Between be equipped with mud flow-conveying groove (15), preceding mud hole (24) is equipped in the mud flow-conveying groove, and after the drill collar ontology
Side is equipped with corresponding rear mud hole (124), and the forward and backward mud hole is connected to the slurry channel of the drill collar body interior
And form slurry loop.
6. the pushing type rotary guiding device according to any one of claim 3 to 5, which is characterized in that the hydraulic control
System processed includes the pump assembly (27) being mounted between the drill collar ontology and the outer cylinder and valve module (28), the pump assembly
It is respectively positioned on the rib rear with valve module, and the certain angle setting that is staggered in the circumferential.
7. pushing type rotary guiding device according to claim 6, which is characterized in that the pump assembly includes motor (37)
With plunger pump (36), the pump assembly controls hydraulic oil by motor and plunger pump and flows to the shoe cream room from the oil cylinder, or
The oil cylinder is flowed to from the shoe cream room.
8. pushing type rotary guiding device according to claim 6, which is characterized in that the quantity of the valve module with it is described
The quantity of rib is equal, and each valve module includes controlling described in the inlet solenoid valve (43) and control that the rib stretches out
The outlet solenoid valve (44) that rib is withdrawn.
9. pushing type rotary guiding device according to claim 8, which is characterized in that the entrance of the inlet solenoid valve with
The outlet of the Small Plunger Pump is connected, and the outlet of the inlet solenoid valve is connected with the oil cylinder, the outlet solenoid valve
Entrance is connected with the oil cylinder, and the outlet of the outlet solenoid valve is connected with the shoe cream room of the hydraulic circuit, to form institute
State hydraulic circuit (29).
10. pushing type rotary guiding device according to claim 9, which is characterized in that if being equipped in the hydraulic circuit
Dry low-pressure oil storage pipe (47) and several high pressure compensation pipes (48) are equipped with low-pressure piston (49) in the low-pressure oil storage pipe, described
One end of low-pressure piston is connected with the slurry channel of the drill collar body interior, the shoe cream room phase of the other end and the hydraulic circuit
Even, preceding high pressure piston (50) and rear high pressure piston (51), the preceding high pressure piston and plunger are equipped in the high pressure compensation pipe
The outlet of pump is connected, and the rear high pressure piston is connected with the shoe cream room of the hydraulic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099188.XA CN109763777B (en) | 2017-11-09 | 2017-11-09 | Push-back type rotary guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711099188.XA CN109763777B (en) | 2017-11-09 | 2017-11-09 | Push-back type rotary guiding device |
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| CN109763777A true CN109763777A (en) | 2019-05-17 |
| CN109763777B CN109763777B (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711099188.XA Active CN109763777B (en) | 2017-11-09 | 2017-11-09 | Push-back type rotary guiding device |
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| CN110185391A (en) * | 2019-06-21 | 2019-08-30 | 蒋璐阳 | A kind of wellbore drilling system |
| CN110219603A (en) * | 2019-07-17 | 2019-09-10 | 中国地质大学（北京） | A kind of minor diameter coring formula vertical drilling tool thrust executing agency |
| CN110261094A (en) * | 2019-07-17 | 2019-09-20 | 中国地质大学（北京） | A kind of experimental rig of vertical drill system backup mechanism |
| CN110359842A (en) * | 2019-07-17 | 2019-10-22 | 西安石油大学 | A kind of well track adjustment device of fine and close oily drilling well |
| CN111827883A (en) * | 2020-05-29 | 2020-10-27 | 中国石油天然气集团有限公司 | Rotary guide tool |
| CN113494242A (en) * | 2020-04-02 | 2021-10-12 | 中国石油化工股份有限公司 | Rotary guide tool and use method thereof |
| WO2023159940A1 (en) * | 2022-02-23 | 2023-08-31 | 中国矿业大学 | Rockburst-oriented while-drilling deviation-correcting device for anti-burst drilling robot |
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| CN110185391A (en) * | 2019-06-21 | 2019-08-30 | 蒋璐阳 | A kind of wellbore drilling system |
| CN110219603A (en) * | 2019-07-17 | 2019-09-10 | 中国地质大学（北京） | A kind of minor diameter coring formula vertical drilling tool thrust executing agency |
| CN110261094A (en) * | 2019-07-17 | 2019-09-20 | 中国地质大学（北京） | A kind of experimental rig of vertical drill system backup mechanism |
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| CN110219603B (en) * | 2019-07-17 | 2024-05-10 | 中国地质大学（北京） | Thrust actuator of small-diameter coring type vertical drilling tool |
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| CN109763777B (en) | 2020-11-17 |
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