CN204266921U - Static pushing type rotary guiding device - Google Patents
Static pushing type rotary guiding device Download PDFInfo
- Publication number
- CN204266921U CN204266921U CN201420569228.8U CN201420569228U CN204266921U CN 204266921 U CN204266921 U CN 204266921U CN 201420569228 U CN201420569228 U CN 201420569228U CN 204266921 U CN204266921 U CN 204266921U
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- China
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- guiding device
- overcoat
- type rotary
- rotary guiding
- mandrel
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Abstract
The utility model relates to a kind of static pushing type rotary guiding device, and it comprises: the mandrel with central passage, and the outer wall of mandrel offers circumferential recess; To be socketed in circumferential recess and the overcoat that can independently rotate; Can cut off or transmit the clutch of the power that mandrel inputs to overcoat.Both its dynamic moment of inertia can not have been reduced when not needing to provide angular force in steady tilted section, vertically section and horizontal segment according to static pushing type rotary guiding device of the present utility model, also can not reduce the energy storage of its inside, thus be beneficial to the drilling well of the drill bit efficient stable being in its downstream.
Description
Technical field
The utility model relates to petroleum drilling technology field, particularly relates to a kind of static pushing type rotary guiding device.
Background technology
In drilling technology field, rotary steerable drilling system is widely used, rotary steering system can according to the needs of TRAJECTORY CONTROL in rotary drilling process, real-time adjustment hole deviation and orientation, have that hole trajectory control precision well that is high, that get out is round and smooth, frictional resistance is little, moment of torsion is little, drilling well extreme displacement is large, drilling failure is few, bit speed is fast and the advantage such as drilling cost is low, therefore it can meet the demand of the highly difficult special well steerable drillings such as horizontal well, extended reach well and three-dimensional multi target well.
The working mechanism of rotary steerable drilling system is all rely on the offset guide mechanism of rotary guiding device to make drill bit or drill string that direction skew occur, thus produces guiding.According to the difference of guidance mode, this rotary guiding device can be divided into pushing type and directional type two kinds.Pushing type provides lateral force directly to drill bit near drill bit, and directional type is that the drill string of bending drill bit vicinity is to make bit heading hole trajectory control direction.Meanwhile, quiescent biasing formula and dynamic bias formula two kinds can be divided into again according to the working method of offset guide mechanism.Quiescent biasing formula refers to that offset guide mechanism does not rotate in drilling process together with drill string, thus provides lateral force on certain fixed-direction; Dynamic bias formula refers to that offset guide mechanism rotates in drilling process together with drill string, relies on control system to make it provide guiding force in certain orientation for place expenditure.But the partial properties due to static pushing type rotary guiding device is superior to the rotary guiding device of other types, static pushing type rotary guiding device is widely applied.
But also there is very large shortcoming in existing static pushing type rotary guiding device.Although this static pushing type rotary guiding device can provide accurate, sufficient angular force in inclination section, but its dynamic moment of inertia can be reduced when not needing to provide angular force in steady tilted section, vertically section and horizontal segment, reduce the energy storage of its inside, thus be unfavorable for the drilling well of drill bit efficient stable, especially affect more outstanding in deep-well, extended reach well.
Utility model content
In order to solve the problem, the purpose of this utility model is to provide a kind of static pushing type rotary guiding device, it both can not reduce its dynamic moment of inertia when not needing to provide angular force in steady tilted section, vertically section and horizontal segment, also can not reduce the energy storage of its inside, thus be beneficial to the drilling well of drill bit efficient stable.
The utility model provides a kind of static pushing type rotary guiding device, and it comprises: the mandrel with central passage, and the outer wall of mandrel offers circumferential recess; To be socketed in circumferential recess and the overcoat that can independently rotate; Can cut off or transmit the clutch of the power that mandrel inputs to overcoat.
In one embodiment, clutch comprises and to be located between mandrel and overcoat and to be respectively used to actuate the driving link and driven member that mandrel and overcoat rotate, and to be arranged in overcoat and for actuating the pushing unit that driven member to be separated from each other with driving link or to engage.
In one embodiment, pushing unit at least one clutch hydraulic cylinder of being at least one linear electric motors or can being driven by hydraulic power supply.
In one embodiment, driving link and driven member be respectively can pitch wheel, the spline piece cooperatively interacted or phase mutual friction friction pulley.
In one embodiment, driven member is fixed on outside the end of overcoat by the piston rod being arranged on the clutch hydraulic cylinder in overcoat, and driving link is fixed on the groove sidewall of circumferential recess, so that the piston rod of clutch hydraulic cylinder can impel driven member engage with driving link or be separated after stretching motion.
In one embodiment, journal bearing is provided with between the inwall of overcoat and the groove bottom of the circumferential recess of mandrel, and between the two ends of overcoat and the groove sidewall of circumferential recess, being respectively equipped with thrust bearing, driving link and driven member are all in radially inner side or the radial outside of thrust bearing.
In one embodiment, static pushing type rotary guiding device also comprises for providing the offset guide mechanism of lateral force and the observing and controlling mechanism that can control offset guide mechanism and clutch, and for providing the administration of power supply of electric power.
In one embodiment, offset guide mechanism comprises the multiple swing type ribs be circumferentially arranged at interval in the outer wall of overcoat, so that lateral force required when providing guiding.
In one embodiment, offset guide mechanism also comprises and can drive by hydraulic power supply the rib hydraulic cylinder also can actuated swing type rib and carry out swinging.
In one embodiment, observing and controlling mechanism comprises the rib control unit be connected between hydraulic power supply and rib hydraulic cylinder and the clutch control unit be connected between hydraulic power supply and clutch hydraulic cylinder, and the first pressure sensor for the pressure that detects the fluid in clutch hydraulic cylinder and the second pressure sensor for the pressure that detects the fluid in rib hydraulic cylinder.
In this application, described upstream is defined as the direction near well head, and described downstream is defined as the direction away from well head.
Can cut off by clutch or transmit according to static pushing type rotary guiding device of the present utility model the power that mandrel inputs to overcoat, when drilling process needs guiding, this static pushing type rotary guiding device can cut off the power that mandrel inputs to overcoat, allow overcoat not follow mandrel to carry out rotating but static relative to the borehole wall, thus ensure that the angular force that this static pushing type rotary guiding device provides is precisely sufficient, so that the smooth travel direction skew of drill bit; When drilling process does not need guiding, this static pushing type rotary guiding device mandrel power transmission to overcoat, can impel overcoat to follow mandrel synchronous rotary, improves the dynamic moment of inertia of this rotary guiding device, increase the storage of its energy, be conducive to the drilling well of drill bit efficient stable.
Simple and compact for structure, easy to process according to static pushing type rotary guiding device of the present utility model, easily, use safety is efficient in assembling, is convenient to practice and extension application.
Accompanying drawing explanation
Also will be described in more detail the utility model with reference to accompanying drawing based on embodiment hereinafter.Wherein:
Fig. 1 is the structural representation according to static pushing type rotary guiding device of the present utility model;
Fig. 2 shows clutch according to static pushing type rotary guiding device of the present utility model and mandrel; And
Fig. 3 is according to the static partial circuit of pushing type rotary guiding device of the present utility model and the complex chart of hydraulic pressure.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to the scale of reality.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 shows according to static pushing type rotary guiding device 100 (hereinafter referred to as rotary guiding device 100) of the present utility model.This rotary guiding device 100 can actuate drill bit or the smooth travel direction skew of drill string, thus produces guide effect.
This rotary guiding device 100 comprises the mandrel 12 with central passage 12a.The upstream extremity (near the end in left side in Fig. 1) of mandrel 12 is connected with drilling tool or MTR by helicitic texture, and downstream (near the end on right side in Fig. 1) is also connected by the crossover sub of helicitic texture with drilling rod or drill bit.The outer wall of mandrel 12 offers circumferential recess 12b.Circumferential recess 12b can be in the centre of mandrel 12, and it is made up of two annular groove sidewalls and groove bottom.
This rotary guiding device 100 also comprises and being socketed in circumferential recess 12b and the overcoat 14 that can independently rotate.In order to install overcoat 14, mandrel 12 needs to be configured to be made up of two parts detachable from one another.Journal bearing (such as deep groove ball bearing) is provided with, to allow overcoat 14 to carry out independent rotation between the inwall of overcoat 14 and the groove bottom of the circumferential recess 12b of mandrel 12.Simultaneously, thrust bearing 19 is provided with between the upstream extremity and the groove sidewall of circumferential recess 12b of overcoat 14, between the downstream and an another groove sidewall of circumferential recess 12b of overcoat, be also provided with thrust bearing 19, to provide axial support to mandrel 12, the pressure of the drill, drilling tool weight etc. can be born.
According to the utility model, this rotary guiding device 100 also comprises the clutch 18 that can cut off or transmit the power that mandrel 12 inputs to overcoat 14.Existing static pushing type rotary guiding device, in order to ensure that it can provide accurate, sufficient angular force in inclination section, needs its mandrel structure to become independently to rotate all the time relative to overcoat.But, because this rotary guiding device does not need to provide angular force in steady tilted section, vertically section and horizontal segment, therefore the overcoat can not following mandrel rotation can reduce the dynamic moment of inertia of this device, reduce the storage of its internal energy, thus be unfavorable for the drilling well of drill bit efficient stable, especially affect more outstanding in deep-well, extended reach well.And the rotary guiding device 100 that the utility model improves can cut off or transmit by clutch 18 power that mandrel 12 inputs to overcoat 14, when drilling process needs guiding, this rotary guiding device 100 can cut off the power that mandrel 12 inputs to overcoat 14, allow overcoat 14 not follow mandrel 12 to carry out rotating but static relative to the borehole wall, thus can ensure that the angular force that this rotary guiding device 100 provides is precisely sufficient, so that the smooth travel direction skew of drill bit; When drilling process does not need guiding, this rotary guiding device 100 mandrel 12 power transmission to overcoat 14, can impel overcoat 14 to follow mandrel 12 and carries out synchronous rotary, improve the dynamic moment of inertia of this rotary guiding device 100, increase the storage of its energy, thus be conducive to the drilling well of drill bit efficient stable.
As shown in Figure 2, this clutch 18 can comprise and is located at driving link 21 between mandrel 12 and overcoat 14 and driven member 20, and actuates the pushing unit 19 that driving link 21 is separated from each other with driven member 20 or engages.Pushing unit 19 being separated by driving link 21 and driven member 20 or being engaged, and can realize cut-out and the joint of the power between mandrel 12 and overcoat 14.
Pushing unit 19 can be at least one linear electric motors, hydraulic cylinder or electromagnetic potential moving mechanism.In this embodiment, pushing unit 19 comprises at least one clutch hydraulic cylinder 180 (see Fig. 3) that can be driven by hydraulic power supply 45.This clutch hydraulic cylinder 180 can drive driven member 20 to carry out being separated or engaging with driving link 21, to realize cut-out and the joint of the power between mandrel 12 and overcoat 14.Driven member 20 and driving link 21 are all arranged on radial outside or the radially inner side of thrust bearing 19.Driven member 20 and driving link 21 be chosen as respectively can pitch wheel, the spline piece cooperatively interacted or phase mutual friction friction pulley.
It should be noted that, between comprising between described mandrel 12 and overcoat 14 axially between the groove bottom of the inwall of overcoat 14 and the circumferential recess 12b of mandrel 12 (i.e. between) and radial direction (namely between the end of overcoat 14 and the groove sidewall of circumferential recess 12b).Driving link 21 and driven member 20 both can be arranged between radial direction, between also can being arranged on axially.When driving link 21 and driven member 20 are arranged between radial direction, driven member 20 is fixed on outside the end of overcoat 14 by the piston rod being arranged on the clutch hydraulic cylinder 180 in overcoat 14, and driving link 21 is fixed on the groove sidewall of circumferential recess 12b, so that the piston rod of this clutch hydraulic cylinder 180 can impel driven member 20 to carry out engaging or being separated with driving link 21 after stretching motion.When driving link 21 and driven member 20 are arranged between axis, the projection that the piston rod that driving link 21 may be selected to the clutch hydraulic cylinder 180 that can be arranged in overcoat 14 is radially released, so that it can enter in the depression (i.e. driving link 21) that is formed in the groove bottom of circumferential recess 12b, thus realize being separated or engaging of driven member 20 and driving link 21.
Also comprise according to static pushing type rotary guiding device 100 of the present utility model and the offset guide mechanism 30 of lateral force is provided, the observing and controlling mechanism 40 of offset guide mechanism 30 and clutch 18 can be controlled and provides the administration of power supply of electric energy for this rotary guiding device 100.Described administration of power supply belongs to well known to those skilled in the art, and no further details to be given herein.
Offset guide mechanism 30 comprises the swing type rib 17 in the outer wall being circumferentially arranged on overcoat 14 at interval.Swing type rib 17 can be resisted against the borehole wall its end after swing, to provide lateral force.In order to actuate this swing type rib 17, this offset guide mechanism 30 also comprise driven by hydraulic power supply 45 can actuate the rib hydraulic cylinder 170 that swing type rib 17 carries out swinging.This rib hydraulic cylinder 170 can be replaced by linear electric motors or electromagnetic potential moving mechanism.But compared to linear electric motors and electromagnetic potential moving mechanism, this rib hydraulic cylinder 170 can provide larger lateral force.The hydraulic power supply 45 that rib hydraulic cylinder 170 is applied and the hydraulic power supply 45 that clutch hydraulic cylinder 180 is applied drive and can be combined into one, and the hydraulic pump be preferably connected with fuel tank.In this way, be convenient to impel structure to become simply compact, thus facilitate processing and manufacturing, cost-saving.
As shown in Figure 3, observing and controlling mechanism 40 comprises the rib control unit 171 be connected between hydraulic power supply 45 and rib hydraulic cylinder 170, so as its can control swing type rib 17 in time, exactly arrange degree, thus provide required lateral force when leading.This observing and controlling mechanism 40 also comprises the clutch control unit 181 be connected between hydraulic power supply 45 and clutch hydraulic cylinder 180, so that it can the separation of solenoidoperated cluthes 18 in time and joint.Wherein, described rib control unit 171 and clutch control unit 181 all belong to well known to those skilled in the art, and no further details to be given herein.
For the ease of solenoidoperated cluthes 18 and swing type rib 17 more accurately, this observing and controlling mechanism 40 also comprises the first pressure sensor 41 of the pressure for detecting the fluid in clutch hydraulic cylinder 180 and the second pressure sensor 42 for the pressure that detects the fluid in defeated rib hydraulic cylinder 170.Thus, this observing and controlling mechanism 40 can monitor in real time the duty of the expansion degree of swing type rib 17 and clutch and regulate.
Observing and controlling mechanism 40 also comprises 3-axis acceleration sensor, measurement processing circuit, motor driver, controller 46 etc.3-axis acceleration sensor rotates the spatial attitude of this rotary guiding device 100 for detecting, comprise the tool face azimuth of the hole angle of its present position, each swing type rib 17.Three axis accelerometer and each pressure sensor are calculated fast by controller 46, obtain hydraulic coupling size suffered by the spatial attitude of rotary steerable tool and swing type rib 17.The duty of Real-Time Monitoring hydraulic power supply 45 gone back by controller 46, according to the hydraulic coupling size of each rib hydraulic cylinder 170, by corresponding control algolithm, adjusts this hydraulic power supply 45, impels each swing type rib 17 to carry out corresponding swing respectively.Described 3-axis acceleration sensor, measurement processing circuit, motor driver, controller all belong to well known to those skilled in the art, are not described in more detail at this.
Below introduce the operating principle according to static pushing type rotary guiding device 100 of the present utility model.After rotary guiding device 100 is opened, the controller 46 of observing and controlling mechanism 40 cuts off being carried out solenoidoperated cluthes 18 by clutch control unit 181 power that mandrel 12 inputs to overcoat 14, then control rib hydraulic cylinder 170 by rib control unit 171 to actuate each swing type rib 17 respectively and carry out corresponding arranging, to provide the lateral force needed for guiding.After guiding completes, controller 46 carrys out by clutch control unit 181 power that solenoidoperated cluthes 18 drive mandrel 12 inputs to overcoat 14, impel overcoat 14 to follow mandrel 12 and carry out synchronous rotary, improve the dynamic moment of inertia of this rotary guiding device 100, increase the storage of its energy, thus be conducive to the drilling well of drill bit efficient stable.
Both its dynamic moment of inertia can not have been reduced when not needing to provide angular force in steady tilted section, vertically section and horizontal segment according to static pushing type rotary guiding device 100 of the present utility model, also can not reduce the energy storage of its inside, thus be beneficial to the drilling well of the drill bit efficient stable being in its downstream.
Although be described the utility model with reference to preferred embodiment, when not departing from scope of the present utility model, various improvement can be carried out to it and parts wherein can be replaced with equivalent.Especially, only otherwise there is structural hazard, the every technical characteristic mentioned in each embodiment all can combine in any way.The utility model is not limited to specific embodiment disclosed in literary composition, but comprises all technical schemes fallen in the scope of claim.
Claims (10)
1. a static pushing type rotary guiding device, is characterized in that, comprising:
There is the mandrel of central passage, the outer wall of described mandrel offers circumferential recess;
To be socketed in described circumferential recess and the overcoat that can independently rotate; And
Can cut off or transmit the clutch of the power that described mandrel inputs to described overcoat.
2. static pushing type rotary guiding device according to claim 1, it is characterized in that, described clutch comprises and to be located between described mandrel and overcoat and to be respectively used to actuate the driving link and driven member that described mandrel and overcoat rotate, and be arranged in described overcoat for actuating the pushing unit that described driven member is separated from each other with described driving link or engages.
3. static pushing type rotary guiding device according to claim 2, is characterized in that, at least one clutch hydraulic cylinder that described pushing unit is at least one linear electric motors or can be driven by hydraulic power supply.
4. static pushing type rotary guiding device according to claim 3, is characterized in that, described driving link and driven member be respectively can pitch wheel, the spline piece cooperatively interacted or phase mutual friction friction pulley.
5. static pushing type rotary guiding device according to claim 4, it is characterized in that, described driven member is fixed on outside the end of described overcoat by the piston rod being arranged on the described clutch hydraulic cylinder in described overcoat, and described driving link is fixed on the groove sidewall of described circumferential recess, described clutch hydraulic cylinder is constructed to be permeable to after its stretching motion, impel described driven member to engage with described driving link or be separated.
6. the static pushing type rotary guiding device according to any one of claim 1 to 5, it is characterized in that, journal bearing is provided with between the inwall of described overcoat and the groove bottom of the described circumferential recess of described mandrel, and between the two ends of described overcoat and the groove sidewall of described circumferential recess, being respectively equipped with thrust bearing, described driving link and driven member are all in radially inner side or the radial outside of described thrust bearing.
7. the static pushing type rotary guiding device according to any one of claim 3 to 5, it is characterized in that, also comprise for providing the offset guide mechanism of lateral force and the observing and controlling mechanism that can control described offset guide mechanism and clutch, and for providing the administration of power supply of electric power.
8. static pushing type rotary guiding device according to claim 7, is characterized in that, described offset guide mechanism comprise circumferentially be arranged on described overcoat at interval outer wall in multiple swing type ribs so that lateral force required when providing guiding.
9. static pushing type rotary guiding device according to claim 8, is characterized in that, described offset guide mechanism also comprises and can drive by described hydraulic power supply the rib hydraulic cylinder also can actuated described swing type rib and carry out swinging.
10. static pushing type rotary guiding device according to claim 9, it is characterized in that, described observing and controlling mechanism comprises the rib control unit be connected between described hydraulic power supply and rib hydraulic cylinder and the clutch control unit be connected between described hydraulic power supply and clutch hydraulic cylinder, and the first pressure sensor for the pressure that detects the fluid in described clutch hydraulic cylinder and the second pressure sensor for the pressure that detects the fluid in described rib hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569228.8U CN204266921U (en) | 2014-09-29 | 2014-09-29 | Static pushing type rotary guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569228.8U CN204266921U (en) | 2014-09-29 | 2014-09-29 | Static pushing type rotary guiding device |
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| Publication Number | Publication Date |
|---|---|
| CN204266921U true CN204266921U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420569228.8U Withdrawn - After Issue CN204266921U (en) | 2014-09-29 | 2014-09-29 | Static pushing type rotary guiding device |
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| CN (1) | CN204266921U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016050142A1 (en) * | 2014-09-29 | 2016-04-07 | 中石化胜利石油工程有限公司钻井工艺研究院 | Push-the-bit rotary steerable device and method for using same |
| CN105525872A (en) * | 2014-09-29 | 2016-04-27 | 中国石油化工集团公司 | Static pushing type rotating guide device |
| CN106285478A (en) * | 2016-09-26 | 2017-01-04 | 西南石油大学 | Pushing type full rotation steering tool |
| CN106761402A (en) * | 2016-11-15 | 2017-05-31 | 中国石油天然气集团公司 | Continuous pipe drilling well directional orientation tool |
| CN111980582A (en) * | 2019-05-21 | 2020-11-24 | 万晓跃 | Locking device of static bias rotary guide underground rotary structure |
-
2014
- 2014-09-29 CN CN201420569228.8U patent/CN204266921U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016050142A1 (en) * | 2014-09-29 | 2016-04-07 | 中石化胜利石油工程有限公司钻井工艺研究院 | Push-the-bit rotary steerable device and method for using same |
| CN105525872A (en) * | 2014-09-29 | 2016-04-27 | 中国石油化工集团公司 | Static pushing type rotating guide device |
| WO2016050141A3 (en) * | 2014-09-29 | 2016-05-26 | 中石化胜利石油工程有限公司钻井工艺研究院 | Static push-type rotary directional device |
| CN105525872B (en) * | 2014-09-29 | 2018-03-09 | 中国石油化工集团公司 | Static pushing type rotary guiding device |
| CN106285478A (en) * | 2016-09-26 | 2017-01-04 | 西南石油大学 | Pushing type full rotation steering tool |
| CN106285478B (en) * | 2016-09-26 | 2018-05-08 | 西南石油大学 | Pushing type full rotation steering tool |
| CN106761402A (en) * | 2016-11-15 | 2017-05-31 | 中国石油天然气集团公司 | Continuous pipe drilling well directional orientation tool |
| CN106761402B (en) * | 2016-11-15 | 2019-05-07 | 中国石油天然气集团有限公司 | Continuous pipe drilling well directional orientation tool |
| CN111980582A (en) * | 2019-05-21 | 2020-11-24 | 万晓跃 | Locking device of static bias rotary guide underground rotary structure |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150415 Effective date of abandoning: 20180309 |