CN111980582A - Locking device of static bias rotary guide underground rotary structure - Google Patents
Locking device of static bias rotary guide underground rotary structure Download PDFInfo
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- CN111980582A CN111980582A CN201910427810.8A CN201910427810A CN111980582A CN 111980582 A CN111980582 A CN 111980582A CN 201910427810 A CN201910427810 A CN 201910427810A CN 111980582 A CN111980582 A CN 111980582A
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- locking
- actuator
- outer sleeve
- fluid
- piston cylinder
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- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 69
- 238000005553 drilling Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000004083 survival effect Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The invention discloses a locking device of a static bias rotary guide underground rotary structure, which comprises a locking actuating mechanism and a driving mechanism, wherein the locking actuating mechanism is arranged between a driving shaft and a non-rotary outer sleeve, so that the driving shaft and the non-rotary outer sleeve are converted into a relatively rotatable state from a locking non-relatively rotatable state or converted into a locking non-relatively rotatable state from a relatively rotatable state through the locking actuating mechanism; the locking device of the static bias rotary guide underground rotary structure can be locked by using the locking mode when the rotary guide device is out of a well and is blocked, complicated in the well or does not need to perform the guide function, so that the rotary guide can realize full rotation, and the survival capability of the rotary guide system under the complicated condition in the well is improved.
Description
Technical Field
The invention relates to the technical field of locking for downhole tools, in particular to a locking device of a static bias rotary guide downhole rotary structure.
Background
At present, for a drilling well, when the drilling well is drilled, the rotary guide device easily shows that the well meets the problem of resistance, so that the well is difficult to go out, the survival capability of the rotary guide system under the complex underground condition is greatly limited, and the use performance is influenced.
Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art by providing a locking apparatus for a statically biased rotationally guided downhole rotational structure.
Disclosure of Invention
It is an object of the present invention to provide a static biased rotary steerable downhole rotary structure lockout device to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme:
the locking device comprises a locking actuating mechanism and a driving mechanism, wherein the locking actuating mechanism is arranged between a driving shaft and a non-rotating outer sleeve, so that the driving shaft and the non-rotating outer sleeve are converted from a locking non-relatively-rotating state into a relatively-rotating state or from a relatively-rotating state into a locking non-relatively-rotating state through the locking actuating mechanism;
the locking actuating mechanism is driven by the driving mechanism so as to switch and control the state of the locking actuating mechanism.
Preferably, the driving mechanism is driven by any one or a combination of an electric control hydraulic mechanism, a mechanical pitching rod, a pressure change of drilling fluid, a flow change of drilling fluid, electromagnetic waves and cables, so that when locking is needed, an instruction is transmitted to open or close the locking executing mechanism, and the locking or unlocking is performed between the underground driving shaft and a non-rotating outer sleeve sleeved on the outer side of the driving shaft.
Further, preferably, the locking actuator is disposed on the driving shaft or the non-rotating outer sleeve, and a locking actuator in the locking actuator performs driving movement along a radial direction of the driving shaft so as to perform action through hydraulic pressure until a corresponding structural member on the non-rotating outer sleeve is jacked.
Further, preferably, the locking actuator is disposed on the driving shaft or the non-rotating outer sleeve, and a locking actuator in the locking actuator performs driving motion along the axial direction of the driving shaft so as to realize action through hydraulic pressure until a corresponding structural member on the driving shaft is jacked.
Further, preferably, the locking actuator comprises a locking actuator, a piston cylinder and a fluid channel, wherein the drive shaft or the irrotational outer sleeve is internally provided with the fluid channel along the axial direction thereof, the sleeve joint position between the drive shaft and the irrotational outer sleeve or the drive shaft is provided with the piston cylinder, the piston cylinder is internally provided with the locking actuator capable of moving in the radial direction in a sealing manner, a restoring spring is arranged between the locking actuator and the bottom of the piston cylinder, the force application direction of the restoring spring is the direction for unlocking the locking actuator, and one end of the fluid channel is communicated with the piston cylinder,
Further, preferably, the locking actuator comprises a locking actuator, a piston cylinder and a fluid channel, wherein the fluid channel is arranged in the driving shaft along the axial direction of the driving shaft, the piston cylinder is arranged on the outer side of the driving shaft, the locking actuator capable of moving axially is arranged in the piston cylinder in a sealing manner, a restoring spring is arranged between the inner end of the locking actuator and the bottom of the piston cylinder, the force application direction of the restoring spring is the direction for unlocking the locking actuator, and one end of the fluid channel is communicated with the piston cylinder.
Further, as a preferred option, a locking clamping groove is formed in the inner wall of the non-rotating outer sleeve or the inner wall of the driving shaft, the locking executing part can move along the radial direction of the non-rotating outer sleeve and can be locked or unlocked, and fluid in the fluid channel can drive the locking executing part to be locked or unlocked.
Further, as an optimization, the locking executing part can move along the axial direction of the irrotational outer sleeve and is provided with a locking clamping groove at a corresponding position which is tightly pushed, the locking clamping groove can be locked or unlocked, and fluid in the fluid channel can drive the locking executing part to lock or unlock. The piston cylinder is arranged below the energy transmission module, the energy transmission module consists of an electric energy output end and an electric energy receiving end,
Further, preferably, the drive mechanism includes an electric motor and a hydraulic pump provided on a drive shaft or a non-rotating casing, the electric motor being connected to the hydraulic pump so that the hydraulic pump supplies hydraulic pressure oil to the fluid passage.
Further, preferably, the driving mechanism comprises a motor and a worm, the motor and the worm are arranged on a driving shaft or a non-rotating outer sleeve, the worm is arranged in a matching mode with a valve rod at the end portion of the fluid channel, the worm is driven by the motor to control the valve opening and closing of the worm, and therefore the fluid driving locking executing piece is guided and cut off.
Further, preferably, the driving mechanism includes a solenoid valve disposed on the driving shaft or the non-rotating casing, and the solenoid valve can control the valve port at the end of the fluid passage to open and close so as to drive the locking actuator by the drilling fluid.
Preferably, the electromagnetic valve is composed of an electromagnet, an iron core and an iron core stop block, the electromagnetic force generated by the electromagnet can attract the iron core, the iron core is lifted up, and the valve rod is lifted up, so that drilling fluid enters the fluid channel through the communication flow channel to drive the locking device, the fluid flowing into the communication flow channel is filtered by the screen, and an annular space is arranged outside the screen for facilitating the flow of the drilling fluid.
Compared with the prior art, the invention has the beneficial effects that:
according to the locking device for the static bias rotary guide underground rotary structure, when the rotary guide device is out of a well and is blocked, the locking mode can be used for locking, so that the rotary guide device can realize full rotation, and the survival capability of a rotary guide system under the underground complex condition is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a static bias rotary steerable downhole rotary structure locking device;
FIG. 2 is a schematic diagram of one embodiment of a drive mechanism in a statically biased rotationally guided downhole rotational structure locking apparatus;
FIG. 3 is a schematic view of another embodiment of a drive mechanism in a statically biased rotationally guided downhole rotational structure locking apparatus;
FIG. 4 is a schematic structural view of one embodiment of a locking actuator of the static biased rotary steerable downhole rotary structure locking device;
Detailed Description
Referring to fig. 1 to 4, in the embodiment of the present invention, a locking device of a static bias rotation guide downhole rotation structure is provided, and the locking device of the static bias rotation guide downhole rotation structure is characterized in that the locking device includes a locking actuator and a driving mechanism, wherein the locking actuator is installed between a driving shaft and a non-rotation outer sleeve, so that the locking actuator can convert a locking non-relative rotation state between the driving shaft and the non-rotation outer sleeve into a relative rotation state or convert the relative rotation state into the locking non-relative rotation state;
The locking actuating mechanism is driven by the driving mechanism so as to switch and control the state of the locking actuating mechanism. In this embodiment, a lower driving shaft 23 is connected to a lower portion of the driving shaft 22.
The driving mechanism is driven by any one or a combination of a mechanical ball throwing mode, pressure change of drilling fluid, flow change of the drilling fluid, electromagnetic waves and cables, so that a command is transmitted to open or close the locking executing mechanism when locking is needed, and locking or unlocking is performed between the underground driving shaft and a non-rotating outer sleeve sleeved on the outer side of the driving shaft 22.
As one embodiment, the locking actuator is disposed on the driving shaft or the non-rotating outer sleeve, and a locking actuator in the locking actuator performs driving motion along the radial direction of the driving shaft so as to realize action through hydraulic pressure until a corresponding structural member on the non-rotating outer sleeve is jacked. The locking structure may be a piston that moves radially within the piston cylinder 102 under hydraulic pressure until it locks against a corresponding structure on the non-rotating outer sleeve, as shown in fig. 2, or does not rotate relative to the drive shaft within a certain torque range. The drainage tube 101 can introduce high-pressure fluid into a cavity formed by the upper end surface of the piston and the piston cylinder to assist the piston in resetting.
As another embodiment, the locking actuator is disposed on the drive shaft or on the non-rotating outer sleeve, and the locking actuator in the locking actuator is driven in an axial direction of the drive shaft to be actuated by hydraulic pressure until the corresponding structural member on the drive shaft is locked. The locking structure may be an annular piston that moves radially within the piston cylinder 102 under hydraulic pressure until it locks against a corresponding structural member on the non-rotating outer sleeve, as shown in fig. 4, or does not rotate relative to the drive shaft within a certain torque range. The piston can be fixedly connected with the locking actuating member.
Specifically, as shown in fig. 2 to 3, the locking actuator includes a locking actuator 103, a radially disposed piston cylinder, and a fluid passage 105, wherein the fluid passage 105 is disposed in the driving shaft or the irrotational outer sleeve along the axial direction thereof, the radially disposed piston cylinder is disposed in the non-rotational outer sleeve or the irrotational outer sleeve or the driving shaft at the sleeve joint position between the driving shaft and the non-rotational outer sleeve, the radially disposed locking actuator is hermetically disposed in the piston cylinder, a restoring spring is disposed between the locking actuator and the piston cylinder bottom, the urging direction of the restoring spring is the direction in which the locking actuator is unlocked, and one end of the fluid passage is communicated with the piston cylinder.
The locking device is characterized in that a radially movable locking executing part is arranged in the radially arranged piston cylinder in a sealing mode, a restoring spring 104 is arranged between the inner end of the locking executing part and the bottom of the radially arranged piston cylinder groove, one end of the fluid channel is communicated with the radially arranged piston cylinder, a locking clamping groove is formed in the inner wall of the non-rotating outer sleeve or the driving shaft, the locking executing part and the locking clamping groove can be locked or unlocked, and fluid in the fluid channel can drive the locking executing part to be locked or unlocked.
As another embodiment, as shown in fig. 4, the locking actuator includes a locking actuator, an axially disposed piston cylinder and a fluid channel, wherein the fluid channel 105 is disposed in the driving shaft or the irrotational outer sleeve along the axial direction thereof, the piston cylinder is disposed outside the driving shaft, the axially movable locking actuator is disposed in the piston cylinder in a sealing manner, a restoring spring is disposed between the inner end of the locking actuator and the bottom of the piston cylinder, the urging direction of the restoring spring is the direction for unlocking the locking actuator, the axially disposed piston cylinder is disposed on the driving shaft or the irrotational outer sleeve at the sleeving position between the driving shaft and the irrotational outer sleeve, the axially movable locking actuator 103 is disposed in the axially disposed piston cylinder in a sealing manner, and a restoring spring 104 is disposed between the inner end of the locking actuator 103 and the bottom of the axially disposed piston cylinder, one end of the fluid channel is communicated with the piston cylinder which is axially arranged, a locking clamping groove is arranged on the inner wall of the non-rotating outer sleeve or the driving shaft, the locking executing part and the locking clamping groove can be locked or unlocked, and fluid in the fluid channel can drive the locking executing part to lock or unlock. The locking actuating member and the annular piston may be integral or may be two parts fixedly connected to each other.
The locking clamping groove is formed in the inner wall of the non-rotating outer sleeve or the inner wall of the driving shaft, the locking executing part can move along the radial direction of the non-rotating outer sleeve and can be locked or withdrawn from the locking clamping groove, and fluid in the fluid channel can drive the locking executing part to be locked or withdrawn from the locking.
The locking executing part can move along the axial direction of the irrotational outer sleeve and is arranged at a corresponding position tightly propped against the locking executing part, the locking clamping groove can be locked or unlocked, and fluid in the fluid channel 105 can drive the locking executing part to lock or unlock. The piston cylinder is arranged below an energy transmission module, and the energy transmission module is composed of an electric energy output end 51 and an electric energy receiving end 52.
As an example, as shown in fig. 3, the driving mechanism includes an electric motor 118 and a hydraulic pump 117 provided on a driving shaft or a non-rotating casing, and the electric motor 118 is connected to the hydraulic pump 117 so that the hydraulic pump supplies hydraulic pressure oil to the fluid passage 105.
As another example, the driving mechanism includes a motor disposed on the driving shaft or the non-rotating outer sleeve and a worm screw disposed in cooperation with the valve stem 111 at the end of the fluid passage 105, and the worm screw is driven by the motor such that the worm screw controls the opening and closing of the valve port to guide and shut off the fluid-driven latch actuator.
As shown in fig. 2, the driving mechanism includes a solenoid valve 115 disposed on the driving shaft or the non-rotating casing, and the solenoid valve 115 can control the valve port at the end of the fluid passage to open and close so as to drive the locking actuator by the drilling fluid.
As shown in fig. 2, the solenoid valve is composed of an electromagnet 115, a core 113, and a core stopper 112, and the electromagnetic force generated by the electromagnet attracts the core 113, overcomes the thrust of a return spring 114, and lifts the core and a valve rod 111 fixedly connected to the core, so that the drilling fluid enters a fluid passage through a communication flow passage 121 to drive the locking device. The fluid flowing into the communication flow path 121 is filtered by the screen 123 or 122, and an annular space 124 is provided outside the screen to facilitate the flow of the drilling fluid.
In a preferred embodiment, the drive shaft is a drill string having a rotationally steerable drive shaft assembly.
According to the locking device for the static bias rotary guide underground rotary structure, when the rotary guide device is out of a well and is blocked, the locking mode can be used for locking, so that the rotary guide device can realize full rotation, and the survival capability of a rotary guide system under the underground complex condition is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (12)
1. The locking device of the static bias rotary guide downhole rotary structure is characterized in that the static bias rotary guide at least comprises a non-rotating outer sleeve and a driving shaft passing through the middle of the non-rotating outer sleeve, the driving shaft and a drill bit keep the same rotating speed, and the non-rotating bias unit and the ground keep relatively static;
the locking device further comprises a locking actuating mechanism and a driving mechanism, wherein the locking actuating mechanism is installed between the driving shaft and the non-rotating outer sleeve, so that the locking actuating mechanism enables the driving shaft and the non-rotating outer sleeve to be converted into a relatively rotatable state from a locking non-relatively rotatable state or converted into a locking non-relatively rotatable state from a relatively rotatable state;
the locking actuating mechanism is driven by the driving mechanism so as to switch and control the state of the locking actuating mechanism.
2. The locking device of claim 1, wherein the driving mechanism is driven by any one or a combination of an electrically controlled hydraulic mechanism, a mechanical ball, a mechanical rod, a pressure change of drilling fluid, a flow change of drilling fluid, electromagnetic waves, and cables, so as to transmit a command to open or close the locking actuator when locking is required, so as to lock or unlock the driving shaft and the non-rotating outer sleeve sleeved outside the driving shaft.
3. The statically biased rotationally guided downhole rotational structure locking apparatus of claim 1, wherein the locking actuator is disposed on the drive shaft or the non-rotating outer sleeve, and wherein the locking actuator of the locking actuator is drivingly moved in a radial direction of the drive shaft to be hydraulically actuated until a corresponding structural member on the non-rotating outer sleeve is locked.
4. The statically biased rotationally guided downhole rotational structure locking apparatus of claim 1, wherein the locking actuator is disposed on the drive shaft or the non-rotating outer sleeve, and wherein the locking actuator of the locking actuator is drivingly moved in an axial direction of the drive shaft to be hydraulically actuated until a corresponding structural member on the drive shaft is locked.
5. The apparatus of claim 3, wherein the locking actuator comprises a locking actuator, a piston cylinder, and a fluid passage, wherein the fluid passage is provided in the driving shaft or the non-rotating outer casing along an axial direction thereof, the piston cylinder is provided in the non-rotating outer casing or the non-rotating outer casing at a sleeved position between the driving shaft and the non-rotating outer casing, the locking actuator is provided in the piston cylinder in a sealing manner and is radially movable, and a restoring spring is provided between the locking actuator and a bottom of the piston cylinder, a force applying direction of the restoring spring is a direction for unlocking the locking actuator, and one end of the fluid passage is communicated with the piston cylinder.
6. The statically biased rotary steerable downhole rotary structure lockout device of claim 4 wherein the lockout actuator comprises a lockout actuator, a piston cylinder and a fluid passage, wherein the drive shaft is provided with a fluid passage along its axial direction, the drive shaft is provided with a piston cylinder outside, the piston cylinder is sealingly provided with an axially moveable lockout actuator, and a return spring is provided between the inner end of the lockout actuator and the bottom of the piston cylinder, the direction of force applied by the return spring being the direction in which the lockout actuator is unlocked, and one end of the fluid passage is in communication with the piston cylinder.
7. The statically biased rotationally guided downhole rotational structure locking apparatus of claim 5, wherein the non-rotatable outer sleeve or the inner wall of the drive shaft is provided with a locking slot, the locking actuator is radially movable along the non-rotatable outer sleeve to lock or unlock the locking slot, and fluid in the fluid channel is capable of driving the locking actuator to lock or unlock the locking slot.
8. The locking device of claim 6, wherein the locking actuator is provided with a locking slot at a corresponding position that can move along the axial direction of the irrotational outer sleeve and is pressed against the locking actuator, the locking slot can be locked or unlocked, fluid in the fluid channel can drive the locking actuator to lock or unlock, the piston cylinder is arranged below the energy transmission module, and the energy transmission module is composed of an electric energy output end and an electric energy receiving end.
9. The statically biased rotationally guided downhole rotating structure locking apparatus as claimed in any one of claims 5 to 6, wherein the drive mechanism comprises an electric motor and a hydraulic pump provided on a drive shaft or a non-rotating outer sleeve, the electric motor being connected to the hydraulic pump such that the hydraulic pump provides hydraulic pressure oil to the fluid passage.
10. The statically biased rotationally guided downhole rotary structure latch according to any one of claims 5 to 6, wherein the drive mechanism comprises a motor and a worm disposed on either the drive shaft or the non-rotating housing, the worm disposed in cooperation with the valve stem at the end of the fluid passageway, the worm being driven by the motor such that the worm controls the on-off valve port to direct and shut off the fluid driven latch actuator.
11. The statically biased rotationally guided downhole rotary structure locking apparatus of any one of claims 5 to 6, wherein the drive mechanism comprises a solenoid valve disposed on the drive shaft or non-rotating outer sleeve, the solenoid valve being capable of controlling the opening and closing of a valve port at the end of the fluid passage to drive the locking actuator by drilling fluid.
12. The apparatus of claim 11, wherein the solenoid valve comprises an electromagnet, a plunger, and a plunger stop, wherein the electromagnet generates an electromagnetic force that attracts the plunger to lift the plunger and lift the valve stem, such that the drilling fluid enters the fluid channel through the communication channel to drive the locking apparatus, wherein the fluid flowing into the communication channel is filtered by the screen, and wherein an annular space is provided outside the screen to facilitate the flow of the drilling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910427810.8A CN111980582A (en) | 2019-05-21 | 2019-05-21 | Locking device of static bias rotary guide underground rotary structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910427810.8A CN111980582A (en) | 2019-05-21 | 2019-05-21 | Locking device of static bias rotary guide underground rotary structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111980582A true CN111980582A (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910427810.8A Pending CN111980582A (en) | 2019-05-21 | 2019-05-21 | Locking device of static bias rotary guide underground rotary structure |
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| Country | Link |
|---|---|
| CN (1) | CN111980582A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048621A (en) * | 1990-08-10 | 1991-09-17 | Masx Energy Services Group, Inc. | Adjustable bent housing for controlled directional drilling |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN204266921U (en) * | 2014-09-29 | 2015-04-15 | 中国石油化工集团公司 | Static pushing type rotary guiding device |
-
2019
- 2019-05-21 CN CN201910427810.8A patent/CN111980582A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048621A (en) * | 1990-08-10 | 1991-09-17 | Masx Energy Services Group, Inc. | Adjustable bent housing for controlled directional drilling |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN204266921U (en) * | 2014-09-29 | 2015-04-15 | 中国石油化工集团公司 | Static pushing type rotary guiding device |
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Application publication date: 20201124 |
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