CN210127820U - A torsion percussion device for deep oil gas development - Google Patents
A torsion percussion device for deep oil gas development Download PDFInfo
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- CN210127820U CN210127820U CN201920445978.7U CN201920445978U CN210127820U CN 210127820 U CN210127820 U CN 210127820U CN 201920445978 U CN201920445978 U CN 201920445978U CN 210127820 U CN210127820 U CN 210127820U
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- 238000009527 percussion Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 210000004907 gland Anatomy 0.000 claims description 28
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 7
- 229930195733 hydrocarbon Natural products 0.000 claims 7
- 150000002430 hydrocarbons Chemical class 0.000 claims 7
- 238000005553 drilling Methods 0.000 abstract description 37
- 239000012530 fluid Substances 0.000 abstract description 32
- 239000003292 glue Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model relates to a torsion percussion device for deep oil gas development belongs to oil drilling engineering downhole equipment technical field. The impact device comprises a shell, an impact barrel, an impact piece and a shunt, wherein the impact barrel is movably arranged in the shell through a positioning ring, the shunt is fixedly arranged at the top end of the impact barrel in the shell, and the impact piece is movably arranged in the impact barrel below the shunt through a flow distribution disc and a deep groove ball bearing. This a torsion percussion device for deep oil gas development has and utilizes the poor rotation that produces of hydraulic pressure, make the drill bit produce the characteristics that circumference is strikeed, shunt into non-step-down liquid stream and low pressure liquid stream with drilling fluid through the shunt, the impact piece utilizes the poor rotation that produces of hydraulic pressure, strike the impact barrel, the direction of the constantly changing high pressure liquid stream of switching-over valve under inertia simultaneously, make the impact barrel drive the drill bit and produce circumference and strike, the drill string that has solved current downhole tool exists glues the cunning, the problem of structure complicacy and poor reliability, the needs of oil drilling engineering have been satisfied.
Description
Technical Field
The utility model relates to a torsion percussion device for deep oil gas development belongs to oil drilling engineering downhole equipment technical field.
Background
In the process of oil and gas exploitation, oil and gas drilling has to develop oil and gas to a deep layer because oil and gas resources in a shallow layer are gradually exhausted. In the drilling process of deep wells and ultra-deep wells, the drill bit needs to perform drilling operation in a hard stratum, and the drill bit is easy to have the problems of stick-slip of a drill column, rapid abrasion of the drill bit, breakage, falling and the like, so that a great amount of economic loss is brought to the drilling operation.
Aiming at the problem of stick-slip of a drill string, the prior art generally adopts a turbine type torque impactor to solve the problem, but the turbine type impactor has more turbine stages and internal parts, is difficult to assemble and has higher assembly precision requirement; in addition, the downhole working conditions are complex and harsh, the existing turbine type tool is easy to fail, and the reliability is not strong, so that a downhole tool is needed to solve the defects.
Disclosure of Invention
The utility model aims to provide a: the torsion impact device for deep oil gas development utilizes hydraulic pressure difference to generate rotation, enables a drill bit to generate circumferential impact, and solves the problems of stick-slip of a drill column, complex structure and poor reliability existing in the existing underground tool.
The technical scheme of the utility model is that:
the utility model provides a torsion percussion device for deep oil gas development, it comprises casing, impact a section of thick bamboo, impact piece and shunt, its characterized in that: an impact barrel is movably arranged in the shell through a positioning ring, a flow divider is fixedly arranged at the top end of the impact barrel in the shell, and an impact piece is movably arranged in the impact barrel below the flow divider through a flow distribution disc and a deep groove ball bearing.
The shell is in a reducing cylinder shape, and a central hole of the shell is a reducing hole.
The impact cylinder is cylindrical; one end of the impact cylinder extends to the outer end of the shell, splines are uniformly distributed on the outer circumference of the impact cylinder extending to the outer end of the shell, and key grooves are uniformly distributed on the circumference of the shell corresponding to the splines; the impact barrel is clamped with the key groove through the matching of the spline.
The circumference of the impact cylinder above the spline is provided with a positioning groove, a positioning ring is movably arranged in the positioning groove, a positioning bolt is arranged on the shell corresponding to the positioning ring, and the bolt is fixedly connected with the positioning ring.
The circumference of the impact cylinder above the positioning groove is symmetrically provided with lower splitter boxes, the lower splitter boxes are provided with outer liquid inlet holes, the outer liquid inlet holes are communicated with a central hole of the impact cylinder, and the inner wall of the central hole is provided with impact grooves corresponding to the outer liquid inlet holes.
The flow divider is composed of a flow dividing sieve tube, a throttling nozzle and a gland, the bottom end of the gland is in interference connection with the end opening of the impact barrel, the throttling nozzle is clamped in a center hole of the gland, and the flow dividing sieve tube is installed in the inner thread of the end opening of the gland above the throttling nozzle.
And a plurality of shunting holes are uniformly distributed on the circumference of the shunting sieve tube.
The throttling nozzle is in a reducing cylinder shape, and a central hole of the throttling nozzle is a horn hole.
The gland be toper round platform form, gland central point is provided with the through-hole, corresponds the form with lower splitter box on the gland circumference and is provided with the splitter box, goes up the splitter box and communicates with lower splitter box.
The valve plate is annular, and a plurality of positioning flanges are uniformly distributed on the circumference of the valve plate. A plurality of discharge holes are uniformly distributed on the valve plate between the positioning flange and the central hole.
The impact piece consists of an impact hammer and a reversing valve, and the reversing valve is movably arranged in the impact hammer.
The jump bit be the tube-shape, the last symmetry form of jump bit is provided with interior feed liquor hole, is provided with left limit flange on the jump bit of interior feed liquor hole one side, is provided with right limit flange on the jump bit of interior feed liquor hole opposite side, the left limit flange outside is provided with a left side and divides the liquid logical groove, the right limit flange outside is provided with the right side and divides the liquid logical groove, a left side divides the liquid logical groove and the right side to divide the liquid logical groove respectively with the centre bore intercommunication of jump bit, the symmetry form is provided with the spacing key on the centre bore inner wall of.
The reversing valve is in a reducing cylinder shape, the reversing valve is symmetrically provided with guide grooves on the large-diameter circumference, the reversing valves on the two sides of the guide grooves are symmetrically provided with a left low-pressure liquid flow groove and a right low-pressure liquid flow groove, the reversing valve on one side of the right low-pressure liquid flow groove is provided with a limiting key groove, the left low-pressure liquid flow groove and the right low-pressure liquid flow groove are respectively provided with a flow passage, and the flow passages are communicated with a central hole of the reversing valve.
The utility model has the advantages that:
this a torsion percussion device for deep oil gas development has and utilizes the poor rotation that produces of hydraulic pressure, make the drill bit produce the characteristics that circumference is strikeed, shunt into non-step-down liquid stream and low pressure liquid stream with drilling fluid through the shunt, the impact piece utilizes the poor rotation that produces of hydraulic pressure, strike the impact barrel, the direction of the constantly changing high pressure liquid stream of switching-over valve under inertia simultaneously, make the impact barrel drive the drill bit and produce circumference and strike, the drill string that has solved current downhole tool exists glues the cunning, the problem of structure complicacy and poor reliability, the needs of oil drilling engineering have been satisfied.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of the impact barrel of the present invention;
fig. 3 is a schematic sectional view taken along the direction a-a in fig. 1 according to the present invention;
fig. 4 is a schematic perspective view of the gland of the present invention;
FIG. 5 is a schematic perspective view of the flow-dividing sieve tube of the present invention;
fig. 6 is a schematic perspective view of the port plate of the present invention;
fig. 7 is a schematic sectional view taken along the direction B-B in fig. 1 according to the present invention;
fig. 8 is a schematic perspective view of the impact hammer of the present invention;
fig. 9 is a schematic perspective view of the reversing valve of the present invention;
fig. 10 is a schematic cross-sectional view of the present invention in an initial state in the direction of C-C in fig. 1;
fig. 11 is a schematic cross-sectional view of the present invention in a counterclockwise rotation in the direction of C-C in fig. 1;
fig. 12 is a schematic cross-sectional view of the inertial commutation in the direction C-C of fig. 1 according to the present invention;
fig. 13 is a schematic cross-sectional view of the present invention taken clockwise in the direction of C-C in fig. 1.
In the figure: 1. the device comprises a shell, 2, an impact barrel, 3, a positioning ring, 4, a positioning groove, 5, a lower diversion trench, 6, an outer liquid inlet hole, 7, an impact groove, 8, a diversion screen pipe, 9, a throttling nozzle, 10, a gland, 11, an upper diversion trench, 12, a diversion hole, 13, a drainage hole, 14, a positioning flange, 15, an impact hammer, 16, a reversing valve, 17, an inner liquid inlet hole, 18, a left limiting flange, 19, a right limiting flange, 20, a left liquid separating through groove, 21, a right liquid separating through groove, 22, a limiting key, 23, a diversion trench, 24, a left low-pressure liquid flow groove, 25, a right low-pressure liquid flow groove, 26, a limiting key groove, 27, a flow channel, 28 and a flow distribution disc.
Detailed Description
The torsion impact device for deep oil gas development comprises a shell 1, an impact cylinder 2, an impact piece and a flow divider, wherein the shell 1 is in a reducing cylinder shape, and the top end of the shell is arranged in a conical shape so as to be connected with a drill collar to provide power for the device; the central hole of the shell 1 is a reducing hole, and the hole diameter of the top end of the shell is reduced so that the connecting conduit can provide drilling fluid for the device. A positioning ring 3 is fixedly arranged in the shell 1 through a plurality of bolts, an impact cylinder 2 is movably arranged in the shell 1 through the positioning ring 3, and the impact cylinder 2 is cylindrical; one end of the impact cylinder 2 extends to the outer end of the shell 1, splines are uniformly distributed on the outer circumference of the impact cylinder 2 extending to the outer end of the shell 1, and key grooves are uniformly distributed on the circumference of the shell 1 corresponding to the splines; the impact barrel 2 is clamped with the key groove through the matching of the spline, the joint of the spline and the key groove is not completely attached, and the existing spline clearance allows the impact barrel 2 to generate small circumferential rotation;
a positioning groove 4 is formed in the circumference of the impact barrel 2 above the spline, and the positioning groove 4 is used for being matched with the positioning ring 3 to axially fix the impact barrel 2 but not block the rotation of the impact barrel 2; a positioning ring 3 is movably arranged in the positioning groove 4, a positioning bolt is arranged on the shell 1 corresponding to the positioning ring 3, and the positioning bolt is fixedly connected with the positioning ring 3. The circumference of the impact cylinder 2 above the positioning groove 4 is symmetrically provided with lower splitter boxes 5, the lower splitter boxes 5 are provided with outer liquid inlet holes 6, the outer liquid inlet holes 6 are communicated with a central hole of the impact cylinder 2, the outer liquid inlet holes 6 are used for being matched with the lower splitter boxes 5 to guide drilling fluid above the impact cylinder 2 to enter the central hole of the impact cylinder 2, and the inner wall of the central hole is provided with impact grooves 7 corresponding to the outer liquid inlet holes 6.
The top end port of an impact barrel 2 in a shell 1 is fixedly provided with a flow divider, the flow divider is composed of a flow dividing sieve tube 8, a throttling nozzle 9 and a gland 10, the gland 10 is in a conical circular truncated cone shape, the gland 10 is movably connected with the shell 1, an upper flow dividing groove 11 is arranged at the joint of the gland 10 and the shell 1 and corresponds to a lower flow dividing groove 5, the upper flow dividing groove 11 is communicated with the lower flow dividing groove 5, the upper flow dividing groove 11 is used for matching with the lower flow dividing groove 5 to guide drilling fluid above to downwards enter the impact barrel 2, the bottom end of the gland 10 is in interference connection with the port of the impact barrel 2, so that the gland 10 and the impact barrel 2 synchronously rotate when the device works, and the upper flow dividing groove 11 and the lower;
a through hole is formed in the center of the gland 10, the throttling nozzle 9 is clamped in the center hole of the gland 10, the throttling nozzle 9 is in a reducing cylinder shape, the center hole of the throttling nozzle 9 is a horn-shaped hole which is wide at the top and narrow at the bottom, and the throttling nozzle 9 is used for reducing the pressure of the drilling fluid by utilizing the center hole; a shunting sieve pipe 8 is installed at an internal thread of a port of a gland 10 above a throttling nozzle 9, the shunting sieve pipe 8 is tightly connected with a shell 1 through a sealing ring, a plurality of shunting holes 12 are uniformly distributed on the circumference of the shunting sieve pipe 8, the shunting holes 12 are communicated with a central hole of the shunting sieve pipe 8, the shunting sieve pipe 8 is used for shunting drilling fluid entering the device, so that one part of the drilling fluid enters an upper shunting groove 11 along the upper side of the gland 10 after passing through the shunting holes 12, and the other part of the drilling fluid downwards enters the throttling nozzle 9;
an impact piece is movably arranged in the impact barrel 2 below the flow divider through a flow distribution plate 28 and a deep groove ball bearing, the flow distribution plate 28 is annular, a plurality of positioning flanges 14 are uniformly distributed on the circumference of the flow distribution plate 28, a plurality of discharge holes 13 are uniformly distributed on the flow distribution plate between the positioning flanges 14 and a central hole, and the discharge holes 13 are used for discharging drilling fluid downwards out of the device; the impact piece is composed of an impact hammer 15 and a reversing valve 16, the impact hammer 15 is cylindrical, an inner liquid inlet hole 17 is symmetrically arranged on the impact hammer 15, a left limiting flange 18 is arranged on the impact hammer 15 on one side of the inner liquid inlet hole 17, a right limiting flange 19 is arranged on the impact hammer 15 on the other side of the inner liquid inlet hole 17, the left limiting flange 18 and the right limiting flange 19 are clamped in the impact groove 7, and the impact hammer 15 drives the impact cylinder 2 to rotate through the left limiting flange 18 and the right limiting flange 19; a left liquid separating through groove 20 is formed in the outer side of the left limiting flange 18, a right liquid separating through groove 21 is formed in the outer side of the right limiting flange 19, the left liquid separating through groove 20 and the right liquid separating through groove 21 are communicated with a central hole of the impact hammer 15 respectively, and limiting keys 22 are symmetrically arranged on the inner wall of the central hole of the impact hammer 15.
The reversing valve 16 is movably mounted in the impact hammer 15, the reversing valve 16 is movably connected with the gland 10 through a deep groove ball bearing to reduce rotation resistance, the reversing valve 16 is in a reducing cylinder shape, guide grooves 23 are symmetrically formed in the large-diameter circumference of the reversing valve 16, a left low-pressure liquid flow groove 24 and a right low-pressure liquid flow groove 25 are symmetrically formed in the reversing valve 16 on two sides of each guide groove 23, a limit key groove 26 is formed in the reversing valve 16 on one side of the right low-pressure liquid flow groove 25, the limit key groove 26 is used for being matched with the limit key 22 to enable the reversing valve 16 to rotate only within a certain range, a flow passage 27 is respectively formed in each of the left low-pressure liquid flow groove 24 and the right low-pressure liquid flow groove 25, the flow passage 27 is in a grid.
The working process of the torsion impact device is as follows: fixedly connecting a drill collar with the shell 1, and fixedly connecting an impact cylinder 2 with a drill bit; in the drilling process of the drill bit, the drill holder drives the shell 1 to rotate, and the shell 1 drives the impact barrel 2 to rotate so as to drive the drill bit to work;
when the drill bit drills in a rotating mode, high-pressure drilling fluid enters the shell 1, the drilling fluid entering the shell 1 firstly enters the shunt sieve tube 8, and the drilling fluid is divided into two routes under the action of the shunt sieve tube 8: one part of the drilling fluid enters a cavity between the gland 10 and the shell 1 through the diversion hole 12 and continuously downwards enters the lower diversion groove 5 through the upper diversion groove 11, the drilling fluid entering the lower diversion groove 5 enters a central hole of the impact cylinder 2 through the outer fluid inlet hole 6, the other part of the drilling fluid downwards enters the throttling nozzle 9, the flow rate of the drilling fluid of the part is increased under the action of the throttling nozzle 9, the hydraulic pressure is reduced, and the part of the drilling fluid after pressure reduction continuously downwards enters the reversing valve 16;
the low pressure drilling fluid that gets into in the switching-over valve 16 passes through runner 27 and gets into left low pressure fluid chute 24 and right low pressure fluid chute 25, then divides liquid logical groove 20 or right branch to lead to 21 entering impact groove 7 through a left side, the low pressure drilling fluid that gets into in impact groove 7 and the drilling fluid combined action that does not step down that gets into through outer feed liquor hole 6 and strike a 2 centre holes, make the impact piece produce rotatoryly under the effect of hydraulic pressure difference, and drive and strike a 2 production periodic circumference of production and strike, specifically do: the impact slot 7 is divided into three chambers, left, middle and right, by a left stop flange 18 and a right stop flange 19. In an initial state, drilling fluid which enters the impact barrel 2 and is not depressurized is positioned in the middle cavity, and the drilling fluid enters the diversion trench 23 along the inner liquid inlet hole 17 and then enters the right cavity of the impact trench 7 through the right liquid separation through trench 21; meanwhile, low-pressure drilling fluid enters a left low-pressure fluid flow groove 24 through a flow passage 27 and then enters a left cavity of the impact groove 7 through the left liquid dividing through groove 20, the impact hammer 15 rotates anticlockwise under the action of hydraulic pressure difference, the impact hammer 15 rotates to a limit position to impact the impact barrel 2 and drive the impact barrel 2 to rotate synchronously, and due to the fact that a gap exists between the shell 1 and the impact barrel 2, the impact barrel 2 rotates along with the shell 1 and simultaneously generates small-amplitude anticlockwise rotation under the action of the left limit flange 18;
when the impact hammer 15 rotates to the limit position and stops, the reversing valve 16 continues to rotate anticlockwise under the action of inertia until the limit key groove 26 is blocked by the limit key 22, so that the reversing valve 16 stops rotating to realize the reversing function, and at the moment, the diversion groove 23 is communicated with the left liquid separating through groove 20. The drilling fluid which is not depressurized enters a diversion trench 23 along an inner liquid inlet hole 17, then enters a left cavity of an impact trench 7 through a left liquid separating through trench 20, meanwhile, the low-pressure drilling fluid enters a right low-pressure fluid flow trench 25 through a flow channel 27, then enters a right cavity of the impact trench 7 through a right liquid separating through trench 21, an impact hammer 15 rotates clockwise under the action of hydraulic pressure difference, when the impact hammer 15 rotates to a limit position, impact is generated on an impact cylinder 2, the impact cylinder 2 is driven to rotate synchronously, and the impact cylinder 2 rotates clockwise in a small range while rotating along with a shell 1; subsequently, the reversing valve 16 continues to rotate clockwise by inertia, returning the impact member to the initial state. The drilling fluid in the percussion channel 7 will, after the percussion operation has been completed, be discharged from the apparatus through the discharge openings 13 in the port plate 28.
Therefore, when the impact barrel 2 drills along with the rotation of the shell 1, the impact piece rotates by utilizing hydraulic pressure difference to impact the impact barrel 2, and meanwhile, the reversing valve 16 continuously changes the direction of liquid flow under inertia, so that the impact barrel 2 drives the drill bit to generate periodic circumferential impact, the problems of stick-slip of a drill column, complex structure and poor reliability existing in the conventional downhole tool are solved, and the requirements of petroleum drilling engineering are met.
Claims (8)
1. The utility model provides a torsion percussion device for deep oil gas development, it comprises casing (1), impact a section of thick bamboo (2), impact piece and shunt, its characterized in that: an impact barrel (2) is movably mounted in the shell (1) through a positioning ring (3), a shunt is fixedly mounted at the end opening of the top end of the impact barrel (2) in the shell (1), and an impact piece is movably mounted in the impact barrel (2) below the shunt through a flow distribution disc (28) and a deep groove ball bearing; the impact cylinder (2) is cylindrical; one end of the impact cylinder (2) extends to the outer end of the shell (1), splines are uniformly distributed on the outer circumference of the impact cylinder (2) extending to the outer end of the shell (1), and key grooves are uniformly distributed on the circumference of the shell (1) corresponding to the splines; the impact barrel (2) is mutually clamped and connected through the matching of the spline and the key groove; a positioning groove (4) is formed in the circumference of the impact cylinder (2) above the spline, a positioning ring (3) is movably mounted in the positioning groove (4), a positioning bolt is arranged on the shell (1) corresponding to the positioning ring (3), and the bolt is fixedly connected with the positioning ring (3); the circumference of the impact barrel (2) above the positioning groove (4) is symmetrically provided with lower shunting grooves (5), the lower shunting grooves (5) are provided with outer liquid inlet holes (6), the outer liquid inlet holes (6) are communicated with a central hole of the impact barrel (2), and the inner wall of the central hole is provided with impact grooves (7) corresponding to the outer liquid inlet holes (6); the flow divider is composed of a flow dividing sieve tube (8), a throttling nozzle (9) and a gland (10), the bottom end of the gland (10) is in interference connection with the port of the impact barrel (2), the throttling nozzle (9) is clamped in a center hole of the gland (10), and the flow dividing sieve tube (8) is installed in the internal thread of the port of the gland (10) above the throttling nozzle (9).
2. The torsional impact device for deep hydrocarbon exploration according to claim 1, wherein: a plurality of shunting holes (12) are uniformly distributed on the circumference of the shunting sieve tube (8).
3. The torsional impact device for deep hydrocarbon exploration according to claim 1, wherein: the throttling nozzle (9) is in a reducing cylinder shape, and a center hole of the throttling nozzle (9) is a horn hole.
4. The torsional impact device for deep hydrocarbon exploration according to claim 1, wherein: gland (10) be toper round platform form, gland (10) central point is provided with the through-hole, corresponds the form with lower splitter box (5) on gland (10) circumference and is provided with splitter box (11), goes up splitter box (11) and splitter box (5) intercommunication down.
5. The torsional impact device for deep hydrocarbon exploration according to claim 1, wherein: the valve plate (28) is annular, and a plurality of positioning flanges (14) are uniformly distributed on the circumference of the valve plate (28); a plurality of discharge holes (13) are uniformly distributed on the valve plate (28) between the positioning flange (14) and the central hole.
6. The torsional impact device for deep hydrocarbon exploration according to claim 1, wherein: the impact piece is composed of an impact hammer (15) and a reversing valve (16), and the reversing valve (16) is movably arranged in the impact hammer (15).
7. The torsional impact device for deep hydrocarbon exploration according to claim 6, wherein: impact hammer (15) be the tube-shape, the symmetry form is provided with interior feed liquor hole (17) on impact hammer (15), be provided with left limit flange (18) on impact hammer (15) of interior feed liquor hole (17) one side, be provided with right limit flange (19) on impact hammer (15) of interior feed liquor hole (17) opposite side, left limit flange (18) outside is provided with left branch liquid logical groove (20), right limit flange (19) outside is provided with right branch liquid logical groove (21), left branch liquid logical groove (20) and right branch liquid logical groove (21) communicate with the centre bore of impact hammer (15) respectively, the symmetry form is provided with spacing key (22) on the centre bore inner wall of impact hammer (15).
8. The torsional impact device for deep hydrocarbon exploration according to claim 6, wherein: reversing valve (16) be the reducing tube-shape, the symmetry form is provided with guiding gutter (23) on the big footpath circumference of reversing valve (16), the symmetry form is provided with left low pressure liquid chute (24) and right low pressure liquid chute (25) on reversing valve (16) of guiding gutter (23) both sides, be provided with spacing keyway (26) on reversing valve (16) of right low pressure liquid chute (25) one side, be provided with runner (27) on left low pressure liquid chute (24) and right low pressure liquid chute (25) respectively, runner (27) and the centre bore intercommunication of reversing valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920445978.7U CN210127820U (en) | 2019-04-03 | 2019-04-03 | A torsion percussion device for deep oil gas development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920445978.7U CN210127820U (en) | 2019-04-03 | 2019-04-03 | A torsion percussion device for deep oil gas development |
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| Publication Number | Publication Date |
|---|---|
| CN210127820U true CN210127820U (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920445978.7U Expired - Fee Related CN210127820U (en) | 2019-04-03 | 2019-04-03 | A torsion percussion device for deep oil gas development |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915013A (en) * | 2019-04-03 | 2019-06-21 | 长江大学 | A kind of torsion impact device for Deep Oil And Gas Exploration exploitation |
| CN111720050A (en) * | 2020-06-30 | 2020-09-29 | 合力（天津）能源科技股份有限公司 | Deflector rod reversing valve torsion impactor |
-
2019
- 2019-04-03 CN CN201920445978.7U patent/CN210127820U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915013A (en) * | 2019-04-03 | 2019-06-21 | 长江大学 | A kind of torsion impact device for Deep Oil And Gas Exploration exploitation |
| CN111720050A (en) * | 2020-06-30 | 2020-09-29 | 合力（天津）能源科技股份有限公司 | Deflector rod reversing valve torsion impactor |
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Granted publication date: 20200306 |