CN114961551A - All-metal axial double-plunger rotary impact type downhole positive displacement motor - Google Patents
All-metal axial double-plunger rotary impact type downhole positive displacement motor Download PDFInfo
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- CN114961551A CN114961551A CN202210498909.9A CN202210498909A CN114961551A CN 114961551 A CN114961551 A CN 114961551A CN 202210498909 A CN202210498909 A CN 202210498909A CN 114961551 A CN114961551 A CN 114961551A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 18
- 239000011435 rock Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 1
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Classifications
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Hydraulic Motors (AREA)
Abstract
The application relates to an all-metal axial double-plunger rotary impact type downhole positive displacement motor which comprises an upper joint, an impact module, a double-plunger rotary part and an output shaft. The impact module is connected with the pressure spring through an impact valve block, and a hemisphere is oscillated by the flow distribution impact valve block to form impact force crushed rock; the flow distribution plate and the flow distribution shaft are combined to form a double flow distribution mechanism which is respectively connected with the impact module channel and the double-plunger rotating part channel and is in differential connection with the upper channel and the lower channel of the stator by 30 degrees; the double-plunger rotary component consists of an upper rotary component and a lower rotary component, any rotary component is connected with the rotor rotary wheel through a plunger stator, N balls are arranged on the rotary wheel, a thrust bearing is arranged between the upper rotor rotary wheel and the lower rotor rotary wheel, the drilling fluid of the double-distributing mechanism pushes the upper plunger stator to do axial linear motion, the bumps distributed on the surface of the rotary wheel push the rotor rotary wheel to move and rotate for a certain angle, and meanwhile, the lower plunger stator resets to a starting point through the rotary axial direction of the rotor wheel and discharges drilling fluid, so that the reciprocating stator plunger moves to push the rotor rotary wheel to rotate circularly and output torque. The high-temperature-resistant rotary impact mechanism has the characteristics of high temperature resistance, rotary impact and large torque.
Description
Technical Field
The application relates to an underground motor, in particular to an all-metal axial double-plunger rotary impact type underground positive displacement motor.
Background
At present, the underground power motor driving drilling is the inevitable choice for earth deep, ultra-deep and high-temperature stratum drilling, the underground power motor mainly comprises a screw motor and a turbine motor, the conventional screw motor cannot be used under the high-temperature condition of more than or equal to 180 ℃ underground, and the current processing level of a stator of an all-metal screw motor cannot ensure the processing precision; the turbine motor belongs to a non-volume motor, has the characteristics of high speed and low torque and is not suitable for deep drilling; the plunger structure has good sealing performance and large torque, and is more beneficial to crushing rocks in a rotary impact mode on harder strata. Therefore, the motor with the all-metal plunger structure and the rotary impact working characteristic is more beneficial to drilling deep, ultra-deep and high-temperature formations of the earth and hard rock formations.
In view of the above-mentioned drilling phenomenon, rotary impact type displacement motors are the inevitable choice for deep, ultra-deep and high-temperature deep layer of the earth and hard rock drilling.
Disclosure of Invention
In order to effectively drill in deep and ultra-deep wells, high-temperature geothermal heat, hard rock and other strata, the invention provides an all-metal axial double-plunger rotary impact type downhole positive displacement motor.
The application provides full metal axial double-plunger rotary impact type downhole volume motor specifically adopts following technical scheme:
the full-metal axial double-plunger rotary impact type downhole positive displacement motor comprises an upper joint, an impact module, a double-plunger rotary part and the like.
The impact module is connected with the pressure spring through an impact valve block and impacts hemispherical oscillation through the impact valve block;
the valve plate and the valve shaft are combined to form a double valve mechanism which is respectively connected with the impact module and the double-plunger stator channel, and the high-pressure cavity and the low-pressure cavity are intermittently opened and closed by the cooperation of the pressure spring and the impact module channel; the difference of the pressure difference is 30 degrees with the upper channel and the lower channel of the stator, so that the high pressure and the low pressure in the double-plunger cavity are alternately switched.
The double-plunger rotary component consists of an upper rotary component and a lower rotary component, and any rotary component is formed by matching a plunger stator and a rotor rotary machine wheel. The rotor rotating wheel is arranged in the rotating part, N balls are arranged on the rotating part in a rotating mode, and thrust bearings are arranged between the upper rotor rotating wheel and the lower rotor rotating wheel.
The valve plate and the valve shaft are combined to form a double valve mechanism which is respectively connected with the impact module and the double-plunger rotating part channel, and the high-pressure cavity and the low-pressure cavity intermittently open and close the oscillating hemisphere by being connected with the impact module channel and matched with the pressure spring; the difference of the pressure difference is 30 degrees with the upper channel and the lower channel of the stator, so that the high pressure and the low pressure in the double-plunger cavity are alternately switched.
The upper plunger stator lug rotates to push the rotor machine wheel to rotate and yield and rotate, the lower plunger stator distributes flow through the flow distribution shaft, the cam rotates to push the rotor machine wheel to rotate and yield and rotate, and the reciprocating plunger stator moves to push the rotor to rotate and rotate repeatedly.
Through adopting above-mentioned technical scheme, the elastic hemisphere is strikeed to the pressure impact valve piece, has effectively increased the motor and has crept into the effect, improves the motor card of bottom of the well simultaneously and bores the atress condition.
Preferably, the plunger stator is adopted to convert hydraulic power into mechanical rotary force, plunger leakage can be almost ignored, and kinetic energy conversion efficiency of the motor is improved.
Through the technical scheme, the linear motion of the plunger stator is converted to push the rotor with the balls to rotate.
Preferably, the balls are arranged on the upper portion in a rotating mode, friction force of a matching surface is reduced, and conversion efficiency is higher.
And a thrust bearing is adopted between the upper and lower rotation of the rotor, so that the axial impact force of the plunger is effectively reduced, and the circumferential motion of the motor rotor is more flexible.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the impact module is connected with the pressure spring through an impact valve block, and a hemisphere is oscillated through the flow distribution impact valve block to form impact force crushed rock, so that the effect of drilling the crushed rock by impacting the crushed rock by a motor is realized;
2. the valve plate and the valve shaft are combined to form a double valve mechanism which is respectively connected with the impact module and the double-plunger stator channel, and the high-pressure cavity and the low-pressure cavity are intermittently opened and closed by the cooperation of the pressure spring and the impact module channel; the difference of the pressure difference is 30 degrees with the upper channel and the lower channel of the stator, so that the high pressure and the low pressure in the double-plunger cavity are alternately switched.
3. The axial linear motion of the plunger stator is converted into the rotary motion of the rotor, the piston belongs to the positive displacement type and has good sealing performance, the kinetic energy loss of the motor caused by leakage is reduced, and the output efficiency of the motor is improved;
drawings
FIG. 1 is a schematic diagram of the overall structure of an all-metal axial double-plunger rotary impact type downhole positive displacement motor in the embodiment of the application;
FIG. 2 is a schematic view of a split structure of a casing of an all-metal axial double-plunger rotary impact type downhole positive displacement motor;
FIG. 3 is a schematic cross-sectional internal structure diagram of a housing and a stator of the all-metal axial double-plunger rotary impact type downhole positive displacement motor;
FIG. 4 is a schematic view showing the structure of the upper end of the impact;
FIG. 5 is an oblique view showing an impact structure;
FIG. 6 is a schematic view showing the construction of the impingement bottom;
FIG. 7 is a schematic view of an end cap embodying a motor water inlet;
FIG. 8 is a schematic view of a motor port shaft structure;
FIG. 9 is a schematic view showing a motor rotation structure and assembly;
FIG. 10 is a schematic view showing the construction of a plunger stator;
FIG. 11 is a schematic view of a stator stationary housing construction;
FIG. 12 is a schematic view of a motor port plate configuration;
FIG. 13 is a schematic view of a motor rotor with thrust bearings;
FIG. 14 is a schematic view of the bottom water outlet member of the motor;
FIG. 15 is a schematic view of the motor housing configuration with porting;
FIG. 16 is a schematic view of the motor spline shaft structure
Description of reference numerals:
1. an upper joint; 2. an impact module; 201. an impact valve block; 202. a pressure spring; 203. a semicircular through hole; 204. a water inlet hole; 205. a high pressure channel; 206. a bearing; 207. impacting the inclined hole; 208. a steel ball; 209. a hemisphere; 210. a tension spring; 211. bolt holes; 212. impacting the lower base; 213. an upper end cover; 214. a valve shaft; 215. an upper orifice; 216. a lower orifice; 217. an impact water hole; 3. a double-plunger rotary member; 301. the stator limiting block; 302. the rotor is arranged on the rotary machine wheel; 303. a flow distribution water inlet; 304. a thrust bearing; 305. a valve plate; 306. a water outlet tray; 307. sealing the lower part; 308. a ball bearing; 309. a rotor water inlet; 310. a rotor water outlet; 311. an octagonal shaft; 312. a stator outer cylinder; 313. the rotor rotates under the airplane wheel; 314. the plunger stator; 315. a plunger stator; 316. a plunger seal ring; 317. a stator projection; 318. a stator water hole; 319. a stator limiting block is arranged below the stator; 320. a port plate water gap; 321. a water outlet hole; 322. a water hole of the outer cylinder body; 4. a spline shaft.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The application discloses full metal axial double-plunger rotary impact type downhole positive displacement motor. Referring to fig. 2 and 3, the all-metal axial double-plunger rotary impact type downhole positive displacement motor comprises an upper connector 1, an impact module 2, an impact base 212, an impact hemisphere 209, a plunger stator 314 and a rotor rotary wheel 302, wherein in the application, a water inlet 204 and an impact valve block 201 are defined to be connected with an impact pressure spring 202 and a semicircular through hole 203 component; the flow distribution water inlet 303 is connected with the flow distribution shaft 214 for flow distribution, and the stator bump 317, the plunger stator 314 and the rotor rotating wheel 302 are matched into an upper rotating component; the rotor rotating wheel lower 313, the plunger stator lower 315, the port plate 305 and the water outlet plate 306 and the lower seal 307 are connected and matched into a lower rotating component.
Referring to fig. 3 and 4, the impact valve block 201 is connected with the pressure spring 202, when the impact valve block 201 is pressed downwards by hydraulic pressure to impact the hemisphere 209, the channel accommodating cavity of the water inlet 204 is communicated with the impact water hole 217, when the hydraulic pressure is reduced, the pressure spring 202 bounces the impact valve block 201, the channel of the impact water hole 217 is closed, the pressure of the cavity accommodating cavity of the water inlet 204 is increased again, the impact hemisphere 209 is pressed downwards by the impact valve block 201, the periphery of the impact hemisphere 209 is connected by the tension spring 210, and after being impacted, the impact hemisphere 209 oscillates up and down due to inertia and the elasticity of the tension spring 210, so that the motor is formed to impact broken rocks.
Referring to fig. 5 and 6, the impact valve block 201 is connected with a steel ball 208, axial displacement is generated by hydraulic pressure, the impact inclined hole 207 is connected with a low-pressure channel to form a pressure relief channel, and the high-pressure channel 205 is connected with a water inlet 204.
Referring to fig. 7 and 8, the upper end cap 213 is connected to the port shaft 214, and the port shaft 214 is assembled with the port plate 305, so that when the plunger cavity on the plunger stator 314 is filled with high-pressure drilling fluid, the cavity formed by the water outlet plate 306 and the plunger stator lower 315 is connected to the low-pressure channel. When the plunger stator goes up 314 axial motion, the plunger is pushed to rotate and the rotor rotates to give way and rotate, the plunger stator lower 315 moves to the highest rotation point, then the valve plate 305 distributes flow, high-pressure drilling fluid enters, the plunger stator lower 315 is pushed to move axially, and the reciprocating motion of the plunger pushes the rotor to give way and rotate continuously.
Referring to fig. 9 and 10, N stator protrusions 317 are formed at the end of the plunger stator 314, and a stator stopper 319 is inserted between the plunger stator 314 to circumferentially limit the plunger stator 314.
Referring to fig. 11, 12 and 13, the upper distributing hole 215 is defined to be matched with the rotor water inlet 309 to form a channel which is opened by rotating a certain angle and closed by rotating the certain angle, and then the drilling fluid is discharged through the distributing plate water inlet 320.
Referring to fig. 13, 14, 15 and 16, it is defined that the rotor water outlet 310 is connected with the water outlet hole 321, the water outlet hole 321 is connected with the outer cylinder water hole 322, the octagonal shaft 311 is connected with the spline shaft 4, and torque is output.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The all-metal axial double-plunger rotary impact type downhole positive displacement motor is characterized by comprising an upper joint (1), an impact module (2), a double-plunger rotary part (3) and an output shaft (4). The impact module (2) is connected with a pressure spring (202) through an impact valve block (201), and a hemisphere (209) is oscillated through the flow distribution impact valve block (201) to form impact force rock fragments; the valve plate (305) and the valve shaft (214) are combined into a double valve mechanism which is respectively connected with the impact module (2) and the double-plunger rotating part (3) through channels; the double-plunger rotary component (3) consists of an upper rotary component and a lower rotary component, any rotary component is connected with a plunger stator (314) and a rotor rotary wheel (302), the rotor rotary wheel (302) is used for processing N upper rotary wheels and lower rotary wheels, a thrust bearing (304) is arranged between the upper rotary wheel (302) and the lower rotary wheel (313), high-pressure drilling fluid pushes the upper plunger stator (314) to do axial linear motion through a flow distribution mechanism, stator bumps (317) distributed on the surface of the upper rotary wheel push the rotor rotary wheel (302) to move by a certain angle of abdication and rotation, meanwhile, the lower plunger stator (315) is axially reset to a starting point through the rotor wheel rotation (302) and discharges feed liquid drilling, and therefore the reciprocating plunger stator (315) moves to push the rotor rotary wheel (302) to rotate circularly and output torque.
2. The all-metal axial dual-plunger rotary impact downhole positive displacement motor of claim 1, wherein: impact valve piece (201) pushes down impact hemisphere (209) when hydraulic pressure, inlet opening (204) passageway holds the chamber and strikes water hole (217) switch-on, reduce when hydraulic pressure, pressure spring (202) will strike valve piece (201) and bounce, strike water hole (217) passageway and close, inlet opening (204) hold chamber pressure and increase again, will push down impact hemisphere (209) through striking valve piece (201) again, strike and connect through tension spring (210) around hemisphere (209), because inertia and tension spring (210) elasticity after being strikeed, make impact hemisphere (209) oscillate from top to bottom, form the broken rock of motor impact force.
3. The all-metal axial dual-plunger rotary impact downhole positive displacement motor of claim 1, wherein: the valve plate (305) and the valve shaft (214) are combined into a double valve mechanism which is respectively connected with the impact module (2) and the double-plunger rotating part (3) through channels, and the pressure spring (202) is matched with the impact module (2) through the channel connection to intermittently open and close the oscillating hemisphere (209) between the high-pressure cavity and the low-pressure cavity; the difference of the pressure difference is 30 degrees with the upper channel and the lower channel of the stator, so that the high pressure and the low pressure in the double-plunger cavity are alternately switched.
4. An all-metal axial dual-plunger rotary impact downhole positive displacement motor as claimed in claim 3, wherein: the double-flow distribution mechanism is connected with the impact module (2), the impact valve block (201) is connected with the steel ball (208), axial displacement is generated under the action of hydraulic pressure, the impact inclined hole (207) is connected with the low-pressure channel to form a pressure relief channel, and the high-pressure channel (205) is connected with the water inlet hole (204) to complete the flow distribution process of the impact module (2).
5. The all-metal axial dual-plunger rotary impact downhole positive displacement motor of claim 1, wherein: the upper end cover (213) is connected with the valve shaft (214), and the valve shaft (214) is assembled and matched with the valve plate (305), so that when the plunger cavity on the plunger stator (314) is filled with high-pressure drilling fluid, the cavity formed by the water outlet plate (306) and the plunger stator lower part (315) is connected with the low-pressure channel. When the plunger stator moves axially (314), the plunger is pushed to rotate and rotate in an abdicating way with the rotor, the plunger stator moves downwards (315) to the highest point of rotation, then the flow distribution plate (305) distributes flow, high-pressure drilling fluid enters, the plunger stator is pushed to move axially (315), and the reciprocating motion of the plunger pushes the rotor to abdicating and rotate continuously.
6. The all-metal axial dual-plunger rotary impact downhole positive displacement motor of claim 1, wherein: n stator lugs (317) are processed at the end part of the plunger stator upper part (314), and the stator limiting block lower part (319) is embedded between the plunger stator upper part (314) to limit the plunger stator (314) in the circumferential direction.
7. The all-metal axial dual-plunger rotary impact downhole positive displacement motor of claim 1, wherein: the upper distributing hole (215) is defined to be matched with a water inlet (309) of the rotor to form a channel which is opened after rotating a certain angle and closed after rotating the certain angle, and then the drilling fluid is discharged through a water gap (320) of the distributing plate.
8. The high temperature resistant all-metal ball plunger downhole drilling tool of claim 1, wherein: the rotor water outlet (310) is connected with the water outlet hole (321), the water outlet hole (321) is connected with the water outlet hole (322) of the outer cylinder, the octagonal shaft (311) is connected with the spline output shaft (4), and torque is output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498909.9A CN114961551A (en) | 2022-05-09 | 2022-05-09 | All-metal axial double-plunger rotary impact type downhole positive displacement motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498909.9A CN114961551A (en) | 2022-05-09 | 2022-05-09 | All-metal axial double-plunger rotary impact type downhole positive displacement motor |
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| Publication Number | Publication Date |
|---|---|
| CN114961551A true CN114961551A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210498909.9A Pending CN114961551A (en) | 2022-05-09 | 2022-05-09 | All-metal axial double-plunger rotary impact type downhole positive displacement motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN114961551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116752914A (en) * | 2023-08-14 | 2023-09-15 | 东北石油大学三亚海洋油气研究院 | Cleaning device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020166700A1 (en) * | 2001-05-11 | 2002-11-14 | Gillis Peter J. | Rotational impact drill assembly |
| CN2537848Y (en) * | 2002-04-26 | 2003-02-26 | 张作武 | Double plunger hydraulic hammer |
| US20080217038A1 (en) * | 2007-03-06 | 2008-09-11 | Crooks Dale G | Percussion adapter for positive displacement motors |
| CN205089524U (en) * | 2015-09-22 | 2016-03-16 | 中国石油集团渤海钻探工程有限公司 | Irrotationality is apart from all -metal positive displacement well drilling motor |
| CN110593752A (en) * | 2019-10-22 | 2019-12-20 | 中国地质大学（北京） | All-metal downhole power drilling tool based on multi-stage double-plunger-eccentric gear mechanism |
| CN113217267A (en) * | 2021-06-08 | 2021-08-06 | 中国地质大学（北京） | All-metal high-temperature-resistant cycloid type downhole motor |
| CN113389681A (en) * | 2021-06-08 | 2021-09-14 | 中国地质大学（北京） | All-metal dynamic seal concentric centralizing type downhole volume motor |
| CN113503128A (en) * | 2021-07-12 | 2021-10-15 | 中国地质大学（北京） | All-metal concentric forced flow distribution positive displacement downhole motor |
-
2022
- 2022-05-09 CN CN202210498909.9A patent/CN114961551A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020166700A1 (en) * | 2001-05-11 | 2002-11-14 | Gillis Peter J. | Rotational impact drill assembly |
| CN2537848Y (en) * | 2002-04-26 | 2003-02-26 | 张作武 | Double plunger hydraulic hammer |
| US20080217038A1 (en) * | 2007-03-06 | 2008-09-11 | Crooks Dale G | Percussion adapter for positive displacement motors |
| CN205089524U (en) * | 2015-09-22 | 2016-03-16 | 中国石油集团渤海钻探工程有限公司 | Irrotationality is apart from all -metal positive displacement well drilling motor |
| CN110593752A (en) * | 2019-10-22 | 2019-12-20 | 中国地质大学（北京） | All-metal downhole power drilling tool based on multi-stage double-plunger-eccentric gear mechanism |
| CN113217267A (en) * | 2021-06-08 | 2021-08-06 | 中国地质大学（北京） | All-metal high-temperature-resistant cycloid type downhole motor |
| CN113389681A (en) * | 2021-06-08 | 2021-09-14 | 中国地质大学（北京） | All-metal dynamic seal concentric centralizing type downhole volume motor |
| CN113503128A (en) * | 2021-07-12 | 2021-10-15 | 中国地质大学（北京） | All-metal concentric forced flow distribution positive displacement downhole motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116752914A (en) * | 2023-08-14 | 2023-09-15 | 东北石油大学三亚海洋油气研究院 | Cleaning device |
| CN116752914B (en) * | 2023-08-14 | 2023-11-10 | 东北石油大学三亚海洋油气研究院 | Cleaning device |
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Application publication date: 20220830 |
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