CN103075097A - Torsional impact drilling acceleration tool - Google Patents
Torsional impact drilling acceleration tool Download PDFInfo
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- CN103075097A CN103075097A CN2013100144446A CN201310014444A CN103075097A CN 103075097 A CN103075097 A CN 103075097A CN 2013100144446 A CN2013100144446 A CN 2013100144446A CN 201310014444 A CN201310014444 A CN 201310014444A CN 103075097 A CN103075097 A CN 103075097A
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Abstract
The invention discloses a torsional impact drilling acceleration tool, which consists of a shell, a seat body, a flow guide unit, an impact unit and an anti-drop unit. A male buckle connected with a drill collar is arranged at the upper end of the tool. A female buckle connected with a drill bit is arranged at the lower end of the tool. The shell is connected with the seat body through splines. When the tool works, torque and bit pressure are transmitted through the splines. The flow guide unit comprises a sealing cover, a desanding sleeve and a screen pipe. A lateral passage for the upward return of fluid and a step for placing the desanding sleeve are arranged at the upper end of the sealing cover. The impact unit comprises a positioning sleeve, an impact hammer and a bearing. The impact hammer is provided with two starting hammerheads and two impact hammerheads. The anti-drop unit comprises an anti-drop block, a bolt, a spring and anti-drop grooves. Low-amplitude high-frequency torsional impact can be provided for the drilling drill bit, and is used for retarding the stick-slip vibration of a lower drilling tool combination in a drilling process, so that mechanical drilling speed is increased, and failures of a drilling tool are reduced.
Description
Technical field
The present invention relates to the drilling speed instrument in the petroleum natural gas exploration, thereby be specifically a kind of torsional pulse drilling speed instrument that vibrates to improve brokenly the rock capacity usage ratio and reduce drilling tool failure raising rate of penetration by slowing down the lower drilling tool stick-slip.
Background technology
Along with the significantly increase of country to the Demand of Oil ﹠ Gas amount, the exploration and development dynamics of petroleum gas continues to increase.The drilling hole number of deep ﹠ ultra-deep well is increasing, and the drilling well difficulty is also continuing to increase.The stick-slip vibration is to bore the key factor that easily causes drilling tool failure and cause rate of penetration to descend common in the deep ﹠ ultra-deep well process, and is particularly evident when creeping into the deep hard formation.The stick-slip vibration (the lower drilling tool moment of torsion periodically gathers and discharges) of lower drilling tool can't be effectively alleviated in the existing drilling well of axially spinning, even may aggravate the stick-slip vibration owing to increase the wedging amount of drill bit.Nearest theory and experimental study show that the high-frequency torsional pulse that puts on lower drilling tool can be used for suppressing its stick-slip vibration.
Existing patent US6742609B2 adopts the turbine drive beater mechanism, form high-frequency torsional pulse and directly reach drill bit, patent CN101463709B adopts screw motor to drive beater mechanism, these two kinds of instruments all can reach the purpose that forms high-frequency torsional pulse, are that the wearing and tearing of impulse member of ratchet are very fast but its shortcoming is geometry.
Patent 201010511421.1 adopts another kind of structure to form high-frequency torsional pulse, its weak point mainly comprises: contain multiple additives and barite etc. in (1) drilling fluid, this instrument does not arrange desanding device, easily causes because of the sand grains deposition impact unit being run well; (2) one-shot hammer impacts pedestal aggravates the whirling motion behavior of lower drilling tool easily, and then affects wellbore quality; (3) according to the structure that discloses, can't realize the installation and removal to the spherical connecting body that connects hammer seat and housing; The situation that may have the drill bit bit freezing in the drilling operation course, connected body need be born the tens of tons of drill string even larger upper lifting force, and its safety is lower.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of torsional pulse drilling speed instrument, in order to produce by a narrow margin high-frequency torsional pulse.By by the sand grains characteristics different from fluid density, arrange the desanding cover make return to the drilling fluid of fairing cap side path be the drilling fluid of removing sand grains; By in conjunction with the drill string kinetic theory, propose to arrange the structure of symmetrical two jump bits, to avoid aggravating the whirling motion of lower drilling tool, simultaneously so that under the condition that produces equal ballistic work, reduce the wearing and tearing of impact components; By analyzing anti-lost block construction operation possibility and it being carried out mechanical analysis, setting is easy to assemble and safe anti-lost unit.
For achieving the above object, the technical solution used in the present invention is: a kind of torsional pulse drilling speed instrument, comprise housing, pedestal, flow guiding unit, impact unit and anti-lost unit, it is characterized in that: described housing upper end is provided with the pin thread that connects drill collar, the lower end is provided with the housing spline with the pedestal spline fitted, and enclosure interior comprises flow guiding unit, impact unit and anti-lost unit; Described pedestal upper end is provided with the inner chamber that cooperates for jump bit, the lower end be provided with for the box that connects drill bit and for the pedestal spline of housing spline effect; Described flow guiding unit comprises desanding cover, seal cover and screen casing; Described impact unit comprises positioning sleeve, jump bit, upper needle bearing, upper deep groove ball bearing, lower deep groove ball bearing and lower needle bearing, jump bit is provided with and starts tup and impact tup, start tup and positioning sleeve and form the startup chamber, starting tup acts on and starts that the impact tup acts in the impact chamber of pedestal in the chamber, the up and down two ends of jump bit are connected with pedestal with lower needle bearing by upper deep groove ball bearing respectively, and positioning sleeve up and down two ends is connected with screen casing with lower deep groove ball bearing by upper needle bearing respectively; Anti-lost unit comprises anti-lost, bolt, spring, the anti-lost groove of housing and the anti-lost groove of pedestal.
Described torsional pulse drilling speed instrument is characterized in that the circumferentially housing spline of uniform 4 45o of housing lower end, the spline of uniform 4 50o in the outside, pedestal lower end, and housing spline and pedestal spline exist the gap to be used for impact energy is reached drill bit fully.
Described torsional pulse drilling speed instrument is characterized in that housing is provided with 2 anti-lost grooves of housing and 2 bolts hole, and bolt hole is as the passage of falling-proof apparatus dismounting, and bolt is used for the sealing bolt hole; Pedestal is provided with 2 anti-lost grooves of pedestal, and anti-lost radial thickness is less than the anti-lost groove depth of pedestal, and anti-lost is compressed in the anti-lost groove of pedestal; The anti-lost groove of pedestal moves to the anti-lost groove of housing place when forming cavity, and spring discharges and pushes the anti-lost groove of housing to anti-lost, is close to the anti-lost trough wall surface of housing.
Described torsional pulse drilling speed instrument is characterized in that: the quantity that described pedestal impacts the chamber is 2, and the quantity of pedestal dredging flow groove is 2, is equipped with 4 guiding gutters on pedestal and the seal cover; The quantity that sump pit and impact chamber forehand sump pit are strikeed back in startup tup on the jump bit, impact tup, startup chamber forehand sump pit, startup chamber counterattack sump pit, impact chamber all is 2; The quantity of the positioning sleeve forehand runner on the positioning sleeve and positioning sleeve counterattack runner all is 2.
Described torsional pulse drilling speed instrument, it is characterized in that: the seal cover of described flow guiding unit is used for the upper surface of sealing impact unit, the seal cover upper end is provided with the side path that returns on the fluid and the step that is used for placing the desanding cover, and screen casing is fixed in pedestal inside.
Described torsional pulse drilling speed instrument is characterized in that the screen casing middle part is provided with along circumferential equally distributed effluent groove, and the screen casing bottom is provided with outage.
Compared with prior art, the beneficial effect that the present invention has is: be provided with the desanding cover in (1) flow guiding unit, what the seal cover side path of flowing through flowed into guiding gutter is the drilling fluid of removing the sand grains such as additive and barite, can avoid impact unit to lose efficacy because of the sand grains deposition; (2) two jump bits impact pedestal, the application life that can improve impact components under the condition that produces equal ballistic work; (3) two jump bits are symmetrical, impact simultaneously pedestal, can avoid aggravating the whirling motion of lower drilling tool, and the one-shot hammer impacts aggravated the whirling motion behavior of lower drilling tool easily; (4) instrument with anti-lost unit be easy to the assembling and safe.
Description of drawings
Fig. 1 is the schematic diagram of apparatus of the present invention;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the clockwise constantly sectional drawing of finishing of the B-B jump bit of Fig. 1;
Fig. 4 is the clockwise constantly sectional drawing of finishing of the B-B positioning sleeve of Fig. 1;
Fig. 5 is that constantly sectional drawing is finished in the B-B jump bit reverse of Fig. 1;
Fig. 6 is that constantly sectional drawing is finished in the B-B positioning sleeve reverse of Fig. 1;
Fig. 7 is the C-C sectional drawing of Fig. 1;
Fig. 8 is the D-D sectional drawing of Fig. 1;
Fig. 9 is the structure chart of screen casing in apparatus of the present invention;
Figure 10 is the structure chart of jump bit in apparatus of the present invention;
Figure 11 is the E-E sectional drawing of Figure 10;
Figure 12 is the structure chart of positioning sleeve in apparatus of the present invention;
Figure 13 is the left view of Figure 12;
Figure 14 is the F-F sectional drawing of Figure 12;
Among the figure: 1. housing, 2. desanding cover, 3. seal cover is 4. gone up needle bearing, 5. go up deep groove ball bearing, 6. screen casing, 7. positioning sleeve, 8. jump bit, 9. descend deep groove ball bearing, 10. descend needle bearing, 11. anti-lost, 12. bolts, 13. spring, 14. pedestals, 15. pin threads, 16. the housing spline, the anti-lost groove of 17. housings, 18. bolts hole, 19. box, 20 pedestal splines, the anti-lost groove of 21. pedestals, 22. guiding gutter, 23. counterattacks start runner, and 24. forehands start runner, 25. the impact chamber, 26. dredging flow grooves, 27. start tup, 28. the impact tup, 29. start chamber forehand sump pit, and 30. start chamber counterattack sump pit, 31. impact chamber counterattack sump pit, 32. impact chamber forehand sump pit, 33. start the chamber, 34. positioning sleeve forehand runner, 35. positioning sleeves counterattack runner, 36. positive shock surfaces, 37. anti-shock surface, 38. effluent grooves, 39. outages.
The specific embodiment
As shown in Figure 1, a kind of torsional pulse drilling speed of the present invention instrument comprises housing 1, pedestal 14, flow guiding unit, impact unit and anti-lost unit; It is characterized in that: described housing 1 upper end is provided with the pin thread 15 that connects drill collar, and the lower end is provided with the housing spline 16 that cooperates with pedestal spline 20, and housing 1 inside comprises flow guiding unit, impact unit and anti-lost unit; Described pedestal 14 upper ends are provided with the inner chamber that cooperates for jump bit 8, the pedestal spline 20 that the lower end is provided with for the box 19 that connects drill bit and is used for acting on housing spline 16; Described flow guiding unit comprises desanding cover 2, seal cover 3 and screen casing 6; Described impact unit comprises positioning sleeve 7, jump bit 8, upper needle bearing 4, upper deep groove ball bearing 5, lower deep groove ball bearing 9 and lower needle bearing 10, jump bit 8 is provided with and starts tup 27 and impact tup 28, start tup 27 and form startup chamber 33 with positioning sleeve 7, starting tup 27 acts in the startup chamber 33, impacting tup 28 acts in the impact chamber 25 of pedestal 14, the up and down two ends of jump bit 8 are connected with pedestal 14 with lower needle bearing 10 by upper deep groove ball bearing 5 respectively, and positioning sleeve is connected with screen casing 6 with lower deep groove ball bearing 9 by upper needle bearing 4 respectively at two ends about in the of 7; Anti-lost unit comprises anti-lost 11, bolt 12, spring 13, the anti-lost groove 17 of housing and the anti-lost groove 21 of pedestal.
As shown in Figure 8, described torsional pulse drilling speed instrument, it is characterized in that the circumferentially housing spline 16 of uniform 4 45o of housing 1 lower end, the spline of uniform 4 50o in the outside, pedestal 14 lower ends, housing spline 16 exists the gap to be used for impact energy is reached drill bit fully with the pedestal spline.
As shown in Figure 7, described torsional pulse drilling speed instrument is characterized in that housing 1 is provided with 2 anti-lost grooves 17 of housing and 2 bolts hole 18, and bolt hole 18 is as the passage of falling-proof apparatus dismounting, and bolt 12 is used for sealing bolt hole 18; Pedestal 14 is provided with 2 anti-lost grooves 21 of pedestal, and anti-lost 11 radial thickness is less than anti-lost groove 21 degree of depth of pedestal, and anti-lost 11 is compressed in the anti-lost groove 21 of pedestal; The anti-lost groove 21 of pedestal moves to the anti-lost groove of housing 17 places when forming cavity, and spring 13 discharges and pushes the anti-lost groove 17 of housing to anti-lost 11, is close to anti-lost groove 17 walls of housing.When demounting tool, by bolt hole 18 anti-lost 11 is compressed to and is positioned at the anti-lost groove 21 of pedestal fully, housing 1 and pedestal 14 are axially staggered reaches the dismounting purpose simultaneously.
Shown in Fig. 2-6, described torsional pulse drilling speed instrument is characterized in that: the quantity that described pedestal impacts the chamber is 2, is equipped with 4 guiding gutters 22 on pedestal 14 and the seal cover 3.Shown in Figure 10-14, described torsional pulse drilling speed instrument is characterized in that: the quantity that sump pit 31 and impact chamber forehand sump pit 32 are strikeed back in the startup tup 27 on the jump bit 8, impact tup 28, startup chamber forehand sump pit 29, startup chamber counterattack sump pit 30, impact chamber all is 2; The quantity of the positioning sleeve forehand runner 34 on the positioning sleeve 7 and positioning sleeve counterattack runner 35 all is 2.
Described torsional pulse drilling speed instrument, it is characterized in that: the seal cover 3 of described flow guiding unit is used for the upper surface of sealing impact unit, the step that seal cover 3 upper ends are provided with the side path that returns on the fluid and are used for placing desanding cover 2, screen casing 6 is fixed in pedestal 14 inside.
As shown in Figure 9, described torsional pulse drilling speed instrument is characterized in that screen casing 6 middle parts are provided with along circumferential equally distributed effluent groove 38, and screen casing 6 bottoms are provided with outage 39.
In operating process of the present invention, the instrument upper end connects drill collar or other power drilling tools, and the lower end directly connects drill bit.Moment of torsion and the pressure of the drill that the well head rotating disk is carried through drill string transmit by the cooperation of housing spline 16 and pedestal spline 20.Directly the flow through hollow channel of screen casing 6 of the drilling fluid part of inflow instrument flow to drill bit; A part flows into by guiding gutter 22 that forehands start runners 24 or counterattack starts runner 23, enters to start to flow to dredging flow groove 26 behind the chamber 33 and discharged by outage 39; Another part is by effluent groove 38 positioning sleeve forehand runner 34 or the positioning sleeve counterattack runner 35 of flowing through, and enters to be discharged by outage 39 after impacting chamber 25.
Fig. 3 is that jump bit 8 forwards finish is the sectional drawing of jump bit 8 frontal impact pedestals 14 initial times constantly.Positioning sleeve 7 rotates with jump bit 8 in rotation process, impacts pedestals 14 and stops when clockwise positioning sleeve 7 because the effect of inertia continuation is clockwise when impacting tup 28 on the one hand; On the other hand, startup chamber 33 is transferred to gradually and starts tup 27 opposite sides, and high-pressure fluid starts runner 23 by guiding gutter 22 by counterattack, enters the startup chamber 33 of new formation through counterattack discharge opeing road, startup chamber 30 again, accelerates the clockwise of positioning sleeve 7.Fluid in the startup chamber 33 drains into dredging flow groove 26 owing to the clockwise of positioning sleeve 7 compresses by starting chamber forehand sump pit 29.Cover 7 clockwise finishing to be positioned, instrument enters duty shown in Figure 4.This moment, jump bit 8 and positioning sleeve 7 all can't be clockwise, and the high-pressure fluid promotion jump bit 8 that is entered the new startup chamber 33 that forms by counterattack startup runner 23 begins to reverse.Positive shock surface 36 beginnings break away from and form with pedestal 14 impacts chamber 25, is entered the reverse of impacting chamber 25 and acceleration shock hammer 8 this moment by the fluid of positioning sleeve counterattack runner 35 through impacting chamber forehand sump pit 32; Impact tup 28 opposite sides and constantly dwindled by 25 in the impact chamber that anti-shock surface 37 and pedestal 14 form, internal flow is discharged by impacting chamber counterattack sump pit 31.Treat that jump bit 8 reverses and finish that instrument enters duty shown in Figure 5.In jump bit 8 reversal procedures, jump bit 8 drives positioning sleeve 7 and rotates together, and positioning sleeve 7 was because effect of inertia continues reverse when one side stopped to reverse when impact tup 28 impact pedestals 14; On the other hand, start chamber 33 and be transferred to startup tup 27 opposite sides, high-pressure fluid starts runner 24 by guiding gutter 22 by forehand, enters startup chamber 33 through starting the positive sump pit 29 in chamber again, accelerates the reverse of positioning sleeve 7.Fluid in the startup chamber 33 drains into dredging flow groove 22 owing to the reverse of positioning sleeve 7 is compressed by starting chamber counterattack sump pit 30.Cover 7 to be positioned reverses to be finished, and instrument enters duty shown in Figure 6.This moment, jump bit 8 and positioning sleeve 7 all can't reverse, and entered the high-pressure fluid promotion jump bit 8 that starts chamber 33 by forehand startup runner 24 and began to reverse.Anti-shock surface 37 beginnings break away from and form with pedestal 14 impacts chamber 25, is entered by the fluid of positioning sleeve forehand runner 34 through impacting chamber counterattack sump pit 31 this moment to impact the clockwise of chamber 25 and acceleration shock hammer 8.Treat jump bit 8 clockwise finishing, instrument enters duty shown in Figure 3.
The aforesaid operations process is a complete work period of torsional pulse drilling speed instrument, and instrument will repeat aforesaid operations and constantly circulate, and form thus high-frequency percussion.The impact that instrument produces will directly reach drill bit by pedestal, realize providing to drill bit the purpose of high-frequency torsional pulse.
Claims (3)
1. torsional pulse drilling speed instrument, comprise housing (1), pedestal (14), flow guiding unit, impact unit and anti-lost unit, it is characterized in that: described housing (1) upper end is provided with the pin thread (15) that connects drill collar, the lower end is provided with the housing spline (16) that cooperates with pedestal spline (20), and housing (1) inside comprises flow guiding unit, impact unit and anti-lost unit; Described pedestal (14) upper end is provided with the inner chamber that cooperates for jump bit (8), the pedestal spline (20) that the lower end is provided with for the box (19) that connects drill bit and is used for acting on housing spline (16); Described flow guiding unit comprises desanding cover (2), seal cover (3) and screen casing (6); Described impact unit comprises positioning sleeve (7), jump bit (8), upper needle bearing (4), upper deep groove ball bearing (5), lower deep groove ball bearing (9) and lower needle bearing (10), jump bit (8) is provided with and starts tup (27) and impact tup (28), start tup (27) and form startup chamber (33) with positioning sleeve (7), starting tup (27) acts in the startup chamber (33), impacting tup (28) acts in the impact chamber (25) of pedestal (14), the up and down two ends of jump bit (8) are connected with pedestal (14) with lower needle bearing (10) by upper deep groove ball bearing (5) respectively, and positioning sleeve (7) up and down two ends is connected with screen casing (6) with lower deep groove ball bearing (9) by upper needle bearing (4) respectively; Anti-lost unit comprises anti-lost (11), bolt (12), spring (13), the anti-lost groove of housing (17) and the anti-lost groove of pedestal (21).
2. a kind of torsional pulse drilling speed instrument according to claim 1 is characterized in that: the quantity that described pedestal (14) impacts chamber (25) is 2; The quantity that sump pit (31) and impact chamber forehand sump pit (32) are strikeed back in startup tup (27) on the jump bit (8), impact tup (28), startup chamber forehand sump pit (29), startup chamber counterattack sump pit (30), impact chamber all is 2; The quantity of the positioning sleeve forehand runner (34) on the positioning sleeve (7) and positioning sleeve counterattack runner (35) all is 2.
3. a kind of torsional pulse drilling speed instrument according to claim 1, it is characterized in that: the seal cover of described flow guiding unit (3) is used for the upper surface of sealing impact unit, seal cover (3) upper end is provided with the side path that returns on the fluid and the step that is used for placing desanding cover (2), and screen casing (6) is fixed in pedestal (14) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100144446A CN103075097A (en) | 2013-01-16 | 2013-01-16 | Torsional impact drilling acceleration tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100144446A CN103075097A (en) | 2013-01-16 | 2013-01-16 | Torsional impact drilling acceleration tool |
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| CN103075097A true CN103075097A (en) | 2013-05-01 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533283A (en) * | 2014-12-26 | 2015-04-22 | 长江大学 | Hydraulic circumferential torque impact generator |
| CN105041201A (en) * | 2015-07-09 | 2015-11-11 | 西南石油大学 | Hydraulic gentle vibration speed acceleration drill tool |
| CN105298380A (en) * | 2014-06-27 | 2016-02-03 | 中国石油化工股份有限公司 | Well drilling device |
| CN105443034A (en) * | 2015-12-03 | 2016-03-30 | 克拉玛依市新锋锐金刚石钻头制造有限公司 | Frequency-adjustable torque force impact acceleration device |
| CN106150348A (en) * | 2015-04-09 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of mechanical type torsional impact drilling tool |
| WO2017054472A1 (en) * | 2015-10-01 | 2017-04-06 | 中国石油集团西部钻探工程有限公司 | Torsion impact speed accelerating device |
| CN108166921A (en) * | 2016-12-07 | 2018-06-15 | 中国石油天然气集团公司 | Drill hammer |
| CN108756732A (en) * | 2018-08-02 | 2018-11-06 | 西南石油大学 | Circumferential impactor based on screw rod and spring |
| CN110905419A (en) * | 2019-12-23 | 2020-03-24 | 中国石油大学(华东) | Petroleum drilling tool |
| CN113236116A (en) * | 2021-06-23 | 2021-08-10 | 重庆科技学院 | Composite impact drilling speed-increasing device |
| CN113802979A (en) * | 2021-08-05 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Hydraulic composite vibration impact pipe column |
| CN115522881A (en) * | 2022-11-28 | 2022-12-27 | 成都阿斯贝瑞科技有限公司 | Constant-pressure constant-torsion drilling tool |
| WO2024055975A1 (en) * | 2022-09-15 | 2024-03-21 | 中国石油天然气集团有限公司 | Self-excited torsional drilling tool for shock absorbing during drilling |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298380A (en) * | 2014-06-27 | 2016-02-03 | 中国石油化工股份有限公司 | Well drilling device |
| CN104533283A (en) * | 2014-12-26 | 2015-04-22 | 长江大学 | Hydraulic circumferential torque impact generator |
| CN106150348B (en) * | 2015-04-09 | 2018-04-10 | 中国石油化工股份有限公司 | A kind of mechanical torsional impact drilling tool |
| CN106150348A (en) * | 2015-04-09 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of mechanical type torsional impact drilling tool |
| CN105041201A (en) * | 2015-07-09 | 2015-11-11 | 西南石油大学 | Hydraulic gentle vibration speed acceleration drill tool |
| US10538968B2 (en) | 2015-10-01 | 2020-01-21 | Cnpc Xibu Drilling Engineering Company Limited | Torsion impact speed acceleration device |
| WO2017054472A1 (en) * | 2015-10-01 | 2017-04-06 | 中国石油集团西部钻探工程有限公司 | Torsion impact speed accelerating device |
| CN105443034A (en) * | 2015-12-03 | 2016-03-30 | 克拉玛依市新锋锐金刚石钻头制造有限公司 | Frequency-adjustable torque force impact acceleration device |
| CN108166921A (en) * | 2016-12-07 | 2018-06-15 | 中国石油天然气集团公司 | Drill hammer |
| CN108166921B (en) * | 2016-12-07 | 2019-10-11 | 中国石油天然气集团公司 | Drill hammer |
| CN108756732A (en) * | 2018-08-02 | 2018-11-06 | 西南石油大学 | Circumferential impactor based on screw rod and spring |
| CN108756732B (en) * | 2018-08-02 | 2023-11-14 | 西南石油大学 | Circumferential impactor based on screw and spring |
| CN110905419B (en) * | 2019-12-23 | 2021-06-11 | 中国石油大学(华东) | Petroleum drilling tool |
| CN110905419A (en) * | 2019-12-23 | 2020-03-24 | 中国石油大学(华东) | Petroleum drilling tool |
| CN113236116A (en) * | 2021-06-23 | 2021-08-10 | 重庆科技学院 | Composite impact drilling speed-increasing device |
| CN113236116B (en) * | 2021-06-23 | 2023-10-27 | 重庆科技学院 | Composite impact drilling speed increasing device |
| CN113802979A (en) * | 2021-08-05 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Hydraulic composite vibration impact pipe column |
| CN113802979B (en) * | 2021-08-05 | 2024-02-23 | 中石化石油工程技术服务有限公司 | Hydraulic composite vibration impact pipe column |
| WO2024055975A1 (en) * | 2022-09-15 | 2024-03-21 | 中国石油天然气集团有限公司 | Self-excited torsional drilling tool for shock absorbing during drilling |
| CN115522881A (en) * | 2022-11-28 | 2022-12-27 | 成都阿斯贝瑞科技有限公司 | Constant-pressure constant-torsion drilling tool |
| CN115522881B (en) * | 2022-11-28 | 2023-01-20 | 成都阿斯贝瑞科技有限公司 | Constant-pressure constant-torsion drilling tool |
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Application publication date: 20130501 |