CN201137469Y - Down-hole hydraulic reversing device - Google Patents
Down-hole hydraulic reversing device Download PDFInfo
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- CN201137469Y CN201137469Y CNU2007201596296U CN200720159629U CN201137469Y CN 201137469 Y CN201137469 Y CN 201137469Y CN U2007201596296 U CNU2007201596296 U CN U2007201596296U CN 200720159629 U CN200720159629 U CN 200720159629U CN 201137469 Y CN201137469 Y CN 201137469Y
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Abstract
The utility model discloses a downhole hydraulic breakout device, belonging to the oil industry, for breakout unfreezing operation of freezing pipe string in an oil and water well, particularly of the breakout unfreezing operation of a highly-deviated well and the downhole string of a horizontal well. The utility model comprises a bypass valve assembly, a motor, a universal joint assembly, a stabilizing bearing assembly, a counterclockwise shearing stop mechanism and a dropping buckle compensation torque transmission mechanism, wherein the bypass valve assembly, the motor, the universal joint assembly, the stabilizing bearing assembly, and the counterclockwise shearing stop mechanism are connected from up to down in turn. A connection transition joint, a torque converter and a dropping buckle compensation torque transmission mechanism are connected under the counterclockwise shearing stop mechanism in turn, the torque converter provides large and reliable output torque for the freezing pipe string. The utility model is provided with a torque converter assembly and a dropping buckle compensation torque transmission mechanism, with simple operation for the salvage dropping buckle unfreezing process of a freezing pipe string.
Description
Technical field
The utility model relates to the underground work instrument of petroleum industry, and particularly a kind of underground hydraulic pressure back-off device is used for the back-off unfreezing operation that oil-water well is met the card tubing string, is particularly useful for the back-off unfreezing operation of high angle hole and horizontal well down-hole string.
Background technology
In the Oilfield developing manufacturing process, the oil-water well tubing string is often met card, and carrying on energetically needs under the invalid situation of unfreezing tubing string is implemented back-off operation.The general ground power reverse rotation back-off that adopts, the back-off degree of depth is difficult to be grasped; Reverse buckling equipment under the open well of employing is also arranged, just changing counter-rotating and implementing back-off, or directly adopt the left-hand thread drilling tool to implement back-off.These several modes all are ground rotation back-offs, and for high angle hole and horizontal well and inapplicable, reversing torque is difficult to be delivered to kickoff point (KOP) with lower tubular column.Carry out the technical research of down-hole string back-off in succession at above-mentioned situation oil service industry, had Chinese patent: " waterpower reverse buckling equipment " patent No.: 91224158.6; " hydraulic inversive fastening set for well " patent No.: 02135409.X; " reverse buckling equipment " patent No.: 200510047101.5.Preceding two kinds is the waterpower back-off, has the little problem of output torque, all is a kind of ideal design, and is not suitable for on-the-spot needs, does not see the product material object.The patent No.: 200510047101.5 reverse buckling equipments of announcing, more general common reverse buckling equipment moment of torsion amplification ratio is big, can reach 23 times, and straight well or little gradient well are more suitable, but need ground power to cooperate.High angle hole or horizontal well also are not suitable for, also exist spline to disanchor not thoroughly, do not have the problem of moving back the button compensation.
Summary of the invention
The purpose of this utility model provides a kind of underground hydraulic pressure back-off device, when the oil-water well down-hole string is met card, when particularly high angle hole and horizontal well chance card tubing string needs back-off operation, make reversing torque be passed to down-hole string effectively, improve the success rate of meeting card tubing string back-off unfreezing operation, alleviate workover treatment shop floor worker labour intensity.
The present technique solution can reach above-mentioned purpose: a kind of underground hydraulic pressure back-off device, comprise by-pass valve assembly, motor, universal joint assembly, alignment bearing assembly, instead turn round rotation preventive mechanism and move back button compensation torsion pass mechanism that by-pass valve assembly, motor, universal joint assembly, alignment bearing assembly and the anti-rotation preventive mechanism of turning round are linked in sequence from top to bottom.Connect transit joint, torque converter assemblage successively below the rotation preventive mechanism and move back button compensation torsion pass mechanism counter turning round, provide bigger, more reliable output torque for meeting the card tubing string by torque converter assemblage.
The beneficial effects of the utility model are: this device is provided with torque converter assemblage and moves back button compensation torsion pass mechanism, and torque converter assemblage passes to the supporting fishing tool that is connected this tool lower portion after moment of torsion is amplified, and can accomplish the end in view.Meeting the card tubing string, to salvage back-off unfreezing Job Operations easy, and circulation fluid has flushing action to the anti-rotation preventive mechanism of turning round, and avoids the turnover panel block teeth to skid, and counter to turn round spline safe and reliable, and the output reversing torque is big, and it is simple to move back the button compensation.This device back-off fishing success ratio height has alleviated a line worker labour intensity, has remarkable economic efficiency and social benefit.
Description of drawings
Accompanying drawing 1 is first figure of the utility model structural representation.
Accompanying drawing 2 is second figure of the utility model structural representation.
Accompanying drawing 3 be among Fig. 2 A-A to sectional view.
Accompanying drawing 4 be among Fig. 2 B-B to sectional view.
Accompanying drawing 5 be among Fig. 2 C-C to sectional view.
Among the figure: by-pass valve assembly 1, motor 2, universal joint assembly 3, universal joint housing 4, alignment bearing assembly 5, power output shaft 6, mandrel 7, the anti-rotation preventive mechanism 8 of turning round, torque converter assemblage 9, move back button compensation torsion pass mechanism 10, the anti-spline housing 11 of turning round, locating ring 12,16 and 20, fixing pin 13,17 and 21, turnover panel block teeth 14, spring leaf 15, wiper block 18, set upright spring 19, transit joint 22, alignment bearing 23, sun wheel shaft 24, planetary gear 25, planetary wheel carrier 26, bending moment housing 27, bearing pair 28, seal plug 29, bending moment output shaft 30, nut 31, carrying joint 32, lower contact 33.
The specific embodiment
Below in conjunction with embodiment the utility model is done further detailed description: referring to attached Fig. 1 and 2, a kind of underground hydraulic pressure back-off device, comprise by-pass valve assembly 1, motor 2, universal joint assembly 3, alignment bearing assembly 5, instead turn round rotation preventive mechanism 8 and move back button compensation torsion pass mechanism 10 that by-pass valve assembly 1, motor 2, universal joint assembly 3, alignment bearing assembly 5 and the anti-rotation preventive mechanism 8 of turning round are linked in sequence from top to bottom.Connect transit joint 22, torque converter assemblage 9 successively below the rotation preventive mechanism 8 and move back button compensation torsion pass mechanism 10 counter turning round.Provide bigger, more reliable output torque by torque converter assemblage 9 for meeting the card tubing string.Torque converter assemblage 9 comprises alignment bearing 23, bending moment train, bending moment housing 27, bearing pair 28, seal plug 29 and bending moment output shaft 30, and alignment bearing 23 is loaded in the centre bore of transit joint 22 lower ends; The bending moment train is installed in the bending moment housing 27, the top of bending moment housing 27 is connected with the bottom cylindrical of transit joint 22, circle is installed bending moment output shaft 30, bearing pair 28 and seal plug 29 in its underpart, by the screwed connection of circle in seal plug 29 and bending moment housing 27 bottoms.The bending moment train comprises sun wheel shaft 24, planetary gear 25 and planetary wheel carrier 26, and planetary wheel carrier 26 is goblets, is divided into upper cup body cavity and bottom cup handle by dividing plate, and dividing plate is provided with the planet wheel spindle installing hole; Be provided with mounting groove in the planetary wheel carrier 26 upper cup body cavitys, sun wheel shaft 24 is installed in central authorities, and planetary gear 25 is installed on every side, sees Fig. 4; Planetary wheel carrier 26 bottom cup handle peripheries are provided with mounting groove, and the bending moment planetary gear is installed.The interior circle of bending moment housing 27 is provided with internal gear, and planetary gear 25 and the bending moment planetary gear installed with planetary wheel carrier 26 mesh; Bending moment output shaft 30 tops are provided with bending moment wheel shaft installing hole, cooperate the moment of torsion behind the output bending moment with the wheel shaft of bending moment planetary gear.Planetary gear 25 and bending moment planetary gear are provided with 3 groups at least, and accompanying drawing 4 is depicted as 4 groups, to reduce the rotating speed of motor 2 outputs, amplify moment of torsion.Can increase or reduce the group number of planetary gear and bending moment planetary gear by changing the structure of planetary wheel carrier 26.Bending moment output shaft 30 bottoms are polygonized structures, cooperate with the inner chamber of the carrying joint 32 that moves back button compensation torsion pass mechanism 10, referring to accompanying drawing 5.Nut 31 is installed in bending moment output shaft 30 terminal cylindricals.The anti-rotation preventive mechanism 8 of turning round comprises mandrel 7, instead turns round spline housing 11, locating ring 12,16,20, fixing pin 13,17,21, turnover panel block teeth 14, spring leaf 15, wiper block 18 and set upright spring 19.Turnover panel block teeth 14, wiper block 18 and spring leaf 15, set upright spring 19 and be installed in the counter mounting groove of turning round spline housing 11.Locating ring 12,16,20 is enclosed within housing 11 peripheries, is fixed on counter turning round on the spline housing 11 by fixing pin 13,17,21, and the anti-spline housing 11 of turning round is connected with the housing of alignment bearing assembly 5, and the bottom is connected as a single entity by transit joint 22 and torque converter assemblage 9.Power output shaft 6 tops are connected with universal joint assembly 3 left-hand threads, and transmission is from the power of motor 2.The bottom of power output shaft 6 be linked in sequence mandrel 7 and sun wheel shaft 24, torque transfer after bending moment output shaft 30 will amplify is given the carrying joint 32 that moves back button compensation torsion pass mechanism 10, passes to the supporting fishing tool that is connected the utility model bottom through lower contact 33.Bottom at the universal joint housing 4 of universal joint assembly 3 is provided with circulation fluid passage 34.The flow through ring cavity of motor 2 and universal joint assembly 3 of power fluid returns the oil jacket ring cavity by circulation fluid passage 34, and the anti-rotation preventive mechanism 8 of turning round of bottom is had flushing action, avoids turnover panel block teeth 14 to skid, and makes the counter effect of turning round spline more reliable.The tooth angle of the outside tooth of turnover panel block teeth 14 is arbitrarily angled between 85 °-90 °, and initial angle of thread is arbitrarily angled between 70 °-80 °, and with the linear interlock of cannula cavity, counter to turn round spline effective, sees Fig. 3.
When oil-water well particularly high angle hole and horizontal well tubing string meet card, when needing to use the utility model back-off operation, G.I.H after this device lower contact 33 is connected with supporting fishing tool.Routine work is carried fishing string on dragging for and obtaining behind the fish, and increases lifting load according to the above tubing string load of down-hole stuck point, generally must not surpass 150kN.When being forced into 5～6MPa in the oil pipe, the bypass mechanism of by-pass valve assembly 1 is closed, and the power fluid motor 2 of flowing through returns the oil jacket ring cavity through the ring cavity of universal joint assembly 3 by circulation fluid passage 34, and the anti-rotation preventive mechanism 8 of turning round of bottom is implemented flushing.The dextrorotation reaction torque that the bending moment housing 27 of the stator of motor 2 and torque converter assemblage 9 produces is by anti-rotation preventive mechanism 8 splines of turning round; Flow through motor 2 of power fluid produces the derotation moments of torsion, amplify output through universal joint assembly 3, power output shaft 6, mandrel 7, sun wheel shaft 24, planetary wheel carrier 26, bending moment output shaft 30, pass to the supporting fishing tool that moves back button compensation torsion pass mechanism 10 and bottom, the above tubing string of stuck point is imposed the derotation moment of torsion carry out back-off operation.Can suitably improve pump pressure according to increasing load condition, descend to some extent or hook when loading with lotus and descending until pump pressure, drill string is carried in examination is not had blocked portion, lifting load less than back-off before during lifting load, the back-off operation is finished.Otherwise when continuing pressurization examination being carried drill string and do not had the blocked portion phenomenon after 5-10 minute, the back-off operation is finished.If when repeating 2 aforesaid operations and still can not finish back-off, transfer drill string after below the fishing string, the upper lifting pipe post, supporting fishing tool separates with fish, proposes tubing string and overlaps to mill and wait other operation, can not make top of fish complicated.
Claims (8)
1, a kind of underground hydraulic pressure back-off device, comprise by-pass valve assembly (1), motor (20), universal joint assembly (3), alignment bearing assembly (5), instead turn round rotation preventive mechanism (8) and move back button compensation torsion pass mechanism (10), by-pass valve assembly (1), motor (2), universal joint assembly (3), alignment bearing assembly (5) and the anti-rotation preventive mechanism (8) of turning round are linked in sequence from top to bottom, it is characterized in that connecting transit joint (22), torque converter assemblage (9) successively and moving back button compensation torsion pass mechanism (10) in anti-rotation preventive mechanism (8) below of turning round.
2, a kind of underground hydraulic pressure back-off device according to claim 1, it is characterized in that torque converter assemblage (9) comprises alignment bearing (23), bending moment train, bending moment housing (27), bearing pair (28), seal plug (29) and bending moment output shaft (30), alignment bearing (23) is loaded in the centre bore of transit joint (22) lower end; The bending moment train is installed in the bending moment housing (27), the top of bending moment housing (27) is connected with the bottom cylindrical of transit joint (22), circle is installed bending moment output shaft (30), bearing pair (28) and seal plug (29) in its underpart, by the screwed connection of circle in seal plug (29) and bending moment housing (27) bottom.
3, a kind of underground hydraulic pressure back-off device according to claim 2, it is characterized in that the bending moment train comprises sun wheel shaft (24), planetary gear (25) and planetary wheel carrier (26), planetary wheel carrier (26) is a goblet, be divided into upper cup body cavity and bottom cup handle by dividing plate, dividing plate is provided with the planet wheel spindle installing hole; Be provided with mounting groove in planetary wheel carrier (26) the upper cup body cavity, sun wheel shaft (24) is installed in central authorities, and planetary gear (25) is installed on every side; Planetary wheel carrier (26) bottom cup handle periphery is provided with mounting groove, and the bending moment planetary gear is installed.
4, according to claim 2 or 3 described a kind of underground hydraulic pressure back-off devices, it is characterized in that the interior circle of bending moment housing (27) is provided with internal gear, planetary gear (25) and the bending moment planetary gear installed with planetary wheel carrier (26) mesh; Bending moment output shaft (30) top is provided with bending moment wheel shaft installing hole, cooperates with the wheel shaft of bending moment planetary gear.
5, a kind of underground hydraulic pressure back-off device according to claim 4, it is characterized in that bending moment output shaft (30) bottom is a polygonized structure, cooperate with the inner chamber of the carrying joint (32) that moves back button compensation torsion pass mechanism (10), nut (31) is installed in the terminal cylindrical of bending moment output shaft (30).
6, a kind of underground hydraulic pressure back-off device according to claim 3 is characterized in that planetary gear (25) and bending moment planetary gear are provided with 3 groups at least.
7, a kind of underground hydraulic pressure back-off device according to claim 1 is characterized in that being provided with circulation fluid passage (34) in the bottom of the universal joint housing (4) of universal joint assembly (3).
8, a kind of underground hydraulic pressure back-off device according to claim 1, the tooth angle that it is characterized in that the outside tooth of the counter turnover panel block teeth (14) of turning round rotation preventive mechanism (8) are arbitrarily angled between 85-90 °, and initial angle of thread is arbitrarily angled between 70 °-80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201596296U CN201137469Y (en) | 2007-12-20 | 2007-12-20 | Down-hole hydraulic reversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201596296U CN201137469Y (en) | 2007-12-20 | 2007-12-20 | Down-hole hydraulic reversing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137469Y true CN201137469Y (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201596296U Expired - Fee Related CN201137469Y (en) | 2007-12-20 | 2007-12-20 | Down-hole hydraulic reversing device |
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| CN (1) | CN201137469Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147700A (en) * | 2013-04-08 | 2013-06-12 | 盘锦勇盛利石油科技开发有限公司 | Hydraulic power reversing device |
| CN104196481A (en) * | 2014-08-25 | 2014-12-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Horizontal well reversing clamping release method |
| CN104196481B (en) * | 2014-08-25 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of horizontal well back-off releasing method |
| CN107489387A (en) * | 2017-09-30 | 2017-12-19 | 山东胜利石油装备产业技术研究院 | A kind of novel hydraulic reverse buckling equipment |
| CN116498212A (en) * | 2023-03-13 | 2023-07-28 | 东营胜瑞石油科技有限公司 | Petroleum casing pressurizing device |
-
2007
- 2007-12-20 CN CNU2007201596296U patent/CN201137469Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147700A (en) * | 2013-04-08 | 2013-06-12 | 盘锦勇盛利石油科技开发有限公司 | Hydraulic power reversing device |
| CN104196481A (en) * | 2014-08-25 | 2014-12-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Horizontal well reversing clamping release method |
| CN104196481B (en) * | 2014-08-25 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of horizontal well back-off releasing method |
| CN107489387A (en) * | 2017-09-30 | 2017-12-19 | 山东胜利石油装备产业技术研究院 | A kind of novel hydraulic reverse buckling equipment |
| CN116498212A (en) * | 2023-03-13 | 2023-07-28 | 东营胜瑞石油科技有限公司 | Petroleum casing pressurizing device |
| CN116498212B (en) * | 2023-03-13 | 2023-09-08 | 东营胜瑞石油科技有限公司 | Petroleum casing pressurizing device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |