CN102374360B - Hydraulic drive telescopic downhole tool running device of horizontal well - Google Patents
Hydraulic drive telescopic downhole tool running device of horizontal well Download PDFInfo
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- CN102374360B CN102374360B CN 201110385740 CN201110385740A CN102374360B CN 102374360 B CN102374360 B CN 102374360B CN 201110385740 CN201110385740 CN 201110385740 CN 201110385740 A CN201110385740 A CN 201110385740A CN 102374360 B CN102374360 B CN 102374360B
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Abstract
The invention relates to a hydraulic drive telescopic downhole tool running device of a horizontal well, which is used for running in a pipeline in the horizontal well in well drilling of oil and gas fields. The invention solves the problem of downhole tool running in the horizontal well. The technical scheme of the invention is as follows: a cable is connected with a hydraulic power station through a cable connector, and the other end of the cable is connected with a motor; the hydraulic power station is connected with a rear centering mechanism, one end of a centering arm a is fixed on a running device, the other end of the centering arm a is articulated with a centering wheel a and a centering wheel b, and the other side of the centering arm b is connected with a sliding block a; the rear centering mechanism is connected with a shell of a rear locking mechanism; a locking arm a is articulated with a locking slip a and a locking arm b; the rear locking mechanism consists of a locking slip and a locking arm and is connected with a telescopic mechanism; and the front locking mechanism and the rear locking mechanism have same structure, and the front centering mechanism and the rear centering mechanism have same structure. The hydraulic drive telescopic downhole tool running device disclosed by the invention has simple mechanical system mechanism, reliable hydraulic system, high efficiency and large drive force, can realize bidirectional climbing and can reversely run for jam releasing when meeting a jam downhole.
Description
Technical field
The present invention relates to operation in a kind of pipeline that is used for the oilfield drilling horizontal well and the downhole tool instrument is sent into hydraulically driven retractable horizontal well down-hole feeder in the horizontal segment.
Technical background
In recent years, owing to adopt unique superiority of horizontal well development oil-gas reservoir, it is more and more widely used.But in the exploitation of horizontal well, there have many problems to have to be to be solved, the horizontal segment of wherein horizontal well underground work instrument being sent into horizontal well is a typical problem, can utilize the instrument self gravitation down to the shaft bottom in conventional well, in horizontal well only by external force.
By external force downhole tool is moved in horizontal segment, must design a kind of special device that can in the horizontal well pipeline, creep.Because the horizontal well down-hole has up to the pressure of tens MPas or up to 120 ° of extreme conditions such as C temperature, general drive unit is difficult to reliably working under such adverse circumstances.
The pipe crawling device that is used for ground at present is of a great variety, also is useful on the special-purpose crawl device of horizontal well operation, adopts electric type of drive operation more.No matter be used for the pipe crawling device on ground or all there is certain defective in the special-purpose crawl device of horizontal well operation, mainly show: the pipe crawling device that is used for ground, radial dimension is all bigger, can not work under adverse circumstances such as oil, water and HTHP; Adopt electricity to drive the special-purpose crawl device in down-hole, mainly contain following defective: electricity drives the special-purpose crawl device in down-hole because radial dimension is restricted the mechanical transmission structure complexity; Produce corresponding driving power by the normal pressure between crawling wheel and the inside pipe wall, run into the inner-walls of duct greasy dirt and more easily skid; Hauling speed and tractive force are restricted.
Summary of the invention
The objective of the invention is: in order to solve the send into problem of horizontal well downhole tool at horizontal segment, satisfy down-hole instrument under the heavy load situation send into or little load under the problem of sending into fast of down-hole instrument, the spy provides a kind of hydraulically driven retractable horizontal well downhole tool feeder.
In order to achieve the above object, the present invention is by the following technical solutions: a kind of hydraulically driven retractable horizontal well downhole tool feeder, and it comprises cable connector, hydraulic power station, back righting mechanism, back locking mechanism, telescoping mechanism, preceding locking mechanism, preceding righting mechanism and hydraulic system; Cable is connected with hydraulic power station by cable connector, is connected with motor by the cable of cable connector good seal, and cable includes power transmission cable and signal-transmitting cable; Use the standard screwed connection between the shell body of hydraulic power station and back righting mechanism, righting arm a one end fixes on the feeder housing with hinges fixing, the other end is connected with compound hinges with righting wheel a and righting arm b, the opposite side of righting arm b is connected with hinge with slide block a, and righting arm a, righting arm b all can be around hinge through separately; Back righting mechanism is made up of three righting wheel a, three righting arm a, three righting arm b, and three righting wheel a are in the uniform 120 ° of layouts of circumferencial direction; During installation, spring a in the back righting mechanism is in compressive state, the shell standard screwed connection of the shell of back righting mechanism and back locking mechanism, lock arm a is connected with the hinge form with cylinder barrel a, and lock arm a is connected with compound hinges with locking between slips a and the lock arm b; The other end of lock arm b is connected with the hinge form with the end of piston rod a, the end of piston rod a is equipped with spring b, during installation, spring b is in compressive state, back locking mechanism is made up of three locking slips a, three lock arm a, three lock arm b, and three locking slips a are in the uniform 120 ° of layouts of circumferencial direction; Locking slips a is hidden in the groove of cylinder barrel a when regaining; Between back locking mechanism shell body and the telescoping mechanism shell body with the standard screwed connection, telescoping mechanism is made up of cylinder barrel b, piston rod assembly, the turnover oil pipe of telescoping cylinder all is hidden in the groove of cylinder barrel b external surface, and the end of the end of piston rod assembly and cylinder barrel c is with the standard screwed connection; Before lock arm c in the locking mechanism be connected with the hinge form with the end of piston rod b, lock arm c is connected with compound hinges with locking between slips b and the lock arm d; The other end of lock arm d is connected with the hinge form with cylinder barrel c, the end of piston rod b is equipped with spring c, during installation, spring c is in compressive state, preceding locking mechanism is made up of three locking slips b, three lock arm c, three lock arm d, and three locking slips b are in the uniform 120 ° of layouts of circumferencial direction; Locking slips b is hidden in the groove of cylinder barrel c when regaining; The shell body of preceding locking mechanism shell body and preceding righting mechanism is with the standard screwed connection; Righting arm c one end of preceding righting mechanism fixes on the slide block b with hinges fixing, the other end is connected with compound hinges with righting wheel b and righting arm d, the opposite side of righting arm d is connected with hinge with the shell body of tool interface, and righting arm c, righting arm d all can be around hinge through separately; Preceding righting mechanism is made up of three righting wheel b, three righting arm c, three righting arm d, and three righting wheel b are in the uniform 120 ° of layouts of circumferencial direction; During installation, the spring d in the preceding righting mechanism is in compressive state; Righting wheel a all contacts with the borehole wall with righting wheel b; Cable connector is connected with hydraulic system.
Be provided with hydraulic system in the hydraulically driven retractable horizontal well downhole tool feeder, it comprises sealed reservoir, overflow valve, motor, hydraulic pump, sequence valve, solenoid operated directional valve, pressure switch, preceding locking cylinder, telescoping cylinder, back locking cylinder; The cross section of sealed reservoir is cylindrical, and the end of sealed reservoir has tubing interface; Hydraulic pump adopts miniature quantitative hydraulic pump, motor adopts high pressure adjustable speed direct current generator, hydraulic pump is connected by miniature bellows coupling with motor, the hydraulic pressure delivery side of pump is connected with the overflow valve inlet with sequence valve respectively, the outlet of sequence valve communicates with the oil-in of pressure switch and solenoid operated directional valve b, solenoid operated directional valve b is the two-position three way solenoid operated directional valve, and the outlet of solenoid operated directional valve b communicates with the rodless cavity of telescoping cylinder, and the telescoping cylinder rod chamber communicates with the sequence valve outlet; The hydraulic pressure delivery side of pump has an oily circulation flow path to communicate with the inlet of solenoid operated directional valve a in addition, solenoid operated directional valve a is the 3-position 4-way solenoid operated directional valve of Y type meta function, solenoid operated directional valve a exports two chambeies and is connected with the rodless cavity of preceding locking cylinder with back locking cylinder respectively, preceding locking cylinder and back locking cylinder are the single-acting hydraulic jack, and preceding locking cylinder all adopts cases of otherwise standard design with back locking cylinder;
The present invention compared with prior art, its beneficial effect is: the good stability of (1) righting mechanism, avoided rolling of device; (2) hydraulic system adopts the micro hydraulic element, and constant displacement pump and HVDC adjustable speed motor are realized Flow-rate adjustment, and hydraulic system is reliable, the system effectiveness height; (3) hydraulic driving mode, mechanical system structure is simple; (4) adopt locking slips lock collar inwall, the possibility of skidding greatly reduces, and driving force is big; The double protection functions that has motor overload protection and overflow valve overload protection when (5) overload occurring; (6) this device can be realized bidirectional creeping, but particularly meets inverted running unfreezing when blocking in the down-hole.
Description of drawings
Fig. 1 is the structural representation of a kind of hydraulically driven retractable horizontal well of the present invention downhole tool feeder;
Fig. 2 is the hydraulic scheme of this hydraulically driven retractable horizontal well downhole tool feeder;
Among the figure: 1. cable connector, 2. hydraulic power station, 3. righting arm a, 4. righting wheel a, 5. righting arm b, 6. slide block a, 7. spring a, 8. cylinder barrel a, 9. lock arm a 10. locks slips a, 11. lock arm b, 12. spring b, 13. piston rod a, 14. cylinder barrel b, 15. piston rod assemblies, 16. cylinder barrel c, 17. piston rod b, 18. lock arm c, 19. locking slips b, 20. lock arm d, 21. spring c, 22. spring d, 23. slide block b, 24. righting arm c, 25. righting wheel b, 26. righting arm d, 27. tool interfaces, 28. boreholes wall, 29. preceding righting mechanism, 30. preceding locking mechanisms, 31. telescoping mechanisms, 32. back locking mechanisms, 33. back righting mechanism, 34. cables, 35. sealed reservoirs, 36. overflow valves, 37. motor, 38. hydraulic pumps, 39. sequence valves, 40. solenoid operated directional valve a, 41. pressure switches, 42. preceding locking cylinders, 43. solenoid operated directional valve b, 44. telescoping cylinders, 45. back locking cylinders.
The specific embodiment
As shown in Figure 1, hydraulically driven retractable horizontal well downhole tool feeder of the present invention, it comprises cable connector 1, hydraulic power station 2, back righting mechanism 33, back locking mechanism 32, telescoping mechanism 31, preceding locking mechanism 30, preceding righting mechanism 29 and hydraulic system, cable 34 usefulness cable connectors 1 are connected with hydraulic power station 2, be connected with motor 37 by the cable 34 of cable connector 1 good seal, cable 34 includes power transmission cable and signal-transmitting cable, for motor provides power electricity and control signal; Use the standard screwed connection between the shell body of hydraulic power station 2 and back righting mechanism 33, righting arm a3 one end fixes on the feeder housing with hinges fixing, the other end is connected with compound hinges with righting wheel a4 and righting arm b5, the opposite side of righting arm b5 is connected with hinge with slide block a6, and righting arm a3, righting arm b5 all can be around hinge through separately; Back righting mechanism 33 is made up of three righting wheel a4, three righting arm a3, three righting arm b5, and three righting wheel a4 are in the uniform 120 ° of layouts of circumferencial direction; During installation, spring a7 in the back righting mechanism 33 is in compressive state, the shell standard screwed connection of the shell of back righting mechanism 33 and back locking mechanism 32, lock arm a9 is connected with the hinge form with cylinder barrel a8, and lock arm a9 is connected with compound hinges with locking between slips a10 and the lock arm b11; The other end of lock arm b11 is connected with the hinge form with the end of piston rod a13, the end of piston rod a13 is equipped with spring b12, during installation, spring b12 is in compressive state, back locking mechanism 32 is made up of three locking slips a10, three lock arm a9, three lock arm b11, and three locking slips a10 are in the uniform 120 ° of layouts of circumferencial direction; Locking slips a10 is hidden in the groove of cylinder barrel a8 when regaining; Between back locking mechanism 32 shell bodies and telescoping mechanism 31 shell bodies with the standard screwed connection, telescoping mechanism 31 is made up of cylinder barrel b14, piston rod assembly 15, all being hidden in the groove of cylinder barrel b14 external surface of telescoping cylinder 44 into and out of oil pipe, the end of the end of piston rod assembly 15 and cylinder barrel c16 is with the standard screwed connection; Before lock arm c18 in the locking mechanism 30 be connected with the hinge form with the end of piston rod b17, lock arm c18 is connected with compound hinges with locking between slips b19 and the lock arm d20; The other end of lock arm d20 is connected with the hinge form with cylinder barrel c16, the end of piston rod b17 is equipped with spring c21, during installation, spring c21 is in compressive state, preceding locking mechanism 30 is made up of three locking slips b19, three lock arm c18, three lock arm d20, and three locking slips b19 are in the uniform 120 ° of layouts of circumferencial direction; Locking slips b19 is hidden in the groove of cylinder barrel c16 when regaining; The shell body of preceding locking mechanism 30 shell bodies and preceding righting mechanism 29 is with the standard screwed connection; Righting arm c24 one end of preceding righting mechanism 29 fixes on the slide block b23 with hinges fixing, the other end is connected with compound hinges with righting wheel b25 and righting arm d26, the opposite side of righting arm d26 is connected with hinge with the shell body of tool interface 27, and righting arm c24, righting arm d26 all can be around hinge through separately; Preceding righting mechanism 29 is made up of three righting wheel b25, three righting arm c24, three righting arm d26, and three righting wheel b25 are in the uniform 120 ° of layouts of circumferencial direction; During installation, the spring d22 in the preceding righting mechanism 29 is in compressive state; Righting wheel a4 all contacts with the borehole wall 28 with righting wheel b25; Cable connector 1 is connected with hydraulic system
As Fig. 2, be the hydraulic system principle figure of hydraulically driven retractable horizontal well downhole tool feeder, it comprises sealed reservoir 35, overflow valve 36, motor 37, hydraulic pump 38, sequence valve 39, solenoid operated directional valve 40, pressure switch 41, preceding locking cylinder 42, telescoping cylinder 44, back locking cylinder 45; The cross section of sealed reservoir 35 is cylindrical, the end of sealed reservoir 35 has tubing interface, hydraulic pump 38 adopts miniature quantitative hydraulic pump, motor 37 adopts high pressure adjustable speed direct current generator, hydraulic pump 38 is connected by miniature bellows coupling with motor 37, the outlet of hydraulic pump 38 is connected with overflow valve 36 inlets with sequence valve 39 respectively, the outlet of sequence valve 39 communicates with the oil-in of pressure switch 41 and solenoid operated directional valve 43, solenoid operated directional valve 43 is the two-position three way solenoid operated directional valve, the outlet of solenoid operated directional valve 43 communicates with the rodless cavity of telescoping cylinder 44, and telescoping cylinder 44 rod chambers communicate with sequence valve 39 outlets; The outlet of hydraulic pump 38 has an oily circulation flow path to communicate with the inlet of solenoid operated directional valve 40 in addition, this valve is the 3-position 4-way solenoid operated directional valve of Y type meta function, solenoid operated directional valve 40 outlets two chambeies are connected with the rodless cavity of preceding locking cylinder 42 with back locking cylinder 45 respectively, before locking cylinder 42, back locking cylinder 45 be the single-acting hydraulic jack, preceding locking cylinder 42, back locking cylinder 45 all adopt cases of otherwise standard design.
Claims (2)
1. hydraulically driven retractable horizontal well downhole tool feeder, it comprises cable connector, hydraulic power station, back righting mechanism, back locking mechanism, telescoping mechanism, preceding locking mechanism, preceding righting mechanism, hydraulic system, it is characterized in that: cable (34) is connected with hydraulic power station (2) by cable connector (1), be connected with motor (37) by the cable (34) of cable connector (1) good seal, cable (34) includes power transmission cable and signal-transmitting cable; Use the standard screwed connection between the shell body of hydraulic power station (2) and back righting mechanism (33), righting arm a(3) end fixes on the feeder housing with hinges fixing, the other end and righting wheel a(4) and righting arm b(5) be connected with compound hinges, righting arm b(5) opposite side and slide block a(6) be connected righting arm a(3 with hinge), righting arm b(5) all can be around hinge through separately; Back righting mechanism (33) is by three righting wheel a(4), three righting arm a(3), three righting arm b(5) form three righting wheel a(4) at circumferencial direction uniform 120
0Layout; During installation, spring a(7 in the back righting mechanism (33)) is in compressive state, the shell standard screwed connection of the shell of back righting mechanism (33) and back locking mechanism (32), lock arm a(9) with cylinder barrel a(8) be connected lock arm a(9 with the hinge form) with locking slips a(10) and lock arm b(11) between be connected with compound hinges; Lock arm b(11) an other end and piston rod a(13) the end be connected with the hinge form, piston rod a(13) end is equipped with spring b(12), during installation, spring b(12) is in compressive state, back locking mechanism (32) is by three locking slips a(10), three lock arm a(9), three lock arm b(11) forms, three lock slips a(10) at circumferencial direction uniform 120
0Layout; Locking slips a(10) be hidden in cylinder barrel a(8 when regaining) groove in; Between back locking mechanism (32) shell body and telescoping mechanism (31) shell body with the standard screwed connection, telescoping mechanism (31) is by cylinder barrel b(14), piston rod assembly (15) forms, the turnover oil pipe of telescoping cylinder (44) all is hidden in cylinder barrel b(14) in the groove of external surface, the end of piston rod assembly (15) and cylinder barrel c(16) the end with the standard screwed connection; Before lock arm c(18 in the locking mechanism (30)) with piston rod b(17) the end be connected lock arm c(18 with the hinge form) with lock slips b(19) and lock arm d(20) between be connected with compound hinges; Lock arm d(20) an other end and cylinder barrel c(16) be connected with the hinge form, piston rod b(17) end is equipped with spring c(21), during installation, spring c(21) is in compressive state, before locking mechanism (30) by three locking slips b(19), three lock arm c(18), three lock arm d(20) forms, three lock slips b(19) at circumferencial direction uniform 120
0Layout; Locking slips b(19) be hidden in cylinder barrel c(16 when regaining) groove in; The shell body of preceding locking mechanism (30) shell body and preceding righting mechanism (29) is with the standard screwed connection; The righting arm c(24 of preceding righting mechanism (29)) end fixes on slide block b(23 with hinges fixing) on, the other end and righting wheel b(25) and righting arm d(26) be connected with compound hinges, righting arm d(26) opposite side is connected with hinge with the shell body of tool interface (27), righting arm c(24), righting arm d(26) all can be around hinge through separately; Before righting mechanism (29) by three righting wheel b(25), three righting arm c(24), three righting arm d(26) form three righting wheel b(25) at circumferencial direction uniform 120
0Layout; During installation, the spring d(22 in the preceding righting mechanism (29)) is in compressive state; Righting wheel a(4) with righting wheel b(25) all contact with the borehole wall (28); Cable connector (1) is connected with hydraulic system.
2. hydraulically driven retractable horizontal well downhole tool feeder according to claim 1 is characterized in that: above-mentioned hydraulic system comprises sealed reservoir, overflow valve, motor, hydraulic pump, sequence valve, solenoid operated directional valve, pressure switch, preceding locking cylinder, telescoping cylinder, back locking cylinder; The cross section of sealed reservoir (35) is cylindrical, and the end of sealed reservoir (35) has tubing interface; Hydraulic pump (38) adopts miniature quantitative hydraulic pump, motor (37) adopts high pressure adjustable speed direct current generator, hydraulic pump (38) is connected with miniature bellows coupling with motor (37), the outlet of hydraulic pump (38) is connected with overflow valve (36) inlet with sequence valve (39) respectively, the outlet of sequence valve (39) and pressure switch (41) and solenoid operated directional valve b(43) oil-in communicate, solenoid operated directional valve b(43) is the two-position three way solenoid operated directional valve, solenoid operated directional valve b(43) outlet communicates with the rodless cavity of telescoping cylinder (44), and telescoping cylinder (44) rod chamber communicates with sequence valve (39) outlet; The outlet of hydraulic pump (38) has an oily circulation flow path and solenoid operated directional valve a(40 in addition) inlet communicate, solenoid operated directional valve a(40) is the 3-position 4-way solenoid operated directional valve of Y type meta function, solenoid operated directional valve a(40) outlet two chambeies are connected with the rodless cavity of preceding locking cylinder (42) with back locking cylinder (45) respectively, preceding locking cylinder (42) and back locking cylinder (45) are the single-acting hydraulic jack, and preceding locking cylinder (42) and back lock cylinder (45) and all adopt cases of otherwise standard design.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110385740 CN102374360B (en) | 2011-11-29 | 2011-11-29 | Hydraulic drive telescopic downhole tool running device of horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110385740 CN102374360B (en) | 2011-11-29 | 2011-11-29 | Hydraulic drive telescopic downhole tool running device of horizontal well |
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| CN102374360A CN102374360A (en) | 2012-03-14 |
| CN102374360B true CN102374360B (en) | 2013-07-24 |
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| CN 201110385740 Expired - Fee Related CN102374360B (en) | 2011-11-29 | 2011-11-29 | Hydraulic drive telescopic downhole tool running device of horizontal well |
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| CN102374360A (en) | 2012-03-14 |
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