CN103114839B - One-way transmission type retractor used under horizontal well - Google Patents
One-way transmission type retractor used under horizontal well Download PDFInfo
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- CN103114839B CN103114839B CN201110362857.4A CN201110362857A CN103114839B CN 103114839 B CN103114839 B CN 103114839B CN 201110362857 A CN201110362857 A CN 201110362857A CN 103114839 B CN103114839 B CN 103114839B
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- tooth bar
- wedge shape
- piston
- cylinder body
- shape tooth
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Abstract
The invention relates to a one-way transmission type retractor used under a horizontal well. The one-way transmission type retractor used under the horizontal well is characterized by mainly being composed of a cylinder body (3), a left piston (5), a wedge-shaped rack (7), a one-way transmission mechanism (10), a right piston (12), a fixing block (17) and the like. The one-way transmission mechanism (10) is capable of opening to a certain degree in the radial direction under the action of the wedge-shaped rack (7). A roller (21) arranged on the one-way transmission mechanism (10) is enabled to be tightly attached to an oil pipe or the inner wall of a sleeve pipe. And then the retractor is enabled to be supported on the oil pipe or on the inner wall of the sleeve pipe and move along the oil pipe or the inner wall of the sleeve pipe. The one-way transmission type retractor used under the horizontal well is capable of smoothly, periodically and continuously dragging in the oil pipe with the same diameter or the sleeve pipe with the same diameter at equal intervals and has the advantages of being simple in structure, economical, practical, and convenient to use.
Description
Technical field:
Unidirectional driving type tractor under the present invention relates to a kind of Horizontal Well, belongs to petroleum works underground operation tool design field.
Background technology:
At present, the application of horizontal well technology is more and more extensive.But it is very difficult in the detection and underground work of horizontal well.Its main cause is the relevant position that logger and downhole tool cannot be transported to horizontal segment by traditional mode of movement, and horizontal segment is longer, and corresponding difficulty of transportation is larger.In Vertical Well and little Wells, logger and downhole tool can rely on the gravity of self to transfer to suitable operating position by hawser or wire rope, but in high angle hole and horizontal well during operation, situation is relatively more complex, self gravitation can be relied on to transfer at peupendicular hole section instrument, arrive horizontal segment and extra traction then must be relied on to pull it to advance forward.
The structure of the reciprocating traction of the many employings of domestic and international horizontal well tractor and roller driving type, power section adopts electric power and hydraulic drive usually.Wherein, reciprocating tractor need configure drafting tool more than two and synchronization action; And roller driving type tractor is often organized and need be configured 4 rollers and each roller has motor Direct driver.The common shortcoming of these two kinds of tractors is exactly complex structure, operating difficulties, can not meet the needs of current petroleum exploration and development situation very well.
Summary of the invention:
In order to overcome the deficiencies in the prior art, unidirectional driving type tractor under the object of the present invention is to provide a kind of Horizontal Well, horizontal well downhole logging instruments and downhole tool accurately arrive job position demand by the effect of tractor can be met, there is structure simple, economic and practical, feature easy to use.
The present invention realizes above-mentioned purpose by following technical solution.
Under a kind of Horizontal Well unidirectional driving type tractor structure in, be provided with: left union, left blanking cover, cylinder body, a left side tighten up nut, left piston, left piston sealing ring, wedge shape tooth bar, left Compress Spring, removable cover, one-way driving mechanism, right Compress Spring, right piston, right piston packing, the right side tighten up nut, right blanking cover, right union, fixed block, central axis hold-down nut, central axis, travelling gear, roller, pin-and-hole spring, trundle, deep-slotted chip breaker, looping pit; Cylinder body is cylindrical shape; In cylinder body, wedge shape tooth bar is installed; Wedge shape tooth bar two ends are cylindric, are conveniently connected with left piston, right piston; Centre is flat tooth bar, and one end is symmetrical up and down and parallel; The other end is up and down symmetrical and in gathering shape to flat tooth bar center gradually; In the bilateral symmetry of wedge shape tooth bar, two one-way driving mechanisms are installed; The travelling gear that about two symmetries are arranged in the one-way driving mechanism on fixed block is meshed with wedge shape tooth bar; One-way driving mechanism is made up of central axis, travelling gear, roller; Travelling gear by key connection on center shaft; Roller by interference fits connection on center shaft; One-way driving mechanism can under the effect of wedge shape tooth bar, and radial direction opens up into a certain degree, makes roller mounted thereto be close to oil pipe or internal surface of sleeve pipe, thus is supported on oil pipe or internal surface of sleeve pipe by tractor, and move along oil pipe or internal surface of sleeve pipe; Travelling gear has two symmetrical pin-and-holes, pin-and-hole spring and trundle are installed in pin-and-hole; On roller, symmetry has two sections of deep-slotted chip breakers that 90 ° of radian bands are gradient; Trundle correspondence on travelling gear is arranged in the deep-slotted chip breaker on roller; At the two ends of wedge shape tooth bar, be separately installed with left piston and right piston; Tighten up nut by a left side and right tighten up the shoulder place that left piston and right piston to be fixed on the left and right end of wedge shape tooth bar by nut; Left piston is equipped with left piston sealing ring, right piston is equipped with right piston packing; Form hydraulic cylinder by piston, wedge shape tooth bar and cylinder body, the hydraulic medium of outer end realizes hydraulic drive by the input of union; Centre position in cylinder body is provided with an opening part, and fixed block is welded on cylinder body opening part, the external surface of fixed block and the flush with outer surface of cylinder body; Fixed block is provided with upper and lower two looping pits, and the central axis in one-way driving mechanism is arranged in looping pit by central axis hold-down nut, and can move up and down in looping pit; And the roller in one-way driving mechanism is positioned at the opening part of cylinder body after installing, travelling gear is meshed with the tooth on wedge shape tooth bar; Support driving mechanism is formed by two one-way driving mechanisms, wedge shape tooth bar, fixed block and cylinder body; Two upper and lower symmetries of one-way driving mechanism are installed on the both sides of wedge shape tooth bar; One-way driving mechanism is connected with fixed block by central axis hold-down nut, realizes upper and lower movement; On the axis direction of wedge shape tooth bar, be separately installed with left Compress Spring and right Compress Spring in the left and right sides of fixed block simultaneously; In the process that wedge shape tooth bar advances, when left piston arrival collides the position of fixed block, left Compress Spring plays a cushioning effect, to weaken active force each other; During wedge shape rack retreats, right Compress Spring also plays a part same; At the left end of cylinder body, left blanking cover and left union are installed, at the right-hand member of cylinder body, right blanking cover and right union are installed, by left union and right union connecting fluid potential source.
Compared with prior art, steadily, at equal intervals periodically can draw continuously in isodiametric oil pipe or sleeve pipe, and can provide larger driving force, have structure simple, cost is low, the feature that reliability is high in the present invention.
Accompanying drawing illustrates:
Fig. 1 is general structure schematic diagram of the present invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the structural representation of wedge shape section of rack of the present invention.
Fig. 4 is the plan structure schematic diagram of Fig. 3.
Fig. 5 is the A-A section structure schematic diagram of Fig. 1.
Fig. 6 is the structural representation of one-way driving mechanism part of the present invention.
Fig. 7 is the schematic diagram of roller part in one-way driving mechanism of the present invention.
Fig. 8 is the structural representation of fixed block part of the present invention.
In the drawings: 1. left union, 2. left blanking cover, 3. cylinder body, 4. a left side tightens up nut, 5. left piston, 6. left piston sealing ring, 7. wedge shape tooth bar, 8. left Compress Spring, 9. removable cover, 10. one-way driving mechanism, 11. right Compress Springs, 12. right pistons, 13. right piston packings, 14 right sides tighten up nut, 15. right blanking covers, 16. right unions, 17. fixed blocks, 18. central axiss tighten up nut, 19. central axiss, 20. travelling gears, 21. rollers, 22. pin-and-hole springs, 23. trundles, 24. deep-slotted chip breakers, 25. looping pits.
Detailed description of the invention:
Under a kind of Horizontal Well of the present invention, unidirectional driving type tractor is by left union 1, left blanking cover 2, cylinder body 3, a left side tightens up nut 4, left piston 5, left piston sealing ring 6, wedge shape tooth bar 7, left Compress Spring 8, removable cover 9, one-way driving mechanism 10, right Compress Spring 11, right piston 12, right piston packing 13, the right side tightens up nut 14, right blanking cover 15, right union 16, fixed block 17, central axis tightens up nut 18, central axis 19, travelling gear 20, roller 21, pin-and-hole spring 22, trundle 23, deep-slotted chip breaker 24, looping pit 25 forms, the right-hand member of left union 1 and the left end of left blanking cover 2 are threaded connection, the right-hand member of left blanking cover 2 and the left end of cylinder body 3 are threaded connection, cylinder body 3 is cylindrical shape, in the left chamber of cylinder body 3, tighten up nut 4 pairs of left pistons 5 by a left side and wedge shape tooth bar 7 is fixed, adopt left piston sealing ring 6 to seal between left piston 5 and cylinder body 3, left piston sealing ring 6 is O RunddichtringO, on the axis direction of wedge shape tooth bar 7, be separately installed with left Compress Spring 8 and right Compress Spring 11 in the left and right sides of fixed block 17 simultaneously, be welded with removable cover 9 at the opening part of cylinder body 3, two one-way driving mechanism about 10 symmetries are arranged on fixed block 17, and the travelling gear 20 in one-way driving mechanism 10 is meshed with the tooth on wedge shape tooth bar 7, central axis 19 in one-way driving mechanism 10 is positioned at the looping pit 25 on fixed block 17, is positioned at the opening part of cylinder body 3 after the roller 21 in one-way driving mechanism 10 installs, travelling gear 20 in one-way driving mechanism 10 is mounted on central axis 19 by key, roller 21 is mounted on central axis 19 by interference fits, on roller 21, symmetry has the gradient deep-slotted chip breaker 24 of two sections of 90 ° of radian bands, travelling gear 20 has two symmetrical pin-and-holes, pin-and-hole spring 22 and trundle 23 are installed in pin-and-hole, trundle 23 correspondence on travelling gear 20 is arranged in the deep-slotted chip breaker 24 on roller 21, and roller 21 and travelling gear 20 realize connection for transmission by trundle 23 and pin-and-hole spring 22, in the right chamber of cylinder body 3, tighten up nut 14 by the right side be fixed right piston 12 and wedge shape tooth bar 7, adopt right piston packing 13 to seal between right piston 12 and cylinder body 3, right piston packing 13 is O RunddichtringO, during installation component, left piston 5 is loaded onto left piston sealing ring 6, right piston 12 loads onto right piston packing 13, there are the two ends of tooth that left Compress Spring 8 and right Compress Spring 11 are installed in the middle of the wedge shape tooth bar 7, then at the cylinder place, two ends of wedge shape tooth bar 7, left piston 5 and right piston 12 are installed, tighten up nut 4 and the right side with a left side respectively and tighten up nut 14 and be fixed, the parts assembled are put into cylinder body 3, and two one-way driving mechanism 10 symmetries are positioned over wedge shape tooth bar 7 inclined teeth place in the horizontal direction, be positioned at the centre of left Compress Spring 8 and right Compress Spring 11, the roller 21 in one-way driving mechanism 10 is made to be positioned at the opening part of cylinder body 3, central axis 19 in one-way driving mechanism 10 is positioned at the looping pit 25 on fixed block 17, and positions with hold-down nut 18, opening part on cylinder body 3 is welded with removable cover 9, the intrusion of environmental liquids and impurity when being used for preventing duty, to reduce the abrasion to one-way driving mechanism (10) and wedge shape tooth bar (7), extends its application life.
After the installation of cylinder body 3 inner chamber, the joining place of fixed block 17 and cylinder body 3 is welded; Finally at the left end of cylinder body 3, left blanking cover 2, left union 1 are installed, at the right-hand member of cylinder body 3, right blanking cover 15, right union 16 are installed, make it be connected with extraneous hydraulic means.
When tractor enters well original state, one-way driving mechanism 10 is positioned at the wedge-like tip position of wedge shape tooth bar 7, the roller 21 in one-way driving mechanism 10 not with oil pipe or casing-contact; When the hydraulic cylinder feed liquor of left end, wedge shape tooth bar 7 moves ahead, travelling gear 20 is driven to rotate, one-way driving mechanism 10 opens by the effect generation radial direction of wedge shape tooth bar 7 simultaneously, when travelling gear 20 is with after the parallel location contacts of wedge shape tooth bar 7,21, roller in one-way driving mechanism 10 compresses oil pipe or internal surface of sleeve pipe, and the effect being rotated through trundle 23 of travelling gear 20 drives roller 21 to rotate, thus drives tractor to move ahead; When the hydraulic cylinder feed liquor of right-hand member, wedge shape tooth bar 7 retreats, travelling gear 20 is driven to reversely rotate, due to the effect with gradient deep-slotted chip breaker 24, the rotation of travelling gear 20 does not drive roller 21 to rotate by trundle 23, therefore, roller 21 non rotating now, makes tractor in original place transfixion; And initial position got back to by the travelling gear 20 in one-way driving mechanism 10.
Replace feed liquor by hydraulic cylinder two ends, left and right, draw with making tractor gap periods and move ahead.
Claims (3)
1. a unidirectional driving type tractor under Horizontal Well, tightens up nut (4) by left union (1), left blanking cover (2), cylinder body (3), a left side, removable cover (9), the right side tightens up nut (14), right blanking cover (15), right union (16), central axis hold-down nut (18) form; It is characterized in that in its structure, be provided with left piston (5), left piston sealing ring (6), wedge shape tooth bar (7), left Compress Spring (8), one-way driving mechanism (10), right Compress Spring (11), right piston (12), right piston packing (13), fixed block (17), pin-and-hole spring (22), trundle (23), deep-slotted chip breaker (24), looping pit (25); One-way driving mechanism (10) is made up of central axis (19), travelling gear (20), roller (21); Cylinder body (3) is cylindrical shape; In cylinder body (3), wedge shape tooth bar (7) is installed; Wedge shape tooth bar (7) two ends are cylindric, are connected with left piston (5), right piston (12); The centre of wedge shape tooth bar (7) is flat tooth bar, and one end of wedge shape tooth bar (7) is symmetrical up and down and parallel; The other end of wedge shape tooth bar (7) is symmetrical up and down and in gathering shape to flat tooth bar center gradually; In the bilateral symmetry of wedge shape tooth bar (7), two one-way driving mechanisms (10) are installed; The travelling gear (20) that about two symmetries are arranged in the one-way driving mechanism (10) on fixed block (17) is meshed with wedge shape tooth bar (7); Travelling gear (20) has two symmetrical pin-and-holes, pin-and-hole spring (22) and trundle (23) are installed in pin-and-hole; The gradient deep-slotted chip breaker (24) of two sections of 90 ° of radian bands is had in the upper symmetry of roller (21); Trundle (23) correspondence on travelling gear (20) is arranged in the deep-slotted chip breaker (24) on roller (21); At the two ends of wedge shape tooth bar (7), be separately installed with left piston (5) and right piston (12); Tighten up nut (4) and the right side by a left side and tighten up the shoulder place that left piston (5) and right piston (12) to be fixed on wedge shape tooth bar (7) left and right end by nut (14); Left piston (5) is equipped with left piston sealing ring (6), right piston (12) is equipped with right piston packing (13); Centre position in cylinder body (3) is provided with an opening part, and fixed block (17) is welded on the described opening part of cylinder body, the external surface of fixed block (17) and the flush with outer surface of cylinder body (3); Fixed block (17) is provided with upper and lower two looping pits (25), central axis (19) in one-way driving mechanism (10) is arranged in looping pit (25) by central axis hold-down nut (18), and can move up and down in looping pit (25); Be positioned at the opening part of cylinder body (3) after roller (21) in one-way driving mechanism (10) installs, travelling gear (20) is meshed with the tooth on wedge shape tooth bar (7); Support driving mechanism is formed by two one-way driving mechanisms (10), wedge shape tooth bar (7), fixed block (17) and cylinder body (3); Two upper and lower symmetries of one-way driving mechanism (10) are installed on the both sides of wedge shape tooth bar (7); One-way driving mechanism (10) is connected with fixed block (17) by central axis hold-down nut (18), realizes upper and lower movement; On the axis direction of wedge shape tooth bar (7), be separately installed with left Compress Spring (8) and right Compress Spring (11) in the left and right sides of fixed block (17) simultaneously; At the left end of cylinder body (3), left blanking cover (2) and left union (1) are installed, at the right-hand member of cylinder body (3), right blanking cover (15) and right union (16) are installed.
2. unidirectional driving type tractor under a kind of Horizontal Well according to claim 1, is characterized in that travelling gear (20) is mounted on central axis (19) by key; Roller (21) is mounted on central axis (19) by interference fits.
3. unidirectional driving type tractor under a kind of Horizontal Well according to claim 2, is characterized in that left piston sealing ring (6) and right piston packing (13) are O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110362857.4A CN103114839B (en) | 2011-11-16 | 2011-11-16 | One-way transmission type retractor used under horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110362857.4A CN103114839B (en) | 2011-11-16 | 2011-11-16 | One-way transmission type retractor used under horizontal well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103114839A CN103114839A (en) | 2013-05-22 |
| CN103114839B true CN103114839B (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110362857.4A Expired - Fee Related CN103114839B (en) | 2011-11-16 | 2011-11-16 | One-way transmission type retractor used under horizontal well |
Country Status (1)
| Country | Link |
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| CN (1) | CN103114839B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO341849B1 (en) * | 2016-01-08 | 2018-02-05 | Well Conveyor As | Drawing tools used in a borehole and / or pipeline and a drive module for a drawing tool |
| CN105649561B (en) * | 2016-03-10 | 2017-10-17 | 长江大学 | A kind of coiled tubing tractor |
| CN105952403B (en) * | 2016-06-27 | 2018-10-02 | 清华大学 | Oil well cable tractor |
| CN107956434A (en) * | 2017-11-20 | 2018-04-24 | 长江大学 | A kind of new gear rack drilling machine lifter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180009A (en) * | 1991-10-28 | 1993-01-19 | William Sneed | Wireline delivery tool |
| RU2034140C1 (en) * | 1992-06-26 | 1995-04-30 | Конструкторско-Технологическое Бюро Технических Средств Бурения Скважин | Device for transportation of instruments in horizontal, upward and inclined wells |
| CN1210934A (en) * | 1997-09-05 | 1999-03-17 | 施卢默格海外有限公司 | Method and apparatus for conveying logging tool through earth formation |
| US6003606A (en) * | 1995-08-22 | 1999-12-21 | Western Well Tool, Inc. | Puller-thruster downhole tool |
| US6173787B1 (en) * | 1997-10-13 | 2001-01-16 | Institut Francais Du Petrole | Method and system intended for measurements in a horizontal pipe |
| RU2175374C1 (en) * | 2000-04-27 | 2001-10-27 | Общество с ограниченной ответственностью "Кубаньгазпром" | Device for delivery of instruments into horizontal well |
| CN1605709A (en) * | 2003-10-08 | 2005-04-13 | 刘凡 | Down-hole traction apparatus for directional or horizontal well |
| RU2378487C2 (en) * | 2007-02-22 | 2010-01-10 | Общество с ограниченной ответственностью "Кубаньгазпром" | Device for delivering tools to horizontal well |
-
2011
- 2011-11-16 CN CN201110362857.4A patent/CN103114839B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180009A (en) * | 1991-10-28 | 1993-01-19 | William Sneed | Wireline delivery tool |
| RU2034140C1 (en) * | 1992-06-26 | 1995-04-30 | Конструкторско-Технологическое Бюро Технических Средств Бурения Скважин | Device for transportation of instruments in horizontal, upward and inclined wells |
| US6003606A (en) * | 1995-08-22 | 1999-12-21 | Western Well Tool, Inc. | Puller-thruster downhole tool |
| CN1210934A (en) * | 1997-09-05 | 1999-03-17 | 施卢默格海外有限公司 | Method and apparatus for conveying logging tool through earth formation |
| US6173787B1 (en) * | 1997-10-13 | 2001-01-16 | Institut Francais Du Petrole | Method and system intended for measurements in a horizontal pipe |
| RU2175374C1 (en) * | 2000-04-27 | 2001-10-27 | Общество с ограниченной ответственностью "Кубаньгазпром" | Device for delivery of instruments into horizontal well |
| CN1605709A (en) * | 2003-10-08 | 2005-04-13 | 刘凡 | Down-hole traction apparatus for directional or horizontal well |
| RU2378487C2 (en) * | 2007-02-22 | 2010-01-10 | Общество с ограниченной ответственностью "Кубаньгазпром" | Device for delivering tools to horizontal well |
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| Publication number | Publication date |
|---|---|
| CN103114839A (en) | 2013-05-22 |
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