CN2224912Y - Hydraulic pipe withdrawing apparatus for pipes in wells - Google Patents
Hydraulic pipe withdrawing apparatus for pipes in wells Download PDFInfo
- Publication number
- CN2224912Y CN2224912Y CN 95239955 CN95239955U CN2224912Y CN 2224912 Y CN2224912 Y CN 2224912Y CN 95239955 CN95239955 CN 95239955 CN 95239955 U CN95239955 U CN 95239955U CN 2224912 Y CN2224912 Y CN 2224912Y
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- cross beam
- slips
- hole
- fixed cross
- sleeve pipe
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Abstract
The utility model discloses a hydraulic pipe withdrawing machine for sleeve pipes in wells of oil fields, which is called as a hydraulic pipe withdrawing machine in short. A machine frame 1 of the utility model is provided with a fixed cross beam 5, both sides of the fixed cross beam are respectively provided with an oil cylinder 3, a piston rod 4 of the oil cylinder 3 is connected with both sides of a movable cross beam 2, and the middle parts of the fixed cross beam 5 and the movable cross beam 2 are respectively provided with a tapered through hole 7 and are respectively provided with pipe clamping devices 8 with the same structure for pipes. The utility model has simple structure and convenient operation, can make a withdrawn sleeve pipe stretched always during withdrawing the sleeve pipe and is suitable for withdrawing and disassembling waste sleeve pipes in deep buried wells (exploratory wells, producing wells, water injection wells, etc.).
Description
The utility model relates to an oil field well puller, is mainly used in to pull out the discarded sleeve pipe that unloads by under the buried well (exploratory well, producing well, water injection well).
Usually pull out the apparatus that unloads pipeline and form, pulled out that to unload workpiece be not very long by draw-gear and clamp mechanism, draw-gear pulling clamp mechanism, clamp mechanism pulling workpiece can be finished tube drawing.But this drawbench can not pull out continuously and unload the buried sleeve pipe that 2000～5000m are grown in drilling well.If disposablely pull out that to unload the sleeve pipe stroke very long, then the draw-gear traffic altitude increases, and the complete machine cost is with highly increasing correspondingly increase; Unload the stroke weak point if pull out, then need to change button (unclamp and pulled out sleeve pipe, clamp again in new position and pulled out sleeve pipe), when changing button, pulled out tractive force disappearance on the sleeve pipe, be in the extended state sleeve pipe and have the elastic elongation of recovery and the down-hole of withdrawing rapidly.Usually, length is that sleeve pipe about 2000 meters is pulling out when unloading its elastic elongation greater than 1.5 meters.For these reasons, at present, still there are thousands of mouthfuls of disused wells in each oil field of China, and its sleeve pipe is stranded in the down-hole for a long time, only with the North China Oilfield area nearly thousand mouthfuls in sleeve pipe disused well is just arranged.
The purpose of this utility model provides a kind of oilfield downhole casing hydraulic pipe drawing machine (hereinafter to be referred as the hydraulic pipe drawing machine), and it can intermittently ceaselessly pull out and unloads down-hole casing, can make easily again to be pulled out the sleeve pipe that unloads keep extended state when changing button.
For realizing the purpose of foregoing invention, hydraulic pipe drawing machine of the present utility model adopts following technical proposals to be achieved, it is by frame 1, two oil cylinders 3, moved cross beam 2, fixed cross beam 5, clamp device 8 is formed, motionless fixed cross beam 5 is housed on the frame 1, an oil cylinder 3 is equipped with on fixed cross beam 5 both sides respectively, piston rod 4 tops of its oil cylinder 3 connect with the both sides of moved cross beam 2 respectively, have circular cone through hole 7 at above-mentioned fixed cross beam 5 and moved cross beam 2 middle parts, its taper angle β=5 °～15 °, and the identical clamp device 8 of structure is set respectively, the clamp device is by slips 9, annulus 10, radially slide bar 11, vertical pole 12, stage clip 13 is formed, one group of slips 9 equably distributes on the conical surface of circular cone through hole 7, slips 9 lateral surface taperings are identical with the tapering of its circular cone through hole 7, have one group of radially strip slide opening 15 and one group of fastener hole 16 on the annulus 10 equably, radially slide bar 11 1 end convex shoulders place radially strip slide opening 15 tops of annulus 10, its other end passes radially, and strip slide opening 15 is fixedly connected with slips respectively, the fastener hole 16 of vertical pole 12 1 ends and annulus 10 is fixedly connected, its other end passes the ladder hole 17 on the moved cross beam 2 (perhaps fixed cross beam 5) and is contained in stage clip 13 in the ladder hole 17, stage clip 13 1 ends head on moved cross beam 2 (or fixed cross beam 5), and its other end heads on vertical pole 12 lower flange.
Every group of slips 9 of the clamp device 8 that two structures of above-mentioned hydraulic pipe drawing machine are identical is at least 3, and its inside wall 18 is concavo-convex zigzag, and inside wall 18 lower openings places are to extending out enlarging angle α=5 °～15 °.
Because the hydraulic pipe drawing machine that provides of the utility model adopts on moved cross beam 2 and the fixed cross beam 5 the identical clamp device 8 of structure is set respectively, when its tube drawing, two oil cylinders 3 promote to move on the moved cross beam 2 synchronously, make its circular cone through hole 7 internal slips 9 gripping sleeves, sleeve pipe moves up together along with moved cross beam 5 and extracts ground.Meanwhile, fixed cross beam 5 female cone through holes 7 internal slips 9 are moved on the sleeve pipe and unclamp sleeve pipe along with pulling out.When oil cylinder was shifted the top return onto, moved cross beam 2 moved down, and made moved cross beam circular cone through hole 7 internal slips 9 unclamp sleeve pipe.Meanwhile, when the quilt that is in extended state pulled out sleeve pipe and contracts down immediately, fixed cross beam circular cone through hole 7 internal slips 9 were subjected to the effect of the power that contracts under the sleeve pipe, and gripping sleeve stops sleeve pipe to continue to contract toward the down-hole immediately.After moved cross beam 2 turns back to original position, move on again and clamp the sleeve pipe that is in extended state once more, continue to pull out and unload sleeve pipe.Go round and begin again like this, until extracting the whole sleeve pipes in down-hole.Because the slips 9 inside wall lower openings places of clamp device 8 to extending out, can enter the joint (its diameter backs down slips 9 greater than casing diameter) that is pulled out sleeve pipe smoothly or by slips, assurance hydraulic pipe drawing machine pulls out continuously and unloads.This machine is simple in structure, and is easy to operate, is applicable to that recovery for a long time by buried alloy steel sleeve pipe in the down-hole, has very big economic benefit and social benefit.
Fig. 1 is a hydraulic pipe drawing machine structural representation;
Fig. 2 is moved cross beam 2 among Fig. 1 (or fixed cross beam a 5) clamp device sectional view;
Fig. 3 is one group of slips structural representation of clamp device 8 among Fig. 2;
Fig. 4 is the circular ring structure schematic diagram of clamp device 8 among Fig. 2;
Fig. 5 is the local enlarged diagram of the slips inside wall of clamp device 8 among Fig. 2.
Now the utility model is described in further detail in conjunction with the accompanying drawings and embodiments.
Pull out unload down-hole casing before, utilize the well logging demolition set to locate sleeve pipe is carried out explosion in down-hole appropriate depth (as 2000 meters), sleeve pipe blown up at this place or exploded loose casing joint.The hydraulic pipe drawing machine is contained on the raised platform around a well to be aimed at well head and fixes.Lever up this machine moved cross beam 2 (or fixed cross beam 5) with instrument and go up annulus 10, annulus 10 passes through radially, and slide bar 11 drives its slips 9, slips 9 is upwards sliding at the conical surface of the circular cone through hole 7 (taper angle β is 5 °～15 °) of moved cross beam 2 (perhaps fixed cross beam 5), just can unplug slips 9, use and pass slips 9 from top to bottom with the sleeve pipe of the same size in down-hole and connect with the sleeve pipe to be pulled out of well head.Put down the annulus 10 on the moved cross beam 2 (perhaps fixed cross beam 5), vertical pole 12 on the annulus 10 is subjected to spring 13 downward pulling force, the one group of slips 9 that links with annulus 10 also glides along the conical surface of going up circular cone through hole 7 at moved cross beam 2 (perhaps fixed cross beam 5), makes slips 9 radially hold sleeve pipe tightly.At this moment, 9 pairs of sleeve pipes of slips have the power of holding tightly of giving.
The pressure oil of fluid power system enters oil cylinder 3 cavity of resorptions respectively, oil cylinder 3 epicoele oil returns, two oil cylinder 3 inner piston rods 4 promote moved cross beam 2 respectively synchronously and move up, and the power of holding tightly is given in the 9 pairs of sleeve pipes existence of one group of slips that are contained in moved cross beam 2 middle parts, and its hysteresis moved cross beam 2 moves upward.Do to slide relatively in the circular cone through hole 7 of moved cross beam 2, force slips 9 radial contraction, slips is held sleeve pipe tightly, makes slips 9 and sleeve pipe not have relative slip and moves upward with moved cross beam 2.At this moment, fixed cross beam 5 circular cone through holes 7 internal slips 9 are also embraced sleeve pipe giving holding tightly under the power effect, follow to be pulled out sleeve pipe and move up, the male cone (strobilus masculinus) of slips 9 leaves the conical surface of the circular cone through hole 7 of fixed cross beam 5, slips 9 just loses radially holds power tightly, unclamps and is pulled out sleeve pipe, and sleeve pipe can slide in slips 9.Stroke of two oil cylinder 3 inner piston rods, 4 synchronous operations, sleeve pipe is pulled out haul distance of well face.Operating hydraulically operated drive system hydraulicdirectional control valve, hydraulic oil is from the 3 epicoele oil-feeds of two oil cylinders, cavity of resorption oil return in two oil cylinders 3, pulling moved cross beam 2 declines synchronously of two oil cylinder 3 piston rods 4, because there is the power of holding tightly of giving in 9 pairs of sleeve pipes of slips in the moved cross beam 2, slips 9 is embraced sleeve pipe hysteresis moved cross beam 2 and is descended, the conical surface of slips 9 male cone (strobilus masculinus)s and moved cross beam 2 female cone through holes 7 breaks away from, slips 9 just loses radially holds power tightly, unclamps sleeve pipe, and slips 9 is along with moved cross beam 2 glides along sleeve pipe.Meanwhile, there is the power of holding tightly of giving in 9 pairs of sleeve pipes of one group of slips in the motionless fixed cross beam 5, the sleeve pipe that is in the state of being stretched produce to recover elastic elongation and bounces back, the slips 9 that sleeve pipe is embraced in drive glides at the conical surface of fixed cross beam 5 female cone through holes 7, the conical surface of fixed cross beam 5 female cone through holes 7 produces the bigger power of radially holding tightly to slips 9, sleeve pipe is embraced, stoped the cannula retraction down-hole immediately, pulled out sleeve pipe to keep extended state.When moved cross beam 2 returned to original position, fluid power system changed pressure oil and flows to, and repeated above-mentioned tube drawing action, the clamp device 8 of moved cross beam 2 clamps the sleeve pipe that is in extended state once more, continue to pull out and unload sleeve pipe, the circulation that so goes round and begins again is all extracted ground up to sleeve pipe.
During hydraulic pipe drawing machine tube drawing, casing joint runs into slips 9 and just can be along slips 9 lower openings places backs down slips 9 to the inwall 18 that extends out (angle [alpha]=5 °～15 °), and slips 9 moves upward simultaneously, can do radial motion.Casing joint all can enter smoothly or by slips 9 inside walls 18, save (every joint is about 10 meters～15 meters, and down-hole casing is formed with the joint connection by the more piece short tube usually) when sleeve pipe is pulled out one, and releasable joint is unloaded setting of casing, transports, and continues tube drawing.
Claims (2)
1, a kind of oilfield downhole casing hydraulic pipe drawing machine, it is by frame (1), two oil cylinders (3), moved cross beam (2), fixed cross beam (5), two clamp devices (8) are formed, motionless fixed cross beam (5) is housed on the frame (1), an oil cylinder (3) is equipped with on fixed cross beam (5) both sides respectively, the piston rod (4) of its oil cylinder (3) connects with moved cross beam (2) both sides respectively, it is characterized in that: the middle part at above-mentioned moved cross beam (2) and fixed cross beam (5) has a circular cone through hole (7), its taper angle is β=5 °～15 °, and the identical clamp device (8) of structure is set respectively, clamp device (8) is by slips (9), annulus (10), slide bar (11) radially, vertical pole (12), stage clip (13) is formed, one group of slips (9) equably distributes on the conical surface of circular cone through hole (7), slips (9) lateral surface tapering is identical with the tapering of its circular cone through hole (7), have one group of radially strip slide opening (15) and one group of fastener hole (16) on the annulus (10) equably, radially slide bar (11) one end convex shoulders place radially strip slide opening (15) top of annulus (10), its other end passes radially, and strip slide opening (15) is fixedly connected with slips (9) respectively, the fastener hole (16) of vertical pole (12) one ends and annulus (10) is fixedly connected, its other end passes moved cross beam (2) or fixed cross beam (5) is gone up ladder hole (17) and is contained in the interior stage clip (13) of ladder hole (17), stage clip (13) one ends head on moved cross beam (2) or fixed cross beam (5), and its other end heads on vertical pole (12) lower flange.
2, the aboveground sleeve pipe hydraulic pipe drawing in oil field according to claim 1 machine, it is characterized in that: every group of slips of the clamp device (8) that above-mentioned two structures are identical is at least 3, its inside wall (18) is concavo-convex zigzag, inside wall (18) lower openings place is to extending out, and the enlarging angle is (=5 °～15 ° of α.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239955 CN2224912Y (en) | 1995-06-15 | 1995-06-15 | Hydraulic pipe withdrawing apparatus for pipes in wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239955 CN2224912Y (en) | 1995-06-15 | 1995-06-15 | Hydraulic pipe withdrawing apparatus for pipes in wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224912Y true CN2224912Y (en) | 1996-04-17 |
Family
ID=33881634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95239955 Expired - Fee Related CN2224912Y (en) | 1995-06-15 | 1995-06-15 | Hydraulic pipe withdrawing apparatus for pipes in wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224912Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182188A (en) * | 2011-05-24 | 2011-09-14 | 中国一冶集团有限公司 | Full hydraulic static pulling machine and method of underground diaphragm wall joint pipe |
| CN102561968A (en) * | 2012-02-29 | 2012-07-11 | 中国地质装备总公司 | Large-tonnage continuous tube drawing bench |
| CN102839928A (en) * | 2012-10-10 | 2012-12-26 | 松原市前进石油工程机械有限公司 | Continuous up-and-down method of pipe column of oil field mine and dual-traveling slip device |
| CN103924979A (en) * | 2014-04-30 | 2014-07-16 | 中煤邯郸特殊凿井有限公司 | Frozen liquid supply pipe pulling device |
| CN108316874A (en) * | 2018-02-09 | 2018-07-24 | 泸州长江工程机械成套有限公司 | A kind of all-hydraulic sleeve in oil field automatically takes out machine |
| CN109707331A (en) * | 2019-02-24 | 2019-05-03 | 柳州市达姆预应力机械有限公司 | A kind of controlling auto pipe-extractor |
-
1995
- 1995-06-15 CN CN 95239955 patent/CN2224912Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182188A (en) * | 2011-05-24 | 2011-09-14 | 中国一冶集团有限公司 | Full hydraulic static pulling machine and method of underground diaphragm wall joint pipe |
| CN102182188B (en) * | 2011-05-24 | 2013-02-27 | 中国一冶集团有限公司 | Full hydraulic static pulling machine and method of underground diaphragm wall joint pipe |
| CN102561968A (en) * | 2012-02-29 | 2012-07-11 | 中国地质装备总公司 | Large-tonnage continuous tube drawing bench |
| CN102839928A (en) * | 2012-10-10 | 2012-12-26 | 松原市前进石油工程机械有限公司 | Continuous up-and-down method of pipe column of oil field mine and dual-traveling slip device |
| WO2014056409A1 (en) * | 2012-10-10 | 2014-04-17 | 松原市前进石油工程机械有限公司 | Method of continuously raising and lowering oilfield shaft drillstring and twin travelling slips apparatus |
| CN103924979A (en) * | 2014-04-30 | 2014-07-16 | 中煤邯郸特殊凿井有限公司 | Frozen liquid supply pipe pulling device |
| CN108316874A (en) * | 2018-02-09 | 2018-07-24 | 泸州长江工程机械成套有限公司 | A kind of all-hydraulic sleeve in oil field automatically takes out machine |
| CN109707331A (en) * | 2019-02-24 | 2019-05-03 | 柳州市达姆预应力机械有限公司 | A kind of controlling auto pipe-extractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |