CN2707943Y - Rotational off-hand proof hanger - Google Patents
Rotational off-hand proof hanger Download PDFInfo
- Publication number
- CN2707943Y CN2707943Y CN 200420029162 CN200420029162U CN2707943Y CN 2707943 Y CN2707943 Y CN 2707943Y CN 200420029162 CN200420029162 CN 200420029162 CN 200420029162 U CN200420029162 U CN 200420029162U CN 2707943 Y CN2707943 Y CN 2707943Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- fluid cylinder
- cone pipe
- piston
- guiding valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a hanger for preventing rotation and separation from hands, which comprises a hanging device and an inward advancing tool, wherein, the inward advancing tool comprises a connecting device, a rotation prevention device, and a pressure holding circulating device that are connected together in turn. The utility model has the advantages of capability of rotational drilling, circulatory well cleanup, and capability of preventing rotation and separation from hands and dropping into the well.
Description
Technical field
The utility model belongs to a kind of oil well sidetracking instrument, particularly a kind of anti-rotation hanger of slipping out of the hand.
Background technology
At present mostly the hanger of oil field sidetracking is just to change to put aside, but in the process of going into the well, often because of drilling rod well just then hanger slips out of the hand midway, and bad control well cementation mortar amount, and be hampered, hanger can not rotate and creep into, so that can not descend desired depth. midway
Summary of the invention
The purpose of this utility model provides a kind of anti-rotation hanger of slipping out of the hand, and it has overcome above-mentioned defective, and it can rotate and creep into, and can prevent to rotate the well of slipping out of the hand again.
The technical solution of the utility model is: a kind of anti-rotation hanger of slipping out of the hand, and it is characterized in that: it comprises hanger and running tool, and said apparatus connects successively;
Said hanger comprises horn mouth, the cone pipe, slips, screw, slip spider, the gingival cyst of mucous gland in the newborn ring, seal, following fluid cylinder, lower piston, horn mouth is connected with the cone pipe, keyway is arranged in the horn mouth, the cone pipe has the axial bond groove, cone pipe bottom is connected with lower piston, and sealing is arranged, be enclosed between the following fluid cylinder of lower piston and lower piston and the cone pipe seal is all arranged, and screw control is arranged between following fluid cylinder and the lower piston, the slip spider bottom is connected with following fluid cylinder, and the gingival cyst of mucous gland in the newborn ring is controlled between slip spider bottom taper hole and the following fluid cylinder, the interior pawl on the gingival cyst of mucous gland in the newborn ring is corresponding with the outer pawl of cone pipe simultaneously, and slip spider top is fixed with slips;
Said running tool comprises linkage, anti-rotation device and the circulating device that builds the pressure, and said apparatus connects successively, can select following scheme:
A, said linkage comprise joint, piston, intervalve, and the upper and lower side of piston is connected with intervalve with joint respectively, and the seal sealing is arranged, and intervalve is connected with horn mouth;
Said anti-rotation device comprises fluid cylinder, tapered end, screw, tapered end and fluid cylinder bottom are in succession, and by screw on piston, keyway is arranged at the piston bottom, and the key of some protrusions is arranged under the tapered end, and this key internal and external parts is inserted in respectively in the keyway of the piston outside, horn mouth inboard, fluid cylinder top inner convex platform is enclosed within on the path of piston top, and hang on its big footpath step, seal is all arranged between the two, the piston perforation is communicated with the fluid cylinder inner chamber;
The said circulating device that builds the pressure comprises sliding sleeve, guiding valve, steel ball and screw, sliding sleeve is connected with intervalve, and the seal sealing is arranged at the bottom, sliding sleeve has the inside and outside eyelet that is communicated with, guiding valve is housed in the sliding sleeve, the flexible pawl in guiding valve top is inserted in the endoporus of intervalve, and guiding valve is controlled on the intervalve by screw, the guiding valve that is positioned at place, the big footpath of sliding sleeve has outer lug boss, ball seat is arranged at its bottom, and steel ball is arranged on the ball seat, and the guiding valve of ball seat top has interior accessibke porosity, this through hole is corresponding with the sliding sleeve through hole, the sliding sleeve through hole is corresponding with the cone pipe through-hole, and there is one group of seal guiding valve through hole below, and there are two groups of seals the top;
Said horn mouth has inside and outside that be communicated with and protrude the corresponding keyway of key with tapered end.
B, said linkage comprise joint, piston, intervalve and sliding sleeve, and the upper and lower side of piston is connected with intervalve with joint respectively, and the seal sealing is arranged, and intervalve one end is connected with sliding sleeve, and the seal sealing is arranged;
Said anti-rotation device comprises separates tube sealing, fluid cylinder, lock dog, screw, separating the tube sealing top is connected with fluid cylinder, the below is inserted in the sliding sleeve, outwards props up lock dog, and radial slot is arranged on the sliding sleeve, the interior lock dog outside of radial slot that is contained in sliding sleeve is inserted in the axial bond groove of cone pipe, the lock dog outside all has chamfering up and down, and horn mouth is connected with the cone pipe, and lock dog is controlled, on horn mouth, horn mouth and cone Guan Jun have and the lock dog outside corresponding taper hole of chamfering up and down screw with the deblocking management and control;
The said circulating device that builds the pressure comprises sliding sleeve, screw, guiding valve and steel ball, sliding sleeve has inside and outside that be communicated with and the corresponding eyelet of cone pipe through-hole, eyelet has seal up and down and between the cone pipe, guiding valve is housed in the sliding sleeve, guiding valve is controlled at the intervalve bottom by screw, ball seat is arranged at the bottom of guiding valve, the guiding valve of ball seat top has interior accessibke porosity, this through hole is corresponding with the sliding sleeve through hole, the radially inside and outside open-work that is communicated with is arranged on the sliding sleeve barrel of ball seat below, and sliding sleeve bottom internal diameter there is steel ball less than the guiding valve external diameter above the ball seat, there is one group of seal guiding valve through hole below, and there are two groups of seals the top.
There is screw thread said horn mouth below, and there is the axial bond groove screw thread top, and the keyway top has and the outer corresponding conical surface of chamfering of lock dog, and cone pipe top has and the outer corresponding conical surface of chamfering of lock dog, and lock dog is controlled in horn mouth and the screwed connection of cone pipe.
The utlity model has following advantage: can rotate and creep into, circulation well cleanup can prevent to rotate the well of slipping out of the hand again.
Description of drawings
Accompanying drawing 1 the utility model structural representation.
Accompanying drawing 2 is A-A schematic diagrames of Fig. 1.
Accompanying drawing 3 is B-B schematic diagrames of Fig. 1.
Accompanying drawing 4 is C-C schematic diagrames of Fig. 1.
Accompanying drawing 5 is parts partial enlarged drawings.
Accompanying drawing 6 is parts partial enlarged drawings.
Accompanying drawing 7 is anti-rotation device partial schematic diagrams.
Accompanying drawing 8 is D-D schematic diagrames of Fig. 7.
Accompanying drawing 9 is the utility model scheme 2 structural representations.
Accompanying drawing 10 is A-A schematic diagrames of Fig. 9.
Accompanying drawing 11 is another structural representations of the utility model scheme 2.
The specific embodiment
Embodiment 1:(is as Fig. 1--shown in 6) and a kind of anti-rotation hanger of slipping out of the hand, it is characterized in that: it comprises hanger 2 and running tool 1, and said apparatus connects successively;
Said hanger 2 comprises horn mouth 13, cone pipe 15, slips 16, screw 11, slip spider 26, gingival cyst of mucous gland in the newborn ring 27, seal 7, following fluid cylinder 29, lower piston 31, horn mouth 13 is connected with cone pipe 15, in the horn mouth 13 keyway is arranged, cone pipe 15 has the axial bond groove, cone pipe 15 bottoms are connected with lower piston 31, and sealing is arranged, be enclosed between the following fluid cylinder 29 of lower piston 31 and lower piston 31 and the cone pipe 15 seal 7 is all arranged, and screw 11 controls are arranged between following fluid cylinder 29 and the lower piston 31, slip spider 26 bottoms are connected with following fluid cylinder 29, and gingival cyst of mucous gland in the newborn ring 27 is controlled between slip spider 26 bottom taper holes and the following fluid cylinder 29, interior pawl on the gingival cyst of mucous gland in the newborn ring 27 is corresponding with the outer pawl 19 of cone pipe 15 simultaneously, and slip spider 26 tops are fixed with slips 16;
Said running tool 1 comprises linkage 3, anti-rotation device 4 and the circulating device 5 that builds the pressure, and said apparatus connects successively,
Said linkage 3 comprises joint 6, piston 8, intervalve 14, and the upper and lower side of piston 8 is connected with intervalve 14 with joint 6 respectively, and seal 7 sealings are arranged, and intervalve 14 is connected with horn mouth 13;
Said anti-rotation device 4 comprises fluid cylinder 9, tapered end 12, screw 11, tapered end 12 is connected with fluid cylinder 9 bottoms, and be fixed on the piston 8 by screw 11, keyway is arranged at piston 8 bottoms, and tapered end has the key 17 of some protrusions for 12 times, and this key internal and external parts is inserted in respectively in the keyway of piston 8 outsides, horn mouth 13 inboards, fluid cylinder 9 top inner convex platforms are enclosed within on the path of piston 8 tops, and hang on its big footpath step, seal 7 is all arranged between the two, piston 8 perforations 10 are communicated with fluid cylinder 9 inner chambers;
The said circulating device 5 that builds the pressure comprises sliding sleeve 20, guiding valve 23, steel ball 30 and screw 11, sliding sleeve 20 is connected with intervalve 14, and seal 7 sealings are arranged at the bottom, sliding sleeve 20 has the inside and outside eyelet 25 that is communicated with, guiding valve 23 is housed in the sliding sleeve 20, the flexible pawl 18 in guiding valve 23 tops, be inserted in the endoporus of intervalve 14, guiding valve 23 is controlled on the intervalve 14 by screw 11, the guiding valve 23 that is positioned at place, sliding sleeve 20 big footpath has outer lug boss 21, ball seat 35 is arranged at its bottom, and there is steel ball 30 the ball seat top, and the guiding valve 23 of ball seat top has interior accessibke porosity 24, this through hole 24 is corresponding with sliding sleeve through hole 25, sliding sleeve through hole 25 is corresponding with cone pipe through-hole 28, and there is one group of seal 7 guiding valve through hole 24 belows, and there are two groups of seals 22 top; Cutting off screw when guiding valve moves down, when the guiding valve outer lug boss is blocked by the sliding sleeve inner convex platform, and guiding valve top elastic claw withdraws from from intervalve and opens, withstand on intervalve bottom can not on move, the last two groups of seals in top are just in time sealed the through hole of sliding sleeve again, and the through hole of guiding valve communicates with the sliding sleeve cavity of resorption simultaneously;
(shown in Fig. 7-8) said horn mouth 13 has inside and outside that be communicated with and protrude the corresponding keyway of key 17 with tapered end 12.
Operating principle: after the throwing steel ball is sitting on the ball seat, suppress in the pipe string, fluid pressure passes through guiding valve, sliding sleeve, the connection eyelet of cone pipe, enter down in the fluid cylinder working chamber, fluid cylinder is cut off down the control screw between fluid cylinder and the lower piston under promoting, continue to promote the gingival cyst of mucous gland in the newborn ring, slip spider, slips is up, under the effect of the cone pipe conical surface, slips outwards rises greatly, be stuck on the internal surface of sleeve pipe, the pawl interlock in the internal tooth of gingival cyst of mucous gland in the newborn ring and the cone pipe outside, taper hole is arranged at the slip spider bottom, when it retreats, make tighter that gingival cyst of mucous gland in the newborn ring and cone pipe embrace, and can not continue descending, so just can guarantee that the permanent grappling of hanger is motionless, in getting to the certain pressure process, fluid pressure promotes fluid cylinder simultaneously, tapered end is up, cut off the screw between tapered end and the piston, continue uply, the key that piston and horn mouth protrude on the tapered end is in relative rotation withdrawed from from bell-mouthed axial bond groove, this is with regard to the rotatable tube string, make left-hand thread disengaging between intervalve and the horn mouth, and the separation of slipping out of the hand continues to boost, and screw is cut off between guiding valve and the intervalve, guiding valve is descending, the outer lug boss of guiding valve hangs on the inner convex platform of sliding sleeve pipe, and at this moment, the two groups of seals in guiding valve top are just in time sealed the radial direction through hole of sliding sleeve up and down, guarantee that running tool trips out from hanger after, still can make liquid from sliding sleeve pipe bottom circulation squeeze note mortar or circulation well cleanup.
Embodiment 2:(is as Fig. 9--shown in 10) and a kind of anti-rotation hanger of slipping out of the hand, it is characterized in that: it comprises hanger 2 and running tool 1, and said apparatus connects successively;
Said hanger 2 is identical with embodiment 1 described hanger;
Said running tool 1 comprises linkage 3, anti-rotation device 4 and the circulating device 5 that builds the pressure, and said apparatus connects successively,
Said linkage 3 comprises joint 6, piston 8, intervalve 14 and sliding sleeve 20, and the upper and lower side of piston 8 is connected with intervalve 14 with joint 6 respectively, and seal 7 sealings are arranged, and intervalve 14 1 ends are connected with sliding sleeve 20, and seal 7 sealings are arranged;
Said anti-rotation device 4 comprises separates tube sealing 32, fluid cylinder 9, lock dog 33, screw 11, separating tube sealing 32 tops is connected with fluid cylinder 9, the below is inserted in the sliding sleeve 20, outwards prop up lock dog 33, on the sliding sleeve 20 radial slot is arranged, interior lock dog 33 outsides of radial slot that are contained in sliding sleeve 20 are inserted in the axial bond groove of cone pipe 15, lock dog 33 outsides all have chamfering up and down, horn mouth 13 is connected with cone pipe 15, lock dog 33 is controlled, screw 11 will be separated tube sealing 32 and be controlled on the horn mouth 13, and horn mouth 13 and cone pipe 15 all have and the lock dog 33 outsides corresponding taper hole of chamfering up and down;
The said circulating device 5 that builds the pressure comprises sliding sleeve 20, screw 11, guiding valve 23 and steel ball 30, sliding sleeve 20 has inside and outside that be communicated with and the corresponding eyelet 28 of cone pipe 15 through holes, eyelet has seal 7 about in the of 28 and between the cone pipe 15, guiding valve 23 is housed in the sliding sleeve 20, guiding valve 23 is controlled at intervalve 14 bottoms by screw 11, interior accessibke porosity 24 is arranged at the bottom of the guiding valve 23 of ball seat 35 tops, this through hole is corresponding with sliding sleeve through hole 25, the radially inside and outside open-work 34 that is communicated with is arranged on sliding sleeve 20 walls of ball seat 35 belows, and sliding sleeve 20 bottom internal diameters are less than guiding valve 23 external diameters, there is steel ball 30 ball seat 35 tops, there is one group of seal 7 guiding valve through hole 24 belows, and there are two groups of seals 22 top.
There is screw thread (shown in Figure 11-12) said horn mouth 13 belows, there is the axial bond groove screw thread top, and the keyway top has and the corresponding conical surface of lock dog 33 outer chamferings, and cone pipe 15 tops have and the corresponding conical surface of lock dog 33 outer chamferings, horn mouth 13 and 15 screwed connections of cone pipe are controlled lock dog 33.
Operating principle: the operating principle of hanger is with the A scheme, it is because the lock dog outside on the sliding sleeve is inserted in the axial bond groove of horn mouth endoporus that running tool separates with hanger, the lock dog outside up and down by with horn mouth that cone is connected under the last chamfering of chamfering and cone pipe block, the inboard is lived by the deblocking tube stay, inactive, so it can bearing load, can not slip out of the hand when transferring because of just changeing yet, after this hanger seat is hung, last fluid cylinder drives under hydraulic action to be separated tube sealing and cuts off screw between it and the horn mouth, move in the continuation, break away from lock dog, under chamfering on the lock dog and bell-mouthed inner conical surface effect, the lock dog external diameter is little of also littler than bell-mouthed internal diameter, drilling rod can drive joint like this, upper piston, intervalve, sliding sleeves etc. are up, separate the back with hanger and squeeze mortar and circulation well cleanup, can trip out running tool after the operation.
Claims (4)
1, a kind of anti-rotation hanger of slipping out of the hand, it is characterized in that: it comprises hanger and running tool, and said apparatus connects successively;
Said hanger comprises horn mouth, the cone pipe, slips, screw, slip spider, the gingival cyst of mucous gland in the newborn ring, seal, following fluid cylinder, lower piston, horn mouth is connected with the cone pipe, keyway is arranged in the horn mouth, the cone pipe has the axial bond groove, cone pipe bottom is connected with lower piston, and sealing is arranged, be enclosed between the following fluid cylinder of lower piston and lower piston and the cone pipe seal is all arranged, and screw control is arranged between following fluid cylinder and the lower piston, the slip spider bottom is connected with following fluid cylinder, and the gingival cyst of mucous gland in the newborn ring is controlled between slip spider bottom taper hole and the following fluid cylinder, the interior pawl on the gingival cyst of mucous gland in the newborn ring is corresponding with the outer pawl of cone pipe simultaneously, and slip spider top is fixed with slips;
Said running tool comprises linkage, anti-rotation device and the circulating device that builds the pressure, and said apparatus connects successively,
Said linkage comprises joint, piston, intervalve, and the upper and lower side of piston is connected with intervalve with joint respectively, and the seal sealing is arranged, and intervalve is connected with horn mouth;
Said anti-rotation device comprises fluid cylinder, tapered end, screw, tapered end and fluid cylinder bottom are in succession, and by screw on piston, keyway is arranged at the piston bottom, and the key of some protrusions is arranged under the tapered end, and this key internal and external parts is inserted in respectively in the keyway of the piston outside, horn mouth inboard, fluid cylinder top inner convex platform is enclosed within on the path of piston top, and hang on its big footpath step, seal is all arranged between the two, the piston perforation is communicated with the fluid cylinder inner chamber;
The said circulating device that builds the pressure comprises sliding sleeve, guiding valve, steel ball and screw, sliding sleeve is connected with intervalve, and the seal sealing is arranged at the bottom, sliding sleeve has the inside and outside eyelet that is communicated with, guiding valve is housed in the sliding sleeve, the flexible pawl in guiding valve top is inserted in the endoporus of intervalve, and guiding valve is controlled on the intervalve by screw, the guiding valve that is positioned at place, the big footpath of sliding sleeve has outer lug boss, ball seat is arranged at its bottom, and there is steel ball the ball seat top, and the guiding valve of ball seat top has interior accessibke porosity, this through hole is corresponding with the sliding sleeve through hole, the sliding sleeve through hole is corresponding with the cone pipe through-hole, and there is one group of seal guiding valve through hole below, and there are two groups of seals the top;
2, a kind of anti-rotation according to claim 1 hanger of slipping out of the hand is characterized in that: said horn mouth has inside and outside that be communicated with and protrude the corresponding keyway of key with tapered end.
3, a kind of anti-rotation hanger of slipping out of the hand, it is characterized in that: it comprises hanger and running tool, and said apparatus connects successively;
Said hanger comprises horn mouth, the cone pipe, slips, screw, slip spider, the gingival cyst of mucous gland in the newborn ring, seal, following fluid cylinder, lower piston, horn mouth is connected with the cone pipe, keyway is arranged in the horn mouth, the cone pipe has the axial bond groove, cone pipe bottom is connected with lower piston, and sealing is arranged, be enclosed between the following fluid cylinder of lower piston and piston and the cone pipe seal is all arranged, and screw control is arranged between following fluid cylinder and the lower piston, the slip spider bottom is connected with following fluid cylinder, and the gingival cyst of mucous gland in the newborn ring is controlled between slip spider bottom taper hole and the following fluid cylinder, the interior pawl on the gingival cyst of mucous gland in the newborn ring is corresponding with the outer pawl of cone pipe simultaneously, and slip spider top is fixed with slips;
Said running tool comprises linkage, anti-rotation device and the circulating device that builds the pressure, and said apparatus connects successively,
Said linkage comprises joint, piston, intervalve and sliding sleeve, and the upper and lower side of piston is connected with intervalve with joint respectively, and the seal sealing is arranged, and intervalve one end is connected with sliding sleeve, and the seal sealing is arranged;
Said anti-rotation device comprises separates tube sealing, fluid cylinder, lock dog, screw, separating the tube sealing top is connected with fluid cylinder, the below is inserted in the sliding sleeve, outwards props up lock dog, and radial slot is arranged on the sliding sleeve, the interior lock dog outside of radial slot that is contained in sliding sleeve is inserted in the axial bond groove of cone pipe, the lock dog outside all has chamfering up and down, and horn mouth is connected with the cone pipe, and lock dog is controlled, on horn mouth, horn mouth and cone Guan Jun have and the lock dog outside corresponding taper hole of chamfering up and down screw with the deblocking management and control;
The said circulating device that builds the pressure comprises sliding sleeve, screw, guiding valve and steel ball, sliding sleeve has inside and outside that be communicated with and the corresponding eyelet of cone pipe through-hole, eyelet has seal up and down and between the cone pipe, guiding valve is housed in the sliding sleeve, guiding valve is controlled at the intervalve bottom by screw, ball seat is arranged at the bottom of guiding valve, the guiding valve of ball seat top has interior accessibke porosity, this through hole is corresponding with the sliding sleeve through hole, the radially inside and outside open-work that is communicated with is arranged on the sliding sleeve barrel of ball seat below, and sliding sleeve bottom internal diameter there is steel ball less than the guiding valve external diameter above the ball seat, there is one group of seal guiding valve through hole below, and there are two groups of seals the top.
4, a kind of anti-rotation according to claim 3 hanger of slipping out of the hand, it is characterized in that: there is screw thread said horn mouth below, there is the axial bond groove screw thread top, the keyway top has and the outer corresponding conical surface of chamfering of lock dog, cone pipe top has and the outer corresponding conical surface of chamfering of lock dog, lock dog is controlled in horn mouth and the screwed connection of cone pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029162 CN2707943Y (en) | 2004-06-15 | 2004-06-15 | Rotational off-hand proof hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029162 CN2707943Y (en) | 2004-06-15 | 2004-06-15 | Rotational off-hand proof hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2707943Y true CN2707943Y (en) | 2005-07-06 |
Family
ID=34849788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420029162 Expired - Fee Related CN2707943Y (en) | 2004-06-15 | 2004-06-15 | Rotational off-hand proof hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2707943Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587852A (en) * | 2012-03-18 | 2012-07-18 | 荆州市赛瑞能源技术有限公司 | Liner hanger and setting tool |
-
2004
- 2004-06-15 CN CN 200420029162 patent/CN2707943Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587852A (en) * | 2012-03-18 | 2012-07-18 | 荆州市赛瑞能源技术有限公司 | Liner hanger and setting tool |
| CN102587852B (en) * | 2012-03-18 | 2014-03-12 | 荆州市赛瑞能源技术有限公司 | Drilling liner hanger and setting tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201372722Y (en) | Top drive casing running device | |
| CN1053278A (en) | Well casing flotation device and method | |
| EP3690182A1 (en) | Sediment core-boring drilling process suitable for submarine rope core-boring drill | |
| CA2885335C (en) | Swivel elevator | |
| CN101265789A (en) | Compound pressurized cyclone tail tube hanging packer | |
| CN2707943Y (en) | Rotational off-hand proof hanger | |
| CN1054644A (en) | In sub-sea drilled wells, discharge the equipment of grouting pipe close at a distance | |
| CN201730822U (en) | Novel torque transmission bailing pump | |
| CN2750039Y (en) | Wire rope hanging submersible electric screw pump oil extraction system | |
| CN2711380Y (en) | Apparatus for anti-blowout during snubbing serving for full-sealing zero-pressure conversion oil-water well | |
| CN2908761Y (en) | Hanger for rotary cartriage container | |
| CN201184151Y (en) | Combined type tail tube hanger | |
| CN2661917Y (en) | Oil recovery system with electric submersible screw pump suspended by cable | |
| CN208473814U (en) | A kind of anchoring compensation seperated layer water injection equipment | |
| CN1184406C (en) | Vacum tube-type bailing process and its borehole tool | |
| CN217001744U (en) | Pump type bailing barrel device | |
| CN2254120Y (en) | Secondary well cleaning device for combined rod type oil pumping unit | |
| CN2620760Y (en) | Oil pumping device capable of automatic rotating of sucker rod and oil pipe | |
| CN201851071U (en) | Multistage fracturing hole-sealing tool | |
| CN2711956Y (en) | Hydraulic conveyer for cable | |
| CN2731064Y (en) | Deflection guider capable of being taking out | |
| CN2688871Y (en) | Reversed inserting hydraulic tail tube suspending device | |
| CN2542827Y (en) | Downhole string buffer | |
| CN1944937A (en) | Submersible reverse circulation engineering drilling rig | |
| CN200964938Y (en) | Boosting type rod pump device |
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 |