CN202866713U - Special sleeve dislocation eccentric correct setting hanger for repairing sleeves of horizontal well - Google Patents
Special sleeve dislocation eccentric correct setting hanger for repairing sleeves of horizontal well Download PDFInfo
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- CN202866713U CN202866713U CN 201220454757 CN201220454757U CN202866713U CN 202866713 U CN202866713 U CN 202866713U CN 201220454757 CN201220454757 CN 201220454757 CN 201220454757 U CN201220454757 U CN 201220454757U CN 202866713 U CN202866713 U CN 202866713U
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- urceolus
- location
- horizontal well
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Abstract
The utility model discloses a special sleeve dislocation eccentric correct setting hanger for repairing sleeves of a horizontal well. The special sleeve dislocation eccentric correct setting hanger for repairing the sleeves of the horizontal well solves the difficult problem that a dislocation and break well with from 30% to 50% coincidence degree of dislocation inner diameters of sleeves of a well in the prior art can not be set correctly and repaired. The special sleeve dislocation eccentric correct setting hanger for repairing the sleeves of the horizontal well comprises a seeker. A hydraulic anchor hanging device is connected with an eccentric locating correct setting device through a switch connector. The hydraulic anchor hanging device comprises a seat sealing locating mechanism and an insert-type unsealing mechanism. The seat sealing locating mechanism is arranged inside the insert-type unsealing mechanism and is connected with the insert-type unsealing mechanism through a stop pin. A balance weight installation vertical groove is formed in an inner circle of a circumferential direction stop inner cylinder of the eccentric locating correct setting device. Weight balance bars are arranged inside the balance weight installation vertical groove. The seeker is connected with the lower end of the balance weight installation vertical groove. After the special sleeve dislocation eccentric correct setting hanger for repairing the sleeves of the horizontal well is moved to a horizontal well section, one side provided with the weight balance bars is always kept below, a bottom tip of the seeker and the special sleeve dislocation eccentric correct setting hanger for repairing the sleeves of the horizontal well can be accurately inserted in the lower dislocation sleeves according to a sleeve dislocation position determined earlier, a repairing channel of the dislocation sleeves is got through, and producing is carried out after repair.
Description
Technical field
The utility model relates to the instrument of getting through of sleeve in oil field bad break horizontal well, particularly casing-broken horizontal well and repaiies the cover Special Eccentric hanger that sets right, and solves current casing-broken internal diameter and overlaps the difficult problem that the broken well of degree between 30-50% can't set right.
Background technology
Due to the large-scale promotion of horizontal well technology in oil field, the supporting governing problem of thing followed horizontal well also seems and becomes increasingly conspicuous, and way and the instrument of wherein tackling horizontal well casing pipe bad break problem are supporting also not comprehensive.Two important difficult points of horizontal well casing pipe bad break problem are exactly to get through and being lowered to again of casing repairing tubing string.The method of current reparation broken well in straight well is to go out front end with the additional cementing tool of the conical guide shoe of large chamfering with boring materials processing, tube post gravity is set right to the sleeve pipe of bottom bad break, adopt afterwards the method for squeeze method that mistake section sleeve pipe is fixed, and then bore cement and corrector.If this kind of method is applied in very easily polluted reservoir of net horizontal section, cause permanent irreversible injury.Therefore, this kind of technique seldom is applied in when repairing horizontal well.Another method is to adopt the mode that hangs tail pipe, described in casing-broken well repair tubular column as a kind of as patent, application number 201020549366.1, top adopts hanger, below adopts tapered guide shoe, passes through blank tubing compressive-shear connection breaking shear pin after having constructed.Larger gap is left in this kind of method rear bottom of at first constructing, and oil well still can shake out, and secondly hanger internal diameter is obvious than small-scale production tubing string undergauge, also has a bottom wrong section sleeve pipe to have a great impact because of the suspension life-span of rocking hanger that production produces.Therefore, this method does not have realistic meaning and is difficult to be applied in actual production; In addition, the scheme that has the people once to adopt two steps to walk, carry out well workover.At first be lowered to the wedge angle guide shoe that same fix tool external diameter is equally large, without special-purpose corrector, bottom wrong section sleeve pipe is set right, look at the size of To Axial Force Needed, as To Axial Force Needed not quite is lowered to the expansion tube fix tool, need to again sleeve pipe be set right, carry out afterwards expand tube, finally be lowered to again bit drills and fall residual base.So not only take time and effort, and new problem easily occurs in boring the plug process, as repairing pipe displacement landing etc.And above-mentioned several common method, situation that all can only be lower for the casing-broken degree is used, be that upper and lower section overlaps the well that surpasses casing inner diameter 50%, overlap helpless because of the problem in bad break orientation at the well of casing inner diameter 30-50% to the upper and lower section of sleeve pipe.Therefore, the conventional method of getting through and existing instrument are no longer applicable in the more horizontal well of bad break.Therefore, develop a kind of to the casing-broken direction targetedly, the instrument of getting through that does not pollute again stratum just seems particularly important.
Summary of the invention
The purpose of this utility model is to provide the casing-broken horizontal well and repaiies the cover Special Eccentric hanger that sets right, solve current casing-broken internal diameter and overlap the difficult problem that the broken well of degree between 30-50% can't set right, the bad break sleeve pipe sets right, get through the reparation passage, the horizontal well of repairing degree of depth casing-broken makes it continue to produce.
The present technique solution can reach above-mentioned purpose: the casing-broken horizontal well is repaiied the cover Special Eccentric hanger that sets right, and comprises target seeker, and hydraulic anchor hang device and the eccentric device that sets right of locating are connected by crossover sub; The hydraulic anchor hang device comprises setting detent mechanism and plug-in type solution sealing mechanism, and setting detent mechanism is arranged in plug-in type solution sealing mechanism and connects by spacer pin; The inner circle of locating the circumferential spacing inner core of the device that sets right in bias is provided with counterweight installation vertical slot, and counter weight strip is housed in it, in its lower end, connects target seeker.This instrument is after being lowered to net horizontal section, and its side that counter weight strip is housed, all the time in below, can be inserted the vertex (vertices) of target seeker in the lower parts casing pipe of bad break together with this instrument exactly according to definite casing-broken orientation in early stage, gets through the reparation passage of bad break sleeve pipe.
Compared with prior art, the utlity model has following significant effect: this tool construction is simple and reliable, before spacing ring location shear pin is cut off, it is free to rotate that the bias of this instrument is located the device that sets right, after being lowered to net horizontal section, one side of counter weight strip is housed all the time in below, can, according to definite casing-broken orientation in early stage, exactly the vertex (vertices) of target seeker be inserted in the lower parts casing pipe of bad break together with this instrument.Solve
at presentthe casing-broken internal diameter overlaps the difficult problem that the broken well of degree between 30-50% can't set right, and the horizontal well of this tubing depth bad break is resumed production after repairing, and has huge economic benefit and social benefit.Use this instrument bad break sleeve pipe that sets right, get through the reparation passage, can not produce and pollute oil reservoir, its perfect in shape and function, can locate and can set right, and its applicability is wide, and cost is low, and service condition is required to the advantages such as low.Application is convenient at the scene, and lower to construction team's technical requirements, construction sequence is simple, can effectively set up the passage at down-hole horizontal section bad break sleeve opening place, saves the activity duration, has improved the efficiency of well workover, therefore larger popularization and application space is arranged.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to accompanying drawing, the casing-broken horizontal well is repaiied the cover Special Eccentric hanger that sets right and is comprised target seeker 25, and hydraulic anchor hang device and the eccentric device that sets right of locating are connected by crossover sub 13; The hydraulic anchor hang device comprises setting detent mechanism and plug-in type solution sealing mechanism, and setting detent mechanism is arranged in plug-in type solution sealing mechanism and by spacer pin 6 and connects; The inner circle of locating the circumferential spacing inner core 20 of the device that sets right in bias is provided with counterweight installation vertical slot, and counter weight strip is housed in it, in its lower end, connects target seeker 25.Setting detent mechanism comprises at the bottom of location inner core 1, anchor cylinder top cover 2, location inner core stifled 10 and spacing base ring 12, location inner core 1 is provided with location inner core inlet opening 8 and spacer pin inserts slotted eye, be sleeved on the bottom of locating inner core 1 by the bottom of the inner core of location, blocking up 10, blocking up location shear pin 11 end of by is connected with location inner core 1, anchor cylinder top cover 2 is welded on the lower end of location inner core 1 with the top cylindrical screwed connection of locating inner core 1, spacing base ring 12.Plug-in type solution sealing mechanism comprises location urceolus 3, anchor cylinder 4, catch ring 5 and anchor cylinder support set 7, and the top cylindrical of location urceolus 3 is provided with anchor cylinder limited step and is connected step with catch ring, and its cylindrical shell is provided with spacer pin 6 and location urceolus inlet opening 9; Location urceolus 3 is connected by spacer pin 6 with location inner core 1, and anchor cylinder 4 from bottom to top is enclosed within on the urceolus 3 of location, and catch ring 5 is connected step by screwed connection with the catch ring of location urceolus 3, and anchor cylinder support set 7 from bottom to top is enclosed within on the urceolus 3 of location.At least process two lobe ratchets on the cylindrical shell of described anchor cylinder 4, on its ratchet outer wall, process slip insert, each lobe ratchet bottom outer wall is provided with chamfering, form the ratchet-type slips, the chamfer angle of each lobe ratchet bottom can depend on the circumstances, and the ratchet-type slips is simple in structure, in reliable operation.The top inner circle of catch ring 5 is provided with screw thread, bottom ring body process and assemble draw-in groove and special-purpose upper button tool matching; The top inner circle of anchor cylinder support set 7 is provided with spacer pin and snaps in annular groove, and this spacer pin snaps in annular groove and coordinates with spacer pin 6
; ?the both sides of location inner core inlet opening 8 and location urceolus inlet opening 9 are provided with sealing ring.The eccentric location device that sets right comprises target seeker 25, between crossover sub 13 and target seeker 25, is connected the eccentrically mounted weight detent mechanism, and the inner circle of the circumferential spacing inner core 20 of eccentrically mounted weight detent mechanism at least is provided with a counterweight vertical slot is installed, its interior counter weight strip that is equipped with.Many counterweights also can be set vertical slot is installed, be convenient to counterweight and regulate.Due to counter weight strip being installed, after this instrument is being lowered to net horizontal section, its side that counter weight strip is housed is all the time in below, can carry out the counterweight adjusting according to definite casing-broken orientation in early stage, accurately point to bottom wrong section cannula cavity while making the vertex (vertices) of target seeker 5 static under Action of Gravity Field, exactly the vertex (vertices) of target seeker 25 is inserted in the lower parts casing pipe of bad break together with this instrument.The eccentrically mounted weight detent mechanism comprises circumferential spacing urceolus 16, circumferential spacing inner core 20, upper urceolus 17, lower urceolus 21 and positioning control office, top cylindrical and the gingival cyst of mucous gland in the newborn button cylinder 15 of upper top cylinder 14 link and connect by gingival cyst of mucous gland in the newborn, its underpart cylindrical and circumferential spacing inner core 20 screwed connections, be suspended on gingival cyst of mucous gland in the newborn button cylinder 15 on the location spline on circumferential spacing urceolus 16 inner circle steps; The bottom cylindrical of circumferential spacing urceolus 16 successively with upper urceolus 17 and lower urceolus 21 screwed connections; Upper spheres 19 is arranged on the trackslip ball of step of circumferential spacing inner core 20 and installs in vertical slot, and two ends are fixing by screw 18; The step that trackslips of circumferential spacing inner core 20 is pacified to seat on the inner circle step of the bottom of upper urceolus 17; Positioning control office is installed between lower urceolus 21 and circumferential spacing inner core 20.Positioning control office comprises spacing ring 23, spacing ring location shear pin 22, ball jacket 24 and lower spheres, and spacing ring 23 is enclosed within circumferential spacing inner core 20 outsides and locates shear pin 22 by spacing ring and is connected with lower urceolus 21; The inner circle of ball jacket 24 is provided with screw thread, its cylindrical step is provided with ball vertical slot is installed, and in-built lower spheres, by the bottom cylindrical screwed connection of ball jacket 24 and circumferential spacing inner core 20, is arranged on the below of spacing ring 23.The trackslip top cylindrical of step of circumferential spacing inner core 20 is provided with the location spline, and this location spline coordinates with the location spline on circumferential spacing urceolus 16 inner circle steps; The ball that circumferential spacing inner core 20 trackslips on step is installed ball on vertical slot and ball jacket 24 cylindrical steps and vertical slot is installed at least is provided with three, and each configures three groups of upper spheres 19 and lower spheres.Also can take other mechanical rolling structures herein, as: be provided with ball and cannelure be installed or on circumferential spacing inner core 20 trackslips the cylindrical step of step and ball jacket 24, bearing be installed on circumferential spacing inner core 20 trackslips the cylindrical step of step and ball jacket 24.The bottom inner circle screwed connection of the anchor cylinder support set 7 of crossover sub 13 top cylindricals and plug-in type solution sealing mechanism; The bottom inner circle of crossover sub 13 and eccentric top cylindrical screwed connection of locating the spacing urceolus 16 of the device that sets right; Be provided with sealing ring at crossover sub 13 and the two ends of anchor cylinder support set 7 and spacing urceolus 16 junctions; Target seeker 25 bodies are provided with axial relief hole, and its vertex (vertices) is the wedge sharp structure.
The top cylindrical of this tool guide 25 and the bottom inner circle screwed connection of circumferential spacing inner core 20.Crossover sub 13 and circumferential spacing urceolus 16 screwed connections.Because top cylindrical and the gingival cyst of mucous gland in the newborn button cylinder 15 of upper top cylinder 14 link and connect by gingival cyst of mucous gland in the newborn, its underpart cylindrical and circumferential spacing inner core 20 screwed connections, and the step that trackslips of circumferential spacing inner core 20 is pacified seat on the inner circle step of the bottom of upper urceolus 17, its underpart inner circle screw thread is connected with target seeker 25 again, just makes top cylinder 14, gingival cyst of mucous gland in the newborn button cylinder 15, circumferential spacing inner core 20
, ball jacket 24 and target seeker 25 can upwards freely rotate in week, made the set right vertex (vertices) of target seeker 25 of device lower end of counterweight is good bias location accurately point to the inner chamber of bottom wrong section sleeve pipe.
When this instrument is installed, first several groups of upper spheres 19 are packed in circumferential spacing inner core 20, the first-class screw 18 in two ends, upper top cylinder 14 is connected by screw thread with circumferential spacing inner core 20, upper urceolus 17 and circumferential spacing urceolus 16 are enclosed within respectively circumferential spacing inner core 20 outsides from two ends, upper urceolus 17 and circumferential spacing urceolus 16 are by screwed connection, gingival cyst of mucous gland in the newborn button cylinder 15 from top to bottom is enclosed between circumferential spacing inner core 20 and circumferential spacing urceolus 16, crossover sub 13 is by the circumferential spacing urceolus 16 of screwed connection afterwards, lower urceolus 21 and spacing ring 23 are located after shear pin 22 is connected by spacing ring, again with upper urceolus 17 by screwed connection.Use special instrument ball jacket 24 to be arrived to the lower end of circumferential spacing inner core 20 by screwed connection.
The concrete use procedure of this instrument is as follows:
Going into the well frontly installs counter weight strip in advance according to down-hole casing bad break orientation, and the vertex (vertices) of target seeker 25 is aimed in the lower parts casing pipe of wrong section under free gravity.While going into the well, directly this instrument is connected on to the well workover pipe string desired location, arrives static a period of time of casing-broken position, make the downward transfixion of circumferential spacing inner core 20 center of gravity of freely rotating.After pressing down afterwards the certain tonnage of well workover pipe string, spacing ring location shear pin 22 is cut off, and circumferential spacing inner core 20 retraction certain distances make the to trackslip location spline of step top enters into the location spline on circumferential spacing urceolus 16 inner circle steps.Now the upper cylinder 14 that pushes up is along sliding to location inner core 1 place, bottom on gingival cyst of mucous gland in the newborn button cylinder 15, and at this moment the eccentric front portion of the device that sets right of locating is by circumferentially spacing being difficult for skids off in parts casing pipe from wrong section.Then the lower parts casing pipe that well workover pipe string continues to press down wrong section sets right.After this instrument arrives desired depth, can hang by hydraulic anchor.
hydraulic anchor is hung:highly pressurised liquid enters by location inner core inlet opening 8 and location urceolus inlet opening 9, promote anchor cylinder support set 7 up, make anchor cylinder support set 7 promote anchor cylinders 4 ratchet-type slips distending, outwards be stuck on sleeve pipe tubing string bad break mouth upper sleeve inwall, the spacing spacer pin that enters that spacer pin 6 loses anchor cylinder support set 7 snaps in annular groove.Now the upper lifting pipe post can location inner core 1, anchor cylinder top cover 2, at the bottom of the inner core of location stifled 10 and the setting detent mechanism that forms of spacing base ring 12 carry to ground.Now the sleeve pipe of bottom bad break is temporarily fixed, and is lowered to afterwards casing repairing tubing string deblocking again.
the hydraulic pressure deblocking:at the casing repairing tubing string front end be lowered to, intubate is installed, is inserted into the location urceolus of the plug-in type solution sealing mechanism of this instrument
3in inner chamber, the step of casing repairing tubing string front end intubate is stuck in urceolus 3 places, location, makes contact position seamless.Now press down intubate step promotion location urceolus 3 descending, anchor cylinder 4 makes it along the relative down sliding of location urceolus 3 outer wall because of card envelope power, it is descending that catch ring 5 promotes anchor cylinder support ring 7, makes the ratchet-type slips of anchor cylinder 4 reclaim deblocking because of the limited support that loses anchor cylinder support ring 7.Seamless with the contact position of location urceolus 3 because of the front end intubate of casing repairing tubing string, therefore the casing repairing tubing string can be smoothly by the casing-broken place, and the part that this instrument is stayed in well pushes down-hole.Then transfer the casing repairing tubing string, can carry out repair by the casing-broken cross section.
Claims (10)
1. the casing-broken horizontal well is repaiied the cover Special Eccentric hanger that sets right, and comprises target seeker (25), it is characterized in that, hydraulic anchor hang device and the eccentric device that sets right of locating are connected by crossover sub (13); The hydraulic anchor hang device comprises setting detent mechanism and plug-in type solution sealing mechanism, and setting detent mechanism is arranged in plug-in type solution sealing mechanism and by spacer pin (6) and connects; The inner circle of locating the circumferential spacing inner core (20) of the device that sets right in bias is provided with counterweight installation vertical slot, and counter weight strip is housed in it, in its lower end, connects target seeker (25).
2. casing-broken horizontal well according to claim 1 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, described setting detent mechanism comprises location inner core (1), anchor cylinder top cover (2), stifled (10) and spacing base ring (12) at the bottom of the inner core of location, location inner core (1) is provided with location inner core inlet opening (8) and spacer pin inserts slotted eye, at the bottom of locating inner core, stifled (10) are sleeved on the bottom of locating inner core (1), blocking up location shear pin (11) end of by is connected with location inner core (1), anchor cylinder top cover (2) and the top cylindrical screwed connection of locating inner core (1), spacing base ring (12) is welded on the lower end of location inner core (1).
3. casing-broken horizontal well according to claim 2 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, described plug-in type solution sealing mechanism comprises location urceolus (3), anchor cylinder (4), catch ring (5) and anchor cylinder support set (7), the top cylindrical of location urceolus (3) is provided with anchor cylinder limited step and is connected step with catch ring, and its cylindrical shell is provided with spacer pin (6) and location urceolus inlet opening (9); Location urceolus (3) is connected by spacer pin (6) with location inner core (1), anchor cylinder (4) from bottom to top is enclosed within on location urceolus (3), catch ring (5) is connected step by screwed connection with the catch ring of location urceolus (3), and anchor cylinder support set (7) from bottom to top is enclosed within on location urceolus (3).
4. casing-broken horizontal well according to claim 3 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, at least process two lobe ratchets on the cylindrical shell of described anchor cylinder (4), on its ratchet outer wall, process slip insert, each lobe ratchet bottom outer wall is provided with chamfering, forms the ratchet-type slips; The top inner circle of catch ring (5) is provided with screw thread, bottom ring body process and assemble draw-in groove; The top inner circle of anchor cylinder support set (7) is provided with spacer pin and snaps in annular groove, and this spacer pin snaps in annular groove and coordinates with spacer pin (6); Both sides at location inner core inlet opening (8) and location urceolus inlet opening (9) are provided with sealing ring.
5. casing-broken horizontal well according to claim 2 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, the described eccentric device that sets right of locating comprises target seeker (25), be connected the eccentrically mounted weight detent mechanism between crossover sub (13) and target seeker (25), the inner circle of the circumferential spacing inner core (20) of eccentrically mounted weight detent mechanism at least is provided with a counterweight vertical slot is installed, equipped counter weight strip in it.
6. casing-broken horizontal well according to claim 5 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, described eccentrically mounted weight detent mechanism comprises circumferential spacing urceolus (16), circumferential spacing inner core (20), upper urceolus (17), lower urceolus (21) and positioning control office, top cylindrical and the gingival cyst of mucous gland in the newborn button cylinder (15) of upper top cylinder (14) link and connect by gingival cyst of mucous gland in the newborn, its underpart cylindrical and circumferential spacing inner core (20) screwed connection, be suspended on gingival cyst of mucous gland in the newborn button cylinder (15) on the location spline on circumferential spacing urceolus (16) inner circle step; The bottom cylindrical of circumferential spacing urceolus (16) successively with upper urceolus (17) and lower urceolus (21) screwed connection; Upper spheres (19) is arranged on the trackslip ball of step of circumferential spacing inner core (20) and installs in vertical slot, and two ends are fixing by screw (18); The step that trackslips of circumferential spacing inner core (20) is pacified to seat on the inner circle step of the bottom of upper urceolus (17); Positioning control office is installed between lower urceolus (21) and circumferential spacing inner core (20).
7. casing-broken horizontal well according to claim 6 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, described positioning control office comprises spacing ring (23), spacing ring location shear pin (22), ball jacket (24) and lower spheres, and spacing ring (23) is enclosed within circumferential spacing inner core (20) outside and locates shear pin (22) by spacing ring and is connected with lower urceolus (21); The inner circle of ball jacket (24) is provided with screw thread, its cylindrical step is provided with ball vertical slot is installed, and in-built lower spheres, by the bottom cylindrical screwed connection of ball jacket (24) and circumferential spacing inner core (20), is arranged on the below of spacing ring (23).
8. casing-broken horizontal well according to claim 7 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, the trackslip top cylindrical of step of described circumferential spacing inner core (20) is provided with the location spline, and this location spline coordinates with the location spline on circumferential spacing urceolus (16) inner circle step; The ball that circumferential spacing inner core (20) trackslips on step is installed ball on vertical slot and ball jacket (24) cylindrical step and vertical slot is installed at least is provided with three, and each configures three groups of upper spheres (19) and lower spheres.
9. casing-broken horizontal well according to claim 7 is repaiied the cover Special Eccentric hanger that sets right, it is characterized in that, the trackslip cylindrical step of step and ball jacket (24) of described circumferential spacing inner core (20) is provided with ball and cannelure is installed or on circumferential spacing inner core (20) trackslips the cylindrical step of step and ball jacket (24), bearing is installed.
10. repair the cover Special Eccentric hanger that sets right according to the described casing-broken horizontal well of claim 2 or 5, it is characterized in that the bottom inner circle screwed connection of the anchor cylinder support set (7) of described crossover sub (13) top cylindrical and plug-in type solution sealing mechanism; The bottom inner circle of crossover sub (13) and eccentric top cylindrical screwed connection of locating the spacing urceolus (16) of the device that sets right; Be provided with sealing ring at crossover sub (13) and the two ends of anchor cylinder support set (7) and spacing urceolus (16) junction; Target seeker (25) body is provided with axial relief hole, and its vertex (vertices) is the wedge sharp structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454757 CN202866713U (en) | 2012-09-08 | 2012-09-08 | Special sleeve dislocation eccentric correct setting hanger for repairing sleeves of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220454757 CN202866713U (en) | 2012-09-08 | 2012-09-08 | Special sleeve dislocation eccentric correct setting hanger for repairing sleeves of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866713U true CN202866713U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220454757 Expired - Fee Related CN202866713U (en) | 2012-09-08 | 2012-09-08 | Special sleeve dislocation eccentric correct setting hanger for repairing sleeves of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852479A (en) * | 2012-09-08 | 2013-01-02 | 中国石油化工股份有限公司 | Special eccentric correcting hanger for casing fracture horizontal workover sleeve |
-
2012
- 2012-09-08 CN CN 201220454757 patent/CN202866713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852479A (en) * | 2012-09-08 | 2013-01-02 | 中国石油化工股份有限公司 | Special eccentric correcting hanger for casing fracture horizontal workover sleeve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20160908 |
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| CF01 | Termination of patent right due to non-payment of annual fee |