CN203742530U - Suspension packer - Google Patents
Suspension packer Download PDFInfo
- Publication number
- CN203742530U CN203742530U CN201420056980.2U CN201420056980U CN203742530U CN 203742530 U CN203742530 U CN 203742530U CN 201420056980 U CN201420056980 U CN 201420056980U CN 203742530 U CN203742530 U CN 203742530U
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- outside
- ring
- groove
- central tube
- platform
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Abstract
The utility model provides a suspension packet. The suspension packer comprises a central cylinder, a rubber barrel assembly, an outer sleeve and an inner sliding sleeve. The outer side of the lower portion of the central cylinder and the inner side of the lower portion of the outer sleeve are fixed together. The inner side of the upper portion of the outer sleeve is provided with a long circular groove. The inner siding sleeve is arranged in the long circular groove in a sleeved mode. The upper portion of the outer sleeve and the outer side of the upper portion of the inner sliding sleeve are fixedly installed together through a lower shear pin. The bottom of the inner sliding sleeve and the bottom of the long circular groove are spaced, so that a hydraulic cavity is formed. The central cylinder is provided with a radial hydraulic through hole communicated with the hydraulic cavity. The portion, located at the top end of the inner sliding sleeve and the top end of the outer sleeve, of the central cylinder is sleeved with the rubber barrel assembly. A sleeve is fixed to the outer side of the upper portion of the central cylinder. The suspension packer is reasonable and compact in structure and convenient to use; in the process of tripping the suspension packer in, when the outer portion of the suspension packer gets stuck by crushed stones in a well wall, a slip will not be set in advance due to the fact that the slip itself can not stretch out, and consequently the phenomenon that the suspension packer is set in advance is avoided, and it is ensured that the construction operation is conducted smoothly.
Description
Technical field
the utility model relates to packing device technical field, is a kind of hanging packer.
Background technology
adopt and point adopt, control in the construction operation processes such as water blocking water and reservoir reconstruction the exceptional wells such as Multilateral Wells mixed, often need to carry out staged fracturing operation to the different reservoir of horizontal well and branch well hole.In the time carrying out staged fracturing operation, need a kind of hanger, after this hanger is setting, possess certain tensile strength, thereby ensure the carrying out smoothly of fracturing work in later stage.At present, conventional hanger is easily blocked by the rubble in the borehole wall in the process being lowered to, and causes hanger to sit in advance extension, causes the failure of construction operation.
Summary of the invention
the utility model provides a kind of hanging packer, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem that hanger that existing hanger exists is in actual use sat extension in advance.
the technical solution of the utility model realizes by following measures: a kind of hanging packer, comprise central tube, packing element assembly, outer jacket casing and inner sliding sleeve, the lower outside of central tube and the lower inside of outer jacket casing are fixed together, the upper inner of jacket casing has long annular groove outside, in long annular groove, be set with inner sliding sleeve, the top of outer jacket casing and the upper outside of inner sliding sleeve are fixedly installed togather by lower shear pin, between the bottom of inner sliding sleeve and the bottom of long annular groove, there is spacing and form hydraulic cavities, on central tube, there is the hydraulic radial through hole communicating with hydraulic cavities, be set with packing element assembly in the central tube outside that is positioned at inner sliding sleeve and outer jacket casing top, upper outside at central tube is fixed with sleeve, on sleeve, circumferentially there is the upper mounting groove that is no less than two, on sleeve below upper mounting groove, there is the lower mounting groove upper and lower corresponding with going up separately mounting groove, be set with the narrow slips in wide two ends, middle part in the central tube outside of the upper mounting groove upper and lower corresponding with every group and lower mounting groove, the top of slips is fixedly mounted in mounting groove, the bottom of slips is fixedly mounted in lower mounting groove, the central tube outside between sleeve and packing element assembly by pin be installed with the upper outside cover for seat corresponding with slips lower inside, outside, lower end in cover for seat is fixed with stroke platform, between sleeve and stroke platform, there is spacing.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
the radially corresponding central tube of above-mentioned and lower shear pin outside can limited location groove, is fixed with pawl piece in stopper slot, circumferentially has crown pawl upward in the outside of pawl piece, has chute in the inner side of inner sliding sleeve, and the outer end of pawl piece is positioned at chute.
above-mentioned slips outside between upper mounting groove and lower mounting groove can be jagged, on breach, be fixed with the arc spring of opening towards central tube outside by securing member, the two ends of arc spring and the outside of sleeve offset, there is upper limit boss in the upper outside of central tube, the top of upper limit boss and sleeve is fitted together, be set with at the lower outside of cover for seat the setting ring that longitudinal cross-section is inverted T shape, the upper outside of present seal ring is fixedly installed togather by screw thread and sleeve, between present seal ring and stroke platform, has spacing.
above-mentioned packing element assembly can comprise upper baffle ring, packing element, lower baffle ring and slip ring, erection loop platform on the upper end of packing element arranged outside has, upper baffle ring is fixedly mounted on erection loop platform, there is lower erection loop platform in the lower end of packing element arranged outside, lower baffle ring is fixedly mounted on lower erection loop platform, be fixed with coordinating block on the top of upper baffle ring, be provided with the suit groove corresponding with upper coordinating block in the bottom of cover for seat, upper coordinating block is fixedly mounted in suit groove, the bottom of lower baffle ring and the outside of slip ring are fitted together, there is liner groove inner side, middle part at packing element, in liner groove, be installed with inner bushing ring.
above-mentioned upper baffle ring can comprise conical ring and lower conical ring, be fixed with coordinating block on the top of upper conical ring, upper coordinating block is fixedly mounted in suit groove, the upper outside of the lower inside of upper conical ring and lower conical ring is fitted together, lower baffle ring comprises cutting ferrule, middle cutting ferrule and lower cutting ferrule, the lower outside of upper cutting ferrule and the upper inner of middle cutting ferrule are fitted together, there is suit ring platform in the outside, bottom of middle cutting ferrule, be fixed with the lower coordinating block corresponding with being set with ring platform in the outside, top of lower cutting ferrule, lower coordinating block is fixedly mounted in suit ring platform, the inner side of lower cutting ferrule and the outside of slip ring are fitted together.
can there be upper holddown groove in central tube outside corresponding to above-mentioned and long annular groove bottom, in upper holddown groove, be fixed with retainer ring, the outside of retainer ring and the inner side of outer jacket casing are fitted together, outside, the lower end of jacket casing is installed with fixed cover by screw thread outside, the bottom of fixed cover is sleeved on the outside of central tube, there is lower holddown groove in the central tube outside that is positioned at urceolus cover bottom, in lower holddown groove, be installed with snap ring, have the cooperation platform corresponding with snap ring in the lower inside of fixed cover, the outer end of snap ring is positioned at and coordinates platform.
inside above-mentioned inner sliding sleeve below chute and between central tube outside, can be installed with the sealing ring together with being no less than, between the inner sliding sleeve outside below lower shear pin and outer jacket casing inner side, be installed with the sealing ring together with being no less than, between the central tube outside below retainer ring and outer jacket casing inner side, be installed with the sealing ring together with being no less than.
the utility model reasonable and compact in structure, easy to use, in the process being lowered at the utility model, in the time that outside of the present utility model is blocked by the rubble in the borehole wall, because slips self cannot open, make slips can not occur to sit in advance extension, avoided the utility model to occur to sit and hang in advance, ensured carrying out smoothly of construction operation.
Brief description of the drawings
the master that accompanying drawing 1 is the utility model most preferred embodiment looks half section structural representation.
accompanying drawing 2 is the structure for amplifying schematic diagram at A place in accompanying drawing 1
coding in accompanying drawing is respectively: cylinder centered by 1, 2 is outer jacket casing, 3 is inner sliding sleeve, 4 is lower shear pin, 5 is hydraulic cavities, 6 is hydraulic radial through hole, 7 is slips, 8 is upper pin, 9 is cover for seat, 10 is stroke platform, 11 is pawl piece, 12 is chute, 13 is arc spring, 14 is sleeve, 15 is setting ring, 16 is upper limit boss, 17 is packing element, 18 is slip ring, 19 is upper coordinating block, 20 is inner bushing ring, 21 is sealing ring, 22 is upper conical ring, 23 is lower conical ring, 24 is upper cutting ferrule, 25 is middle cutting ferrule, 26 is lower cutting ferrule, 27 is lower coordinating block, 28 is retainer ring, 29 is fixed cover, 30 is snap ring.
Detailed description of the invention
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1 to 2, this hanging packer comprises central tube 1, packing element 17 assemblies, outer jacket casing 2 and inner sliding sleeve 3, the lower inside of the lower outside of central tube 1 and outer jacket casing 2 is fixed together, the upper inner of jacket casing 2 has long annular groove outside, in long annular groove, be set with inner sliding sleeve 3, the upper outside of the top of outer jacket casing 2 and inner sliding sleeve 3 is fixedly installed togather by lower shear pin 4, between the bottom of inner sliding sleeve 3 and the bottom of long annular groove, there is spacing and form hydraulic cavities 5, on central tube 1, there is the hydraulic radial through hole 6 communicating with hydraulic cavities 5, be set with packing element 17 assemblies in central tube 1 outside that is positioned at inner sliding sleeve 3 and outer jacket casing 2 tops, be fixed with sleeve 14 in the upper outside of central tube 1, on sleeve 14, circumferentially there is the upper mounting groove that is no less than two, on sleeve 14 below upper mounting groove, there is the lower mounting groove upper and lower corresponding with going up separately mounting groove, be set with the narrow slips 7 in wide two ends, middle part in central tube 1 outside of the upper mounting groove upper and lower corresponding with every group and lower mounting groove, the top of slips 7 is fixedly mounted in mounting groove, the bottom of slips 7 is fixedly mounted in lower mounting groove, central tube 1 outside between sleeve 14 and packing element 17 assemblies by pin 8 be installed with the upper outside cover for seat 9 corresponding with slips 7 lower inside, outside, lower end in cover for seat 9 is fixed with stroke platform 10, between sleeve 14 and stroke platform 10, there is spacing.In the process being lowered at the utility model, in the time that outside of the present utility model is blocked by the rubble in the borehole wall, because slips 7 self cannot open, make slips 7 that extension can not occur to sit in advance, avoid the utility model to occur to sit and hang in advance, ensured carrying out smoothly of construction operation.
can according to actual needs, above-mentioned hanging packer be made further optimization and/or improvements:
as shown in accompanying drawing 1 to 2, at the central tube radially corresponding with lower shear pin 41 outside limited location groove, in stopper slot, be fixed with pawl piece 11, circumferentially there is crown pawl upward in the outside of pawl piece 11, have chute 12 in the inner side of inner sliding sleeve 3, the outer end of pawl piece 11 is positioned at chute 12.After moving up under the effect of inner sliding sleeve 3 in thrust, the setting of pawl piece 11 can prevent the downward movement of inner sliding sleeve 3 in certain sphere of gravity, has improved and has sat success rate and the validity of hanging.
as shown in accompanying drawing 1 to 2, jagged in slips 7 outsides between upper mounting groove and lower mounting groove, on breach, be fixed with the arc spring 13 of opening towards central tube 1 outside by securing member, the outside of the two ends of arc spring 13 and sleeve 14 offsets, there is upper limit boss 16 in the upper outside of central tube 1, upper limit boss 16 is fitted together with the top of sleeve 14, be set with at the lower outside of cover for seat 9 the setting ring 15 that longitudinal cross-section is inverted T shape, the upper outside of present seal ring 15 is fixedly installed togather by screw thread and sleeve 14, between present seal ring 15 and stroke platform 10, there is spacing.Arc spring 13 and securing member are existing known technology, and the setting of butterfly spring can prevent that slips 7 from hanging before pressure and stretch out not reaching to sit, and the setting of spacing is convenient to the up driving slips 7 of cover for seat 9 and is outwards opened, and slips 7 can be sat hang to operate.
as shown in accompanying drawing 1 to 2, packing element 17 assemblies comprise upper baffle ring, packing element 17, lower baffle ring and slip ring 18, erection loop platform on the upper end of packing element 17 arranged outside has, upper baffle ring is fixedly mounted on erection loop platform, there is lower erection loop platform in the lower end of packing element 17 arranged outside, lower baffle ring is fixedly mounted on lower erection loop platform, be fixed with coordinating block 19 on the top of upper baffle ring, be provided with the suit groove corresponding with upper coordinating block 19 in the bottom of cover for seat 9, upper coordinating block 19 is fixedly mounted in suit groove, the outside of the bottom of lower baffle ring and slip ring 18 is fitted together, there is liner groove inner side, middle part at packing element 17, in liner groove, be installed with inner bushing ring 20.The setting of inner bushing ring 20 can prevent that packing element 17 from abnormal expansion occurring under pressure.
as shown in accompanying drawing 1 to 2, upper baffle ring comprises conical ring 22 and lower conical ring 23, be fixed with coordinating block 19 on the top of upper conical ring 22, upper coordinating block 19 is fixedly mounted in suit groove, the upper outside of the lower inside of upper conical ring 22 and lower conical ring 23 is fitted together, lower baffle ring comprises cutting ferrule 24, middle cutting ferrule 25 and lower cutting ferrule 26, the upper inner of the lower outside of upper cutting ferrule 24 and middle cutting ferrule 25 is fitted together, there is suit ring platform in the outside, bottom of middle cutting ferrule 25, be fixed with the lower coordinating block 27 corresponding with being set with ring platform in the outside, top of lower cutting ferrule 26, lower coordinating block 27 is fixedly mounted in suit ring platform, the outside of the inner side of lower cutting ferrule 26 and slip ring 18 is fitted together.
as shown in accompanying drawing 1 to 2, holddown groove on central tube 1 outside corresponding with long annular groove bottom has, in upper holddown groove, be fixed with retainer ring 28, the inner side of the outside of retainer ring 28 and outer jacket casing 2 is fitted together, outside, the lower end of jacket casing 2 is installed with fixed cover 29 by screw thread outside, the bottom of fixed cover 29 is sleeved on the outside of central tube 1, there is lower holddown groove in central tube 1 outside that is positioned at urceolus and overlaps 2 bottoms, in lower holddown groove, be installed with snap ring 30, there is the cooperation platform corresponding with snap ring 30 in the lower inside of fixed cover 29, the outer end of snap ring 30 is positioned at and coordinates platform.The setting of retainer ring 28 and snap ring 30 can prevent that the pressure-acting of outer jacket casing 2 in hydraulic cavities 5 from issuing raw downward movement, has further ensured to sit the success rate of hanging operation.
as shown in accompanying drawing 1 to 2, between inner sliding sleeve 3 inner sides below chute 12 and central tube 1 outside, be installed with the sealing ring 21 together with being no less than, between inner sliding sleeve 3 outsides below lower shear pin 4 and outer jacket casing 2 inner sides, be installed with the sealing ring 21 together with being no less than, between central tube 1 outside below retainer ring 28 and outer jacket casing 2 inner sides, be installed with the sealing ring 21 together with being no less than.The setting of sealing ring 21 can improve sits the sealing performance of hanging in operation process.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the use procedure of the utility model most preferred embodiment: first, central tube 1 and external tubing string are fixedly installed togather, in the time that the utility model is lowered to setting position, in central tube 1, squeeze into pressure liquid, pressure liquid enters in hydraulic cavities 5 by hydraulic radial through hole 6, then, inner sliding sleeve 3 is subject to enough large thrust upwards under the effect of pressure liquid, in the time that thrust reaches certain value, lower shear pin 4 is cut off, inner sliding sleeve 3 gives slip ring 18 thrust upwards, slip ring 18 by thrust indirect transfer to packing element 17, under the effect of thrust, there is longitudinal compression in packing element 17, after packing element 17 compressions, thrust is passed to cover for seat 9 by packing element 17, in the time that cover for seat 9 is subject to enough large thrust, upper pin 8 is cut off, cover for seat 9 is up and impel the upper and lower of slips 7 radially to stretch out laterally, finally, slips 7 completes to sit hangs operation.
Claims (10)
1. a hanging packer, it is characterized in that comprising central tube, packing element assembly, outer jacket casing and inner sliding sleeve, the lower outside of central tube and the lower inside of outer jacket casing are fixed together, the upper inner of jacket casing has long annular groove outside, in long annular groove, be set with inner sliding sleeve, the top of outer jacket casing and the upper outside of inner sliding sleeve are fixedly installed togather by lower shear pin, between the bottom of inner sliding sleeve and the bottom of long annular groove, there is spacing and form hydraulic cavities, on central tube, there is the hydraulic radial through hole communicating with hydraulic cavities, be set with packing element assembly in the central tube outside that is positioned at inner sliding sleeve and outer jacket casing top, upper outside at central tube is fixed with sleeve, on sleeve, circumferentially there is the upper mounting groove that is no less than two, on sleeve below upper mounting groove, there is the lower mounting groove upper and lower corresponding with going up separately mounting groove, be set with the narrow slips in wide two ends, middle part in the central tube outside of the upper mounting groove upper and lower corresponding with every group and lower mounting groove, the top of slips is fixedly mounted in mounting groove, the bottom of slips is fixedly mounted in lower mounting groove, the central tube outside between sleeve and packing element assembly by pin be installed with the upper outside cover for seat corresponding with slips lower inside, outside, lower end in cover for seat is fixed with stroke platform, between sleeve and stroke platform, there is spacing.
2. hanging packer according to claim 1, it is characterized in that limited location groove outside the central tube radially corresponding with lower shear pin, in stopper slot, be fixed with pawl piece, circumferentially there is crown pawl upward in the outside of pawl piece, there is chute inner side at inner sliding sleeve, and the outer end of pawl piece is positioned at chute.
3. hanging packer according to claim 1 and 2, it is characterized in that outside the slips between upper mounting groove and lower mounting groove jagged, on breach, be fixed with the arc spring of opening towards central tube outside by securing member, the two ends of arc spring and the outside of sleeve offset, there is upper limit boss in the upper outside of central tube, the top of upper limit boss and sleeve is fitted together, be set with at the lower outside of cover for seat the setting ring that longitudinal cross-section is inverted T shape, the upper outside of present seal ring is fixedly installed togather by screw thread and sleeve, between present seal ring and stroke platform, there is spacing.
4. hanging packer according to claim 1 and 2, it is characterized in that packing element assembly comprises upper baffle ring, packing element, lower baffle ring and slip ring, erection loop platform on the upper end of packing element arranged outside has, upper baffle ring is fixedly mounted on erection loop platform, there is lower erection loop platform in the lower end of packing element arranged outside, lower baffle ring is fixedly mounted on lower erection loop platform, be fixed with coordinating block on the top of upper baffle ring, be provided with the suit groove corresponding with upper coordinating block in the bottom of cover for seat, upper coordinating block is fixedly mounted in suit groove, the bottom of lower baffle ring and the outside of slip ring are fitted together, there is liner groove inner side, middle part at packing element, in liner groove, be installed with inner bushing ring.
5. hanging packer according to claim 3, it is characterized in that packing element assembly comprises upper baffle ring, packing element, lower baffle ring and slip ring, erection loop platform on the upper end of packing element arranged outside has, upper baffle ring is fixedly mounted on erection loop platform, there is lower erection loop platform in the lower end of packing element arranged outside, lower baffle ring is fixedly mounted on lower erection loop platform, be fixed with coordinating block on the top of upper baffle ring, be provided with the suit groove corresponding with upper coordinating block in the bottom of cover for seat, upper coordinating block is fixedly mounted in suit groove, the bottom of lower baffle ring and the outside of slip ring are fitted together, there is liner groove inner side, middle part at packing element, in liner groove, be installed with inner bushing ring.
6. hanging packer according to claim 4, it is characterized in that upper baffle ring comprises conical ring and lower conical ring, be fixed with coordinating block on the top of upper conical ring, upper coordinating block is fixedly mounted in suit groove, the upper outside of the lower inside of upper conical ring and lower conical ring is fitted together, lower baffle ring comprises cutting ferrule, middle cutting ferrule and lower cutting ferrule, the lower outside of upper cutting ferrule and the upper inner of middle cutting ferrule are fitted together, there is suit ring platform in the outside, bottom of middle cutting ferrule, be fixed with the lower coordinating block corresponding with being set with ring platform in the outside, top of lower cutting ferrule, lower coordinating block is fixedly mounted in suit ring platform, the inner side of lower cutting ferrule and the outside of slip ring are fitted together.
7. hanging packer according to claim 5, it is characterized in that upper baffle ring comprises conical ring and lower conical ring, be fixed with coordinating block on the top of upper conical ring, upper coordinating block is fixedly mounted in suit groove, the upper outside of the lower inside of upper conical ring and lower conical ring is fitted together, lower baffle ring comprises cutting ferrule, middle cutting ferrule and lower cutting ferrule, the lower outside of upper cutting ferrule and the upper inner of middle cutting ferrule are fitted together, there is suit ring platform in the outside, bottom of middle cutting ferrule, be fixed with the lower coordinating block corresponding with being set with ring platform in the outside, top of lower cutting ferrule, lower coordinating block is fixedly mounted in suit ring platform, the inner side of lower cutting ferrule and the outside of slip ring are fitted together.
8. hanging packer according to claim 1 and 2, it is characterized in that there is upper holddown groove in the central tube outside corresponding with long annular groove bottom, in upper holddown groove, be fixed with retainer ring, the outside of retainer ring and the inner side of outer jacket casing are fitted together, outside, the lower end of jacket casing is installed with fixed cover by screw thread outside, the bottom of fixed cover is sleeved on the outside of central tube, there is lower holddown groove in the central tube outside that is positioned at urceolus cover bottom, in lower holddown groove, be installed with snap ring, there is the cooperation platform corresponding with snap ring in the lower inside of fixed cover, the outer end of snap ring is positioned at and coordinates platform.
9. hanging packer according to claim 7, it is characterized in that there is upper holddown groove in the central tube outside corresponding with long annular groove bottom, in upper holddown groove, be fixed with retainer ring, the outside of retainer ring and the inner side of outer jacket casing are fitted together, outside, the lower end of jacket casing is installed with fixed cover by screw thread outside, the bottom of fixed cover is sleeved on the outside of central tube, there is lower holddown groove in the central tube outside that is positioned at urceolus cover bottom, in lower holddown groove, be installed with snap ring, there is the cooperation platform corresponding with snap ring in the lower inside of fixed cover, the outer end of snap ring is positioned at and coordinates platform.
10. hanging packer according to claim 9, it is characterized in that being installed with the sealing ring together with being no less than inside the inner sliding sleeve below chute and between outside central tube, between the inner sliding sleeve outside below lower shear pin and outer jacket casing inner side, be installed with the sealing ring together with being no less than, between the central tube outside below retainer ring and outer jacket casing inner side, be installed with the sealing ring together with being no less than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056980.2U CN203742530U (en) | 2014-01-29 | 2014-01-29 | Suspension packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056980.2U CN203742530U (en) | 2014-01-29 | 2014-01-29 | Suspension packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742530U true CN203742530U (en) | 2014-07-30 |
Family
ID=51342347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420056980.2U Expired - Fee Related CN203742530U (en) | 2014-01-29 | 2014-01-29 | Suspension packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742530U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Experimental device for rubber cylinder of compression packer |
| CN105257239A (en) * | 2015-10-26 | 2016-01-20 | 中国石油集团西部钻探工程有限公司 | External casing packer |
| CN108547589A (en) * | 2018-02-07 | 2018-09-18 | 中国石油集团西部钻探工程有限公司 | The electronic method for setting flow string under recyclable hanging packer no killing well |
-
2014
- 2014-01-29 CN CN201420056980.2U patent/CN203742530U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Experimental device for rubber cylinder of compression packer |
| CN105257239A (en) * | 2015-10-26 | 2016-01-20 | 中国石油集团西部钻探工程有限公司 | External casing packer |
| CN105257239B (en) * | 2015-10-26 | 2018-10-09 | 中国石油集团西部钻探工程有限公司 | External packer of pipe |
| CN108547589A (en) * | 2018-02-07 | 2018-09-18 | 中国石油集团西部钻探工程有限公司 | The electronic method for setting flow string under recyclable hanging packer no killing well |
| CN108547589B (en) * | 2018-02-07 | 2020-02-21 | 中国石油集团西部钻探工程有限公司 | Method for producing tubular column without killing well by electric setting recoverable hanging packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140730 Termination date: 20210129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |