CN202866742U - Self-locking well flushing packer - Google Patents
Self-locking well flushing packer Download PDFInfo
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- CN202866742U CN202866742U CN 201220614784 CN201220614784U CN202866742U CN 202866742 U CN202866742 U CN 202866742U CN 201220614784 CN201220614784 CN 201220614784 CN 201220614784 U CN201220614784 U CN 201220614784U CN 202866742 U CN202866742 U CN 202866742U
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Abstract
The utility model discloses a self-locking well flushing packer for an oil field water injection well. The self-locking well flushing packer comprises a well flushing piston (6), an upper rubber sleeve base (7), a rubber sleeve assembly (8), a lower rubber sleeve base (11), a locking ring (14), a lock sleeve (15), an upper piston (16), a piston base (17), a lower piston (18), a set shear pin (19) and a fixed joint (20). A groove is formed in an outer circle of an upper joint (1), and a convex step is arranged at the lower end of the upper joint. A ring block of a fluke assembly (4) is connected with a rubber ring in an injection molding mode. A thread is arranged in an inner hole of a limiting sleeve (5). A group of sealing rings are arranged on the outer circle. An inner boss is arranged in an inner hole of a sealing tube (3) and next to a lower inner dovetail groove. A group of radial through holes (21) are formed in an outer thread of the upper end of a center tube (9). Oblique angles are arranged at the two ends of an inner circle and an outer circle of a locking block (12) and located in a through groove of an outer tube (10). An inner hole of a locking ring base (13) is a big-end-up stepped bore. An inner dovetail groove is formed at the upper end. A group of ring groove inner lock installing rings (14) are arranged on the outer circle. The elf-locking well flushing packer for the oil field water injection well has the advantages of being simple in structure and good in self-locking performance.
Description
Technical field:
The utility model relates to a kind of self-locking well packer capable of flushing well, is used for water injection well in oil fields, belongs to the oil field well tool-class.
Background technology:
At present, the many specifications of well packer capable of flushing well kind that the oil field is used for the well water filling are many, the patent No.: 20102020253872.6 provide a kind of Self-locking packer, though structural principle is novel, but have the following disadvantages: the one, the upper end prevents that string creep from causing the complex structure of the automatic deblocking of packer, and poor reliability; The 2nd, be difficult to guarantee that self-locking property is unstable that causing packing element to seal withstand voltage extent has gap in the flexible size processing of self-locking device.
The utility model content:
The purpose of this utility model is: provides a kind of simple in structure, can effectively prevent the automatic deblocking of packer, and the self-locking flushing packer of self-locking device stable performance.
The utility model is achieved in that the utility model is by top connection, the deblocking shear pin, sealed tube, the anchor fluke assembly, stop collar, the well-flushing piston, upper glue tube base, the packing element assembly, central tube, outer tube, the lower rubber cylinder seat, lock dog, the lock ring seat, lock ring, lock tube, upper piston, piston seat, lower piston, set shear pin, anchor tip forms, there is an oil pipe internal thread top connection upper end, there is an annular groove at the cylindrical middle part, there are boss rank the cylindrical lower end, there is an internal thread its endoporus lower end, the major diameter place of anchor fluke assembly is the fan-shaped annulus piece that all there is the oblique angle at one group of cylindrical two ends, the minor diameter place is a rubber ring, one group of fan-shaped annulus piece at major diameter place and the rubber ring at minor diameter place are formed by connecting by injection moulding, the endoporus of stop collar has an internal thread, one group of in-built one group of sealing ring of seal groove is arranged on its cylindrical, one group of in-built one group of sealing ring of seal groove is arranged respectively on the endoporus of well-flushing piston and the cylindrical, its lower end is that a cone has the embedded lip ring of an annular groove at the conical surface, there is an inner convex platform endoporus upper end of sealed tube, there is an interior dovetail groove middle and upper part, there is an internal thread lower end, there is one group of tapped through hole the upper end of its cylindrical, there are one group of radial direction through hole or groove in the bottom, there are boss rank at the cylindrical middle part of central tube, there is an external screw thread upper end, there is one group of radial direction through hole at externally threaded middle part, there is an oil tube external thread its lower end, upper end at central tube is set with the well-flushing piston from bottom to top, stop collar is threaded, suit anchor fluke assembly and the top connection that is threaded, sealed tube is contained in top connection, the anchor fluke assembly, on the cylindrical of spacing kink and well-flushing piston, the deblocking shear pin is installed in the screwed hole and the annular groove in the middle part of the top connection cylindrical of sealed tube upper end, upper glue tube base endoporus upper end is an inner conical surface, one internal thread is arranged at the bottom, its cylindrical upper end has an external screw thread to be connected with the internal thread of sealed tube lower end, there is an external screw thread upper end of outer tube cylindrical, on the bottom, one group of radial direction through hole or groove are respectively arranged down, outer tube sleeve is contained on the cylindrical of central tube, the external screw thread of upper end is connected with the internal thread of upper glue tube base, one group of lock dog is installed) in bottom radial direction through hole or groove, in the lock dog, the outside is arc surface, all there is the oblique angle at the cylindrical two ends, there is an external screw thread cylindrical lower end of lower rubber cylinder seat, internal diameter is a through hole, the endoporus of lock ring seat is up big and down small shoulder hole, there is an interior dovetail groove in hole, large footpath in the upper end, one group of in-built lock ring of annular groove is arranged at its cylindrical bottom, lock ring is one group of opening annulus, there is an oblique angle its cylindrical lower end, lock tube endoporus upper, there is respectively an internal thread lower end, there are one group of radial direction through hole or groove in the upper end, one group of circular saw button is arranged at the endoporus bottom, on the cylindrical of outer tube, be set with the packing element assembly with this from top to bottom, the top of lower rubber cylinder seat and lock ring seat, the bottom of lock ring seat is sleeved on the cylindrical middle part of central tube, lock tube is sleeved on lock ring seat and the lock ring cylindrical, the internal thread of its upper end is connected with the external screw thread of lower rubber cylinder seat lower end, the upper end of upper piston has the external screw thread lower end that internal thread is arranged, its top is threaded with the lower end of lock tube after being sleeved on the central tube, the upper end of lower piston has the external screw thread lower end that internal thread is arranged, one group of screwed hole is arranged at its cylindrical bottom, the internal thread of piston seat is connected with central tube, the top of lower piston is sleeved on and is connected with the internal thread of upper piston lower end after central tube is connected with piston seat, the cylindrical of anchor tip is up-small and down-big notch cuttype, little cylindrical on top has an annular groove, its endoporus has internal thread to be connected with central tube, the upper end of cylindrical is inserted into the lower end of lower piston, sets in the annular groove that shear pin is installed in the screwed hole of lower piston and anchor tip.
The beneficial effects of the utility model are, the stable performance of packing element sealing self-locking device, and the seal pressure differential that bears is large, can improve water-injection efficiency, takes full advantage of stratum energy, has certain economic benefit.
Description of drawings:
Fig. 1 is structural representation of the present utility model.Among Fig. 1: 1-top connection, 2-deblocking shear pin, 3-sealed tube, 4-anchor fluke assembly, 5-stop collar, 6-well-flushing piston, the upper glue tube base of 7-, 8-packing element assembly, 9-central tube, the 10-outer tube, 11-lower rubber cylinder seat, 12-lock dog, 13-lock ring seat, 14-lock ring, 15-lock tube, the 16-upper piston, 17-piston seat, 18-lower piston, 19-sets shear pin, 20-anchor tip, 21-radial direction through hole
The specific embodiment:
Below in conjunction with accompanying drawing embodiment of the present utility model is further elaborated: the utility model is by top connection (1), deblocking shear pin (2), sealed tube (3), anchor fluke assembly (4), stop collar (5), well-flushing piston (6), upper glue tube base (7), packing element assembly (8), central tube (9), outer tube (10), lower rubber cylinder seat (11), lock dog (12), lock ring seat (13), lock ring (14), lock tube (15), upper piston (16), piston seat (17), lower piston (18), set shear pin (19), anchor tip (20) forms, there is an oil pipe internal thread top connection (1) upper end, there is an annular groove at the cylindrical middle part, there are boss rank the cylindrical lower end, there is an internal thread its endoporus lower end, the major diameter place of anchor fluke assembly (4) is the fan-shaped annulus piece that all there is the oblique angle at one group of cylindrical two ends, the minor diameter place is a rubber ring, one group of fan-shaped annulus piece at major diameter place and the rubber ring at minor diameter place are formed by connecting by injection moulding, the endoporus of stop collar (5) has an internal thread, one group of in-built one group of sealing ring of seal groove is arranged on its cylindrical, one group of in-built one group of sealing ring of seal groove is arranged respectively on the endoporus of well-flushing piston (6) and the cylindrical, its lower end is that a cone has the embedded lip ring of an annular groove at the conical surface, there is an inner convex platform endoporus upper end of sealed tube (3), there is an interior dovetail groove middle and upper part, there is an internal thread lower end, there is one group of tapped through hole the upper end of its cylindrical, there are one group of radial direction through hole or groove in the bottom, there are boss rank at the cylindrical middle part of central tube (9), there is an external screw thread upper end, there is one group of radial direction through hole (21) at externally threaded middle part, there is an oil tube external thread its lower end, be set with well-flushing piston (6) from bottom to top in the upper end of central tube (9), stop collar (5) is threaded, suit anchor fluke assembly (4) and the top connection that is threaded (1), sealed tube (3) is sleeved on top connection (1), anchor fluke assembly (4), on the cylindrical of spacing kink (5) and well-flushing piston (6), deblocking shear pin (2) is installed in the screwed hole and the annular groove in the middle part of top connection (1) cylindrical of sealed tube (3) upper end, upper glue tube base (7) endoporus upper end is an inner conical surface, one internal thread is arranged at the bottom, its cylindrical upper end has an external screw thread to be connected with the internal thread of sealed tube (3) lower end, there is an external screw thread upper end of outer tube (10) cylindrical, on the bottom, one group of radial direction through hole or groove are respectively arranged down, outer tube (10) is sleeved on the cylindrical of central tube (9), the external screw thread of upper end is connected with the internal thread of upper glue tube base (7), one group of lock dog (12) is installed in bottom radial direction through hole or groove, in the lock dog (12), the outside is arc surface, all there is the oblique angle at the cylindrical two ends, there is an external screw thread cylindrical lower end of lower rubber cylinder seat (11), internal diameter is a through hole, the endoporus of lock ring seat (13) is up big and down small shoulder hole, there is an interior dovetail groove in hole, large footpath in the upper end, one group of in-built lock ring of annular groove (14) is arranged at its cylindrical bottom, lock ring (14) is one group of opening annulus, there is an oblique angle its cylindrical lower end, lock tube (15) endoporus upper, there is respectively an internal thread lower end, there are one group of radial direction through hole or groove in the upper end, one group of circular saw button is arranged at the endoporus bottom, on the cylindrical of outer tube (10), be set with packing element assembly (8) with this from top to bottom, the top of lower rubber cylinder seat (11) and lock ring seat (13), the bottom of lock ring seat (13) is sleeved on the cylindrical middle part of central tube (9), lock tube (15) is sleeved on lock ring seat (13) and lock ring (14) cylindrical, the internal thread of its upper end is connected with the external screw thread of lower rubber cylinder seat (11) lower end, the upper end of upper piston (16) has the external screw thread lower end that internal thread is arranged, its top is threaded with the lower end of lock tube (15) after being sleeved on the central tube (9), the upper end of lower piston (18) has the external screw thread lower end that internal thread is arranged, one group of screwed hole is arranged at its cylindrical bottom, the internal thread of piston seat (17) is connected with central tube (9), the top of lower piston (18) is sleeved on central tube (9) and is connected 17 with piston seat) upward be connected with the internal thread of upper piston (16) lower end afterwards, the cylindrical of anchor tip (20) is up-small and down-big notch cuttype, little cylindrical on top has an annular groove, its endoporus has internal thread to be connected with central tube (9), the upper end of cylindrical is inserted into the lower end of lower piston (18), sets in the annular groove that shear pin (19) is installed in the screwed hole of lower piston (18) and anchor tip (20).
Claims (1)
1. self-locking flushing packer, by well-flushing piston (6), upper glue tube base (7), packing element assembly (8), lower rubber cylinder seat (11), lock ring (14), lock tube (15), upper piston (16), piston seat (17), lower piston (18), set shear pin (19), anchor tip (20) forms, it is characterized in that: there is an annular groove at top connection (1) cylindrical middle part, there are boss rank the cylindrical lower end, there is an internal thread endoporus lower end, the major diameter place of anchor fluke assembly (4) is the fan-shaped annulus piece that all there is the oblique angle at one group of cylindrical two ends, the minor diameter place is a rubber ring, one group of fan-shaped annulus piece at major diameter place and the rubber ring at minor diameter place are formed by connecting by injection moulding, the endoporus of stop collar (5) has an internal thread, one group of in-built one group of sealing ring of seal groove is arranged on its cylindrical, there is an inner convex platform endoporus upper end of sealed tube (3), there is an interior dovetail groove middle and upper part, there is an internal thread lower end, there is one group of tapped through hole the upper end of its cylindrical, there are one group of radial direction through hole or groove in the bottom, there are boss rank at the cylindrical middle part of central tube (9), there is an external screw thread upper end, there is one group of radial direction through hole (21) at externally threaded middle part, there is an oil tube external thread its lower end, stop collar (5) from bottom to top is threaded in the upper end of central tube (9), suit anchor fluke assembly (4) and the top connection that is threaded (1), sealed tube (3) is sleeved on top connection (1), on the cylindrical of anchor fluke assembly (4) and stop collar (5), deblocking shear pin (2) is installed in the annular groove of the screwed hole of sealed tube (3) upper end and top connection (1) cylindrical, there are one group of radial direction through hole or groove in the bottom of outer tube (10) cylindrical, be sleeved on the cylindrical of central tube (9), one group of lock dog (12) is installed in the radial direction through hole of bottom or groove, in the lock dog (12), the outside is arc surface, all there is the oblique angle at the cylindrical two ends, the endoporus of lock ring seat (13) is up big and down small shoulder hole, there is an interior dovetail groove in hole, large footpath in the upper end, one group of in-built lock ring of annular groove (14) is arranged at its cylindrical bottom, on the cylindrical of outer tube (10), be set with packing element assembly (8) from top to bottom, the top of lower rubber cylinder seat (11) and lock ring seat (13), the bottom of lock ring seat (13) is sleeved on the cylindrical middle part of central tube (9), lock tube (15) is sleeved on lock ring seat (13) and lock ring (14) cylindrical, and the internal thread of its upper end is connected with the external screw thread of lower rubber cylinder seat (11) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614784 CN202866742U (en) | 2012-11-20 | 2012-11-20 | Self-locking well flushing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614784 CN202866742U (en) | 2012-11-20 | 2012-11-20 | Self-locking well flushing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866742U true CN202866742U (en) | 2013-04-10 |
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ID=48033468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220614784 Expired - Fee Related CN202866742U (en) | 2012-11-20 | 2012-11-20 | Self-locking well flushing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051643A (en) * | 2017-09-22 | 2020-04-21 | 株式会社吴羽 | Downhole tool component and method of making same |
-
2012
- 2012-11-20 CN CN 201220614784 patent/CN202866742U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051643A (en) * | 2017-09-22 | 2020-04-21 | 株式会社吴羽 | Downhole tool component and method of making same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131120 |