CN201696037U - Directional ball seat - Google Patents
Directional ball seat Download PDFInfo
- Publication number
- CN201696037U CN201696037U CN2010202539061U CN201020253906U CN201696037U CN 201696037 U CN201696037 U CN 201696037U CN 2010202539061 U CN2010202539061 U CN 2010202539061U CN 201020253906 U CN201020253906 U CN 201020253906U CN 201696037 U CN201696037 U CN 201696037U
- Authority
- CN
- China
- Prior art keywords
- ball seat
- valve ball
- outer pipe
- endoporus
- cylindrical
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002332 oil field water Substances 0.000 abstract 1
- 210000000664 rectum Anatomy 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Landscapes
- Taps Or Cocks (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a directional ball seat which is applicable to an oil field water injection well. The directional ball seat consists of an oil pipe collar (1), an outer pipe (2), a guide sleeve (3), a sealing ring (4), a valve ball seat (5) and a lower joint (6), wherein the upper end of the outer pipe (2) is provided with external screw thread; the excircle of the outer pipe (2) is the cylindrical surface with the upper part being small and the lower part being big; an inner hole of the outer pipe (2) is the step hole with the upper part being small and the lower part being big; the lowest part of the outer pipe (2) is provided with internal screw thread; the guide sleeve (3) and the valve ball seat (5) are sequentially arranged in the inner hole of the outer pipe (2); the guide sleeve (3) is cylindrical, and the upper end of the guide sleeve (3) is provided with a conical surface; the valve ball seat (5) is ring-shaped, and a sealing ring slot is arranged on the excircle of the valve ball seat (5) and is internally provided with the sealing ring (4); the upper end of the inner hole of the valve ball seat (5) is provided with an arc surface; the lower end of an inner hole of the lower joint (6) is provided with a conical surface, the excircle of the lower joint (6) is the cylindrical surface, and the upper end part of the excircle is provided with external screw thread that is connected with the internal screw thread of the outer pipe (2); and the inner step surface of the outer pipe (2) is in contact with the guide sleeve (3), the upper and the lower end surfaces of the valve ball seat (5) and the upper end surface of the lower joint (6). The directional ball seat has the characteristics of long service life, high water injection efficiency and the like.
Description
One, technical field:
The utility model relates to a kind of directed ball seat, is a kind of downhole tool that is used for water injection well in oil fields.
Two, background technology:
At present, oil field not stratified water injection well light pipe water filling, especially to the artificial bottom of a well from oil reservoir the near and very thin well of oil reservoir, the position that requires light pipe to go into the well is accurate, need to measure the degree of depth of tail pipe, definite distance from oil reservoir, sand face and artificial bottom of a well judges whether water injection string misses or sand buries, and needs to use a kind of downhole tool.The patent No. provides a kind of instrument for 200920020340.5, though structure is simple, and the easily long-pending sand in positioning core top, fuse is difficult to pull out; Fuse upper end sealing surface easy-to-rust easily causes sealing surface to lose efficacy; The structural limitations of fuse the interior latus rectum size of fuse, latus rectum is less in causing, and increases the water filling flow resistance, increases water injection pressure, reduces water-injection efficiency.
Three, summary of the invention:
The purpose of this utility model is: provide a kind of simple in structure, need not the directed ball seat that pulling fuse, sealing surface are difficult for losing efficacy, interior latus rectum is bigger.
The utility model is achieved in that the utility model is by tubing coupling, outer tube, fairlead, sealing ring, valve ball seat and lower contact are formed, the oil pipe internal thread of tubing coupling lower end connects the oil tube external thread of outer tube upper end, the cylindrical of outer tube is the up-small and down-big face of cylinder, its endoporus is up-small and down-big shoulder hole from top to bottom, the endoporus foot has an internal thread, the fairlead of packing into successively from top to bottom in the pipe orifice outside, the valve ball seat, fairlead is circular, there is a taper seat its upper end, the valve ball seat also is circular, its cylindrical is provided with the ring packing ring recess, built-in ring, there is an arc surface upper end of the endoporus of valve ball seat, the endoporus of lower contact is an inner via hole, and there is a taper seat endoporus lower end, and its cylindrical is the face of cylinder, its upper end is provided with external screw thread and is connected the interior step surface and the fairlead of outer tube with the internal thread of outer tube lower end, the upper and lower end face of valve ball seat contacts with the upper surface of lower contact.
The utility model beneficial effect is: need not the pulling fuse, liquid flowing resistance is little, and sealing surface is difficult for losing efficacy long service life.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Among Fig. 1: 1-tubing coupling, 2-outer tube, 3-fairlead 4-sealing ring, 5-valve ball seat, 6-lower contact
Five, embodiment:
Below in conjunction with accompanying drawing embodiment of the present utility model is further elaborated:
The utility model is by tubing coupling (1), outer tube (2), fairlead (3), sealing ring (4), valve ball seat (5) and lower contact (6) are formed, the oil pipe internal thread of tubing coupling (1) lower end connects the oil tube external thread of outer tube (2) upper end, the cylindrical of outer tube (2) is the up-small and down-big face of cylinder, its endoporus is up-small and down-big shoulder hole from top to bottom, the endoporus foot has an internal thread, the fairlead (3) of in outer tube (2) endoporus, packing into successively from top to bottom, valve ball seat (5), fairlead (3) is circular, there is a taper seat its upper end, valve ball seat (5) also is circular, its cylindrical is provided with the ring packing ring recess, built-in ring (4), there is a circular arc sealing surface upper end of the endoporus of valve ball seat (5), the endoporus of lower contact (6) is an inner via hole, there is a taper seat endoporus lower end, its cylindrical is the face of cylinder, its upper end is provided with external screw thread and is connected the interior step surface of outer tube (2) and fairlead (3) with the internal thread of outer tube (2) lower end, the upper and lower end face of valve ball seat (5) contacts with the upper surface of lower contact (6).
Claims (1)
1. directed ball seat, it is by tubing coupling (1), outer tube (2), fairlead (3), sealing ring (4), valve ball seat (5) and lower contact (6) are formed, it is characterized in that: there is oil tube external thread outer tube (2) upper end, its cylindrical is the up-small and down-big face of cylinder, endoporus is up-small and down-big shoulder hole from top to bottom, the endoporus foot has an internal thread, the fairlead (3) of in outer tube (2) endoporus, packing into successively from top to bottom, valve ball seat (5), fairlead (3) is circular, there is a taper seat its upper end, valve ball seat (5) also is circular, its cylindrical is provided with the ring packing ring recess, built-in ring (4), there is an arc surface endoporus upper end of valve ball seat (5), and the endoporus of lower contact (6) is an inner via hole, there is a taper seat endoporus lower end, its cylindrical is the face of cylinder, and the upper end of cylindrical is provided with external screw thread and is connected the interior step surface of outer tube (2) and fairlead (3) with the internal thread of outer tube (2) lower end, the upper and lower end face of valve ball seat (5) contacts with the upper surface of lower contact (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539061U CN201696037U (en) | 2010-07-03 | 2010-07-03 | Directional ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202539061U CN201696037U (en) | 2010-07-03 | 2010-07-03 | Directional ball seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696037U true CN201696037U (en) | 2011-01-05 |
Family
ID=43397277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202539061U Expired - Fee Related CN201696037U (en) | 2010-07-03 | 2010-07-03 | Directional ball seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696972A (en) * | 2016-01-20 | 2016-06-22 | 中国石油化工股份有限公司 | Erosion-resistant sliding sleeve |
| CN105696987A (en) * | 2016-05-01 | 2016-06-22 | 中国石油化工股份有限公司 | Water distributor for casing patching well |
-
2010
- 2010-07-03 CN CN2010202539061U patent/CN201696037U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696972A (en) * | 2016-01-20 | 2016-06-22 | 中国石油化工股份有限公司 | Erosion-resistant sliding sleeve |
| CN105696972B (en) * | 2016-01-20 | 2018-03-30 | 中国石油化工股份有限公司 | A kind of erosion resistance sliding sleeve |
| CN105696987A (en) * | 2016-05-01 | 2016-06-22 | 中国石油化工股份有限公司 | Water distributor for casing patching well |
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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: 20110105 Termination date: 20110703 |