CN203476285U - Sliding sleeve switch - Google Patents
Sliding sleeve switch Download PDFInfo
- Publication number
- CN203476285U CN203476285U CN201320633263.7U CN201320633263U CN203476285U CN 203476285 U CN203476285 U CN 203476285U CN 201320633263 U CN201320633263 U CN 201320633263U CN 203476285 U CN203476285 U CN 203476285U
- Authority
- CN
- China
- Prior art keywords
- switch
- switch body
- joint
- sliding sleeve
- positive cover
- 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
- 238000003754 machining Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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Abstract
The utility model discloses a sliding sleeve switch which comprises a coupling, a joint, a switch body, an oil pumping rod and a tool. The oil pumping rod and the joint are formed integrally, the lower portion of the oil pumping rod is connected with the tool, the inner diameter of the switch body is larger than the outer diameter of the joint and smaller than the outer diameter of the coupling, the oil pumping rod is sleeved with the switch body, the joint is connected with the coupling, the diameter of the lower end of the switch body is larger than the diameter of the upper end of the switch body, a communication groove is formed in the switch body, internal threads are arranged on the upper portion of the switch body, the internal threads are connected with the external threads of a left centering sleeve and the external threads of a right centering sleeve, the left centering sleeve and the right centering sleeve are formed by the fact that threads are machined on the cylindrical external portion, and then the cylindrical external portion is divided into two portions, centering bosses are arranged inside the left centering sleeve and the right centering sleeve, the centering bosses are matched with the oil pumping rod, the switch body is centered by the left centering sleeve and the right centering sleeve, the switch body is even in stress when the switch body pushes a sliding sleeve, the sliding sleeve can be flexibly opened, and the tool matched with the sliding sleeve is in the normal working state.
Description
Technical field
The utility model is the device on oil field well instrument, is a kind of sliding sleeve switch.
Background technology:
Oilfield oil well downhole tool kind is more, have on the instrument of a type sliding sleeve has been installed, after need to being lowered to sucker rod, open it, the way of opening at present sliding sleeve has two kinds, and a kind of method is to open with oil pump piston, because end construction and the downhole tool of piston do not match, cause sliding sleeve not open, as supporting in pistons end improved with downhole tool, each producer that supplies is difficult to coordinate, and cannot realize; Another kind method is on pumpingh well, to use screwed connection one joint, because joint external diameter is larger, can affect overcurrent, if employing is connected on rod string, the way of a switch contacts can exist the problem of insufficient strength, has reduced the reliability of oil pumping system.Chinese patent 200820174827.4 < < sliding sleeve switch > >, can meet the requirement of switching sliding sleeve, but between its sliding sleeve switch 2 and the body of rod of sucker rod 3, there is larger space, sliding sleeve switch 2 can not be in center position on the body of rod of sucker rod 3, while there will be sliding sleeve switch 2 to promote well inner sliding sleeve, the problem of unbalance stress, causes well inner sliding sleeve not open.
Summary of the invention
The purpose of this utility model is a kind of sliding sleeve switch of design, can open flexibly sliding sleeve, and assurance instrument is in normal operating conditions.
The purpose of this utility model is achieved in that and comprises box cupling, joint, switch, sucker rod, instrument, sucker rod and joint are one, sucker rod bottom is connected with instrument, the external diameter that the internal diameter of switch is greater than joint is less than the external diameter of box cupling, switch sleeve is contained on sucker rod, joint is connected with box cupling, the lower end diameter of switch is greater than upper end diameter, switch Shang You UNICOM groove, internal thread is arranged at the top of switch, described internal thread is connected with the external screw thread of left supporting positive cover and right supporting positive cover, left supporting positive cover is to be two bodies of cutting open after machining screw on cylinder by outside with right supporting positive cover, there is righting boss left supporting positive cover and right supporting positive cover inside, described righting boss coordinates with sucker rod.
The beneficial effects of the utility model are: switch is by left supporting positive cover and right supporting positive cover righting, stressed even while making switch promote sliding sleeve, can open flexibly sliding sleeve, makes the instrument supporting with sliding sleeve in normal operating conditions.
Accompanying drawing explanation
Accompanying drawing 1 is the assembled view of the utility model embodiment.
Accompanying drawing 2 is the profiles after cutting open from A-A in accompanying drawing 1.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As seen from the figure, embodiment of the present utility model comprises left supporting positive cover 1, box cupling 2, joint 3, right supporting positive cover 4, switch 6, sucker rod 7, instrument 8, sucker rod 7 is one with joint 3, sucker rod 7 bottoms are connected with instrument 8, the external diameter that the internal diameter of switch 6 is greater than joint 3 is less than the external diameter of box cupling 2, switch 6 is sleeved on sucker rod 7, joint 3 is connected with box cupling 2, switch 6 can only be moved between box cupling 2 and instrument 8, the lower end diameter of switch 6 is greater than upper end diameter, switch 6 Shang You UNICOM grooves 5, after being flowed out, Ye Liunengcong UNICOM groove 5 also has circulation area, internal thread is arranged at the top of switch 6, described internal thread is connected with the external screw thread of right supporting positive cover 4 with left supporting positive cover 1, left supporting positive cover 1 is to be two bodies of cutting open after machining screw on cylinder by outside with right supporting positive cover 4, there is righting boss left supporting positive cover 1 and right supporting positive cover 4 inside, described righting boss coordinates with sucker rod 7, space between righting boss can be fluid course.
Instrument 8 is generally oil pump piston or on-off connector upper body.
Claims (1)
1. a sliding sleeve switch, comprise box cupling (2), joint (3), switch (6) sucker rod (7), instrument (8), sucker rod (7) is one with joint (3), sucker rod (7) bottom is connected with instrument (8), the external diameter that the internal diameter of switch (6) is greater than joint (3) is less than the external diameter of box cupling (2), switch (6) is sleeved on sucker rod (7), joint (3) is connected with box cupling (2), the lower end diameter of switch (6) is greater than upper end diameter, switch (6) Shang You UNICOM groove (5), it is characterized in that: internal thread is arranged at the top of switch (6), described internal thread is connected with the external screw thread of right supporting positive cover (4) with left supporting positive cover (1), left supporting positive cover (1) is two bodies of cutting open after machining screw on cylinder by outside with right supporting positive cover (4), there is righting boss left supporting positive cover (1) and right supporting positive cover (4) inside, described righting boss coordinates with sucker rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633263.7U CN203476285U (en) | 2013-10-08 | 2013-10-08 | Sliding sleeve switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633263.7U CN203476285U (en) | 2013-10-08 | 2013-10-08 | Sliding sleeve switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476285U true CN203476285U (en) | 2014-03-12 |
Family
ID=50224632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320633263.7U Expired - Fee Related CN203476285U (en) | 2013-10-08 | 2013-10-08 | Sliding sleeve switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832132A (en) * | 2015-04-30 | 2015-08-12 | 中国石油天然气股份有限公司 | Pumping-assisting device of sucker rod and sand-blocking oil-discharging sliding sleeve thereof |
-
2013
- 2013-10-08 CN CN201320633263.7U patent/CN203476285U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832132A (en) * | 2015-04-30 | 2015-08-12 | 中国石油天然气股份有限公司 | Pumping-assisting device of sucker rod and sand-blocking oil-discharging sliding sleeve thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20141008 |
|
| EXPY | Termination of patent right or utility model |