CN206016708U - A kind of washing well hollow rod joint - Google Patents
A kind of washing well hollow rod joint Download PDFInfo
- Publication number
- CN206016708U CN206016708U CN201621039878.7U CN201621039878U CN206016708U CN 206016708 U CN206016708 U CN 206016708U CN 201621039878 U CN201621039878 U CN 201621039878U CN 206016708 U CN206016708 U CN 206016708U
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- CN
- China
- Prior art keywords
- axially extending
- push rod
- extending bore
- ball sealer
- bar shaped
- 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.)
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a kind of washing well hollow rod joint, there is joint body, the two ends of joint body have outer connection screw thread, there is in joint body axially extending bore, multiple bar shaped outlets are offered on tube wall in the middle part of joint body, equipped with ring sealing base on the axially extending bore inwall of bar shaped outlet side, in the axially extending bore on the outside of ring sealing base, clamping screw is rotary with；Axially extending bore between multiple bar shaped outlets is built with ball sealer, ball sealer push rod is provided with the axially extending bore of bar shaped outlet opposite side, spring retainer nut is rotary with axially extending bore on the outside of ball sealer push rod, bar footpath of the internal diameter of spring retainer nut more than the ball sealer push rod for closing on, annular stop boss is provided with positioned at ball sealer push rod approximately mid way between, in the ball sealer push rod section between annular stop boss and spring retainer nut, back-moving spring is arranged with.During well-flushing, water under high pressure is acted on ball sealer so as to overcome spring force to separate with seal receptacle, realizes the purpose of well-flushing.
Description
Technical field
This utility model is related to a kind of hollow rod joint, more particularly, to a kind of washing well hollow rod joint.
Background technology
Hollow rod is a kind of special sucker rod, not only as solid sucker rod passes to the power of oil pumper
Oil well pump pumping well liquid, and middle through hole can be passed through inject different media, to help viscosity reduction, pour point depression, therefore extensively
It is applied to Gao Ning, the oil producing operation of high viscous and high-content wax oil well；Simultaneously as intermediate throughholes can following heating cable, also extensively
It is applied to electrical heating oil well.For high-content wax oil well, need, using hot water well-flushing, for conventional pumpingh well, to need during well-flushing
Go out roofbolt and oil well pump.For the oil well using hollow rod, can inject hot water by its endoporus carries out well-flushing, flushing fluid
Discharge from annular space of the hollow rod with oil pipe, at this moment need a hollow rod joint, the hollow rod joint
Hollow rod endoporus can be connected with rod tube annular space in well-flushing, and in normal pumping operation, the joint is closed
Close.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple structure, can be by hollow rod in well-flushing
Endoporus is connected with rod tube annular space, and the washing well hollow rod joint that closes in normal pumping operation.
For solving above-mentioned technical problem, a kind of washing well hollow rod joint of this utility model, with joint body, connects
The two ends of head body have in outer connection screw thread, joint body and there is axially extending bore, edge on the tube wall in the middle part of the joint body
Circumferencial direction uniformly offers multiple bar shaped outlets, close equipped with annular on the axially extending bore inwall of bar shaped outlet side
Envelope seat, is rotary with the clamping screw coordinated with axially extending bore inner thread in the axially extending bore on the outside of ring sealing base；It is located at multiple
Axially extending bore between the bar shaped outlet can be between bar shaped outlet built be engaged with the ring sealing base
The ball sealer that reciprocatingly slides of axially extending bore, be provided with ball sealer push rod in the axially extending bore of bar shaped outlet opposite side, close
The spring retainer nut coordinated with axially extending bore inner thread, spring retainer nut is rotary with axially extending bore on the outside of blocking push rod
Internal diameter more than the ball sealer push rod near the bar footpath of the push rod stop nut one end, positioned at the ball sealer push rod substantially in
Meta has installed annular stop boss, is arranged with multiple in the ball sealer push rod section between annular stop boss and spring retainer nut
Position spring.
Used as improvement of the present utility model, the spring retainer nut there is push rod to be oriented to towards one end of ball sealer push rod
Ring, the internal diameter of the push rod guide ring are equal with the internal diameter of spring retainer nut.
Using the washing well hollow rod joint of said structure, during normal work, its upper end is interior with hollow rod
Screw thread head connects, and lower end is connected with the external screw thread head of hollow rod by box cupling, during well-flushing, by hollow rod
Water under high pressure is injected in hole, and water under high pressure is acted on the ball sealer in this utility model, and ball sealer overcomes spring force to move downward, with ring
Shape seal receptacle is separated to be opened, and bar shaped outlet of the water under high pressure on joint body flows into hollow rod and the annular of oil pipe is empty
Between, discharge to well head, complete washing well process.After well-flushing terminates, stop injection water under high pressure, hydraulic pressure is put down inside and outside the hollow rod
After weighing apparatus, under the spring-force driven dual of back-moving spring, ball sealer push rod jack-up ball sealer is sealed with ring sealing base.This utility model
Described in spring retainer nut there is push rod guide ring towards one end of ball sealer push rod, it is ensured that ball sealer during clean-out service
Axial linear movement of the push rod along rod connector.
Description of the drawings
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Fig. 1 is a kind of cross section structure diagram of washing well hollow rod joint of this utility model.
Fig. 2 is the cross-sectional schematic of the spring retainer nut in a kind of washing well hollow rod joint of this utility model.
Specific embodiment
Referring to Fig. 1, Fig. 2, washing well hollow rod joint of the present utility model, with joint body 1, joint body 1
Two ends there is outer connection screw thread 2, there is axially extending bore 3 in joint body 1, along circle on the tube wall in the middle part of the joint body 1
Circumferential direction uniformly offers multiple bar shaped outlets 4, equipped with annular on 3 inwall of axially extending bore of 4 side of bar shaped outlet
Seal receptacle 5, is rotary with, in the axially extending bore 3 on the outside of ring sealing base 5, the clamping screw 6 coordinated with axially extending bore inner thread；Position
Axially extending bore 3 between multiple bar shaped outlets 4 can be gone out along bar shaped built be engaged with the ring sealing base 5
The ball sealer 7 that axially extending bore between the mouth of a river reciprocatingly slides, is provided with the axially extending bore 3 of 4 opposite side of bar shaped outlet close
Blocking push rod 8, is rotary with, in the axially extending bore 3 on the outside of ball sealer push rod 8, the spring retainer spiral shell coordinated with axially extending bore inner thread
Female 9, the internal diameter of spring retainer nut 9 is more than the ball sealer push rod 8 near the bar footpath of the spring retainer nut one end, positioned at institute
State 8 approximately mid way between of ball sealer push rod and be provided with annular stop boss 10, between annular stop boss 10 and spring retainer nut 9
Ball sealer push rod section on be arranged with back-moving spring 11.The spring retainer nut 9 has top towards one end of ball sealer push rod 8
Bar guide ring 12, the internal diameter of the push rod guide ring 12 are equal with the internal diameter of spring retainer nut 9.
Claims (2)
1. a kind of washing well hollow rod joint, with joint body（1）, joint body（1）Two ends there is outer connection spiral shell
Stricture of vagina（2）, joint body（1）Interior with axially extending bore（3）, it is characterised in that：The joint body（1）Along circle on the tube wall at middle part
Circumferential direction uniformly offers multiple bar shaped outlets（4）, near bar shaped outlet（4）The axially extending bore of side（3）Fill on inwall
There is ring sealing base（5）, ring sealing base（5）The axially extending bore in outside（3）Inside it is rotary with and the cooperation of axially extending bore inner thread
Clamping screw（6）；It is located at multiple bar shaped outlets（4）Between axially extending bore（3）Built with the ring sealing base
（5）Be engaged can be between bar shaped outlet the ball sealer that reciprocatingly slides of axially extending bore（7）, near bar shaped outlet（4）
The axially extending bore of opposite side（3）Ball sealer push rod is inside provided with（8）, ball sealer push rod（8）The axially extending bore in outside（3）Inside be rotary with
The spring retainer nut that axially extending bore inner thread coordinates（9）, spring retainer nut（9）Internal diameter be more than the ball sealer push rod
（8）Near the bar footpath of the push rod stop nut one end, positioned at the ball sealer push rod（8）Approximately mid way between is provided with annular stop
Boss（10）, annular stop boss（10）With spring retainer nut（9）Between ball sealer push rod section on be arranged with back-moving spring
（11）.
2. washing well hollow rod joint as claimed in claim 1, it is characterised in that：The spring retainer nut（9）Court
To ball sealer push rod（8）One end there is push rod guide ring（12）, the push rod guide ring（12）Internal diameter and spring retainer nut
（9）Internal diameter equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039878.7U CN206016708U (en) | 2016-09-07 | 2016-09-07 | A kind of washing well hollow rod joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039878.7U CN206016708U (en) | 2016-09-07 | 2016-09-07 | A kind of washing well hollow rod joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206016708U true CN206016708U (en) | 2017-03-15 |
Family
ID=58259808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621039878.7U Active CN206016708U (en) | 2016-09-07 | 2016-09-07 | A kind of washing well hollow rod joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206016708U (en) |
-
2016
- 2016-09-07 CN CN201621039878.7U patent/CN206016708U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |