CN203394484U - Steam injection sliding sleeve of self-contained ball - Google Patents
Steam injection sliding sleeve of self-contained ball Download PDFInfo
- Publication number
- CN203394484U CN203394484U CN201320357216.4U CN201320357216U CN203394484U CN 203394484 U CN203394484 U CN 203394484U CN 201320357216 U CN201320357216 U CN 201320357216U CN 203394484 U CN203394484 U CN 203394484U
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- CN
- China
- Prior art keywords
- sliding sleeve
- steam injection
- sleeve
- low
- ball
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- Expired - Fee Related
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Abstract
The utility model discloses a steam injection sliding sleeve of a self-contained ball, and is designed to solve the problems of complicated operation and low heat utilization efficiency of the prior art. The steam injection sliding sleeve is characterized in that an upper sliding sleeve is connected to a lower sliding sleeve, and the bottom end of the lower sliding sleeve is connected to an extension tube; a steel ball is arranged in an expanding tube of the lower sliding sleeve, a socket sliding sleeve is fixed in a reducing tube of the lower sliding sleeve through a shear pin; a heat-resistant sealing ring is arranged in a packing groove outside the socket sliding sleeve, a side hole is formed in the outer wall of the sliding sleeve, a pressure bearing convex claw used for downwards transferring pressure is arranged at the bottom of the inner wall of the sliding sleeve, and a front tooth used for controlling the steel ball is arranged at the top of the sliding sleeve. According to the steam injection sliding sleeve, tripping in a thermal recovery pump before steam injection, instant layer exchange work without moving a well mouth during steam injection and direct heat recovery work after steam injection can be realized, a dispensing and commingling process is simplified, and the steam injection sliding sleeve has the advantages of compact structure, convenience for operation, and capability of improving opening force control degree of safety and heat utilization efficiency of the steam.
Description
Technical field
The utility model relates to a kind of ball steam injection sliding sleeve of providing for oneself, belongs to down-hole separate injection tubing string technical field.
Background technology
At present, ground is thrown core and is changed layer instrument just like products such as heavy oil wells steam injection sliding sleeves, this type of instrument is when changing layer operation, need to adopt the dispensing fuse of high temperature side test run pulling different structure, after steam injection, need to pull out dispensing fuse, after blowing finishes, need just can carry out lower pump operation after the decline of wait wellhead temperature and kill-job.This type of tool operation relative complex, the heat utilization efficiency of steam is lower.
Summary of the invention
The purpose of this utility model is to provide a kind of ball steam injection sliding sleeve of providing for oneself, and it can solve prior art complicated operation and the low problem of heat utilization efficiency.
Concrete technical scheme of the present utility model is as follows:
The upper sliding sleeve of this steam injection sliding sleeve connects low sleeve, and low sleeve bottom connects extension tube; Steel ball is located in the expanding barrel of low sleeve, accepts sliding sleeve and by shear pin, is fixed in the undergauge cylinder of low sleeve; Accept in the outer packing groove of sliding sleeve and be provided with heat resistant joint ring, sliding sleeve outer wall is provided with side opening, and sliding sleeve inwall bottom is provided with the pressure-bearing dog for lower pressure transmission power, and sliding sleeve top is provided with the nipper of controlling steel ball.
This steam injection sliding sleeve can be realized before steam injection and be lowered in thermal recovery pump, steam injection and change at once without moving well head the thermal recovery operation of directly carrying out after layer operation and steam injection, can simplify separated injection and combined recovery technique, cramped construction, handled easily, improves the heat utilization efficiency that opening force is controlled degree of safety and steam.
Accompanying drawing explanation
Fig. 1 is for providing ball steam injection shift sleeve structure schematic diagram for oneself.
The specific embodiment
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
Embodiment:
Originally providing ball steam injection sliding sleeve for oneself comprises upper sliding sleeve 1, steel ball 2, low sleeve 3, nipper 4, heat resistant joint ring 5, accepts sliding sleeve 6, shear pin 7, side opening 8, pressure-bearing dog 9 and extension tube 10:
Upper sliding sleeve 1 low sleeve 3 that is threaded, the low sleeve 3 bottoms extension tube 10 that is threaded; Steel ball 2 is located in the expanding barrel of low sleeve 3, accepts sliding sleeve 6 and by shear pin 7, is fixed in the undergauge cylinder of low sleeve 3; Accept in the outer packing groove of sliding sleeve 6 and be provided with heat resistant joint ring 5, sliding sleeve outer wall is provided with side opening 8, sliding sleeve inwall bottom be provided with three uniform, for accepting feedback pump lower plunger and transmitting the pressure-bearing dog 9 of descending pressure, sliding sleeve top is provided with the nipper 4 of two control steel balls 2.
While assembling this steam injection sliding sleeve, first steel ball 2 is packed in the low sleeve 3 that lies against ground, then connect upper sliding sleeve 1 and low sleeve 3; Outside accepting sliding sleeve 6, smear a small amount of lubrication oil and pack into after heat resistant joint ring 5, it is packed into from low sleeve 3 bottoms, make steel ball 2 be stuck in upper sliding sleeve 1 bottom surface and accept between two nippers 4 of sliding sleeve 6; Pack shear pin 7 into, fixedly accept sliding sleeve 6; Extension tube 10 is threadedly connected to low sleeve 3 lower ends.
During work, first pass through this steam injection sliding sleeve to lower layer position steam injection, now, two nippers 4 accepting sliding sleeve 6 are controlled at steel ball 2 in low sleeve 3 hole enlargement holes, do not affect center latus rectum.When the complete need of steam injection change layer, by feedback pump, promote to accept sliding sleeve 6 and open.After carrying on feedback pump, steel ball 2 can freely be fallen and accept sliding sleeve 6 upper port places, is closed, and forms ball-and-seat structure, exposes side opening 8 simultaneously, forms top steam injection passage.
Claims (2)
1. provide a ball steam injection sliding sleeve for oneself, it is characterized in that:
The upper sliding sleeve of this steam injection sliding sleeve (1) connects low sleeve (3), and low sleeve (3) bottom connects extension tube (10); Steel ball (2) is located in the expanding barrel of low sleeve (3), accepts sliding sleeve (6) and by shear pin (7), is fixed in the undergauge cylinder of low sleeve (3); Accept in the outer packing groove of sliding sleeve (6) and be provided with heat resistant joint ring (5), sliding sleeve outer wall is provided with side opening (8), sliding sleeve inwall bottom is provided with the pressure-bearing dog (9) for lower pressure transmission power, and sliding sleeve top is provided with the nipper (4) of controlling steel ball (2).
2. the ball steam injection sliding sleeve of providing for oneself as claimed in claim 1, is characterized in that upper sliding sleeve (1) low sleeve (3) that is threaded, low sleeve (3) the bottom extension tube (10) that is threaded; Accept sliding sleeve (6) inwall bottom and be provided with three uniform pressure-bearing dogs (9), sleeve top is provided with two nippers (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320357216.4U CN203394484U (en) | 2013-06-21 | 2013-06-21 | Steam injection sliding sleeve of self-contained ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320357216.4U CN203394484U (en) | 2013-06-21 | 2013-06-21 | Steam injection sliding sleeve of self-contained ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394484U true CN203394484U (en) | 2014-01-15 |
Family
ID=49906020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320357216.4U Expired - Fee Related CN203394484U (en) | 2013-06-21 | 2013-06-21 | Steam injection sliding sleeve of self-contained ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223914A (en) * | 2016-08-24 | 2016-12-14 | 中国石油天然气股份有限公司 | Steam soak snubbing serving gas filling device |
-
2013
- 2013-06-21 CN CN201320357216.4U patent/CN203394484U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223914A (en) * | 2016-08-24 | 2016-12-14 | 中国石油天然气股份有限公司 | Steam soak snubbing serving gas filling device |
| CN106223914B (en) * | 2016-08-24 | 2019-01-18 | 中国石油天然气股份有限公司 | Steam soak snubbing serving gas filling device |
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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: 20140115 Termination date: 20210621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |