CN203925419U - Multi-function sand prevention draining bottom valve - Google Patents
Multi-function sand prevention draining bottom valve Download PDFInfo
- Publication number
- CN203925419U CN203925419U CN201420340902.5U CN201420340902U CN203925419U CN 203925419 U CN203925419 U CN 203925419U CN 201420340902 U CN201420340902 U CN 201420340902U CN 203925419 U CN203925419 U CN 203925419U
- Authority
- CN
- China
- Prior art keywords
- bottom valve
- bleeder
- box cupling
- hole
- bead
- 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
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Abstract
The utility model provides Multi-function sand prevention draining bottom valve, bleeder, box cupling, bottom valve, consists of, and box cupling is that female hollow cylindrical staving is established at two ends; Described bleeder one end is provided with external screw thread, and inside has through hole, and through hole edge is symmetrically arranged with the circular hole of some perforations, one end that bleeder is connected with box cupling, and the inner circular arc depression that forms, other end inside is provided with annular boss; Described bottom valve is that two ends arrange externally threaded cylindrical hollow staving, one end that described bottom valve is connected with box cupling inwardly forms stepped depression, and this bottom valve has the effect of bleeder and bottom valve simultaneously, and bead lengthwise movement is apart from minimizing, play effective sealing process, prevent pouring in of a large amount of silts; The circular hole that bleeder interior bone edge arranges, can be so that bead be when move upward, and crude oil and water pass through from the circular hole of concave edges, and this device is convenient to dismounting, rational in infrastructure, is applicable to very much oil recovery scene and promotes the use of.
Description
Technical field
The utility model relates to field of petroleum exploitation, is specifically related to a kind of Multi-function sand prevention draining bottom valve in oil recovery process.
Background technology
Oil recovery field, is divided into without pump and recovers the oil and have pump to recover the oil two types, in recovering the oil, oil pipe is set in sleeve pipe without pump, and sucker rod moves back and forth in oil pipe, realizes and recovering the oil.
In oil pipe bottom, be provided with bottom valve, be widely used now a kind of ball valve, basic structure is on cylinder, to have through hole, be arranged on oil pipe bottom, inside is provided with bead, bead can shutoff in through hole, play sealing process, but when ball valve is opened, the distance that bead is altered in oil pipe is unrestricted, causes open and close interval wayward, and liquid measure leakage is larger, also can cause a large amount of silt to enter oil pipe, directly affect oil yield.
Stopping work or during well workover, pump rod need to being taken out, now in oil pipe, be full of band press liquid in addition, pump rod is difficult for taking out, and is with the fuel-displaced easily contaminated environment of coming also.
There is function singleness in visible existing bottom valve, sand controlling result is bad, and liquid measure leakage is large, not easy to operate, is difficult to meet the defects such as many-sided requirement, and for above-mentioned technological deficiency, applicant improves bottom valve.
Summary of the invention
The purpose of this utility model be to provide a kind of reasonable in design, sand controlling result is remarkable, efficient Multi-function sand prevention draining bottom valve easy to use.
The technical solution of the utility model is: Multi-function sand prevention draining bottom valve, by bleeder, box cupling, bottom valve, formed, and box cupling is that female hollow cylindrical staving is established at two ends, connects bleeder and bottom valve; Described bleeder is improved pin oil drain, and one end is provided with external screw thread, and inside has through hole, through hole edge is symmetrically arranged with the circular hole of some perforations, one end that bleeder is connected with box cupling, the inner circular arc depression that forms, other end inside is provided with annular boss; Described bottom valve is that two ends arrange externally threaded cylindrical hollow staving, one end is connected with bleeder by box cupling, one end that described bottom valve is connected with box cupling inwardly forms stepped depression, a part as bottom valve, bead moves between bleeder and bottom valve, and its diameter is greater than the internal diameter of bleeder and bottom valve, and is less than box cupling internal diameter, upwards can embed in the circular arc depression of bleeder bottom, to falling in the stepped depression of bottom valve inside.
As known technology, described bleeder is improved pin oil drain, is above provided with draining hole, is provided with draining pin in draining hole, and draining pin gos deep into bleeder interior bone.
Advantage and the good effect that the utlity model has are: this Multi-function sand prevention draining bottom valve, there is the effect of bleeder and bottom valve simultaneously, by box cupling, link together, make bead lengthwise movement in bottom valve apart from minimizing, play effective sealing process, prevent pouring in of a large amount of silts, played the effect of sand control; The circular arc depression of bleeder bottom, can embed wherein when bead is moved upward, and now crude oil and water pass through from the circular hole of concave edges, and bead moves downward, and snaps in the stepped depression in bottom valve, can play sealing process completely.This device is convenient to dismounting, rational in infrastructure, is applicable to very much oil recovery scene and promotes the use of.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the upward view of bleeder.
Fig. 3 is the sectional view of bottom valve.
Fig. 4 is the top view of bleeder.
In figure:
1, bleeder 2, box cupling 3, bottom valve
4, through hole 5, circular hole 6, circular-arc depression
7, stepped depression 8, boss
The specific embodiment
The utility model provides a kind of Multi-function sand prevention draining bottom valve, by bleeder 1, box cupling 2, bottom valve 3, formed, this device is arranged on oil pipe bottom, assembling from top to bottom, a part as bottom valve, also have bead to be arranged in box cupling 2, box cupling 2, for establishing female hollow cylindrical staving in two ends, connects bleeder 1 and bottom valve 3; Described bleeder 1 is improved pin oil drain, one end is provided with external screw thread, inside has through hole 4, external screw thread one end is threaded with box cupling 2 in bottom, one end that bleeder 1 is connected with box cupling 2, the inner circular arc depression 6 that forms, can observe in conjunction with the top view of Fig. 2, at circular arc 6 edges that cave in, be provided with circular hole 5 and communicate with through hole 4, other end inside is provided with annular boss 8, can observe in conjunction with Fig. 4; In the process that bead presses down at pump rod, can embed in circular arc depression 6, liquid can enter through hole from circular hole 5; Described bottom valve 3 is externally threaded cylindrical hollow staving for two ends arrange, and one end is connected with bleeder 1 by box cupling 2, and one end that described bottom valve 3 is connected with box cupling 2 inwardly forms stepped depression 7, visible in Fig. 3, bead when declining, can with stepped depression 7 combinations, play the effect of sealing; Bead is located in box cupling 2, motion between bleeder 1 and bottom valve 3, and its diameter is greater than the internal diameter of bleeder 1 and bottom valve 3, and is less than box cupling 2 internal diameters.
The technical program is mainly to make for the problem of existing bottom valve 3, bead in existing bottom valve 3 directly moves in oil pipe, and lower limit is bottom valve 3, up without any restriction, make the sealing process of bottom valve 3 limited, be mingled with a large amount of silt, applicant expects using conventional pin oil drain to improve, but existing pin oil drain not be used in without in pump oil recovery, and general independent use, after use finishes, directly use instrument to pound disconnected pin downwards, open draining hole.Existing pin oil drain inside is just provided with through hole 4 and circular hole 5, and when recovering the oil without pump, pump rod can directly move downward and pound disconnected pin, causes this pin oil drain normally to use.
The innovative point of this patent is: the modular design of the setting of boss 8 and bottom valve 3, box cupling 2, bleeder 1.
The course of work of the present embodiment is: this device is arranged on oil pipe bottom, be together by a threaded connection, play the effect of draining and bottom valve 3, the small ball's diameter is greater than the diameter of bottom valve 3 and bleeder 1, and is less than box cupling 2 diameters, when pump rod presses down, bead is attached in circular arc depression 6, and now crude oil and other liquid can normally flow through by circular hole 5, while carrying on pump rod, bead snaps in stepped depression 7, plays sealing process.
Visible, it is inner that the move distance of bead has been limited in this device, makes its sealing effect accurately and in time, reduced liquid measure leakage, also played sand control effect.
When stopping operation, in conjunction with Fig. 4, boss 8 is for being arranged on bleeder 1 inside, the structure rounding, is decreased to the diameter at boss 8 places and is less than pump rod lower end diameter, and be greater than the scope of pump rod upper end diameter, so when in use, pump rod can not enter bleeder 1 inside, smashes pin, after use finishes, cross pump rod, with one end of minor diameter, through boss 8, pound disconnected pin, play draining effect.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (2)
1. Multi-function sand prevention draining bottom valve, is characterized in that: by bleeder, box cupling, bottom valve, formed,
Box cupling is that female hollow cylindrical staving is established at two ends, connects bleeder and bottom valve;
Described bleeder is improved pin oil drain, and one end is provided with external screw thread, and inside has through hole, through hole edge is symmetrically arranged with the circular hole of some perforations, one end that bleeder is connected with box cupling, the inner circular arc depression that forms, other end inside is provided with annular boss;
Described bottom valve is that two ends arrange externally threaded cylindrical hollow staving, also comprises bead, and described bottom valve one end is connected with bleeder by box cupling, and one end that described bottom valve is connected with box cupling inwardly forms stepped depression.
2. Multi-function sand prevention draining bottom valve according to claim 1, is characterized in that: described bead moves between bleeder and bottom valve, and its diameter is greater than the internal diameter of bleeder and bottom valve, and is less than box cupling internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340902.5U CN203925419U (en) | 2014-06-24 | 2014-06-24 | Multi-function sand prevention draining bottom valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340902.5U CN203925419U (en) | 2014-06-24 | 2014-06-24 | Multi-function sand prevention draining bottom valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925419U true CN203925419U (en) | 2014-11-05 |
Family
ID=51821248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340902.5U Expired - Fee Related CN203925419U (en) | 2014-06-24 | 2014-06-24 | Multi-function sand prevention draining bottom valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925419U (en) |
-
2014
- 2014-06-24 CN CN201420340902.5U patent/CN203925419U/en not_active Expired - Fee Related
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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: 20141105 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |