CN202645507U - Intelligent pumping unit downhole pressure switch - Google Patents
Intelligent pumping unit downhole pressure switch Download PDFInfo
- Publication number
- CN202645507U CN202645507U CN 201220349046 CN201220349046U CN202645507U CN 202645507 U CN202645507 U CN 202645507U CN 201220349046 CN201220349046 CN 201220349046 CN 201220349046 U CN201220349046 U CN 201220349046U CN 202645507 U CN202645507 U CN 202645507U
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- CN
- China
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- main body
- pressure switch
- seal section
- pumping unit
- downhole pressure
- 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 - Lifetime
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Abstract
The utility model relates to an intelligent pumping unit downhole pressure switch which is used in a process of oilfield development when oil is extracted. The intelligent pumping unit downhole pressure switch comprises an upper main body, a sealing section and a lower main body, wherein the upper main body, the sealing section and the lower main body are in a barrel shape are connected in sequence. A plurality of liquid inlet holes are evenly distributed in a radial direction on a barrel wall of the sealing section, a piston is arranged in a cavity of the sealing section in a sleeved mode and fixed by a pin. The intelligent pumping unit downhole pressure switch fully prevents the liquid inlet holes from being opened in advance, complex equipment such as tank trucks and pump trucks is not used for pressurizing, and workload and production cost are reduced.
Description
Technical field
The utility model relates to a kind of intelligent oil pumping machine down-hole pressure switch used when recovering the oil in the oilfield development process.
Background technology
Intelligent oil pumping machine is with the obvious advantage, simple to operate aspect energy-conservation, has very strong promotional value, is the new direction of following lifting technology development.But in operation process, lowering-in operation and swab are installed asynchronous, add crude oil and easily condense, cause swab can't lower going-into-well at the bottom of, need repeatedly clean-out service, as it is serious to condense, well-flushing is washed obstructed, then need re-start job execution, the waste great amount of cost.In order to reduce unnecessary waste and to improve efficiency of construction, attempt in Intelligent oil bailing pumping unit lowering-in operation process, use intelligent oil pumping machine down-hole pressure switch.And existing down-hole pressure switching device need to be under the cooperation of pump truck and tank car, by suppressing release plunger, running cost is higher, and former down-hole pressure switch does not have the crude oil admission passage, rely on the screen casing of bottom as feed pathway, easily cause piston to open, or automatically open in advance, crude oil is entered in advance cause swab can't be lowered to designated depth after pit shaft condenses.
The utility model content
Easily cause piston to open in order to solve existing construction of switch, or automatically open in advance, crude oil is entered in advance cause swab can't be lowered to the problem of designated depth after pit shaft condenses, the utility model provides a kind of intelligent oil pumping machine down-hole pressure switch.This switch improves on the basis of existing structure, has avoided inlet opening to open in advance fully, and has suppressed without complex device such as tank car and pump trucks, reduces workload and cost of production.
The technical solution of the utility model is: a kind of intelligent oil pumping machine down-hole pressure switch, the upper main body, seal section and the lower main body that comprise the tubular that connects successively, wherein, the some inlet openings of radial equipartition on the described seal section barrel, the cavity inner sleeve of described seal section fills piston, and is fixed by pin.
In order to guarantee sealing effectiveness, large cushion rubber all is equipped with in the junction of described upper main body, seal section and lower main body; Between described seal section and the piston small sealing ring is housed.
The beneficial effects of the utility model are: owing to adopting technique scheme, the some inlet openings of radial equipartition on the seal section enter the passage of oil pipe as crude oil, cancelled screen casing.Throw downward impact piston with iron staff, open inlet opening when opening passage, avoid opening in advance, greatly saved well-flushing, operating cost, avoid suppressing with complex device such as tank car and pump trucks, reduce workload.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The upper main body of 1-among the figure, the large cushion rubber of 2-, 3-piston, 4-seal section, 5-pin, the little cushion rubber of 6-, main body under the 7-, 8-inlet opening.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this intelligent oil pumping machine down-hole pressure switch, the upper main body 1, seal section 4 and the lower main body 7 that comprise tubular, upper main body 1 is threaded with seal section 4, seal section 4 is threaded with lower main body 7, wherein, and the some inlet openings 8 of radial equipartition on described seal section 4 barrels, the cavity inner sleeve dress piston 3 of seal section 4, and fixing by pin 5.
In order to guarantee sealing effectiveness, the connection of thread of described upper main body 1, seal section 4 and lower main body 7 all is equipped with large cushion rubber 2; Describedly between seal section 4 and piston 3, small sealing ring 6 is housed.
When lower tubular column, this pressure switch is connected on the tubing string bottom goes into the well, because feed pathway is by piston 3 shutoff, well liquid just advances less than in the oil pipe, guarantees that in the oil pipe be dried dummy status.In the time will descending swab to produce, iron staff is dropped in the switch, pound disconnected pin 5, piston 3 leaves seal section 4, well liquid enters in the oil pipe from inlet opening 8 radially, can pump behind the lower swab, avoids crude oil to enter in advance and causes swab can't be lowered to designated depth after pit shaft condenses.
In such scheme, at first, uniform inlet opening 8 on the seal section 4 enters the passage of oil pipe as crude oil, cancelled screen casing, opens inlet opening 8 when piston 3 is opened; In addition, the up and down pressure-bearing surface of piston 3 equates, does not bear the pressure reduction of above-below direction, avoids causing extra vertical pressure reduction, and only bears lateral pressure, when avoiding pin 5 pressure reduction impacting in bearing well, is opened inlet opening 8 by the section of cutting in advance; The 2nd, pin 5 fixed pistons 3, pin 5 diameters are little, in iron staff drops into switch, only need very little shearing force can open feed pathway; The 3rd, seal section 4 with up and down between main body (1,7), seal section 4 and 3 in piston be equipped with sealing ring, avoid revealing between parts; The 4th, open passage with the iron staff throwing, avoid suppressing with complex device such as tank car and pump trucks, reduce workload.
Claims (3)
1. intelligent oil pumping machine down-hole pressure switch, the upper main body (1), seal section (4) and the lower main body (7) that comprise the tubular that connects successively, it is characterized in that: the some inlet openings of radial equipartition (8) on the barrel of described seal section (4), the cavity inner sleeve dress piston (3) of seal section (4), and fixing by pin (5).
2. intelligent oil pumping machine down-hole pressure switch according to claim 1, it is characterized in that: large cushion rubber (2) all is equipped with in the junction of described upper main body (1), seal section (4) and lower main body (7).
3. intelligent oil pumping machine down-hole pressure switch according to claim 2 is characterized in that: between described seal section (4) and the piston (3) small sealing ring (6) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349046 CN202645507U (en) | 2012-07-18 | 2012-07-18 | Intelligent pumping unit downhole pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349046 CN202645507U (en) | 2012-07-18 | 2012-07-18 | Intelligent pumping unit downhole pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645507U true CN202645507U (en) | 2013-01-02 |
Family
ID=47414629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220349046 Expired - Lifetime CN202645507U (en) | 2012-07-18 | 2012-07-18 | Intelligent pumping unit downhole pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265216A (en) * | 2014-08-15 | 2015-01-07 | 中国石油天然气股份有限公司 | Dropping-and-fishing-free well-flushing pressure switch |
| CN106481301A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of limit-type Underwell anti-injection sand washing blanking plug of monomer |
-
2012
- 2012-07-18 CN CN 201220349046 patent/CN202645507U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265216A (en) * | 2014-08-15 | 2015-01-07 | 中国石油天然气股份有限公司 | Dropping-and-fishing-free well-flushing pressure switch |
| CN106481301A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of limit-type Underwell anti-injection sand washing blanking plug of monomer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |