CN203516026U - Gap bridge type inversed pull-down pump - Google Patents
Gap bridge type inversed pull-down pump Download PDFInfo
- Publication number
- CN203516026U CN203516026U CN201320568174.9U CN201320568174U CN203516026U CN 203516026 U CN203516026 U CN 203516026U CN 201320568174 U CN201320568174 U CN 201320568174U CN 203516026 U CN203516026 U CN 203516026U
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- bridge type
- pump
- pull
- oil
- gap bridge
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Abstract
The utility model discloses a gap bridge type inversed pull-down pump. The gap bridge type inversed pull-down pump aims to be matched with an underground linear motor rodless oil exploiting device to eliminate eccentric abrasion and improve system efficiency. The gap bridge type inversed pull-down pump mainly comprises an oil outlet valve, a screening pipe, an upper outer pipe, a reducer union, a lower outer pipe and the like, the lower end of a bridge type inner pipe is connected with an upper pump cylinder, the bridge type inner pipe is fixed in a bridge type outer pipe, an upper plunger is arranged in the upper pump cylinder, an upper moving oil inlet valve and a lower moving oil inlet valve are connected in the upper plunger, and the bottom end of the lower moving oil inlet valve is connected with a lower plunger through threads. The gap bridge type inversed pull-down pump and an underground linear motor are combined for construction, sucker-rod-free oil exploiting can be achieved, the problem that eccentric abrasion of a sucker rod pipe cannot be eliminated in a directional well is solved foundationally, zero transmission from the motor to an oil well pump is achieved, travel loss can be eliminated, pump efficiency and system efficiency are improved, and work safety danger is reduced. The gap bridge type inversed pull-down pump is profitable exploration for changing an existing mechanical oil exploiting mode, and the gap bridge type inversed pull-down pump has important significance on reducing oil exploiting cost and improving benefits.
Description
Technical field
The utility model relates to a kind of bridge type and is inverted drop-down pump, belongs to industrial gas oil underground operation tool technical field.
Background technique
At present, there is the intrinsic difficult problems such as the many and system effectiveness room for promotion of rod and tube partial-wear, transmission link is little in the oil production method of pumping unit rod pump.
Summary of the invention
The purpose of this utility model is to provide a kind of bridge type to be inverted drop-down pump, to eliminate rod and tube partial-wear, improves system effectiveness.
Concrete technology contents of the present utility model is as follows:
The upper box cupling lower end internal thread of this drop-down pump connects oil-release valve cover, is provided with outlet valve and delivery valve seat in oil-release valve cover, and lower end internal thread connecting valve seat joint, outside thread connection coupling; Box cupling lower end connects upper exterior tube by screen casing, and upper exterior tube lower end internal thread connects reducer union, and reducer union lower end connects lower outer pipe by adapter; Bridge-type outer tube upper external screw thread connection coupling, lower end outside thread connects upper exterior tube; Bridge-type inner tube is fixed in bridge-type outer tube, and its lower end outside thread connects upper pump barrel; In upper pump barrel, be provided with upper plug, upper plug inwall upper and lower part step connect respectively move about oiling valve and under the oiling valve that moves about, under the oiling valve bottom lower plunger that is threaded that moves about; Lower pump barrel upper external screw thread on suit lower plunger connects reducer union.
This drop-down pump is combined construction with down-hole linear motor, can realize without sucker rod oil production, fundamentally solves the problem of the deviating wearing between sucker rod and tube that directional well cannot eliminate, realize motor to " zero transmission " of oil well pump, can eliminate loss of plunger stroke, improve pump efficiency and system effectiveness, reduce job safety risk.This drop-down pump is to change benefiting our pursuits of existing machinery oil production method, to reducing cost for oil production and increasing the benefit, has great importance.
Accompanying drawing explanation
Fig. 1 is that bridge type is inverted drop-down pump superstructure schematic diagram.
Fig. 2 is that bridge type is inverted drop-down pump substructure schematic diagram.
Fig. 3 is A-A sectional view in Fig. 1.
Embodiment
Embodiment:
Referring to figs. 1 through 3 couples of basis embodiments of the present utility model, further illustrate:
This drop-down pump mainly comprise box cupling 1, oil-release valve cover 2, outlet valve 3, delivery valve seat 4, valve base joint 5, box cupling 6, bridge-type outer tube 7, screen casing 8, bridge-type inner tube 9, upper exterior tube 10, upper pump barrel 11, on move about oiling valve 12, upper plug 13, under move about oiling valve 14, lower plunger 15, reducer union 16, lower pump barrel 17 and lower outer pipe 18;
Upper box cupling 1 lower end internal thread connects oil-release valve cover 2, is provided with outlet valve 3 and delivery valve seat 4 in oil-release valve cover 2, and lower end internal thread connecting valve seat joint 5, outside thread connection coupling 6.Box cupling 6 lower ends connect upper exterior tube 10 by screen casing 8, and upper exterior tube 10 lower end internal threads connect reducer union 16, and reducer union 16 lower ends connect lower outer pipe 19 by taking over 18.Bridge-type outer tube 7 upper external screw thread connection couplings 6, lower end outside thread connects upper exterior tube 10.Bridge-type inner tube 9 is fixed in bridge-type outer tube 7, and its lower end outside thread connects upper pump barrel 11.In upper pump barrel 11, be provided with upper plug 13, upper plug 13 inwall upper and lower part steps connect respectively move about oiling valve 12 and under the oiling valve 14 that moves about, under the oiling valve 14 bottoms lower plunger 15 that is threaded that moves about.Lower pump barrel 17 upper external screw threads on suit lower plunger 15 connect reducer union 16.
The lower outer pipe 19 connecting downhole linear electric motor of this drop-down pump, lower plunger 15 connects motor pull bar by adding the crossover sub of pin.Box cupling 1 connected pipes on drop-down pump, oil pipe upper end connects production wellhead.During real work, by operating vehicle, oil pipe, this drop-down pump and down-hole linear motor are lowered into predetermined depth in well, by down-hole linear motor, drive this drop-down pump to carry out work.
During this drop-down pump up stroke, above move about oiling valve 12 and under the oiling valve 14 that moves about open, outlet valve 3 cuts out, well liquid enters bridge-type outer tube 7 by screen casing 8, through on move about oiling valve 12 and under the oiling valve 14 that moves about flow into lower pump barrel 17, complete feed liquor.During down stroke, above move about oiling valve 12 and under the oiling valve 14 that moves about close, outlet valve 3 is opened, well liquid enters bridge-type inner tube 9 by lower pump barrel 17, through outlet valve 3, completes fluid.
Claims (1)
1. bridge type is inverted a drop-down pump, it is characterized in that:
Upper box cupling (1) the lower end internal thread of this drop-down pump connects oil-release valve cover (2), in oil-release valve cover (2), be provided with outlet valve (3) and delivery valve seat (4), and lower end internal thread connecting valve seat joint (5), outside thread connection coupling (6); Box cupling (6) lower end connects upper exterior tube (10) by screen casing (8), and upper exterior tube (10) lower end internal thread connects reducer union (16), and reducer union (16) lower end connects lower outer pipe (19) by taking over (18); Bridge-type outer tube (7) upper external screw thread connection coupling (6), lower end outside thread connects upper exterior tube (10); Bridge-type inner tube (9) is fixed in bridge-type outer tube (7), and its lower end outside thread connects upper pump barrel (11); In upper pump barrel (11), be provided with upper plug (13), upper plug (13) inwall upper and lower part step connect respectively the oiling valve that moves about (12) and under the oiling valve (14) that moves about, under oiling valve (14) the bottom lower plunger (15) that is threaded that moves about; Lower pump barrel (17) upper external screw thread on suit lower plunger (15) connects reducer union (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568174.9U CN203516026U (en) | 2013-09-13 | 2013-09-13 | Gap bridge type inversed pull-down pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568174.9U CN203516026U (en) | 2013-09-13 | 2013-09-13 | Gap bridge type inversed pull-down pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516026U true CN203516026U (en) | 2014-04-02 |
Family
ID=50374964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320568174.9U Withdrawn - After Issue CN203516026U (en) | 2013-09-13 | 2013-09-13 | Gap bridge type inversed pull-down pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454476A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气股份有限公司 | Bridge crossing type inverted pull-drown pump |
| CN106640611A (en) * | 2016-10-28 | 2017-05-10 | 濮阳市科锐机械工程技术有限公司 | Inverted pull-down oil well pump |
-
2013
- 2013-09-13 CN CN201320568174.9U patent/CN203516026U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454476A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气股份有限公司 | Bridge crossing type inverted pull-drown pump |
| CN104454476B (en) * | 2013-09-13 | 2016-05-11 | 中国石油天然气股份有限公司 | Bridge type is inverted drop-down pump |
| CN106640611A (en) * | 2016-10-28 | 2017-05-10 | 濮阳市科锐机械工程技术有限公司 | Inverted pull-down oil well pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |