CN104454476B - Bridge-crossing type inverted pull-down pump - Google Patents
Bridge-crossing type inverted pull-down pump Download PDFInfo
- Publication number
- CN104454476B CN104454476B CN201310416340.8A CN201310416340A CN104454476B CN 104454476 B CN104454476 B CN 104454476B CN 201310416340 A CN201310416340 A CN 201310416340A CN 104454476 B CN104454476 B CN 104454476B
- Authority
- CN
- China
- Prior art keywords
- pump
- bridge
- inlet valve
- oil
- tube
- 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.)
- Active
Links
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000003129 oil well Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a gap bridge type inverted pull-down pump, which is designed for eliminating eccentric wear and improving system efficiency by matching with a rodless oil extraction device of an underground linear motor. The pull-down pump mainly comprises an oil outlet valve, a sieve tube, an upper outer tube, a reducer union, a lower outer tube and the like, wherein a bridge type inner tube with the lower end connected with an upper pump barrel is fixed in the bridge type outer tube, an upper plunger is arranged in the upper pump barrel, an upper flow oil inlet valve and a lower flow oil inlet valve are connected in the upper plunger, and the bottom end of the lower flow oil inlet valve is in threaded connection with the lower plunger. The pull-down pump is combined with the underground linear motor for construction, oil extraction without the sucker rod can be realized, the problem that the sucker rod pipe is eccentrically worn and cannot be eliminated by a directional well is fundamentally solved, zero transmission from the motor to an oil well pump is realized, stroke loss can be eliminated, the pump efficiency and the system efficiency are improved, and the operation safety risk is reduced. The pull-down pump is beneficial exploration for changing the conventional mechanical oil extraction mode, and has important significance for reducing oil extraction cost and improving benefit.
Description
Technical field
The present invention relates to a kind of bridge type and be inverted drop-down pump, belong to industrial gas oil down-holePower tool technical field.
Background technology
At present, the oil production method of oil pumper sucker rod pump exist rod and tube partial-wear, transmission link many andThe intrinsic difficult problems such as system effectiveness room for promotion is little.
Summary of the invention
The object of the present invention is to provide a kind of bridge type to be inverted drop-down pump, inclined to one side to eliminate rod tubeMill, improves system effectiveness.
Concrete technology contents of the present invention is as follows:
The upper box cupling lower end internal thread of this drop-down pump connects oil-release valve cover, in oil-release valve cover, is provided withDelivery valve and delivery valve seat, and lower end internal thread connecting valve seat joint, external screw 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,Reducer union lower end connects lower outer pipe by adapter; Bridge-type outer tube upper external screw thread connection coupling,Lower end external screw thread connects upper exterior tube; Bridge-type inner tube is fixed in bridge-type outer tube, spiral shell outside its lower endLine connects upper pump barrel; In upper pump barrel, be provided with upper plug, upper plug inwall upper and lower part step dividesNot Lian Jie on move about inlet valve and under the inlet valve that moves about, under the inlet valve bottom of moving about be threadedLower plunger; 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, fromThe problem that fundamentally solves the deviating wearing between sucker rod and tube that directional well cannot eliminate, realizes motor to taking out" zero transmission " of oil pump, can eliminate loss of plunger stroke, improves pump efficiency and system effectiveness, reducesJob safety risk. This drop-down pump is to change benefiting our pursuits of existing machinery oil production method, rightReduce cost for oil production and increase the benefit and have great importance.
Brief description of the drawings
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 cutaway view in Fig. 1.
Detailed description of the invention
Embodiment:
Further illustrate referring to figs. 1 through 3 pairs of these embodiments of the invention:
This drop-down pump mainly comprises box cupling 1, oil-release valve cover 2, delivery valve 3, delivery valve seat4, valve base joint 5, box cupling 6, bridge-type outer tube 7, screen casing 8, bridge-type inner tube 9, upper exterior tube10, upper pump barrel 11, on move about inlet valve 12, upper plug 13, under move about inlet 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 fuel-displaced in oil-release valve cover 2Valve 3 and delivery valve seat 4, and lower end internal thread connecting valve seat joint 5, external screw thread connection coupling6. Box cupling 6 lower ends connect upper exterior tube 10 by screen casing 8, and upper exterior tube 10 lower end internal threads connectConnect reducer union 16, reducer union 16 lower ends connect lower outer pipe 19 by taking over 18. Bridge-typeOuter tube 7 upper external screw thread connection couplings 6, lower end external screw thread connects upper exterior tube 10. In bridge-typePipe 9 is fixed in bridge-type outer tube 7, and its lower end external screw thread connects upper pump barrel 11. Upper pump barrel 11Inside be provided with upper plug 13, upper plug 13 inwall upper and lower part steps connect respectively the oil-feed of moving aboutValve 12 and under the inlet valve 14 that moves about, under the inlet 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 motors of this drop-down pump, lower plunger 15 is by adding pinThe crossover sub of nail connects motor pull bar. Box cupling 1 connected pipes on drop-down pump, oil pipe upper endConnect production wellhead. When real work, by Operation Van by oil pipe, this drop-down pump and down-holeLinear electric motors are lowered into desired depth in well, drive this drop-down pump to carry out by down-hole linear motorWork.
When this drop-down pump up stroke, above move about inlet valve 12 and under the inlet valve 14 that moves about open,Delivery valve 3 cuts out, and well liquid enters bridge-type outer tube 7 by screen casing 8, through on the inlet valve 12 that moves aboutWith under move about inlet valve 14 flow into lower pump barrels 17, complete feed liquor. When down stroke, above move about intoFuel tap 12 and under the inlet valve 14 that moves about close, delivery valve 3 is opened, well liquid is by lower pump barrel 17Enter bridge-type inner tube 9, through delivery valve 3, complete 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), is provided with delivery valve (3) and goes out in oil-release valve cover (2)Fuel tap seat (4), and lower end internal thread connecting valve seat joint (5), external screw thread connection coupling (6); Box cupling (6) lower end is by screen casing (8)Connect upper exterior tube (10), upper exterior tube (10) lower end internal thread connects reducer union (16), and reducer union (16) lower end is by taking over (18)Connect lower outer pipe (19); Bridge-type outer tube (7) upper external screw thread connection coupling (6), lower end external screw thread connects upper exterior tube (10); Bridge-typeInner tube (9) is fixed in bridge-type outer tube (7), and its lower end external screw thread connects upper pump barrel (11); Upper pump barrel is provided with upper plug in (11)(13), upper plug (13) inwall upper and lower part step connect respectively the inlet valve that moves about (12) and under the inlet valve (14) that moves about, downstreamMoving inlet valve (14) the bottom lower plunger (15) that is threaded; Lower pump barrel (17) upper external screw thread on suit lower plunger (15) connects changeDrive connector (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416340.8A CN104454476B (en) | 2013-09-13 | 2013-09-13 | Bridge-crossing type inverted pull-down pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416340.8A CN104454476B (en) | 2013-09-13 | 2013-09-13 | Bridge-crossing type inverted pull-down pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454476A CN104454476A (en) | 2015-03-25 |
| CN104454476B true CN104454476B (en) | 2016-05-11 |
Family
ID=52901071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310416340.8A Active CN104454476B (en) | 2013-09-13 | 2013-09-13 | Bridge-crossing type inverted pull-down pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454476B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547906Y (en) * | 2002-05-22 | 2003-04-30 | 大庆油田有限责任公司 | Movable-barrel sand-preventing oil-well pump |
| CN2773345Y (en) * | 2005-04-13 | 2006-04-19 | 大庆油田有限责任公司 | Plunger-type oil-well pump with direct underground dynamic drive |
| CN2823598Y (en) * | 2005-07-18 | 2006-10-04 | 中国石化胜利油田有限公司采油工艺研究院 | Balance type linear motor oil pumping device for downhole |
| CN203516026U (en) * | 2013-09-13 | 2014-04-02 | 中国石油天然气股份有限公司 | Bridge-crossing type inverted pull-down pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6817409B2 (en) * | 2001-06-13 | 2004-11-16 | Weatherford/Lamb, Inc. | Double-acting reciprocating downhole pump |
-
2013
- 2013-09-13 CN CN201310416340.8A patent/CN104454476B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547906Y (en) * | 2002-05-22 | 2003-04-30 | 大庆油田有限责任公司 | Movable-barrel sand-preventing oil-well pump |
| CN2773345Y (en) * | 2005-04-13 | 2006-04-19 | 大庆油田有限责任公司 | Plunger-type oil-well pump with direct underground dynamic drive |
| CN2823598Y (en) * | 2005-07-18 | 2006-10-04 | 中国石化胜利油田有限公司采油工艺研究院 | Balance type linear motor oil pumping device for downhole |
| CN203516026U (en) * | 2013-09-13 | 2014-04-02 | 中国石油天然气股份有限公司 | Bridge-crossing type inverted pull-down pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104454476A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102392629A (en) | Pressurizing device for ground drive downhole oil-water separation injection-production system in same well | |
| US20170191477A1 (en) | A downhole sucker rod pumping unit | |
| CN206129183U (en) | Spin formula sucker rod centralizer structure | |
| CN103498785B (en) | Fire-driving oil-well pump | |
| CN203516026U (en) | Bridge-crossing type inverted pull-down pump | |
| CN204283823U (en) | Divide to adopt and separate formula oil well pump | |
| RU2513896C1 (en) | Method of dual operation of two strata with one well | |
| CN104454476B (en) | Bridge-crossing type inverted pull-down pump | |
| CN204344091U (en) | A kind of reacting cycle liquid drives oil-extracting screw pump | |
| CN107269249A (en) | Bias delivery valve minor diameter oil well pump | |
| RU131075U1 (en) | INSTALLATION FOR SIMULTANEOUS SEPARATE PRODUCTION AND PUMPING IN ONE WELL | |
| CN104533765A (en) | Double-fixation scale-blockage-preventing long-plunger sand-preventing oil well pump | |
| CN205315218U (en) | Formula sand pump can creep into | |
| CN202431258U (en) | Flow string for oil well | |
| CN210598927U (en) | Special downhole hydraulic motor for oil production | |
| CN201193602Y (en) | Composite selective mining pump with rod pump and electric submersible pump | |
| CN209875142U (en) | Oil-water separation system under pumping and production-injection integrated pump well | |
| CN209494553U (en) | A kind of borehole fluid lifting device | |
| CN202914046U (en) | Plug-in screw pump system | |
| CN102720663A (en) | Special oil-well pump for multifunctional submersible linear motor | |
| CN205401064U (en) | Oil draw -out device with prevent blockking up function | |
| CN202157953U (en) | Load-reduction sucker rod string | |
| CN205349677U (en) | Annular plunger float buret formula oil -well pump | |
| CN202690391U (en) | Novel anti-blocking deep-pumping oil-well pump of solid plunger | |
| CN103939319A (en) | Three-tube type linear motor oil well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |