CN1869447A - Combined plunger oil-well pump - Google Patents
Combined plunger oil-well pump Download PDFInfo
- Publication number
- CN1869447A CN1869447A CN 200610044172 CN200610044172A CN1869447A CN 1869447 A CN1869447 A CN 1869447A CN 200610044172 CN200610044172 CN 200610044172 CN 200610044172 A CN200610044172 A CN 200610044172A CN 1869447 A CN1869447 A CN 1869447A
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- CN
- China
- Prior art keywords
- ring
- well pump
- plunger
- plunger oil
- middle joint
- 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.)
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Abstract
The invention discloses a combined plunger oil well pump that includes pump canister and plunger. The plunger assembly includes upper traveling valve and the sealing assembly, middle joint, down traveling valve and down joint. The sealing assembly includes central pipeline and upper righting ring, end ring, upper leather cup, upper clamping collar, down leather cup, down righting ring, and locking ring. The invention has the advantages of simple structure, reliable working, economic and could lower producing cost.
Description
One, technical field
The present invention relates to the petroleum industry oil production equipment, particularly a kind of combined plunger oil-well pump.
Two, background technique
In petroleum production, generally need oil well pump to carry out the oil well lifting, with the fluid extraction ground in the pit shaft.Often need in the on-the-spot reality to adjust swabbing parameter stroke and jig frequency, to satisfy oil well production.At present, mainly there is the deficiency of two aspects in used oil well pump: 1. same specification oil pump plunger piston length is fixed, and inconvenience is adjusted arbitrarily; 2. the throw of pump of pumping is realized by changing pump barrel length; 3. plunger can not make up.
Three, summary of the invention
The technical problem to be solved in the present invention provides a kind of improved reliable operation, on-the-spot practical combined plunger oil-well pump, and it can overcome effectively or remedy shortcoming or the deficiency that exists in the above-mentioned prior art.
Combined plunger oil-well pump of the present invention, comprise pump barrel and plunger piston assembly, described plunger piston assembly comprise upper travelling valve and and its seal assembly that links to each other in turn, middle joint, lower travelling valve and lower contact, described seal assembly comprise center tube and on install in turn last centering ring, end ring, go up leather cup, upper press ring, middle leather cup, following pressure ring, down cup, time centering ring and locking ring.
Wherein, described plunger seal assembly can repeatedly be connected with middle joint.Described center tube top is connected with last valve bonnet, and the bottom is established with locking ring and is connected with middle joint.Described pressure ring upper top is provided with certain radian, matches with last, middle leather cup lower end.Described locking ring is provided with internal thread, is installed on the center tube of middle joint upper end.Described middle joint bottom is connected with following valve upper end.
The present invention has following advantage compared with prior art:
1, have the plunger combination function, the seal assembly of its plunger can arbitraryly as required repeatedly be formed, and satisfies the different requirements of in the oil well production oil being drawn parameter.
2, simplified the oil well pump structure, simple to operate, economical and practical, cost is low.
Four, description of drawings
Accompanying drawing is a structural representation of the present invention.
Five, embodiment
Consult accompanying drawing, a kind of combined plunger oil-well pump, comprise pump barrel 20 and plunger piston assembly, plunger piston assembly comprise upper travelling valve and and its seal assembly that links to each other in turn, middle joint 15, lower travelling valve and lower contact 19, seal assembly comprise center tube 5 and on install in turn last centering ring 6, end ring 7, go up leather cup 8 and upper press ring 9, middle leather cup 10, following pressure ring 11, down cup 12, time centering ring 13 and locking ring 14.
The plunger seal assembly can be connected for more than 15 time with middle joint.Center tube 5 tops are connected with last valve bonnet 1, and the bottom is connected with middle joint 15 with locking ring 14.The pressure ring upper end portion is provided with certain radian, matches with last, middle leather cup 8,10 lower ends.Locking ring 14 is provided with internal thread, is installed on the center tube 5 of middle joint 15 upper ends.The middle joint bottom is connected with following valve bonnet 16 upper ends.Upper travelling valve comprises the last valve bonnet 1 that is connected with center tube 5, is installed on upper valve base 3 and upper valve ball 2 in the valve.Lower travelling valve comprises up and down respectively the following valve bonnet 16 that is connected with lower contact 19 with middle joint and wherein lower valve base 18 and lower valve ball 17 is installed.Sealing 4 is installed on upper valve base and the lower valve base.
Claims (6)
1, a kind of combined plunger oil-well pump, comprise pump barrel and plunger piston assembly, it is characterized in that described plunger piston assembly comprise upper travelling valve and and its seal assembly that links to each other in turn, middle joint, lower travelling valve and lower contact, described seal assembly comprise center tube and on install in turn last centering ring, end ring, go up leather cup, upper press ring, middle leather cup, following pressure ring, down cup, time centering ring and locking ring.
2, combined plunger oil-well pump according to claim 1 is characterized in that described plunger seal assembly can repeatedly be connected with middle joint.
3, combined plunger oil-well pump according to claim 1 and 2 is characterized in that described center tube top is connected with last valve bonnet, and the bottom is connected with middle joint with locking ring.
4, combined plunger oil-well pump according to claim 1 and 2 is characterized in that described pressure ring upper end portion is provided with certain radian, matches with last, middle leather cup lower end.
5, combined plunger oil-well pump according to claim 1 and 2 is characterized in that described locking ring is provided with internal thread, is installed on the center tube of middle joint upper end.
6, combined plunger oil-well pump according to claim 1 and 2 is characterized in that described middle joint bottom is connected with following valve upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044172 CN1869447A (en) | 2006-05-10 | 2006-05-10 | Combined plunger oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044172 CN1869447A (en) | 2006-05-10 | 2006-05-10 | Combined plunger oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1869447A true CN1869447A (en) | 2006-11-29 |
Family
ID=37443194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610044172 Pending CN1869447A (en) | 2006-05-10 | 2006-05-10 | Combined plunger oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1869447A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2460902C1 (en) * | 2011-06-07 | 2012-09-10 | Дмитрий Анатольевич Будяков | Downhole rod pump |
| WO2014017942A1 (en) * | 2012-07-25 | 2014-01-30 | Дигвид Энтерпрайсиз Лимитед | Downhole sucker-rod pump |
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN110206494A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Process pipe column matched with cable type oil pumping unit |
-
2006
- 2006-05-10 CN CN 200610044172 patent/CN1869447A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2460902C1 (en) * | 2011-06-07 | 2012-09-10 | Дмитрий Анатольевич Будяков | Downhole rod pump |
| WO2014017942A1 (en) * | 2012-07-25 | 2014-01-30 | Дигвид Энтерпрайсиз Лимитед | Downhole sucker-rod pump |
| RU2559679C1 (en) * | 2012-07-25 | 2015-08-10 | Дигвид Энтерпрайсиз Лимитед | Well sucker-rod pump |
| CN110206494A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Process pipe column matched with cable type oil pumping unit |
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN109653710B (en) * | 2018-11-09 | 2021-11-02 | 大港油田集团有限责任公司 | Hydraulic drive reciprocating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |