CN204003392U - The efficient oil well pump with long plunger piston of a kind of Novel gas-tight - Google Patents
The efficient oil well pump with long plunger piston of a kind of Novel gas-tight Download PDFInfo
- Publication number
- CN204003392U CN204003392U CN201420483862.XU CN201420483862U CN204003392U CN 204003392 U CN204003392 U CN 204003392U CN 201420483862 U CN201420483862 U CN 201420483862U CN 204003392 U CN204003392 U CN 204003392U
- Authority
- CN
- China
- Prior art keywords
- pump
- plunger
- pump barrel
- oil well
- barrel
- 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
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 238000010793 Steam injection (oil industry) Methods 0.000 abstract description 5
- 239000010779 crude oil Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model patent relates to the efficient oil well pump with long plunger piston of a kind of Novel gas-tight, its main feature is that pump barrel is formed by connecting by pump barrel box cupling by upper and lower pump barrel, in upper pump barrel footpath, be upwards provided with a plurality of pump barrel relief holes, plunger is combined by upper and lower plunger, lower plunger adopts and adds long-plunger, its length is length of stroke, in plunger combination place, is provided with plunger relief hole.This oil well pump can reduce the impact of gas on pump efficiency effectively, increases the feed liquor amount of pump, greatly improves pump efficiency; The design of pump barrel relief hole, has realized crude oil in oil pipe releasing pressure automatically simultaneously, makes steam injection and upkeep operation very convenient, has improved operating efficiency; This oil well pump also has that simple in structure, lower pump technique is easy, stable and reliable for performance, the feature of long service life.
Description
Technical field
The utility model patent belongs to oil field equipment field, is a kind of efficient oil well pump with long plunger piston of Novel gas-tight that is widely used in all kinds of oil wells.
Background technique
At present, oil well pump is normally comprised of pump barrel, plunger, standing valve, traveling valve, by the upper and lower to-and-fro motion of pumping unit horsehead, drives sucker rod and plunger upward and downward.But plunger is when lower dead centre, and pump barrel inside and outside differential pressure is very large, has a strong impact on the unlatching of upstroke process standing valve, if enter the large or pump of pump fluid air content, be not fully filled, all can cause upstroke pump internal pressure to decline slow, standing valve is opened and is lagged behind, reduce feed liquor amount, affect pump efficiency.The problems referred to above that in use exist for solving conventional oil well pump, have invented this kind of efficient oil well pump with long plunger piston of Novel gas-tight.
Summary of the invention
The utility model provides a kind of obvious minimizing gases affect, has significantly improved pump efficiency, can realize steam injection operation, automatically the Multifunction oil well pump with long plunger piston of draining, this oil well pump also has that simple, the lower pump technique of pump body structure is easy, stable and reliable for performance, the feature of long service life.
The technological scheme of the utility model patent realizes by following measures: this oil well pump is by combining pump barrel and combined plunger forms, wherein, in unipump socket joint hoop footpath, be upwards provided with a plurality of pump barrel relief holes, combined plunger is combined by upper plug and the lower plunger in same footpath, radially also has a plurality of plunger relief holes in joint.
The distance of described pump barrel relief hole position and lower pump barrel bottom is greater than the length of lower plunger.
The length of described lower plunger is the length of stroke of plunger upward and downward.
The efficient oil well pump with long plunger piston of gas-tight of making according to such scheme, by the design of relief hole, when combined plunger runs to lower dead centre, combined plunger joint plunger relief hole is communicated with pump barrel relief hole, make the rapid pressure release of lower pump chamber, guarantee that standing valve opens in time, increase feed liquor amount; When combined plunger runs to upper dead center, pump barrel relief hole is in lower plunger below, and pump intracavity gas is discharged from pump barrel relief hole, and crude oil flows into, and increases the full level of pump, has improved pump efficiency.
In addition, due to the setting of relief hole, when on when carrying sucker rod and making combined plunger deviate from pump barrel, can realize the automatic draining of steam injection operation and workover eration, very convenient, practicality, has effectively improved operating efficiency.This oil well pump also has rational in infrastructure, and simplicity of design is with low cost, easy to use, the advantages such as reliable performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model patent.
Embodiment
Referring to Fig. 1, the utility model oil well pump, mainly comprise the combination pump barrel of pump barrel 1, pump barrel box cupling 3, lower pump barrel 7 formations and combined plunger two-part that upper plug 2, lower plunger 6 form, wherein going up pump barrel 1 upper end is connected with oil pipe, pump barrel box cupling 3 peripheral wall footpaths are upwards laid with a plurality of pump barrel relief holes 4, and this pump barrel relief hole 4 and lower pump barrel 7 lower end surfaces distances are greater than the length of lower plunger 6.Upper plug 2, lower plunger 6 are tubular structure, and lower plunger 6 is for adding long-plunger, and plunger combination place offers a plurality of plunger relief holes 5.Lower pump barrel 7 bottoms have standing valve, and the bottom of lower plunger 6 has a lower travelling valve, and upper plug 2 tops have a upper travelling valve, and upper plug 2 upper ends are connected with sucker rod, and whole combined plunger is reciprocating.
In oil pumping process, combined plunger pumps, and when combined plunger is positioned at lower dead centre, pump barrel relief hole 4 is communicated with plunger relief hole 5, and pump barrel inner fluid is by lower travelling valve pressure release, is conducive to pump barrel feed liquor when up; In the up stage, pump barrel relief hole 4 is communicated with and closes with plunger relief hole 5, and the upper and lower valve oil liquid pressure ShiShimonoseki on pump of moving about is closed, now, standing valve is subject to pump inside and outside differential pressure and opens, and fluid enters in lower pump chamber, when combined plunger is up to upper dead center, pump barrel relief hole 4 is in lower plunger 6 belows, oil jacket annular space is communicated with pump chamber, and pump intracavity gas is discharged from pump barrel relief hole 4, and crude oil flows into pump chamber, formation gas-liquid exchanges, and has increased the full level of pump; Along with combined plunger is when descending, standing valve cuts out, the upper and lower valve that moves about is opened under the pressure of fluid, fluid is discharged on pump by combined plunger, and when combined plunger goes downwards to lower dead centre, plunger relief hole 5 is communicated with again with pump barrel relief hole 4, lower pump chamber pressure release, upper travelling valve is closed rapidly, so that standing valve can be opened in time during upstroke, realizes pumping process.
When oil well is carried out to steam injection operation, only need will on combined plunger, carry to oil pipe, can be from well head steam injection, steam enters pump barrel along the annular space between combined plunger and oil pipe, then by pump barrel relief hole 4 sprue bushings.
When oil well is carried out to well workover upkeep operation, as long as will carry on combined plunger to ground, crude oil can be realized the automatic draining of crude oil in oil pipe by pump barrel relief hole.
Claims (4)
1. the efficient oil well pump with long plunger piston of Novel gas-tight, this oil well pump is comprised of upper and lower pump barrel and upper and lower plunger, it is characterized in that: in the peripheral wall of pump barrel, be provided with a plurality of pump barrel relief holes, plunger is comprised of upper and lower two plungers, and plunger joint radially has a plurality of plunger relief holes.
2. the efficient oil well pump with long plunger piston of Novel gas-tight according to claim 1, is characterized in that: the distance of described pump barrel relief hole position and lower pump barrel bottom is greater than the length of lower plunger.
3. the efficient oil well pump with long plunger piston of Novel gas-tight according to claim 1, is characterized in that: the length of described lower plunger equals the length of stroke of plunger upward and downward.
4. the efficient oil well pump with long plunger piston of Novel gas-tight according to claim 1, is characterized in that: described upper and lower pump barrel is by connecting with the pump barrel box cupling of relief hole radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483862.XU CN204003392U (en) | 2014-08-26 | 2014-08-26 | The efficient oil well pump with long plunger piston of a kind of Novel gas-tight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483862.XU CN204003392U (en) | 2014-08-26 | 2014-08-26 | The efficient oil well pump with long plunger piston of a kind of Novel gas-tight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003392U true CN204003392U (en) | 2014-12-10 |
Family
ID=52043400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420483862.XU Expired - Fee Related CN204003392U (en) | 2014-08-26 | 2014-08-26 | The efficient oil well pump with long plunger piston of a kind of Novel gas-tight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222891A (en) * | 2018-03-20 | 2018-06-29 | 西南石油大学 | A kind of composite oil pumping device of linear dynamo oil pump and electric submersible pump concatenation |
| CN111197572A (en) * | 2020-02-24 | 2020-05-26 | 胜利油田胜机石油装备有限公司 | Ultra-long stroke oil pump |
-
2014
- 2014-08-26 CN CN201420483862.XU patent/CN204003392U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222891A (en) * | 2018-03-20 | 2018-06-29 | 西南石油大学 | A kind of composite oil pumping device of linear dynamo oil pump and electric submersible pump concatenation |
| CN111197572A (en) * | 2020-02-24 | 2020-05-26 | 胜利油田胜机石油装备有限公司 | Ultra-long stroke oil pump |
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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: 20141210 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |