CN201554633U - Falling object protective oil pump capable of performing annulus logging - Google Patents
Falling object protective oil pump capable of performing annulus logging Download PDFInfo
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- CN201554633U CN201554633U CN2009202288785U CN200920228878U CN201554633U CN 201554633 U CN201554633 U CN 201554633U CN 2009202288785 U CN2009202288785 U CN 2009202288785U CN 200920228878 U CN200920228878 U CN 200920228878U CN 201554633 U CN201554633 U CN 201554633U
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Abstract
A falling object protective oil pump capable of performing annulus logging comprises an oil pipe, an upper coupling and a cross-over pipe. A short pump barrel and a pump barrel elongated barrel are arranged inside the cross-over pipe, the short pump barrel is connected with the pump barrel elongated barrel and sleeved on a long plunger, the upper end of the long plunger is connected with a sucker rod string through an upper traveling valve, the lower end of the long plunger is connected with an elastic joint through a lower traveling valve, and the lower end of the pump barrel elongated barrel is connected with a lower coupling. Through utilizing a structure of engaging the long plunger with the short pump barrel, the cross-over pipe is sleeved outside the pump barrel to form an annular falling object sedimentation space, the lower portion of the long plunger is additionally provided with a wear resistant mechanism and the like so as to lead the oil pump to have characteristics of preventing falling objects from being clamped and buried into the plunger and blocking a fixed valve, preventing the plunger from being eccentrically worn and realizing annulus logging. In addition, the oil pump has certain functions of controlling sand and deep pumping, can effectively increase pumping efficiency and prolong pump inspection period, and is adaptable to extracting oil from deep oil wells with problems of casing deformation and sand production.
Description
Technical field
The utility model is the deep-well tubing pump that a kind of oilfield machinery crude oil extraction is used, and is a kind of bar oil production equipment that has.Be adapted to exploit the deep layer well recovery that has junk and shake out phenomenon, can realize annulus logging, effectively improve pump efficiency, prolong pump detection period.
Background technique
At present, the oil field mainly adopts common tubing pump to carry out mechanical oil recovery, and in oil well production, some foreign material appear in inevitable federation in the oil pipe: the foreign material that fall into from well head when operation is arranged, the dirty skin, the scale that come off on the R a T wall are arranged, the broken rubber that is suspended in after packing element is peeled off the fluid is arranged, silt particle that carries out in the fluid etc. is arranged.These foreign material can bring harm to oil well production, cause oil well pump to lose efficacy, and mainly show as:
(1) when oil pumping, foreign material enter in the pump barrel, and plunger is stuck, cause oil well pump to lose efficacy.
(2) when oil pumping, the foreign material pad makes valve ball not set on the ball valve sealing face, causes the oil well pump leakage to lose efficacy.
(3) when stop pumping, foreign material are deposited on the oil well pump, plunger are buried and stops up standing valve, make when taking out again that plunger and standing valve akinesia cause oil well pump to lose efficacy.
For addressing this problem, normal all kinds of anti-junk regular valve devices of employing in oil field and the supporting use of oil well pump, though these apparatus structures are different, but principle is the same, all be that standing valve is extended upward a segment distance, make junk be deposited on gap between standing valve and the urceolus, avoid junk to be deposited on the standing valve.But there are a lot of defectives in this device: 1. the space of deposition foreign material is little, and when carrying silt particle when junk in the more or fluid, the space is filled very soon, and standing valve still can be blocked.2. after standing valve was elevated, it is big that the clearance when plunger bumps pump becomes, and causes pump efficiency to reduce, and when air content is higher in the fluid, also gas lock may occur.3. can not stop junk to enter pump barrel, cause plunger to be stuck or bury.
In addition, also there is the oil field to use sand-control pump to solve the junk problem.Utilize the sand setting passage and the duplex fitting that design on the sand-control pump, junk is introduced in the sand setting tail pipe depositing, preferably resolve the deficiency that anti-junk regular valve device exists.But owing to be subjected to structural limitations, the duplex fitting external diameter is bigger, be generally φ 114mm, make sand-control pump have following problem: 1. the oil field is used the widest by 51/2 " casing inner diameter is 121mm, when sleeve pipe deforms (this phenomenon widely exists), perhaps during the internal surface of sleeve pipe fouling; in playing the pump operation; the holddown phenomenon will take place, causes workover or causes oil well to scrap when serious, brings enormous economic loss to the oil field.2. sand-control pump can not supporting use annulus logging technology.Rod pumped well annulus logging technology is to carry out dynamic monitoring in the oilfield development process, guarantee the important means of stable yields, fitness for purpose can be tested under the situation of not stopping well, can truly reflect the current intelligence of pumping well with the data of toilet test, for oil field development dynamic analysis and production management provide reliable primary data.Because of test instrument by oil, collar-shaped space G.I.H, the necessary condition that therefore realizes annulus logging is that the maximum outside diameter of oil well pump is less than φ 90mm.When adopting sand-control pump to produce, can't use the annulus logging technology.
Summary of the invention
The purpose of this utility model provides and a kind ofly can effectively prevent junk card buried column plug and stop up standing valve, tubing pump that simultaneously can supporting use annulus logging technology.
But the purpose of this utility model is achieved in that a kind of annulus logging and prevents the junk oil well pump, comprise oil pipe, go up box cupling, cross under, the cross under upper end links to each other with oil pipe by last box cupling, the cross under lower end is connected on the box cupling of bottom, connect oil drainer and standing valve below the box cupling of bottom successively, short pump barrel and pump barrel lengthening tube are in cross under, and short pump barrel is connected with pump barrel lengthening tube, is sleeved on the long-plunger; The long-plunger upper end links to each other with rod string by upper travelling valve, and the long-plunger lower end links to each other with elastomeric joint by lower travelling valve, and pump barrel lengthening tube lower end is connected with the bottom box cupling, forms annular deposition junk space between pump barrel lengthening tube cylindrical and cross under endoporus.
The plunger bottom is provided with the anti-eccentric wear mechanism that is made up of elastomeric joint and wear-resisting head.
Design has spring detent on the elastomeric joint, and the wear-resisting head external diameter is greater than the long-plunger external diameter.
The short pump barrel upper end is provided with centering ring.
Pump housing maximum outside diameter is less than φ 89mm.
But the annulus logging that the utility model provides is prevented the junk oil well pump, adopted long-plunger to cooperate the short pump barrel structure, the outer suit cross under of pump barrel lengthening tube, long-plunger lower end have designed anti-eccentric wear mechanism, compare the utility model with the anti-junk device of conventional tubing pump and other and have possessed following advantage:
(1) adopted long-plunger to cooperate the short pump barrel structure, when oil well pump work and stop pumping, the plunger upper part upper travelling valve does not enter pump barrel for one section all the time, makes junk can not enter pump barrel or piles up at the pump barrel oral area, but be deposited between pump barrel lengthening tube cylindrical and cross under endoporus in the formation annular space.This space internal diameter is less than φ 57mm, external diameter is φ 77mm, when stroke is 5.1 meters, annular space length is 7 meters, this space is far longer than prevents that deposition junk space is stayed by institute on the junk regular valve device, therefore can effectively prevent junk card, buried column plug and stop up standing valve, and the junk pad is lived the phenomenon that valve ball causes leakage, improve pump efficiency, prolonged pump detection period.
(2) this model utility deposition junk is not communicated with standing valve with the space, and therefore enough big junk deposition space can't cause and bump the pump clearance, reduces pump efficiency, also can not be subjected to gases affect to form gas lock.
(3) owing to upper travelling valve when upper and lower stroke need not enter in the pump barrel all the time, make the upper travelling valve external diameter directly limited by pump, thereby the reinforced structure that can adopt major diameter to be threaded.Make the intensity of upper travelling valve greatly improve, the disconnected easily problem of taking off in this place when having solved conventional tubing pump and in deep-well, using.
(4) this model utility maximum outside diameter is φ 89mm, therefore is used for 51/2 " during Casing for extracting oil, the holddown phenomenon can not take place, cause sleeve pipe to damage.
When (5) this model utility is recovered the oil, can supporting use annulus logging technology, the current intelligence of monitoring oil well under the situation of not stopping well is for oil field development dynamic analysis and production management provide reliable primary data.
(6) the anti-eccentric wear mechanism that is made up of elastomeric joint and wear-resisting head has been designed in the long-plunger bottom, and spring detent, wear-resisting head are arranged is the high hardness alloy part in design on the elastomeric joint, and its external diameter is slightly larger than plunger outer diameter.When pump was bumped in the plunger bottom, elastomeric joint and wear-resisting head were locked into one.In the normal pumping process of oil well pump, guarantee wall friction in wear-resisting head and the pump barrel lengthening tube all the time, avoided the easy eccentric wear failure phenomenon in long-plunger bottom, improved pump efficiency and pump detection period.When plunger in requisition on when carrying, wear-resisting head and pump barrel bottom collide, elastomeric joint can be freed with wear-resisting head.
In sum, the utility model can effectively prevent junk card buried column plug and stop up standing valve, realizes annulus logging, improves pump efficiency, prolongs pump detection period.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model adopts following structure: see Fig. 1, but a kind of annulus logging is prevented the junk oil well pump, comprise oil pipe 1, go up box cupling 2, cross under 3, cross under 4 upper ends link to each other with oil pipe 1 by last box cupling 3, cross under 4 lower ends are connected on the bottom box cupling 12, connect oil drainer 13 and standing valve 14 successively below the bottom box cupling 12, and short pump barrel 6 and pump barrel lengthening tube 7 are in cross under 3, short pump barrel 6 is connected with pump barrel lengthening tube 7, is sleeved on the long-plunger 8; Long-plunger 8 upper ends link to each other with rod string by upper travelling valve 2, long-plunger 8 lower ends link to each other with elastomeric joint 10 by lower travelling valve 9, pump barrel lengthening tube 7 lower ends are connected with bottom box cupling 12, form annular deposition junk space between pump barrel lengthening tube 7 cylindricals and cross under 4 endoporus.
Plunger 8 bottoms are provided with the anti-eccentric wear mechanism that is made up of elastomeric joint 10 and wear-resisting head 11.
Design has spring detent on the elastomeric joint 10, and wear-resisting head 11 external diameters are greater than long-plunger 8 external diameters.
Short pump barrel 6 upper ends are provided with centering ring 5.
Pump housing maximum outside diameter is less than φ 89mm.。
Following vertebra plunger 18 is communicated with upper plug 13 by center tube 15 and diverter valve 14.
Be provided with extension nipple 5 between top pump barrel box cupling 4 and the eccentric valve body 6.
Working principle of the present utility model is as follows:
During up stroke, plunger assembly is up under the drive of sucker rod, and last flow valve 2 and lower travelling valve 9 are closed, plunger assembly below pump chamber volume increases, pressure descends, and standing valve 14 is opened under the pump intake pressure effect, and the liquid between oil pipe and the sleeve pipe in the annular chamber enters in the pump chamber of plunger assembly below.
During down stroke, plunger assembly is descending, and plunger assembly below pump chamber volume reduces, pressure increases, standing valve 14 cuts out under the effect of self gravitation and chamber pressure, and the upper and lower valve that moves about is opened under the effect of chamber pressure, and liquid drains in the oil pipe of plunger assembly top in the pump chamber of plunger assembly below.
Claims (5)
1. but an annulus logging is prevented the junk oil well pump, comprise oil pipe (1), go up box cupling (2), cross under (3), cross under (4) upper end links to each other with oil pipe (1) by last box cupling (3), cross under (4) lower end is connected on the bottom box cupling (12), connect oil drainer (13) and standing valve (14) below the bottom box cupling (12) successively, it is characterized in that: short pump barrel (6) and pump barrel lengthening tube (7) are in cross under (3), short pump barrel (6) is connected with pump barrel lengthening tube (7), is sleeved on the long-plunger (8); Long-plunger (8) upper end links to each other with rod string by upper travelling valve (2), long-plunger (8) lower end links to each other with elastomeric joint (10) by lower travelling valve (9), pump barrel lengthening tube (7) lower end is connected with bottom box cupling (12), forms annular deposition junk space between pump barrel lengthening tube (7) cylindrical and cross under (4) endoporus.
2. but annulus logging according to claim 1 is prevented the junk oil well pump, it is characterized in that: plunger (8) bottom is provided with the anti-eccentric wear mechanism that is made up of elastomeric joint (10) and wear-resisting head (11).
3. but annulus logging according to claim 2 is prevented the junk oil well pump, it is characterized in that: elastomeric joint (10) is gone up design spring detent, and wear-resisting head (11) external diameter is greater than long-plunger (8) external diameter.
4. but annulus logging according to claim 1 is prevented the junk oil well pump, it is characterized in that: short pump barrel (6) upper end is provided with centering ring (5).
5. but the described annulus logging of claim 1 is prevented the junk oil well pump, and it is characterized in that: pump housing maximum outside diameter is less than φ 89mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202288785U CN201554633U (en) | 2009-10-16 | 2009-10-16 | Falling object protective oil pump capable of performing annulus logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202288785U CN201554633U (en) | 2009-10-16 | 2009-10-16 | Falling object protective oil pump capable of performing annulus logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554633U true CN201554633U (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202288785U Expired - Fee Related CN201554633U (en) | 2009-10-16 | 2009-10-16 | Falling object protective oil pump capable of performing annulus logging |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562542A (en) * | 2010-12-29 | 2012-07-11 | 中船重工中南装备有限责任公司 | Sand-preventing scale-preventing oil well pump with long plunger piston |
| CN104533765A (en) * | 2014-11-12 | 2015-04-22 | 胜利油田高原石油装备有限责任公司 | Double-fixation scale-blockage-preventing long-plunger sand-preventing oil well pump |
| CN107461329A (en) * | 2017-09-18 | 2017-12-12 | 丁新建 | A kind of antiscale tubing pump |
| CN110500264A (en) * | 2019-08-23 | 2019-11-26 | 程雅雯 | A kind of application method of the long oil well pump of long plunger sand control equipped with resistance sand hydrotubator |
| CN115749701A (en) * | 2022-12-06 | 2023-03-07 | 山东威马泵业股份有限公司 | Blowout-preventing pipe type oil well pump |
-
2009
- 2009-10-16 CN CN2009202288785U patent/CN201554633U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562542A (en) * | 2010-12-29 | 2012-07-11 | 中船重工中南装备有限责任公司 | Sand-preventing scale-preventing oil well pump with long plunger piston |
| CN102562542B (en) * | 2010-12-29 | 2015-09-02 | 中船重工中南装备有限责任公司 | Sand-preventing scale-preventing oil well pump with long plunger piston |
| CN104533765A (en) * | 2014-11-12 | 2015-04-22 | 胜利油田高原石油装备有限责任公司 | Double-fixation scale-blockage-preventing long-plunger sand-preventing oil well pump |
| CN107461329A (en) * | 2017-09-18 | 2017-12-12 | 丁新建 | A kind of antiscale tubing pump |
| CN110500264A (en) * | 2019-08-23 | 2019-11-26 | 程雅雯 | A kind of application method of the long oil well pump of long plunger sand control equipped with resistance sand hydrotubator |
| CN115749701A (en) * | 2022-12-06 | 2023-03-07 | 山东威马泵业股份有限公司 | Blowout-preventing pipe type oil well pump |
| CN115749701B (en) * | 2022-12-06 | 2023-11-17 | 山东威马泵业股份有限公司 | Blowout prevention pipe type 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: 20100818 Termination date: 20181016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |