CN203756483U - Cable through heating oil well pump - Google Patents
Cable through heating oil well pump Download PDFInfo
- Publication number
- CN203756483U CN203756483U CN201420171384.9U CN201420171384U CN203756483U CN 203756483 U CN203756483 U CN 203756483U CN 201420171384 U CN201420171384 U CN 201420171384U CN 203756483 U CN203756483 U CN 203756483U
- Authority
- CN
- China
- Prior art keywords
- pump
- assembly
- oil well
- fixed valve
- cable
- 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 - Lifetime
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 title claims abstract description 13
- 210000000078 claw Anatomy 0.000 claims abstract 4
- 230000002500 effect on skin Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Abstract
The utility model discloses a cable through heating oil well pump which is applicable to exploitation of thickened oil in an oil well. The pump is composed of a pump cylinder assembly (2), a plunger assembly (3), a floating pump cylinder assembly (8) and a fixed valve assembly (9). A centralizing limit sleeve (11) is installed on the lower portion of the fixed valve assembly (9), an elastic locking clamping claw (12) is arranged on the lower portion of the floating pump cylinder assembly (8), the centralizing limit sleeve (11) guides and shrinks the locking clamping claw (12) to achieve location to limit upward moving of the locking clamping claw (12), and oil well pump failure caused by the fact that a fixed valve (5) deviates from a fixed valve seat (7) is avoided. The pump directly enables a skin effect heating cable to be communicated with the lower portion of the oil well pump to heat drop thickened oil, and the skin effect heating cable can be utilized to conduct high-efficiency thickened oil exploitation.
Description
Technical field
The utility model relates to a kind of electric cable heating oil well pump of crossing, and can directly Skin effect heating cable be communicated to heating, viscosity reducing viscous crude under oil well pump, and it is applicable to the exploitation of oil well viscous crude.
Background technique
At present, on-the-spotly use cavity ring to cross cable pump to coordinate hollow rod, realize under pump, crude oil heating viscosity-reducing heavy crude producing in pump, on pump.Travelling valve and standing valve that cavity ring is crossed cable pump are all sliding bush types.When operation, fixed valve base is gone into the well with oil pipe together with pump barrel, and plunger piston assembly, standing valve, slipper seal cover etc. are gone into the well with sucker rod, and slipper seal cover is through fixed valve base.It is to carry to fixed valve base top on likely in oil pumping process that this pump exists two defects one, causes oil well pump to lose efficacy; The 2nd, due to the not only thin but also long swing that causes standing valve of lower plunger, be unsuitable for inclined shaft and use.
Summary of the invention
The purpose of this utility model is to provide the electric cable heating oil well pump excessively of a kind of standing valve flexible movements, elastic locking righting, reliable performance, efficiently solve the problem of swing and the seal failure of standing valve, can realize with Skin effect heating cable high-efficiency mining viscous crude.
The utility model is by pump barrel assembly, plunger piston assembly, pump barrel assembly and standing valve assembly composition float, its standing valve assembly is connected to the lower end of pump barrel assembly, the top of standing valve assembly is fixed valve base, bottom is righting stop collar, the lower end of plunger piston assembly is elongated lower plunger, the pump barrel assembly that floats floats on lower plunger, the top of unsteady pump barrel assembly is standing valve, bottom is lock dog, standing valve lower end has standing valve righting block to match with fixed valve base endoporus, lock dog upper end also has lower centralizer body to match with righting stop collar endoporus, prevent the swing of standing valve.In oil pumping process, lock dog can meet obstructions while arriving righting stop collar and stop uply, causes oil well pump to lose efficacy thereby the pump barrel assembly of avoiding floating departs from fixed valve base; Standing valve righting block is all the time in fixed valve base endoporus, and lower centralizer body also matches with righting stop collar endoporus all the time, has so just ensured standing valve and fixed valve base centering, prevents that the swing of standing valve in inclined shaft was lost efficacy.
The utility model compact structure, can realize cable and cross pump and directly heat viscous crude, and performance safety is reliable.
Brief description of the drawings.
Fig. 1 is the utility model structure principle chart.
Embodiment.
Below in conjunction with accompanying drawing, the utility model is described in detail.
The utility model is by pump barrel assembly (2), plunger piston assembly (3), pump barrel assembly (8) and standing valve assembly (9) composition float, its standing valve assembly (9) is connected to the lower end of pump barrel assembly (2), the top of standing valve assembly (9) is fixed valve base (7), bottom is righting stop collar (11), the lower end of plunger piston assembly (3) is elongated lower plunger (4), the pump barrel assembly (8) that floats floats on lower plunger (4), the top of unsteady pump barrel assembly (8) is standing valve (5), bottom is lock dog (12), standing valve (5) lower end has standing valve righting block (6) to match with fixed valve base (7) endoporus, lock dog (12) upper end also has lower centralizer body (10) to match with righting stop collar (11) endoporus, prevent the swing of standing valve (5).When operation, first pump barrel assembly (2) is connected with oil pipe column with standing valve assembly (9), G.I.H precalculated position together, then plunger piston assembly (3) is connected with hollow rod (1) with unsteady pump barrel assembly (8), G.I.H together, plunger piston assembly (3) enters after pump barrel assembly (2), under the effect of sucker rod (1) deadweight, lock dog (12) contraction deformation of unsteady pump barrel assembly (8) is through the righting stop collar (11) of standing valve assembly (9), arrive righting stop collar (11) and unclamp below, on carry over-stroke, enter normal oil pumping state.In oil pumping process, when lock dog (12) arrives righting stop collar (11), righting stop collar (11) guiding and contraction lock dog (12) realize location, and it is up to limit lock dog (12), thereby avoid standing valve (5) to depart from the oil well pump inefficacy that fixed valve base (7) causes; Standing valve righting block (6) is all the time in fixed valve base (7) endoporus, lower centralizer body (10) also matches with righting stop collar (12) endoporus all the time, ensure standing valve (5) and fixed valve base (7) centering, prevented that the swing of standing valve in inclined shaft (5) was lost efficacy.While playing pump, upper exhaust core bar (1) is mentioned plunger piston assembly (3), in the time that lock dog (12) arrives stop collar (11), lock dog under the pulling of hollow rod (1) (12) can contraction deformation be passed righting stop collar (11) and unclamp, then plunger piston assembly (3) and unsteady pump barrel assembly (8) are tripped out with hollow rod (1), and recurrence oil pipe column trips out pump barrel assembly (2) and standing valve assembly (9).This pump can solve the problem of swing and the seal failure of standing valve, realizes with Skin effect heating cable high-efficiency mining viscous crude.
Claims (1)
1. cross electric cable heating oil well pump for one kind, it is made up of pump barrel assembly (2), plunger piston assembly (3), unsteady pump barrel assembly (8) and standing valve assembly (9), righting stop collar (11) is equipped with in the bottom that it is characterized in that standing valve assembly (9), and pump barrel assembly (8) bottom of floating is provided with elastic locking claw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171384.9U CN203756483U (en) | 2014-04-10 | 2014-04-10 | Cable through heating oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420171384.9U CN203756483U (en) | 2014-04-10 | 2014-04-10 | Cable through heating oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756483U true CN203756483U (en) | 2014-08-06 |
Family
ID=51251766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420171384.9U Expired - Lifetime CN203756483U (en) | 2014-04-10 | 2014-04-10 | Cable through heating oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818966A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Recovery well |
-
2014
- 2014-04-10 CN CN201420171384.9U patent/CN203756483U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818966A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Recovery well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |