CN2207440Y - Screw pump hot well-flushing side wall valve - Google Patents
Screw pump hot well-flushing side wall valve Download PDFInfo
- Publication number
- CN2207440Y CN2207440Y CN 94217305 CN94217305U CN2207440Y CN 2207440 Y CN2207440 Y CN 2207440Y CN 94217305 CN94217305 CN 94217305 CN 94217305 U CN94217305 U CN 94217305U CN 2207440 Y CN2207440 Y CN 2207440Y
- Authority
- CN
- China
- Prior art keywords
- well
- screw pump
- joint
- valve
- hole
- 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
- 238000011010 flushing procedure Methods 0.000 title description 3
- 238000005086 pumping Methods 0.000 claims abstract 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 6
- 238000000338 in vitro Methods 0.000 abstract 1
- 238000001727 in vivo Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 206010016825 Flushing Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A side wall valve device of a screw pump hot washing well for an oil pumping well in an oil field can solve the problem that the hot washing well can be carried out without hoisting of crane equipment when the hot washing well of the screw pump oil pumping well is washed. The upper joint 3 of the screw pump is an eccentric body, and a corresponding eccentric joint 8 is connected between the upper joint and an oil pipe; a hole d is arranged at the thick-wall end part of the eccentric joint and is provided with a uniflow valve 7 and a valve seat 5, and in-vivo and in-vitro hole inlet and outlet flow passages (b and c) are arranged on the valve seat and the hole wall and are used as a circulating channel of a hot washing well on an underground pump body.
Description
The utility model relates to the sidewall valve that can form the down-hole circulation canal when oil screw pump pumpingh well heat is washed.
Screw pump is a kind of rotary volume pump.Under normal condition, form isolated each other, sealed hollow between pump upper rotor part and the stator.When work, the single head helical rotor rotates in the double end arc spiral die cavity of stator on the pump; When the rotor forward rotation, isolated each other, sealed hollow just rises along the spiral rotation continuously, and liquid rises thereupon in the cavity, and oil screw pump pumpingh well can be transported to ground to underground petroleum continuously according to this operating principle.Owing to contain the composition of wax in the oil, the ratio that has is higher, wax sticks in course of conveying on contact tube wall, sucker rod and the underground equipment with oil, the oil duct flow path is diminished, increase the resistance that rises, make the decrease in efficiency of oil production equipment, therefore just must regularly carry out hot water and clean paraffin removal oil well.At present need be during hot clean-up well with the large-tonnage crane sucker rod---pump upper rotor part system slings, make rotor and divided stator from, cause artificial heat to wash passage.Use crane sucker rod again after washing well---rotor-support-foundation system is transferred and is returned on the origin-location.Find out that thus hot clean-up well needs crane, the complex procedures time is long, influences the ordinary production of oil well; In lifting process, diminish simultaneously on the pump part and between assembly relation, pump efficiency is descended.
The purpose of this utility model is to avoid above-mentioned present the deficiencies in the prior art, and the screw pump hot clean-up well sidewall valve of down-hole circulation canal can be provided when providing a kind of heat to wash, and helps the ordinary production of oil well.
The purpose of this utility model can solve by the following technical programs: making the screw pump top connection is eccentric body, is connected to corresponding eccentric joint (8) between top connection and the oil pipe.Single current valve 7 and valve seat 5 are adorned in thick end perforate at eccentric joint, have the manhole appendix runner can realize the design's purpose on valve seat and the hole wall.
The utility model can have following effect than above-mentioned present technology: adopt this device on screw pump, can the same normal heat well-flushing when hot clean-up well with other mechanical oil well, do not need to adopt crane, the damage of stator rubber lining and the generation of sucker rod screw thread dropout phenomenon have been avoided, shorten time between well-flushings and reduced expenses, helped the production of oil well.
Figure is the utility model complete section diagrammatic sketch.
Below in conjunction with accompanying drawing will the utility model is described in further detail:
Shown in figure, eccentric body is made in the top connection 3 that screw pump (1,2) is connected with oil pipe 9, and corresponding eccentric joint 8 is housed between top connection 3 and the oil pipe 9, has axial hole d, dress single current valve 7 and single current valve seat 5 in the d of hole on the end of the eccentric heavy wall side of joint 8; Have at this side opening d wall and valve seat 5 walls to be communicated with into orifice flow road b, and on the hole d wall of joint 8 inner chambers runner C is arranged.
For the sealing of valve, can adorn between valve seat 5 and hole d wall has sealing ring pad a or adopts fluid sealant on the contact surface between joint ring 6, two joints (3,8); Connection between two joints (3,8) can realize by interior heavy bolt 4.
During ordinary production under differential pressure action the single current valve close.When heat was washed, hydrothermal solution had well head to enter the down-hole through the circular passage between sleeve pipe and oil pipe, enters in the single current valve 7 by hole b, enters the oil pipe inner chamber through via hole C and returns out ground, finished the hot clean-up well circulation.
Claims (3)
1, a kind of screw pump hot clean-up well sidewall valve that is used on the oil field pumping well, it is gone up in screw pump top connection (3) and constitutes, and it is characterized in that:
(1), top connection (3) is eccentric body, is connected to eccentric joint (8) between top connection (3) and oil pipe (9);
(2), at the heavy wall end perforate (d) of eccentric joint (8) dress single current valve (7), valve seat (5), on valve seat (5) and hole (d) wall into and out of the orifice flow road (b, c) arranged;
2, hot clean-up well device according to claim 1 is characterized in that: can adorn joint ring (6) between valve seat (5) and hole (d) wall.
3, hot clean-up well device according to claim 1 is characterized in that: sealing ring pad (a) is arranged on the contact surface between the joint (3,8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217305 CN2207440Y (en) | 1994-07-13 | 1994-07-13 | Screw pump hot well-flushing side wall valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217305 CN2207440Y (en) | 1994-07-13 | 1994-07-13 | Screw pump hot well-flushing side wall valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207440Y true CN2207440Y (en) | 1995-09-13 |
Family
ID=33832789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94217305 Expired - Fee Related CN2207440Y (en) | 1994-07-13 | 1994-07-13 | Screw pump hot well-flushing side wall valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207440Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594836A (en) * | 2015-02-15 | 2015-05-06 | 山东颜山泵业有限公司 | Backwash valve of screw pump |
-
1994
- 1994-07-13 CN CN 94217305 patent/CN2207440Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594836A (en) * | 2015-02-15 | 2015-05-06 | 山东颜山泵业有限公司 | Backwash valve of screw pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |