CN2199305Y - Screw pump hot well washing device - Google Patents
Screw pump hot well washing device Download PDFInfo
- Publication number
- CN2199305Y CN2199305Y CN 94217304 CN94217304U CN2199305Y CN 2199305 Y CN2199305 Y CN 2199305Y CN 94217304 CN94217304 CN 94217304 CN 94217304 U CN94217304 U CN 94217304U CN 2199305 Y CN2199305 Y CN 2199305Y
- Authority
- CN
- China
- Prior art keywords
- well
- pump
- screw pump
- runner
- cavity
- 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
- 238000005406 washing Methods 0.000 title abstract description 3
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 4
- 239000003129 oil well Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 241001661918 Bartonia Species 0.000 description 1
- 206010016825 Flushing Diseases 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A screw pump hot well washing device used on an oil field pumping well. When the well is washed, the well can be washed by heat, and the well can be washed by heat without lifting by a crane like other mechanical pumping wells. A pump body shell 6 is mainly connected between an upper joint (8) and a lower joint (3) of the screw pump, and an annular cavity C is formed between the pump body shell and a stator shell 5; the lower joint 3 is connected with check valves (1, 2), a flow channel a for communicating the check valve with the cavity C is arranged on the lower joint, and a side hole flow channel e is arranged on the valve seat 1; the upper joint 8 is provided with a side hole flow channel d for communicating the cavity C with the upper cavity of the pump.
Description
The utility model relates to hot clean-up well device on the oil screw pump oil pumping well pump.
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 overcome the shortcoming that exists in the present prior art, a kind of need not the lifting is provided and on pump housing connector, is provided with the screw pump hot clean-up well device of runner and switch, can reduce investment, shorten duration of well flushing, help the ordinary production of oil well.
The purpose of this utility model can reach by following technical solution: the ball-and-seat of being closed by pressure differential is housed in the screw pump lower contact, the runner of linking up the inside and outside is arranged on the valve seat wall, valve insertion by pump lower contact upper runner can and pump in link up, can realize the design's purpose with the communication of pump upper chamber by annular channel C between the pump case.
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 accompanying drawing, oil pipe 10 usefulness box cuplings 9 are connected in the screw pump top connection 8 in the oil well, connect rotor in the pump with sucker rod 7 in the oil pipe.The utility model is the pump case 6 that is threaded between the upper and lower joint (8,3) of screw pump, forms toroidal cavity C between shell 6 and the stator case 5, can do the passage of hot clean-up well.Be connected to ball-and-seat (1,2) in the lower contact 3, the runner a between communication ball-and-seat (1,2) and the toroidal cavity C is arranged in the lower contact 3, the side opening runner e that links up the inside and outside is arranged on single current valve seat 1.The runner d that links up between toroidal cavity C and the screw pump upper chamber is arranged on top connection 8 walls.
Fluid enters in the pump by runner b during ordinary production, and through the inner chamber input ground of oil pipe 10, this moment, ball-and-seat was closed under the effect of pump.Flow into the down-hole by ground well head hydrothermal solution annular channel through between sleeve pipe and oil pipe when heat is washed, entered in the pump by runner b, other is entered through ball-and-seat (1,2), runner a, ring cavity C and runner d by runner e, and oil pipe returns ground on the pump.
Claims (1)
1, a kind of screw pump hot clean-up well device that is used on the oil field pumping well has screw pump and upper and lower joint (8,3), it is characterized in that:
(1), pump case (6) is housed between upper and lower joint (8,3), form toroidal cavity (C) between shell (6) and the stator case (5);
(2), lower contact (3) is connected to ball-and-seat (1,2), and the runner (a) between communication ball-and-seat (1,2) and the toroidal cavity is arranged, and the side opening runner (e) of linking up the inside and outside is arranged on single current valve seat (1);
Runner (d) between communication toroidal cavity (C) and the screw pump upper chamber is arranged on (3), top connection (8) wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217304 CN2199305Y (en) | 1994-07-13 | 1994-07-13 | Screw pump hot well washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217304 CN2199305Y (en) | 1994-07-13 | 1994-07-13 | Screw pump hot well washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199305Y true CN2199305Y (en) | 1995-05-31 |
Family
ID=33832788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94217304 Expired - Fee Related CN2199305Y (en) | 1994-07-13 | 1994-07-13 | Screw pump hot well washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199305Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335794C (en) * | 2003-04-07 | 2007-09-05 | 于海涛 | Clean hole screw rod pump against sand block |
| CN100419266C (en) * | 2005-09-08 | 2008-09-17 | 奈赤-单体泵股份有限公司 | Stator system |
-
1994
- 1994-07-13 CN CN 94217304 patent/CN2199305Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335794C (en) * | 2003-04-07 | 2007-09-05 | 于海涛 | Clean hole screw rod pump against sand block |
| CN100419266C (en) * | 2005-09-08 | 2008-09-17 | 奈赤-单体泵股份有限公司 | Stator system |
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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 |