CN202249973U - Pipe column for deep pumping of screw pump well - Google Patents
Pipe column for deep pumping of screw pump well Download PDFInfo
- Publication number
- CN202249973U CN202249973U CN2011203363583U CN201120336358U CN202249973U CN 202249973 U CN202249973 U CN 202249973U CN 2011203363583 U CN2011203363583 U CN 2011203363583U CN 201120336358 U CN201120336358 U CN 201120336358U CN 202249973 U CN202249973 U CN 202249973U
- Authority
- CN
- China
- Prior art keywords
- screw pump
- oil
- sucker rod
- string
- rod
- 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
- 238000005086 pumping Methods 0.000 title abstract 4
- 239000003129 oil well Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000007689 inspection Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 27
- 238000011084 recovery Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The deep pumping pipe column of screw pump well is used in deep pumping oil production of screw pump in oil field. The oil pumping rod string is arranged in the underground oil pipe string; the structure of the underground tubing string is as follows: the screw pump stator is sequentially connected with a bell mouth, a tail pipe and an oil pipe anchor screw pump stator from bottom to top, and the upper part of the screw pump stator is connected with a flat oil pipe, a buckle-changing joint and a thickened oil pipe; the structure of the sucker rod string is as follows: the top-down connection relationship is: the lower end of the polish rod is connected with a sucker rod anti-reverse device, a sucker rod short joint, a buckle-changing short joint and a screw pump rotor, and the screw pump rotor is arranged in a screw pump stator. The effect is as follows: the pump can solve the problem of thick oil within 2300m of a pump hanger, improve the pump efficiency, prolong the service life of a screw pump, avoid frequent pump inspection and ensure the production and operation of an oil field.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and the tubing string that particularly a kind of screw pump well depth is taken out solves the problem that viscous crude screw pump well depth is taken out.
Background technology
At present, along with the prolongation of heavy crude reservoir development time, liquid level drops to below 2000 meters, batters down because of the feed flow deficiency often causes the screw pump stator packing element, frequently examines pump, has a strong impact on the field produces operation.
Chinese patent CN2625574 discloses the dark extraction oil of a kind of screw pump process pipe string, on the screw pump oil production tubing string, increases by a cover relay screw pump; Relay stator, relay rotor are formed the relay screw pump; Oil recovery stator, oil recovery rotor are formed oil-extracting screw pump, and oil pipe, oil recovery stator connect successively between last oil pipe, relay stator, pump, and coupling bar, oil recovery rotor connect successively between last coupling bar, relay rotor, pump; The relay rotor is in the relay stator, and the oil recovery rotor is in the oil recovery stator.During production, surface drive drive to be gone up coupling bar between coupling bar, relay rotor, pump, the rotation of oil recovery rotor, make in the well crude oil through oil pipe, relay screw pump between oil-extracting screw pump, pump, go up oil pipe after extraction to ground.During production under the relay screw pump pressure low, the corresponding reduction of oil-extracting screw pump pressure, therefore, the operating pressure of two cover screw pumps is low, pump efficiency is high, long service life, the oil well production cycle is long, the decline of oil well production cost.
Though can solve and take out problem deeply, underground equipment is complicated, is easy to generate the down-hole fault, and is inapplicable to heavy crude well.
The utility model content
The purpose of the utility model is: the tubing string that provides a kind of screw pump well depth to take out, and the crude oil in the ability extraction thickened oil deep well improves pump efficiency, prolongs the application life of screw pump, avoids frequently examining pump, and the assurance field produces is moved.
The technical scheme that the utility model adopts is: the tubing string that the screw pump well depth is taken out, comprise downhole oil tubing string and rod string, and rod string is in the downhole oil tubing string; It is characterized in that: the structure of downhole oil tubing string is: be connected with horn mouth, tail pipe, tubing anchor and screw pump stator from bottom to top in turn, be connected with plain end oil well pipe on the top of screw pump stator; The upper end of plain end oil well pipe connects change snapping head; The upper end that becomes the snapping head connects heavy wall tubing, and heavy wall tubing is until well head;
The structure of rod string is: annexation is from top to bottom: the lower end at polished rod connects the sucker rod anti kickback attachment; Lower end at the sucker rod anti kickback attachment connects sucker rod; Lower end at sucker rod connects sucker rod substitute; The lower end of sucker rod substitute connects to become detains short circuit head, becomes the lower end connecting screw rod pump rotor of button short circuit.Screw pump rotor is in screw pump stator.
Screw rod pump size in the downhole oil tubing string is 60TP2600, and your petroleum technology (Beijing) Co., Ltd provides by Snooker; The specification of tubing anchor is Y221-114, and the mechanical Co., Ltd of the logical stone transporting oil of Renqiu City North China, Hebei province oil produces.
Sucker rod in the rod string is the antitorque bar of HY level; The sucker rod anti kickback attachment is provided by east, Shanghai oil equipment Co., Ltd.
The beneficial effect of the utility model: the tubing string that the utility model screw pump well depth is taken out, can solve pump and hang 2300m with interior viscous crude, pump efficiency is improved, prolong the application life of screw pump, avoid frequently examining pump, guarantee the field produces operation.
Description of drawings
Fig. 1 is the tubular column structure generalized section that the utility model screw pump well depth is taken out.
Among the figure, 1. horn mouth, 2. tail pipe, 3. tubing anchor, 4. screw pump stator, 5. screw pump rotor, 6. plain end oil well pipe 7. becomes the snapping head, 8. becomes the button short circuit head, 9. sucker rod substitute, 10. sucker rod, 11. sucker rod anti kickback attachments, 12. polished rods, 13. heavy wall tubings.
The specific embodiment
Embodiment 1: the tubing string of taking out with a screw pump well depth is an example, and the utility model is done further explain.
Pool 70-20 well, ground driving screw pump.Do not adopt before the tubing string that the utility model screw pump well depth takes out, it is not enough to produce after 15 days oil well liquid-supplying, the wearing and tearing of screw pump stator packing element.After using the tubing string that the utility model screw pump well depth takes out instead, with screw pump stator 4 down to 2300m, day production fluid daily output liquid 6.2 sides, day produce oil 3.7t, moisture 40.3%.Liquid level remains on 1600～1800m, has guaranteed the oil well ordinary production.
Consult Fig. 1.The tubing string that the utility model screw pump well depth is taken out comprises downhole oil tubing string and rod string, and rod string is in the downhole oil tubing string.
The structure of downhole oil tubing string is: be connected with horn mouth 1, tail pipe 2, tubing anchor and screw pump stator 4 from bottom to top in turn, be connected with the plain end oil well pipe 6 of external diameter 89mm on the top of screw pump stator 4; The upper end of the plain end oil well pipe 6 of external diameter 89mm connects change snapping head 7; The upper end that becomes snapping head 7 connects the heavy wall tubing 13 that external diameter is 89mm, and external diameter is that the heavy wall tubing 13 of 89mm is until well head;
The structure of rod string is: annexation is from top to bottom: diameter is a 28mm polished rod 12, and diameter is that the bottom connection external diameter of 28mm polished rod 12 is the heart sucker rod anti kickback attachment 11 of 42mm, and external diameter is that the length of the heart sucker rod anti kickback attachment 11 of 42mm is 10m; Be that to connect external diameter be the sucker rod 10 of 25mm the lower end of the heart sucker rod anti kickback attachment 11 of 42mm at external diameter, external diameter is that the length of the sucker rod 10 of 25mm is 2290m; Be that to connect external diameter be the sucker rod substitute 9 of 25mm the lower end of the sucker rod 10 of 25mm at external diameter, external diameter is that the length of the sucker rod substitute 9 of 25mm is 10m; At external diameter is the lower end connection change button short circuit head 8 of the sucker rod substitute 9 of 25mm, and the lower end connection model that becomes button short circuit 8 is the screw pump rotor 5 of 60TP2600.Model is that the screw pump rotor 5 of 60TP2600 is in screw pump stator 4.
Becoming snapping head 7 is that the lower end external diameter is the change snapping head of the heavy wall tubing of 89mm into external diameter on the plain end oil well pipe of 89mm; Become button short circuit head 8 and be an end into the flat button sucker rod other end of 25mm for becoming the change button short circuit head of tapered thread.
Claims (1)
1. the tubing string that the screw pump well depth is taken out comprises downhole oil tubing string and rod string, and rod string is in the downhole oil tubing string; It is characterized in that: the structure of downhole oil tubing string is: be connected with horn mouth (1), tail pipe (2), tubing anchor (3) and screw pump stator (4) from bottom to top in turn, be connected with plain end oil well pipe (6) on the top of screw pump stator (4); The upper end of plain end oil well pipe (6) connects change snapping head (7); The upper end that becomes snapping head (7) connects heavy wall tubing (13), and heavy wall tubing (13) is until well head;
The structure of rod string is: annexation is from top to bottom: the lower end at polished rod (12) connects sucker rod anti kickback attachment (11); Lower end at sucker rod anti kickback attachment (11) connects sucker rod (10); Lower end at sucker rod (10) connects sucker rod substitute (9); The lower end of sucker rod substitute (9) connects to become detains short circuit head (8), becomes the lower end connecting screw rod pump rotor (5) of button short circuit (8), and screw pump rotor (5) is in screw pump stator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203363583U CN202249973U (en) | 2011-09-08 | 2011-09-08 | Pipe column for deep pumping of screw pump well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203363583U CN202249973U (en) | 2011-09-08 | 2011-09-08 | Pipe column for deep pumping of screw pump well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249973U true CN202249973U (en) | 2012-05-30 |
Family
ID=46111232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203363583U Expired - Fee Related CN202249973U (en) | 2011-09-08 | 2011-09-08 | Pipe column for deep pumping of screw pump well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653129A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Method for washing screw pump oil well |
| CN104343422B (en) * | 2013-08-02 | 2017-02-08 | 中国石油天然气股份有限公司 | Method for improving deep pumping efficiency of oil well |
-
2011
- 2011-09-08 CN CN2011203363583U patent/CN202249973U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343422B (en) * | 2013-08-02 | 2017-02-08 | 中国石油天然气股份有限公司 | Method for improving deep pumping efficiency of oil well |
| CN104653129A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Method for washing screw pump oil well |
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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: 20120530 Termination date: 20200908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |