CN203867521U - Oil pipe water-drainage device for oil-water well - Google Patents
Oil pipe water-drainage device for oil-water well Download PDFInfo
- Publication number
- CN203867521U CN203867521U CN201420246187.9U CN201420246187U CN203867521U CN 203867521 U CN203867521 U CN 203867521U CN 201420246187 U CN201420246187 U CN 201420246187U CN 203867521 U CN203867521 U CN 203867521U
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- Prior art keywords
- water
- water draw
- inner central
- oil
- oil pipe
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Abstract
The utility model discloses an oil pipe water-drainage device for an oil-water well. The oil pipe water-drainage device comprises a water-drainage device body and an inner central pipe arranged at the lower end of the water-drainage device body, wherein a transverse limiting bulging step is arranged below an oil pipe connecting inner thread; a sliding sleeve is arranged in the water-drainage device body; a transverse positioning hole and a pressure-relief hole are formed in the water-drainage device body; the sliding sleeve is fixed in the water-drainage device body through a constant-pressure pin; a threaded-connection piston baffle is arranged between a lower joint and the inner central pipe; the lower joint is connected with the inner central pipe through the threaded-connection piston baffle; a buffer spring is arranged on the outer side of the inner central pipe; a piston is arranged at the bottom of the buffer spring; and a spring baffle is arranged at the top of the buffer spring. The oil pipe water-drainage device is simple in structure, high in usage reliability and good in applicability.
Description
Technical field
The utility model belongs to oil-water well processing technology field, is specifically related to a kind of oil pipe water draw-off for oil-water well.
Background technology
In oil-water well operation process, especially card envelope seperated layer water injection well operations is carried and in Tubing During Running, often can be run into oil pipe and sluice smooth and put forward the phenomenon of jet pipe, or need to verify the operation requirement of oil pipe sealing, spray is carried oil pipe and is easily caused job site to pollute, increase the difficulty of site operation, the intensity that has increased construction, also can extend the engineering time simultaneously; Mainly apply at present two kinds of caber formula bleeder and rotary bleeder and assist oil pipe to sluice, caber formula bleeder only can be used for oil pipe and test pipe process, and narrow application range cannot realize the requirement of the throwing different-diameter ball in separate water injection well separate layer acid treatment process; Rotary bleeder need be carried out bottom tubing string and be fixed, open by rotation tubing string, in use procedure, be subject to pit shaft restriction large, there is friction in early stage to open risk, the present situation of destructible downhole packer, for field assay situation after the proposition in later stage is made troubles, and normally water filling need to be descended injection well downhole flow regulator, causes the problem that lower well tool is many; Applicability is affected to a certain extent, is difficult to meet the demand in market.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, use the reliable and strong oil pipe water draw-off for oil-water well of applicability.
The technical scheme that realizes the utility model object is: a kind of oil pipe water draw-off for oil-water well, comprise water draw-off body and the inner central tube that is arranged on described water draw-off body lower end, the top exterior walls of described inner central tube is provided with external screw thread, the bottom interior wall of described water draw-off body is provided with internal thread, the bottom thread of described water draw-off body is connected to the top outer of described inner central tube, be provided with oil pipe at the top of described water draw-off body and connect internal thread, below described oil pipe connection internal thread, be provided with the protruding rank of cross spacing, the protruding rank of described cross spacing are arranged on the inwall of described water draw-off body, in described water draw-off body, be provided with sliding sleeve, on described water draw-off body, be provided with located lateral hole and relief hole, described located lateral hole is arranged on the below on the protruding rank of described cross spacing, in described located lateral hole, be provided with level pressure pin, described sliding sleeve is fixed in described water draw-off body by described level pressure pin and the top of described sliding sleeve is connected to the lower end on the protruding rank of described cross spacing, described relief hole is arranged on the below in described located lateral hole and described relief hole and is arranged on the center of institute's sliding sleeve, bottom at described inner central tube is provided with lower contact, between described lower contact and described inner central tube, be provided with the piston baffle that is threaded, described lower contact is threaded connection piston baffle with described inner central tube and is connected, outside at described inner central tube is provided with buffer spring, bottom at described buffer spring is provided with piston, described in being connected to, described piston activity is threaded on piston baffle, top at described buffer spring is provided with spring stop, the top of described buffer spring is connected on the bottom of described spring stop, described spring stop screw thread is fixed on the outside, bottom of described water draw-off body.
On described inner central tube, be provided with water filling through hole, described water filling through hole be arranged on described piston with described in the piston baffle junction that is threaded.
The inwall of described sliding sleeve is that upper end diameter is greater than lower end diameter and is obliquely installed.
Between described water draw-off body and the two ends of described sliding sleeve, be equipped with O-ring seal, described relief hole is arranged between two O-ring seals.
Outside at described buffer spring is also provided with screening dust hood, and the screw top of described screening dust hood is fixed on the outside of described spring stop and the bottom interior wall of described screening dust hood is connected on the outer wall of described piston.
The utlity model has positive effect: of the present utility model simple in structure, its water draw-off body is connected by level pressure pin with inner sliding sleeve, in use, by ground pitching, the level pressure pin that sliding sleeve is connected with water draw-off body is disconnected, make sliding sleeve down sliding, and then relief hole is exposed from the top of sliding sleeve, and then complete sluicing operation, in the time that needs sluice, suppress by ground pitching, destroy sliding sleeve, spill pressure release duct, realize tubing string pressure release draining, dependability is strong, and applicability is good; And on inner central tube, be provided with water filling through hole, not affecting under the condition of construction in early stage, can realize normal flooding production, water filling is convenient and swift, can realize water filling and sluicing function, and applied widely, practicality is good.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
(embodiment 1)
Fig. 1 has shown a kind of detailed description of the invention of the present utility model, and wherein Fig. 1 is structural representation of the present utility model.See Fig. 1, a kind of oil pipe water draw-off for oil-water well, comprise water draw-off body 1 and the inner central tube 2 that is arranged on described water draw-off body 1 lower end, the top exterior walls of described inner central tube 2 is provided with external screw thread 3, the bottom interior wall of described water draw-off body 1 is provided with internal thread 4, the bottom thread of described water draw-off body 1 is connected to the top outer of described inner central tube 2, be provided with oil pipe at the top of described water draw-off body 1 and connect internal thread 5, below described oil pipe connection internal thread 5, be provided with the protruding rank 6 of cross spacing, the protruding rank 6 of described cross spacing are arranged on the inwall of described water draw-off body 1, in described water draw-off body 1, be provided with sliding sleeve 7, on described water draw-off body 1, be provided with located lateral hole 8 and relief hole 9, described located lateral hole 8 is arranged on the below on the protruding rank 6 of described cross spacing, in described located lateral hole 8, be provided with level pressure pin 10, described sliding sleeve 7 is fixed in described water draw-off body 1 by described level pressure pin 10 and the top of described sliding sleeve 7 is connected to the lower end on the protruding rank 6 of described cross spacing, described relief hole 9 is arranged on the below in described located lateral hole 8 and described relief hole 9 and is arranged on the center of institute's sliding sleeve 7, be provided with lower contact 11 in the bottom of described inner central tube 2, between described lower contact 11 and described inner central tube 2, be provided with the piston baffle 12 that is threaded, described lower contact 11 is threaded connection piston baffle 12 with described inner central tube 2 and is connected, be provided with buffer spring 13 in the outside of described inner central tube 2, be provided with piston 14 in the bottom of described buffer spring 13, described in being connected to, described piston 14 activities are threaded on piston baffle 12, be provided with spring stop 15 at the top of described buffer spring 13, the top of described buffer spring 13 is connected on the bottom of described spring stop 15, described spring stop 15 screw threads are fixed on the outside, bottom of described water draw-off body 1.
On described inner central tube 2, be provided with water filling through hole 16, described water filling through hole 16 be arranged on described piston 14 with described in piston baffle 12 junctions that are threaded.
The inwall of described sliding sleeve 7 is that upper end diameter is greater than lower end diameter and is obliquely installed.
Between described water draw-off body 1 and the two ends of described sliding sleeve 7, be equipped with O-ring seal 17, described relief hole 9 is arranged between two O-ring seals 17.
Also be provided with in the outside of described buffer spring 13 and hide dust hood 18, the screw top of described screening dust hood 18 is fixed on the outside of described spring stop 15 and the bottom interior wall of described screening dust hood 18 is connected on the outer wall of described piston 14.
Of the present utility model simple in structure, its water draw-off body is connected by level pressure pin with inner sliding sleeve, in use, by ground pitching, the level pressure pin that sliding sleeve is connected with water draw-off body is disconnected, make sliding sleeve down sliding, and then relief hole is exposed from the top of sliding sleeve, and then complete sluicing operation, in the time that needs sluice, suppress by ground pitching, destroy sliding sleeve, spill pressure release duct, realize tubing string pressure release draining, dependability is strong, and applicability is good; And on inner central tube, be provided with water filling through hole, not affecting under the condition of construction in early stage, can realize normal flooding production, water filling is convenient and swift, can realize water filling and sluicing function, and applied widely, practicality is good.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (5)
1. the oil pipe water draw-off for oil-water well, comprise water draw-off body and the inner central tube that is arranged on described water draw-off body lower end, the top exterior walls of described inner central tube is provided with external screw thread, the bottom interior wall of described water draw-off body is provided with internal thread, the bottom thread of described water draw-off body is connected to the top outer of described inner central tube, it is characterized in that: be provided with oil pipe at the top of described water draw-off body and connect internal thread, below described oil pipe connection internal thread, be provided with the protruding rank of cross spacing, the protruding rank of described cross spacing are arranged on the inwall of described water draw-off body, in described water draw-off body, be provided with sliding sleeve, on described water draw-off body, be provided with located lateral hole and relief hole, described located lateral hole is arranged on the below on the protruding rank of described cross spacing, in described located lateral hole, be provided with level pressure pin, described sliding sleeve is fixed in described water draw-off body by described level pressure pin and the top of described sliding sleeve is connected to the lower end on the protruding rank of described cross spacing, described relief hole is arranged on the below in described located lateral hole and described relief hole and is arranged on the center of institute's sliding sleeve, bottom at described inner central tube is provided with lower contact, between described lower contact and described inner central tube, be provided with the piston baffle that is threaded, described lower contact is threaded connection piston baffle with described inner central tube and is connected, outside at described inner central tube is provided with buffer spring, bottom at described buffer spring is provided with piston, described in being connected to, described piston activity is threaded on piston baffle, top at described buffer spring is provided with spring stop, the top of described buffer spring is connected on the bottom of described spring stop, described spring stop screw thread is fixed on the outside, bottom of described water draw-off body.
2. the oil pipe water draw-off for oil-water well according to claim 1, is characterized in that: on described inner central tube, be provided with water filling through hole, described water filling through hole be arranged on described piston with described in the piston baffle junction that is threaded.
3. the oil pipe water draw-off for oil-water well according to claim 2, is characterized in that: the inwall of described sliding sleeve is that upper end diameter is greater than lower end diameter and is obliquely installed.
4. the oil pipe water draw-off for oil-water well according to claim 3, is characterized in that: between described water draw-off body and the two ends of described sliding sleeve, be equipped with O-ring seal, described relief hole is arranged between two O-ring seals.
5. the oil pipe water draw-off for oil-water well according to claim 4, it is characterized in that: the outside at described buffer spring is also provided with screening dust hood, the screw top of described screening dust hood is fixed on the outside of described spring stop and the bottom interior wall of described screening dust hood is connected on the outer wall of described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246187.9U CN203867521U (en) | 2014-05-14 | 2014-05-14 | Oil pipe water-drainage device for oil-water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246187.9U CN203867521U (en) | 2014-05-14 | 2014-05-14 | Oil pipe water-drainage device for oil-water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867521U true CN203867521U (en) | 2014-10-08 |
Family
ID=51648491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420246187.9U Expired - Fee Related CN203867521U (en) | 2014-05-14 | 2014-05-14 | Oil pipe water-drainage device for oil-water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591648A (en) * | 2023-07-17 | 2023-08-15 | 大庆市璞庆钻采设备制造有限公司 | Water injection flow-adjustable water distributor |
-
2014
- 2014-05-14 CN CN201420246187.9U patent/CN203867521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591648A (en) * | 2023-07-17 | 2023-08-15 | 大庆市璞庆钻采设备制造有限公司 | Water injection flow-adjustable water distributor |
| CN116591648B (en) * | 2023-07-17 | 2023-09-29 | 大庆市璞庆钻采设备制造有限公司 | Water injection flow-adjustable water distributor |
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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: 20141008 Termination date: 20150514 |
|
| EXPY | Termination of patent right or utility model |