CN2287206Y - Sealing and separating device for hot production - Google Patents
Sealing and separating device for hot production Download PDFInfo
- Publication number
- CN2287206Y CN2287206Y CN 97212076 CN97212076U CN2287206Y CN 2287206 Y CN2287206 Y CN 2287206Y CN 97212076 CN97212076 CN 97212076 CN 97212076 U CN97212076 U CN 97212076U CN 2287206 Y CN2287206 Y CN 2287206Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- utility
- central tube
- memorial alloy
- model
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000956 alloy Substances 0.000 claims description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 17
- 238000011084 recovery Methods 0.000 abstract 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Abstract
The utility model relates to a thermal recovery packer which belongs to a matched tool for the thermal recovery of thick oil. A novel device is designed for aiming at the problems of poor sealing performance, difficult unsealing, etc. existing in packers which are required for thick oil recovery. The utility model is composed of a central tube, a front end press cap, a back end press cap, a sealing sleeve, etc., and is characterized in that a memory alloy cylinder is corrugated, and both the front and the back ends are fixed with fastening tubes. The utility model can be used for thick oil thermal recovery in oil exploitation industry.
Description
The utility model thermal packer belongs to a kind of heavy crude heat extraction kit in the petroleum machinery field.
Viscous crude must inject vapours to desiring producing horizon in thermal process, for preventing to return on the steam leakage, the configuration thermal packer is a kind of advanced method.Present stage, the packer sealing produced of the chemicals that adopts was better, but existed Yi Kajing, only can expendable problem, and adopt the packer of various types of thermometal sheet production to exist problems such as sealing is relatively poor.
The purpose of the utility model thermal packer is: at the drawback of above-mentioned existence, designed a kind of novel packer, its expander adopts corrugated memorial alloy pipe to make, and the expansion area is increased considerably, and has improved sealing performance effectively.
The utility model thermal packer is to be made of parts such as central tube (1), front end pressure cap (2), rear end pressure cap (9) and sealing shrouds (6), it is characterized in that:
A) barrel of memorial alloy tube (4) is corrugated, is installed on the retainer ring (7), and two ends is tightly fixing by tightening up pipe (5), and the outside of memorial alloy tube (4) is sealing shroud (6); B) front and back ends pressure cap (2) and (9) compress the two ends of sealing shroud (6) respectively, and fixing with central tube (1) by screw thread mouth and sealing ring (8), between the retainer ring (7) that central tube (1) is installed, are provided with bushing pipe (3).
The good effect of the utility model thermal packer is: expander adopts the iron-based memorial alloy, Heat stability is good, and cost is low; The distinctive big external surface of undulatory memorial alloy tube plays one's part to the full the hole enlargement function of the memorial alloy tube of temperature distortion, cause sealing shroud (6) with and the sealing effectiveness of wall better.
Description of drawings:
Fig. 1, the main pseudosection of the utility model thermal packer, wherein: (1) central tube, (2) front end pressure cap, (3) bushing pipe, (4) memorial alloy tube, (5) tighten up pipe, (8) sealing shroud, (7) retainer ring, (8) sealing ring, (9) rear end pressure cap;
Fig. 2, the transverse sectional view of the memorial alloy tube (4) of the utility model thermal packer,
In conjunction with the accompanying drawings, to the structure and the operation operating condition of the utility model thermal packer, do following specifying:
At first, adopt the thermal structure steel to make central tube (1), its length L=400mm, internal diameter Φ
In=60mm, external diameter Φ
Outward=88mm, front end is provided with pin thread, and the rear end is provided with negative thread; The internal thread of front pressing cap (2) and rear pressing cap is M88 * 2 * 30, maximum outside diameter Φ=152mm; Retainer ring (7) internal diameter is 88mm, external diameter 136mm; Bushing pipe (3) internal diameter 130mm, external diameter 136mm; The external diameter 140mm of memorial alloy bellows (4) crest, trough external diameter 130mm, similar memorial alloy tube is two-layer altogether; The long 240mm of sealing shroud (6) that adopts poly fourfluoroplastics to make, internal diameter 140mm, external diameter 152mm; Then, retainer ring (7) is installed on the central tube (1), installs bushing pipe (3) between the retainer ring (7), cover is loaded onto the memorial alloy bellows (4) that parallels with the central tube axis on bushing pipe again, and bellows (4) is with tightening up tightly fixedly rear and front end of pipe; And then cover upper sleeve gasket (6); At last, forward and backward pressure cap centring pipe (1) is inserted in two ends, and after compressing sealing ring (8) and sealing shroud (6), is tightened in central tube (1) by screw thread mouth, finished product promptly assembles and finishes.
During the heavy crude heat extraction operation, thermal packer is given the depthkeeping degree with the well casing G.I.H, and inject hot high pressure steam, when vapours is passed through thermal packer, the temperature distortion of memorial alloy bellows, and make sealing shroud (6) expansion hole enlargement, and because of the memorial alloy tube is a corrugated, its distinctive big external surface, make the abundant hole enlargement of sealing shroud, closely contact with the borehole wall to the external surface that makes thermal packer, reach packer and more effectively isolate sealing, the effect of heavy crude producing up and down.When hot high pressure steam reaches more than 200 ℃, by the vapours that central tube passes through, make the temperature distortion of memorial alloy bellows, when stopping to import vapours, the memorial alloy bellows is met cold, no longer keep swelling state, sealing shroud attenuates, simultaneously, the shaped form design of forward and backward pressure cap, make thermal packer when carrying well casing, be easy to, solved the problem of the easy Ka Jing of thermal packer preferably by deblocking.Try out on Panjin oil field and other places, all obtained promising result.In heavy crude heat extraction, have wide practical use.
Claims (1)
1, the utility model thermal packer is to be made of parts such as central tube (1), front end pressure cap (2), rear end pressure cap (9) and sealing shrouds (6), it is characterized in that:
A) barrel of memorial alloy tube (4) is corrugated, is installed on the retainer ring (7), and two ends are provided with and tighten up pipe (5), and the outside of memorial alloy tube (4) is equipped with sealing shroud (6),
B) front and back ends pressure cap (2) and (9) compress the two ends of sealing shroud (6) respectively, and fixing with central tube (1) by screw-socket and sealing ring (8), and central tube (1) is equipped with retainer ring (7), is provided with bushing pipe (3) between the ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212076 CN2287206Y (en) | 1997-03-08 | 1997-03-08 | Sealing and separating device for hot production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212076 CN2287206Y (en) | 1997-03-08 | 1997-03-08 | Sealing and separating device for hot production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2287206Y true CN2287206Y (en) | 1998-08-05 |
Family
ID=33930353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97212076 Expired - Fee Related CN2287206Y (en) | 1997-03-08 | 1997-03-08 | Sealing and separating device for hot production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2287206Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555778B (en) * | 2009-05-18 | 2013-08-07 | 中国石油辽河油田钻采工艺研究院 | External packer of high temperature pipe |
| CN109229850A (en) * | 2018-08-24 | 2019-01-18 | 荣广磊 | Nanometer new material anti-leak safety protective storage device |
-
1997
- 1997-03-08 CN CN 97212076 patent/CN2287206Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555778B (en) * | 2009-05-18 | 2013-08-07 | 中国石油辽河油田钻采工艺研究院 | External packer of high temperature pipe |
| CN109229850A (en) * | 2018-08-24 | 2019-01-18 | 荣广磊 | Nanometer new material anti-leak safety protective storage device |
| CN109229850B (en) * | 2018-08-24 | 2019-12-06 | 浙江龙腾电工器材有限公司 | Nanometer new material prevents leaking safety protection type storage device |
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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 |