CN201412097Y - Hydraulic expansion type hanger for expansion sieve tube - Google Patents
Hydraulic expansion type hanger for expansion sieve tube Download PDFInfo
- Publication number
- CN201412097Y CN201412097Y CN2009201579548U CN200920157954U CN201412097Y CN 201412097 Y CN201412097 Y CN 201412097Y CN 2009201579548 U CN2009201579548 U CN 2009201579548U CN 200920157954 U CN200920157954 U CN 200920157954U CN 201412097 Y CN201412097 Y CN 201412097Y
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- Prior art keywords
- hanger
- expansion
- sealing
- plug
- expandable screen
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- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic expansion type hanger for expansion sieve tube, which comprises a hanger body, rubber, a sealing button, a central fluorescent tube, an anti-drop plug, an expansion cone, a fixed short piece, a pressure transfer hole, a sealing choke plug. The hanger is characterized in that the expansion cone moves along the axis of the central tube up and down under the hydraulic pressure the expansion sheath plastically deforms along the radial direction, rubber is pressed between the outer wall of the expansion sheath and the inner wall of the outer sheath for the function of suspension sealing. The hanger has advantages that the hanger combines the function of a extension hanger and a tail pipe top packer; a movable choke plug is used for bottom sealing of thehanger during expansion, and the inner column is directly taken out so that the hanger needs not to be reversely buckled when it is released; the diameter of the hanger is by far larger than hangers in prior art, no drill plug is needed, thus oil well production and subsequent under-well operation are facilitated; sieve tubes or expansion sieve tubes can be hung, which are suitable for sand prevention and well completion; well completion period is shortened and cost thereof is save, thus the utility model has wide application prospect and great development potential.
Description
Technical field
The utility model is a kind of hydraulic buckling type hanger that is used for expandable screen.
Technical background
Development along with the screen sand control completion technique, more external in recent years well-known petroleum oil well completion companies such as Weatherford development and perfect a kind of novel tail pipe---expandable screen, concrete way is to adopt big latus rectum hanger to hang expandable screen to be lowered into the producing zone position, the inflatable screen casing but hanger seat extension back use reducing bloat tool expands, the screen casing after being inflated is close on the borehole wall.Theoretical research and production practices show, the ideal conditions of the effective sand control pipe of completion is more near the borehole wall in advance, and sand controlling result is unreasonable to be thought.Adopt the operating cost of expansion sand control screen obviously to lack than traditional sand control treatment expense, the cost of production of oil well reduces significantly.Compare with other sand control measures, the cost saving 30% of expandable screen technology energy improves production capacity 70%.Yet domestic existing some structural defectives of hanger product ubiquity have restricted the development of domestic expandable screen technology at present, are in particular in:
1, traditional hanger hangs the back poor sealing performance, very easily misses;
2, hanger easily causes seat extension in advance at the casing job circulation time;
3, the present easy serious accident that button takes place not open in back of hanging of hanger;
4, generally need after drilling liner cementing or the solid sleeve pipe superposition section with the logical horn mouth of undersized drilling tool;
5, the hitch of hanger, particularly slip system is unreasonable, easily causes to hang to lose efficacy;
6, the latus rectum of suspension back hanger is less than normal, but can not satisfy the requirement that is lowered to of reducing bloat tool.
Based on many defectives of traditional hanger, a kind of novel hanger product of urgent need exploitation satisfies the use expandable screen and carries out the requirement of expandable screen sand control completion.
Summary of the invention
Can not satisfy the instructions for use of expandable screen for solving traditional hanger, enlarge the scope of application of hanger, improve the functional performance of hanger, need a kind of novel hanger of research and development satisfy the needs at scene.The purpose of this utility model is to provide a kind of hydraulic buckling type hanger that is used for expandable screen to the scene.
The utility model is to realize like this.A kind of hydraulic buckling type hanger that is used for expandable screen by hanger body, rubber ring, sealing become button, center light pipe, prevent junk plug, expansion cone, fixedly pipe nipple, pressure transmission hole, seal plug are formed, it is characterized in that: the hanger body is the expansion sleeve of one section reducing, be processed with one section changeover portion that has the conical surface, be the bell mouth shape structure, the upper end is processed with rubber ring, and the bottom is processed with the left-hand thread screw thread; Expansion cone is up-narrow and down-wide cone through-hole structure, and expansion cone and hanger body are for closely cooperating, and expansion cone and center light pipe are for being sealed and matched; Fixedly pipe nipple upper end connects the center light pipe, and lower end and seal plug fixedly have pressure transmission hole on the pipe nipple for being threaded; Seal plug becomes button into being sealed and matched with sealing; Rubber ring is a loop configuration, closely is fixed on the external surface of hanger body; Sealing change button and hanger body are into being sealed and matched, and connected mode is that left-hand thread is threaded.
Advantage of the present utility model is:
1, expansion cone from expanding down, has guaranteed to have after hanger integral body is inflated big latus rectum along central tube, can satisfy the instructions for use that the later stage is lowered to expandable screen reducing instrument;
2, suspension material adopts high-performance rubber, has two-way efficiently supporting capacity;
The hanger lower seal adopts movable plug when 3, expanding, and need not back-off when giving up and can propose an extension instrument, has improved the success rate of giving up greatly, has eliminated the frequent serious accident that button takes place not open and cause of traditional hanger;
5, after seat is hung, only leave the hanger body in the well and the tail pipe that is draped, do not exist the later stage to bore operations such as plug;
6, this hanger can not be cemented the well, and can hang expandable screen or common screen casing, is applicable to the screen sand control completion.
Description of drawings
A kind of hydraulic buckling type hanger schematic diagram that is used for expandable screen of Fig. 1
1. hanger body 2. rubber ring 3. sealings change buttons 4. center light pipes 5. are prevented fixedly pipe nipple 8. circulation ports 9. seal plugs 10. outer layer sleeves of junk plug 6. expansion cone 7.
The specific embodiment
Now the utility model will be further described in conjunction with Figure of description.After drilling well finishes, the sealing of hydraulic buckling type hanger bottom becomes button 3 union tail strings, top is adopted heavy wall tubing or macaroni to link by change and is connect center light pipe 4 and accompany the hanger system and be lowered into designated depth, turn on pump is suppressed, pressure acts on the expansion cone 6 by the circulation port 8 on the fixing pipe nipple 7, after pressure reaches rated value, expansion cone 6 is done axially-movable from top to bottom along center light pipe 4, make suspension body body 1 produce permanent radial plastic deformation, thereby rubber ring 2 is compressed between hanger body 1 outer wall and outer layer sleeve 10 inwalls, plays the double action that hangs tail pipe and sealing.After expansion cone 6 expanded hanger body 1, the well head releasing pressure automatically hung operation and finishes, and tripped out center light pipe 4, anti-junk plug 5, fixedly pipe nipple 7, seal plug 9.
Claims (6)
1. hydraulic buckling type hanger that is used for expandable screen, by hanger body [1], rubber ring [2], sealing become button [3], center light pipe [4], anti-junk plug [5], expansion cone [6], fixedly pipe nipple [7], pressure transmission hole [8], seal plug [9] are formed, it is characterized in that: hanger body [1] is the expansion sleeve of one section reducing, be processed with one section changeover portion that has the conical surface, be the bell mouth shape structure, the upper end is processed with rubber ring [2], and the bottom is processed with the left-hand thread screw thread.
2. the hydraulic buckling type hanger that is used for expandable screen as claimed in claim 1, it is characterized in that: expansion cone [6] is up-narrow and down-wide cone through-hole structure, expansion cone [6] and hanger body [1] are for closely cooperating, and expansion cone [6] and center light pipe [4] are for being sealed and matched.
3. the hydraulic buckling type hanger that is used for expandable screen as claimed in claim 1 is characterized in that: fixedly pipe nipple [7] upper end connects center light pipe [4], and lower end and seal plug [9] fixedly have pressure transmission hole [8] on the pipe nipple [7] for being threaded.
4. the hydraulic buckling type hanger that is used for expandable screen as claimed in claim 1 is characterized in that: seal plug [9] becomes button [3] into being sealed and matched with sealing.
5. the hydraulic buckling type hanger that is used for expandable screen as claimed in claim 1 is characterized in that: described rubber ring [2] is a loop configuration, closely is fixed on the external surface of hanger body [1].
6. the hydraulic buckling type hanger that is used for expandable screen as claimed in claim 1 is characterized in that: sealing change button [3] and hanger body [1] are into being sealed and matched, and connected mode is that left-hand thread is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201579548U CN201412097Y (en) | 2009-06-05 | 2009-06-05 | Hydraulic expansion type hanger for expansion sieve tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201579548U CN201412097Y (en) | 2009-06-05 | 2009-06-05 | Hydraulic expansion type hanger for expansion sieve tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412097Y true CN201412097Y (en) | 2010-02-24 |
Family
ID=41713983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201579548U Expired - Lifetime CN201412097Y (en) | 2009-06-05 | 2009-06-05 | Hydraulic expansion type hanger for expansion sieve tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412097Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906945A (en) * | 2009-06-04 | 2010-12-08 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion hanger for expandable screen pipes |
| CN102979470A (en) * | 2012-12-07 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Uncemented expansion tail pipe hanger |
| CN106567687A (en) * | 2015-10-12 | 2017-04-19 | 中石化石油工程技术服务有限公司 | Top-down expandable casing expansion method for deep well |
| CN107013180A (en) * | 2017-06-02 | 2017-08-04 | 中国石油天然气集团公司 | The solvable expansion plugging device of pit shaft |
| CN117248844A (en) * | 2023-11-06 | 2023-12-19 | 德州金玉石油机械科技有限公司 | Oil gas well tail pipe hanger |
-
2009
- 2009-06-05 CN CN2009201579548U patent/CN201412097Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906945A (en) * | 2009-06-04 | 2010-12-08 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion hanger for expandable screen pipes |
| CN102979470A (en) * | 2012-12-07 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Uncemented expansion tail pipe hanger |
| CN102979470B (en) * | 2012-12-07 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Non-well cementation formula expandable liner hanger |
| CN106567687A (en) * | 2015-10-12 | 2017-04-19 | 中石化石油工程技术服务有限公司 | Top-down expandable casing expansion method for deep well |
| CN107013180A (en) * | 2017-06-02 | 2017-08-04 | 中国石油天然气集团公司 | The solvable expansion plugging device of pit shaft |
| CN117248844A (en) * | 2023-11-06 | 2023-12-19 | 德州金玉石油机械科技有限公司 | Oil gas well tail pipe hanger |
| CN117248844B (en) * | 2023-11-06 | 2024-03-19 | 德州金玉石油机械科技有限公司 | Oil gas well tail pipe hanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM + CHEMICAL VICTORY OIL ENGINEERING Effective date: 20150625 Owner name: SINOPEC OILFIELD SERVICE CORPORATION Free format text: FORMER OWNER: WELL-DRILLING TECHNOLOGY INST., SHENGLI PETROLEUM ADMINISTRATION, SINOPEC Effective date: 20150625 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150625 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 257017 No. 236, North Road, Dongying District, Shandong, Dongying Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |
|
| CX01 | Expiry of patent term |