CN101906945A - Hydraulic expansion hanger for expandable screen pipes - Google Patents
Hydraulic expansion hanger for expandable screen pipes Download PDFInfo
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- CN101906945A CN101906945A CN2009101435743A CN200910143574A CN101906945A CN 101906945 A CN101906945 A CN 101906945A CN 2009101435743 A CN2009101435743 A CN 2009101435743A CN 200910143574 A CN200910143574 A CN 200910143574A CN 101906945 A CN101906945 A CN 101906945A
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- hanger
- expandable screen
- expansion
- pipe
- sealing
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Abstract
The invention discloses a hydraulic expansion hanger for expandable screen pipes, which consists of a hanger body, rubber, a sealing diameter-variable buckle, a central light pipe, an object-falling prevention plug, an expansion cone, a fixed pup joint, a pressure transfer hole and a sealing end cap. The hydraulic expansion hanger is characterized in that: the expansion cone axially moves from top to bottom along the central pipe under hydraulic action to radially plastically deform an expansion sleeve and compress the rubber between the outer wall of the expansion sleeve and the inner wall of an outer-layer sleeve so as to realize the function of hanging sealing. The invention has the advantages that: the hydraulic expansion hanger integrates the functions of a tail pipe hanger and a tail pipe upper packer; during expansion, the lower part of the hanger can be sealed by the movable end cap, and when released, the expandable screen pipe is directly pulled out of an inner pipe string without back-off; after the expandable screen pipe is released, plug drilling is not needed, and the drift diameter of the hanger is much greater than that of the conventional hanger, so well production and post-borehole operation are benefited; and the hanger can hang screen pipes or the expandable screen pipes, is applied to the sand control completion of the screen pipes, shortens a completion period, saves completion cost and has vast market application prospect and development potential.
Description
Technical field
The present invention 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 objective of the invention is provides a kind of hydraulic buckling type hanger that is used for expandable screen to the scene.
The present invention realizes 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.
The invention has the advantages that:
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 invention 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 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 [6] 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 |
|---|---|---|---|
| CN2009101435743A CN101906945A (en) | 2009-06-04 | 2009-06-04 | Hydraulic expansion hanger for expandable screen pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101435743A CN101906945A (en) | 2009-06-04 | 2009-06-04 | Hydraulic expansion hanger for expandable screen pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101906945A true CN101906945A (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101435743A Pending CN101906945A (en) | 2009-06-04 | 2009-06-04 | Hydraulic expansion hanger for expandable screen pipes |
Country Status (1)
| Country | Link |
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| CN (1) | CN101906945A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182417A (en) * | 2011-04-15 | 2011-09-14 | 中国石油天然气股份有限公司 | Fishing and expanding integrated expansion pipe patching tool |
| CN102889063A (en) * | 2012-09-05 | 2013-01-23 | 上海管力卜石油设备有限公司 | Suspension device for expansion pipe used in thermal recovery horizontal well and using method for suspension device |
| CN102966323A (en) * | 2012-11-12 | 2013-03-13 | 中国石油天然气股份有限公司 | Combined reducing expansion cone of expansion pipe |
| CN103089180A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Casing sidetracked well completion method using expansion screen tube |
| CN103089182A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Well completion method for tail pipe combining expansion sleeve pipe and expansion sieve pipe |
| CN103089193A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Tail pipe completion method by plugging expandable casing on top of screen pipe |
| 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 |
| CN107524428A (en) * | 2017-08-11 | 2017-12-29 | 中国石油集团渤海钻探工程有限公司 | A kind of swollen cone of hydraulic thrust of coiled tubing conveying expandable screen |
| CN108533200A (en) * | 2018-06-23 | 2018-09-14 | 陕西久鑫石油工程技术有限公司 | A kind of expansion tube is outstanding to insert fix tool and restorative procedure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575240B1 (en) * | 1998-12-07 | 2003-06-10 | Shell Oil Company | System and method for driving pipe |
| CN1594631A (en) * | 2004-07-01 | 2005-03-16 | 陈玉如 | Expanding metal material and bulged tube device for petroleum oil well |
| CN1944945A (en) * | 2006-10-31 | 2007-04-11 | 刘文西 | Expansion pipe combined well repairing device |
| CN200943455Y (en) * | 2006-04-20 | 2007-09-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Expandable tail tube suspension device for petroleum drilling well |
| CN201412097Y (en) * | 2009-06-05 | 2010-02-24 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion type hanger for expansion sieve tube |
-
2009
- 2009-06-04 CN CN2009101435743A patent/CN101906945A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575240B1 (en) * | 1998-12-07 | 2003-06-10 | Shell Oil Company | System and method for driving pipe |
| CN1594631A (en) * | 2004-07-01 | 2005-03-16 | 陈玉如 | Expanding metal material and bulged tube device for petroleum oil well |
| CN200943455Y (en) * | 2006-04-20 | 2007-09-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Expandable tail tube suspension device for petroleum drilling well |
| CN1944945A (en) * | 2006-10-31 | 2007-04-11 | 刘文西 | Expansion pipe combined well repairing device |
| CN201412097Y (en) * | 2009-06-05 | 2010-02-24 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion type hanger for expansion sieve tube |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182417A (en) * | 2011-04-15 | 2011-09-14 | 中国石油天然气股份有限公司 | Fishing and expanding integrated expansion pipe patching tool |
| CN103089180A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Casing sidetracked well completion method using expansion screen tube |
| CN103089182A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Well completion method for tail pipe combining expansion sleeve pipe and expansion sieve pipe |
| CN103089193A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Tail pipe completion method by plugging expandable casing on top of screen pipe |
| CN103089182B (en) * | 2011-10-31 | 2016-02-10 | 中国石油化工股份有限公司 | The completion method for tail of a kind of combined expanded sleeve pipe and expandable screen |
| CN102889063A (en) * | 2012-09-05 | 2013-01-23 | 上海管力卜石油设备有限公司 | Suspension device for expansion pipe used in thermal recovery horizontal well and using method for suspension device |
| CN102889063B (en) * | 2012-09-05 | 2015-07-15 | 上海管力卜石油设备有限公司 | Suspension device for expansion pipe used in thermal recovery horizontal well and using method for suspension device |
| CN102966323A (en) * | 2012-11-12 | 2013-03-13 | 中国石油天然气股份有限公司 | Combined reducing expansion cone of expansion pipe |
| 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 |
| CN107524428A (en) * | 2017-08-11 | 2017-12-29 | 中国石油集团渤海钻探工程有限公司 | A kind of swollen cone of hydraulic thrust of coiled tubing conveying expandable screen |
| CN108533200A (en) * | 2018-06-23 | 2018-09-14 | 陕西久鑫石油工程技术有限公司 | A kind of expansion tube is outstanding to insert fix tool and restorative procedure |
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Application publication date: 20101208 |