CN102889063A - Suspension device for expansion pipe used in thermal recovery horizontal well and using method for suspension device - Google Patents
Suspension device for expansion pipe used in thermal recovery horizontal well and using method for suspension device Download PDFInfo
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- CN102889063A CN102889063A CN2012103260478A CN201210326047A CN102889063A CN 102889063 A CN102889063 A CN 102889063A CN 2012103260478 A CN2012103260478 A CN 2012103260478A CN 201210326047 A CN201210326047 A CN 201210326047A CN 102889063 A CN102889063 A CN 102889063A
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- expansion
- pipe
- thermal recovery
- horizontal well
- suspension
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Abstract
The invention discloses a suspension device for an expansion pipe used in a thermal recovery horizontal well. The suspension device comprises a drill rod, a material dropping cap, an expansion suspension body which consists of the expansion pipe, a suspension tooth boss and a suspension rubber ring, and an expansion emission chamber, wherein the expansion emission chamber is formed by enclosing an expansion cone, a pushing piston, a bearing nut, a sealing plug and the expansion pipe; a sealing connection pair is connected to the lower part of the sealing plug, and the sealing connection pair, the drill rod and the expansion emission chamber form a sealing cavity; a lifting connection pair is connected to the lower part of the drill rod and used for lifting the sealing connection pair; and a tail pipe coupling is connected to the lower part of the expansion pipe. The invention also discloses a using method for the suspension device. By the suspension device, the operation is simplified, damage to tail pipes is reduced, and a phenomenon that sundries fall into the expansion pipe is avoided.
Description
Technical field
The present invention relates to well liner hanger field, particularly a kind of horizontal well thermal recovery expansion pipe hanger and using method thereof.
Background technology
In oil drilling and the construction of exceptional well type, to be lowered to multilayer sleeve, connect mainly with engage thread between the same specification sleeve pipe; The sleeve pipe of different-diameter then connects with hang, and this suspension arrangement is called hanger.What generally use at present is a kind of mechanical tracks formula hanger, and this hanger uses often to show the suspension force deficiency owing to being subjected to the connection space restriction and the structure design shortcoming affects, and the frequent breaking releasing of suspension tooth pawl, the tail pipe that causes the being draped well that falls causes the accident; And this hanger connection space limits, and its internal diameter significantly dwindles, and the caliber that can hang is corresponding significant minimizing also; Also have a fatal weakness, mechanical tracks formula hanger can only play the suspension effect, connects repeated segments and will rely on thin cement sheath sealing, does not reach seal request more than 90% according to this hanger of statistics, directly affects the oil well life-span.In addition, after bulged tube technology is risen, adopt expansion pipe hanger, solved the problem of existing hanger suspension force deficiency and sealing leak, but complex structure, slip casting cement operations difficulty is high, and hang to finish again to bore and mill substrate, sometimes the bottom tail pipe is easily exerted an influence, misoperation can be bored and be milled to the bottom tail pipe, especially can't bore in horizontal well thermal recovery and mill operation.Simultaneously, in expansion tube expansion work progress, because the top barrel opens wide, sometimes because fall into the overslaugh expansion process such as foreign material or silt or when brill mills, can't drill through.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome prior art such as slip casting is cemented the well, to bore and mill the substrate operating difficulties, and easily fall into the defective of foreign material, a kind of horizontal well thermal recovery expansion pipe hanger and using method thereof being provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of horizontal well thermal recovery expansion pipe hanger, comprise a drilling rod, one Junk prevention cap, one by expansion tube, the suspension tooth is protruding, hang expanding suspension body and an expansion bay that the glue ring forms, its characteristics are, described expansion bay is by an expansion cone, one propelling piston, one carrying nut and a shutoff and described expansion tube enclose and form, described shutoff below is connected with one and is tightly connected to pay and is used for and described drilling rod, described expansion bay forms closed chamber, described drilling rod below is connected with one and lifts to connect to pay and be used for lifting described being tightly connected and pay, described expansion tube below is connected with a tail pipe box cupling, described be tightly connected to pay comprise a sealed joint pipe and a pitching seat, described sealed joint pipe upper end is connected with described shutoff, the lower end is connected with described pitching seat, described lift connect to pay comprise that one lifts the center-pole that cone and is positioned at described sealed joint pipe, described center-pole upper end is connected by box cupling with described drilling rod, and the lower end is connected with the described cone that lifts.
Better, described expansion tube top is provided with a Junk prevention cap, can prevent effectively that foreign material from crashing into.
Better, described shutoff is comprised of steel part or the aluminum component with the O RunddichtringO, and described shutoff is inner and described to be tightly connected and pair to be connected.
Better, described drilling rod top is provided with box and is used for and is connected the pin thread connection of drilling tool.
Better, described tail pipe box cupling is fixed by welding on the described expansion tube, and described tail pipe box cupling lower end is provided with a box and is used for being connected with the standard postlude sleeve pipe.
Better, protruding and the described suspension glue of described suspension tooth ring is arranged on the described expansion tube outside, protruding being shaped as of described suspension tooth has the fin of triangular-section, and described suspension glue ring is comprised of the ring apron that firmly is pressed together on described expansion tube external surface and metal composite.
Better, described expansion cone is that involute is oval, described propelling piston is a plurality of rubber combined, is shaped as umbrella shape.
The present invention also comprises a kind of using method of horizontal well thermal recovery expansion pipe hanger, and its characteristics are, it adopts above-described horizontal well thermal recovery expansion pipe hanger to realize, may further comprise the steps:
Step S
1, below described tail pipe box cupling union tail, and send into described horizontal well thermal recovery expansion pipe hanger in the well and drop to predetermined well depth;
Step S
2, connect described drilling rod to well head, well-flushing, pitching makes it fall into the described pitching seat that is tightly connected and pays, and seals the described system of paying that is tightly connected;
Step S
3, water filling sprains and press to promote to move on described expansion cone and the described propelling piston described expansion tube upper end, makes described expansion tube hole enlargement, thereby the protruding well inner sleeve inwall of nipping of the described suspension tooth of extruding, described suspension glue ring is pressed in internal surface of sleeve pipe;
Step S
4, on carry described drilling rod, drive that the bottom connects described lift secondary up and lift described being tightly connected pay until propose well head.
On the basis that meets this area general knowledge, above-mentioned each optimum condition, but any combination namely get the preferred embodiments of the invention.
Positive progressive effect of the present invention is: by utilization of the present invention, simplified operation, reduced task difficulty, reduced the damage of tail pipe, avoided simultaneously falling into foreign material.
Description of drawings
Fig. 1 is the structure chart of preferred embodiment of the present invention.
Fig. 2 is the sectional view of preferred embodiment of the present invention.
The specific embodiment
Mode below by embodiment further specifies the present invention, but does not therefore limit the present invention among the described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example according to conventional method and condition, or is selected according to catalogue.
As shown in the figure, a kind of horizontal well thermal recovery expansion pipe hanger, comprise a drilling rod 1, one Junk prevention cap 2, one by expansion tube 9, hang tooth protruding 3, hang expanding suspension body and an expansion bay that glue ring 4 forms, described expansion bay is by an expansion cone 6, one propelling piston 7, one carrying nut 8 and a shutoff 10 enclose with described expansion tube 9 and form, described shutoff 10 belows are connected with one and are tightly connected and pay are used for and described drilling rod 1, described expansion bay forms closed chamber, drilling rod 1 below is connected with one and lifts and connect to pay be used for lifting described being tightly connected and pay, and described expansion tube 9 belows are connected with a tail pipe box cupling 11.
Described be tightly connected to pay comprise a sealed joint pipe 12 and a pitching seat 15, sealed joint pipe 12 upper ends are connected with shutoff 10, the lower end is connected with pitching seat 15.
Described lift connect to pay comprise that one lifts the center-pole 13 that cone 14 and is positioned at sealed joint pipe 12, center-pole 13 upper ends and drilling rod 1 are connected by box cupling, the lower end is bored 14 and is connected with lifting.When lifting cone 14 when going upward to shutoff 10, can drive described lift connect pay and described be tightly connected to pay lift out outside the expansion tube 9.
Hang tooth protruding 3 and hang glue ring 4 and be arranged on expansion tube 9 outsides, hang the fin with triangular-section that is shaped as of tooth protruding 3, hang glue ring 4 and be the annular high temperature resistant cushion rubber and the metal composite that firmly are pressed together on described expansion tube external surface by sulfuration process and form.
Expansion cone 6 is that involute is oval, and propelling piston 7 is a plurality of rubber combined, is shaped as umbrella shape, screws in the rear portion of expansion cone 6 on the drilling rod 1; Carrying nut 8 is used for locking expansion cone 6 and propelling piston 7.
The using method of horizontal well thermal recovery expansion pipe hanger is as follows:
101, union tail below tail pipe box cupling 11, and described horizontal well thermal recovery expansion pipe hanger stretched into well inner sleeve 5 and drop to predetermined well depth;
102, connect described drilling rod 1 to well head, well-flushing, pitching makes it fall into the described pitching seat that is tightly connected and pays, and seals the described system of paying that is tightly connected;
103, water filling is sprained to press and is promoted to move to described expansion tube 9 upper ends on expansion cone 6 and the described propelling piston 7, makes described expansion tube 9 hole enlargements, sleeve pipe 5 inwalls thereby the described suspension tooth protruding 3 of extruding is nipped, and described suspension glue ring 4 is pressed in sleeve pipe 5 inwalls;
104, carry described drilling rod 1 on, what drive that the bottom connects describedly lifts secondary up and lifts described sealing pair until propose well head.
" sleeve pipe, its external diameter are Φ 244.48mm, and wall thickness is 10.03mm, and well depth is the high-temp thermal recovery well of 350m, and day produce oil 6T finds that through exploration 420-460 rice has a new oil reservoir in concrete the application, such as certain well, 9-5/8.Consider that horizontal well drilling hangs sand-proof pipe, uses the thermal production well expansion hanger.After brill mills passage, be lowered to 100 meters long Φ 178mm tail pipe after design well depth, connect the thermal production well expansion hangers by tail pipe box cupling 11; Circulation well cleanup, pitching enter the connection of pitching seat 15 close encapsulation and pay 12, thus closed system; Water filling is sprained to press expansion tube 9 is expanded, the ground turn on pump, and the pressure ascending order is: 5MPa, 10MPa, 15MPa, after pressure rose to 15MPa, abrupt pressure was down to zero, hung successfully and finished; On carry drilling tool until lift connect to pay, be tightly connected and pay.Pressure testing: 15MPa, the 30Min pressure drop illustrates and hangs firmly and good seal less than 0.5MPa.
Claims (6)
1. horizontal well thermal recovery expansion pipe hanger, comprise a drilling rod, one Junk prevention cap, one by expansion tube, the suspension tooth is protruding, hang expanding suspension body and an expansion bay that the glue ring forms, it is characterized in that, described expansion bay is by an expansion cone, one propelling piston, one carrying nut and a shutoff and described expansion tube enclose and form, described shutoff below is connected with one and is tightly connected to pay and is used for and described drilling rod, described expansion bay forms closed chamber, described drilling rod below is connected with one and lifts to connect to pay and be used for lifting described being tightly connected and pay, described expansion tube below is connected with a tail pipe box cupling, described be tightly connected to pay comprise a sealed joint pipe and a pitching seat, described sealed joint pipe upper end is connected with described shutoff, the lower end is connected with described pitching seat, described lift connect to pay comprise that one lifts the center-pole that cone and is positioned at described sealed joint pipe, described center-pole upper end is connected by box cupling with described drilling rod, and the lower end is connected with the described cone that lifts.
2. horizontal well thermal recovery expansion pipe hanger as claimed in claim 1 is characterized in that, described shutoff is comprised of steel part or the aluminum component with the O RunddichtringO, and described shutoff is inner and described to be tightly connected and pair to be connected.
3. horizontal well thermal recovery expansion pipe hanger as claimed in claim 1 is characterized in that, described tail pipe box cupling is by turn-knob and be weldingly fixed on the described expansion tube, and described tail pipe box cupling lower end is provided with a box and is used for being connected with the standard postlude sleeve pipe.
4. horizontal well thermal recovery expansion pipe hanger as claimed in claim 1 is characterized in that, the protruding and described suspension glue of described suspension tooth ring is arranged on the described expansion tube outside, and protruding being shaped as of described suspension tooth has the fin of triangular-section.
5. horizontal well thermal recovery expansion pipe hanger as claimed in claim 1 is characterized in that, described expansion cone is that involute is oval, and described propelling piston is a plurality of rubber combined, is shaped as umbrella shape.
6. the using method of a horizontal well thermal recovery expansion pipe hanger is characterized in that, it adopts horizontal well thermal recovery expansion pipe hanger as claimed in claim 1 to realize, may further comprise the steps:
Step S
1, below described tail pipe box cupling, connect a tail pipe, and described horizontal well thermal recovery expansion pipe hanger is sent in the well, and is dropped to predetermined well depth;
Step S
2, connect described drilling rod to well head, well-flushing, pitching makes it fall into the described pitching seat that is tightly connected and pays, and seals the described system of paying that is tightly connected;
Step S
3, water filling sprains and press to promote to move on described expansion cone and the described propelling piston described expansion tube upper end, makes described expansion tube hole enlargement, thereby the internal surface of sleeve pipe in the protruding well of nipping of the described suspension tooth of extruding, described suspension glue ring is pressed in internal surface of sleeve pipe;
Step S
4, on carry described drilling rod, drive that the bottom connects described lift secondary up and lift described being tightly connected pay until propose well head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326047.8A CN102889063B (en) | 2012-09-05 | 2012-09-05 | Suspension device for expansion pipe used in thermal recovery horizontal well and using method for suspension device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326047.8A CN102889063B (en) | 2012-09-05 | 2012-09-05 | Suspension device for expansion pipe used in thermal recovery horizontal well and using method for suspension device |
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| Publication Number | Publication Date |
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| CN102889063A true CN102889063A (en) | 2013-01-23 |
| CN102889063B CN102889063B (en) | 2015-07-15 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050194129A1 (en) * | 2004-03-08 | 2005-09-08 | Campo Donald B. | Expander for expanding a tubular element |
| CN101260791A (en) * | 2007-03-08 | 2008-09-10 | 中国石油化工股份有限公司 | Raising-out type ball seat |
| CN101392633A (en) * | 2007-09-21 | 2009-03-25 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion sieve tube hanger |
| CN101575951A (en) * | 2008-05-05 | 2009-11-11 | 上海管力卜石油设备有限公司 | Petroleum expansion pipe hanger and construction technology |
| 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 |
| CN202810736U (en) * | 2012-09-05 | 2013-03-20 | 上海管力卜石油设备有限公司 | Thermal recovery horizontal well expansion pipe hanger |
-
2012
- 2012-09-05 CN CN201210326047.8A patent/CN102889063B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050194129A1 (en) * | 2004-03-08 | 2005-09-08 | Campo Donald B. | Expander for expanding a tubular element |
| CN101260791A (en) * | 2007-03-08 | 2008-09-10 | 中国石油化工股份有限公司 | Raising-out type ball seat |
| CN101392633A (en) * | 2007-09-21 | 2009-03-25 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion sieve tube hanger |
| CN101575951A (en) * | 2008-05-05 | 2009-11-11 | 上海管力卜石油设备有限公司 | Petroleum expansion pipe hanger and construction technology |
| 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 |
| CN202810736U (en) * | 2012-09-05 | 2013-03-20 | 上海管力卜石油设备有限公司 | Thermal recovery horizontal well expansion pipe hanger |
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| CN102889063B (en) | 2015-07-15 |
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