CN101575951B - Petroleum expansion pipe hanger and construction technology - Google Patents
Petroleum expansion pipe hanger and construction technology Download PDFInfo
- Publication number
- CN101575951B CN101575951B CN 200810036979 CN200810036979A CN101575951B CN 101575951 B CN101575951 B CN 101575951B CN 200810036979 CN200810036979 CN 200810036979 CN 200810036979 A CN200810036979 A CN 200810036979A CN 101575951 B CN101575951 B CN 101575951B
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- expansion
- pipe
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- head
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- 238000010276 construction Methods 0.000 title claims abstract description 7
- 239000003208 petroleum Substances 0.000 title claims abstract description 7
- 238000005516 engineering process Methods 0.000 title claims abstract description 6
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims description 33
- 239000003292 glue Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000004568 cement Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 210000002445 nipple Anatomy 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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Abstract
The invention relates to a device which enables two petroleum casing pipes with different diameters to be hanged and connected by expanding the casing pipes underground, and a construction technology.The device comprises a drilling string, an expansion pipe hanging body, a length-adjusting scroll cover set, an expansion transmitting room and a tail pipe connection pair and is characterized in tha t the drilling string consists of an adjusting-centering pipe nipple, a transition drill pipe, a push-pull central pipe and a bearing screw cap; the expansion pipe hanging body consists of a casing pipe, a hanging pipe, a hanging projection and a hanging rubber ring; the length-adjusting scroll cover set consists of a length-adjusting scroll cover and a clamping nut; the expansion transmitting room consists of a pull cap, a propelling piston, an expansion head, an upper expansion pipe cavity body, a lower expansion pipe cavity body, a steel ball, a transmitting seat, an O-shaped seal rig and acirclip for a hole; and the tail pipe connection pair consists of a lower expansion pipe, a tail pipe connection hoop and tail pipes. The invention has the advantages that hanging modes of hydraulic push, lubrication expansion head and hard and soft combination are adopted, thereby having reliable tightness and strong hanging capability; and circulation of drilling fluid, injection of cement paste and hanging connection can be completed in one construction, and thereby convenient operation is achieved.
Description
Technical field
The invention belongs to the connection between the pipeline, especially relate to the mode of passing through sleeve pipe hole enlargement and expansion in the down-hole, make two kinds of different-diameter petroleum casing pipe suspension connection devices.
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 to show that often suspension force is not enough 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; Also have in addition 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 the single compressed cushion rubber to hang, this hanger is subjected to dielectric corrosion easily aging, sometimes loses efficacy.
Summary of the invention
In order to overcome the problems referred to above, the present invention proposes a kind of nonpetroleum expansion pipe hanger, and this hanger has solved the problem of the not enough and sealing leak of existing hanger suspension force, and circulation of drilling fluid, injects mud and be connected connection technique and once finish.This expansible pipe hanger is simple in structure, sealing is stable, it is reliable, flexible to operation to hang.
The present invention relates to a kind of petroleum expansion pipe hanger, comprise: drill string, expanding suspension body, the long rotation set group of accent, expansion bay are connected with tail pipe to be paid, it is characterized in that: said drill string forms by regulating centering short segment, transition drilling rod, push-and-pull central tube and carrying nut, regulating centering short segment top box is connected with top drilling tool pin thread, its underpart pin thread is connected with transition drilling rod box, by threaded adjusting and the relative position of transferring long rotation set group; Said expansion tube suspension body by sleeve pipe, suspended tubes, the suspension tooth is protruding and hang the glue ring forms.Hanging tooth protruding is the fin with triangular-section of suspended tubes external surface; Hanging the glue ring is the ring apron that firmly presses to the suspended tubes external surface by sulfuration process.By the expanding suspension pipe, make the suspension tooth of suspended tubes hole enlargement and the outer wall of extruding protruding and hang the glue ring and be snapped at internal surface of sleeve pipe, form axial suspension force; The long rotation set group of said accent is by transferring long rotation set and clamping nut to form, transfer the box on long rotation set top to match with adjusting centering short segment surface pin thread, transfer long rotation set bottom that the taper guide shoe is arranged, the taper guide shoe inserts within the horn mouth of suspended tubes upper end, is locked by clamping nut; Said expansion bay is comprised of with elastic scheibe traction cap, propelling piston, expansion-head, upper expansion tube cavity and lower expansion tube cavity, steel ball, launching seat, O RunddichtringO, hole.Propelling piston top is the steel guard shield, and it is shaped as umbrella shape; The bottom is tubaeform and includes rubber combined of steel frame, forms relative positioning by traction cap and push-and-pull central tube; Expansion-head is that involute is oval, screws on the push-and-pull central tube; The carrying nut is used for the locking expansion-head; Upper expansion tube cavity is comprised of two parts, and top is that former suspended tubes size, length account for 4/5, the bottom by machinery expanding can pack into expansion-head and the carrying nut, be called the expansion tube cavity; Lower expansion tube cavity is comprised of two parts: machinery expanding is passed through on top, and seam identical with the cavity diameter of upper expansion tube connects, lower length accounts for 1/3, drops into steel ball and falls within on the launching seat with mesopore, and launching seat is fixed in the inner chamber of lower expansion tube with elastic scheibe, O RunddichtringO by the hole.The pin thread of lower expansion tube is connected with the box of tail pipe box cupling; Said tail pipe connects to pay and is comprised of lower expansion tube, tail pipe box cupling and tail pipe, and the tail pipe box cupling connects lower expansion tube and tail pipe, and the formation tail pipe connects to be paid.The technique of expansion hanger refers to the expansion hanger of union tail behind predetermined well depth, and injected water mud successively by drilling rod, adjusting centering short segment, transition drilling rod, push-and-pull central tube mesopore and launching seat hole, and returns and design well depth to sleeve pipe.Pitching closed system, water filling are sprained to press and are promoted propelling piston, move on the expansion-head and make the hole enlargement of expanding suspension pipe, and the extrusion ring-type hangs the protruding internal surface of sleeve pipe of nipping of tooth, hang the glue ring and compress inwall.When expansion-head arrives the suspended tubes upper end, expand and finish.Propose drill string, the long rotation set of accent and clamping nut this moment together with expansion-head and carrying nut.Bore at last and mill launching seat, the cleaning passage is finished the expanding suspension operation.Advantage of the present invention be adopted draw before the hydraulic pressure, lubricated expansion-head and soft or hard combined suspension pattern, simple in structure, sealing is reliable, suspension force is strong; Circulation of drilling fluid, injected water mud and be connected and connect once construction and can finish, easy to operate, applying flexible, the life-span is long.
Description of drawings
Accompanying drawing is structural representation of the present invention,
The specific embodiment
Expansion pipe hanger is connected a pair institute and is formed by drill string, expanding suspension body, the long rotation set group of accent, expansion bay among the figure with tail pipe, and above-mentioned said drill string forms by regulating centering short segment 2, transition drilling rod 5, push-and-pull central tube 9 and carrying nut 14.Regulate centering short segment top box and be connected with top drilling tool pin thread, the bottom pin thread is connected with transition drilling rod box, by threaded adjusting and the relative position of transferring long rotation set group.The pin thread of transition drilling rod lower end is connected with push-and-pull central tube upper end box.Push-and-pull central tube lower step is equipped with expansion-head, compresses expansion-head by the carrying nut block.Propelling piston has been installed by traction cap in push-and-pull central tube middle part.Said expansion tube suspension body is comprised of sleeve pipe 1, suspended tubes 6, suspension tooth protruding 8 and suspension glue ring 7.By the expanding suspension pipe, make suspended tubes hole enlargement and extrusion hang tooth protruding and hang the glue ring and be snapped at internal surface of sleeve pipe, form axial suspension force, the long rotation set group of said accent is by transferring long rotation set 4 and clamping nut 3 to form.Transferring long rotation set is the threaded drum in top, there is the taper guide shoe its underpart, stretch within the bellmouth orifice of suspended tubes upper end, adjust fixedly suspended tubes of long rotation set, then with clamping nut locking, said expansion bay is comprised of with elastic scheibe 16 and O RunddichtringO 17 traction cap 10, propelling piston 11, expansion-head 13, upper expansion tube cavity 12 and lower expansion tube cavity 15, steel ball 18, launching seat 19, hole.Upper expansion tube cavity and lower expansion tube cavity, the identical and seam of the diameter of contact surface.Steel ball drops on the launching seat with mesopore, and with elastic scheibe and O RunddichtringO fixed transmission seat, the O RunddichtringO guarantees to seal between launching seat and the lower expansion tube with the hole.
Said tail pipe connects to pay and is comprised of lower expansion tube 20, tail pipe box cupling 21 and tail pipe 22.The tail pipe box cupling connects lower expansion tube and tail pipe, forms the tail pipe connection and pays.A bite 5
1/
2" sleeve pipe, external diameter Φ 140mm, the oil well of well depth 1180m, a day produce oil is down to 3-5T by 40T.Find at 1690-1720m one new oil reservoir is arranged through exploration.Consider to beat new well, drilling cost is higher, adopts the old well intensification method ability of resuming production, select down 4 " tail pipe (sleeve pipe) completion, application expansion pipe hanger and the suspension of former casing.Lower tail pipe: add deep drilling reach the design well depth after, be lowered to Φ 102mm sleeve pipe 560m; The expander mounting tube hanger; Circulation well cleanup: select circulation of drilling fluid 3-5 week; Design cement slurry volume: comprise preposition liquid measure, cement slurry volume, rearmounted liquid measure; Injected water mud: density is 1.78-1.81; Locking suspending weight: (drilling tool weight); Throw the steel ball closed system; The water filling compression swelling suspended tubes of spraining: the ground turn on pump, the pressure ascending order is: 10MPa, 15MPa, 20MPa, 25MPa, after pressure rose to 25MPa, abrupt pressure was down to zero, hung successfully end; Trip out drilling tool: comprise drill string, propelling piston, expansion-head; Brill mills launching seat: select Φ 118mm hollow boring bit to creep into 0.3m; Drifting: Φ 118mm passes to tail pipe and connects a pair following 3-5m; Pressure testing: 15MPa, the 30Min pressure drop illustrates and hangs firmly and good seal less than 0.5MPa.
Claims (2)
1. petroleum expansion pipe hanger, comprise drill string, the expanding suspension body, transfer long rotation set group, the expansion bay is connected with tail pipe to be paid, it is characterized in that: drill string is by regulating centering short segment, the transition drilling rod, push-and-pull central tube and carrying nut form, regulating centering short segment top box is connected with top drilling tool pin thread, its underpart pin thread is connected with transition drilling rod box, by threaded adjusting and the relative position of transferring long rotation set group, the expansion tube suspension body is by sleeve pipe, suspended tubes, the suspension tooth is protruding to be formed with suspension glue ring, by the expanding suspension pipe, make the suspension tooth of suspended tubes hole enlargement and the outer wall of extruding protruding and hang the glue ring and be snapped at internal surface of sleeve pipe, form axial suspension force, transfer long rotation set group by transferring long rotation set and clamping nut to form, transfer the box on long rotation set top to match with adjusting centering short segment surface pin thread, transfer long rotation set bottom that the taper guide shoe is arranged, the taper guide shoe inserts within the horn mouth of suspended tubes upper end, locked by clamping nut, the expansion bay is by traction cap, propelling piston, expansion-head, upper expansion tube cavity and lower expansion tube cavity, steel ball, launching seat, the O RunddichtringO, the hole forms with elastic scheibe, propelling piston top is the steel guard shield, it is shaped as umbrella shape, the bottom is tubaeform and includes rubber combined of steel frame, forms relative positioning by traction cap and push-and-pull central tube; Expansion-head screws on the push-and-pull central tube, carrying nut locking expansion-head, upper expansion tube cavity is comprised of two parts, the bottom by machinery expanding pack into expansion-head and the carrying nut, be called the expansion tube cavity, lower expansion tube cavity is comprised of two parts, machinery expanding is passed through on top, and seam identical with the cavity diameter of upper expansion tube connects, lower length accounts for 1/3, dropping into steel ball falls within on the launching seat with mesopore, launching seat is fixed in the inner chamber of lower expansion tube with elastic scheibe and O RunddichtringO by the hole, the pin thread of lower expansion tube is connected with the box of tail pipe box cupling, and tail pipe connects to be paid by lower expansion tube, tail pipe box cupling and tail pipe form, the tail pipe box cupling connects lower expansion tube and tail pipe, forms the tail pipe connection and pays.
2. construction technology of utilizing petroleum expansion pipe hanger in the claim 1 to implement expanding suspension, it is characterized in that: with the expansion hanger of union tail behind predetermined well depth, injected water mud, pass through successively drilling rod, regulate centering short segment, the transition drilling rod, push-and-pull central tube mesopore and launching seat hole, and return and to sleeve pipe, design well depth, then throw steel ball closed system to the launching seat, water filling is sprained to press and is promoted propelling piston again, move on the expansion-head and make the hole enlargement of expanding suspension pipe, the extrusion ring-type hangs the protruding internal surface of sleeve pipe of nipping of tooth, hang the glue ring and compress inwall, when expansion-head arrives the suspended tubes upper end, expand and finish, subsequently with drill string, transfer long rotation set and clamping nut to propose together with expansion-head and carrying nut, bore at last and mill launching seat, the cleaning passage is finished the expanding suspension operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810036979 CN101575951B (en) | 2008-05-05 | 2008-05-05 | Petroleum expansion pipe hanger and construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810036979 CN101575951B (en) | 2008-05-05 | 2008-05-05 | Petroleum expansion pipe hanger and construction technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101575951A CN101575951A (en) | 2009-11-11 |
| CN101575951B true CN101575951B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810036979 Active CN101575951B (en) | 2008-05-05 | 2008-05-05 | Petroleum expansion pipe hanger and construction technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN101575951B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN104747110A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Expansion casing positioning device |
| CN103790533B (en) * | 2014-01-03 | 2016-08-17 | 中国石油天然气股份有限公司 | Cementable expandable liner hanger |
| CN106567676B (en) * | 2015-10-12 | 2018-09-11 | 中石化石油工程技术服务有限公司 | Buckling type tail drillng operation device and its operational method |
| 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 |
| CN110965960B (en) * | 2018-09-29 | 2024-06-28 | 中国石油化工股份有限公司 | Well completion string for changing well bottom and operation method |
| CN115538971B (en) * | 2021-06-30 | 2025-10-24 | 中石化石油工程技术服务有限公司 | Secondary completion pipe string and completion method for liner head lost circulation well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060131A (en) * | 1977-01-10 | 1977-11-29 | Baker International Corporation | Mechanically set liner hanger and running tool |
| US5346016A (en) * | 1991-09-16 | 1994-09-13 | Conoco Inc. | Apparatus and method for centralizing pipe in a wellbore |
| CN2835534Y (en) * | 2005-08-05 | 2006-11-08 | 刘文西 | Bottomless expansion pipe diameter expanding device |
| CN1944946A (en) * | 2006-10-31 | 2007-04-11 | 刘文西 | Upward pushing type expansion pipe well repairing device |
| CN1944945A (en) * | 2006-10-31 | 2007-04-11 | 刘文西 | Expansion pipe combined well repairing device |
| CN101122221A (en) * | 2007-09-21 | 2008-02-13 | 中国石油天然气集团公司 | Hydraulic expansion type screen pipe hanger |
| CN101161981A (en) * | 2007-11-29 | 2008-04-16 | 中国石油天然气集团公司 | Hydraulic mechanical double-action buckling type tail pipe hanger |
-
2008
- 2008-05-05 CN CN 200810036979 patent/CN101575951B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060131A (en) * | 1977-01-10 | 1977-11-29 | Baker International Corporation | Mechanically set liner hanger and running tool |
| US5346016A (en) * | 1991-09-16 | 1994-09-13 | Conoco Inc. | Apparatus and method for centralizing pipe in a wellbore |
| CN2835534Y (en) * | 2005-08-05 | 2006-11-08 | 刘文西 | Bottomless expansion pipe diameter expanding device |
| CN1944946A (en) * | 2006-10-31 | 2007-04-11 | 刘文西 | Upward pushing type expansion pipe well repairing device |
| CN1944945A (en) * | 2006-10-31 | 2007-04-11 | 刘文西 | Expansion pipe combined well repairing device |
| CN101122221A (en) * | 2007-09-21 | 2008-02-13 | 中国石油天然气集团公司 | Hydraulic expansion type screen pipe hanger |
| CN101161981A (en) * | 2007-11-29 | 2008-04-16 | 中国石油天然气集团公司 | Hydraulic mechanical double-action buckling type tail pipe hanger |
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| Publication number | Publication date |
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| CN101575951A (en) | 2009-11-11 |
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