CN106801589A - High temperature resistant big orifice hydraulic booster expanding suspension instrument and method - Google Patents
High temperature resistant big orifice hydraulic booster expanding suspension instrument and method Download PDFInfo
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- CN106801589A CN106801589A CN201510836407.2A CN201510836407A CN106801589A CN 106801589 A CN106801589 A CN 106801589A CN 201510836407 A CN201510836407 A CN 201510836407A CN 106801589 A CN106801589 A CN 106801589A
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- 239000000725 suspension Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims abstract description 3
- 239000004568 cement Substances 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 239000011083 cement mortar Substances 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 239000003129 oil well Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 210000000078 claw Anatomy 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001136800 Anas acuta Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses high temperature resistant big orifice hydraulic booster expanding suspension instrument and method, wherein instrument includes the anchoring device, hydraulic pusher, the expansion assembly that are sequentially connected from top to bottom, suspension small casing, cementing assembly.The expansion tube empty set is outside center-pole, and annular space is formed each other, the upper semisection and lower semisection of the expansion tube are by middle Taper Pipe transition, expansion tube operating room is formed between expansion tube lower semisection and Taper Pipe and center-pole outer wall, in expansion tube work indoor location expansion cone, the expansion tube lower end union tail variable buckle, built-in large rubber plug in the tail pipe variable buckle.The center-pole top is connected with the center pull rod of hydraulic pusher, and bottom is connected with expansion combination sealing.The expansion pipe outer wall is provided with interval-staggered metallic packing ring, rubber seal tape.The present invention carries out expanding suspension, it is possible to connect cementing tool, the technique for carrying out cementing sealing using metal sealing mode is combined to horizontal well breakage sleeve pipe.
Description
Technical field
The present invention relates to oilfield exploitation Suspension Technique, specifically high temperature resistant big orifice hydraulic booster expanding suspension instrument
And method.
Background technology
Hanger is a specific purpose tool in liner completion, well cementing process, there is mechanical and two kinds of fluid pressure type.Tradition is outstanding
Extension instrument such as slip-type hanger, packing formula hanger, rotary hanger and expansion hanger etc..Slips mode is carried out
Suspension, does not possess sealing function, and internal diameter is smaller, it has also become the weak link in liner completion tubing string.Expansion hanger
It is the developing direction of domestic and international extension hanger technology, since research and development, has just been caused in the industry with its unique technical advantage
Extensive concern.Current existing expansion hanger has that component part is more, and complex structure, interior latus rectum is small, hanging capacity
Limited and rubber seal problems such as easy failure under HTHP, high corrosion medium, it is impossible to adapt to complicated hole condition
The need for various completions, suspension failure is often resulted in.
The casing damage in oil-water well situation of current Shengli Oil Field is also very serious, also increases 400 mouthfuls or so of casing damaged well newly every year, controls
Reason workload is very big.A large amount of appearance of casing damaged well cause that oil field drives a well to count and drastically decline with yield.Casing damaged well type is more
It is run-down and deformation, is to need key problems-solving in casing damaged well reparation.In particular with heavy crude heat extraction horizontal well application
The further expansion of scale, set damage phenomenon is increasingly severe, and after excessive round steam soak, pit shaft situation is deteriorated, set
Pipe is run-down, corrosion damages ring seriously, and damage section is oversize, and typically repairing set technology cannot administer.
Because long-term underground geological conditions deteriorates, well depth complex structure, the cement sheath seal failure that cementing quality difference causes, layer
Between mutually the problem altered also more and more substantially, and packing cannot solve problems in the pipe of routine.
The class problem of the above two can be by the way of small casing be hung：Milling, diameter enlarging treatment can be first taken for casing damaged well,
The renovation technique of small casing sealing is hung in original damages sleeve pipe；For the oil well that cement sheath fails, the small set of suspension can be taken
The measure of the secondary well cementation dead chick of pipe.Existing Suspension Technique has the following disadvantages：Larger is influenceed on casing inner diameter, is had a strong impact on
Later stage operation；Complex structure, compressive resistance is low, hanging capacity is limited, the term of validity is short；Rubber seal HTHP,
Easily failed under high corrosion medium, it is impossible to the need for meeting thermal production well.
The content of the invention
It is an object of the invention to provide high temperature resistant big orifice hydraulic booster expanding suspension instrument and method, using combining metal
Sealing means, expanding suspension is carried out to horizontal well breakage sleeve pipe, and this instrument simultaneously can connect cementing tool, carry out water filling
The solid technique of mudding.
In order to reach above-mentioned purpose, present invention employs following technical scheme, high temperature resistant big orifice hydraulic booster expanding suspension
Instrument, including anchoring device, hydraulic pusher, the expansion assembly being sequentially connected from top to bottom, suspension small casing, water filling
Mud assembly, large rubber plug, small plug, the built-in large rubber plug in the expansion assembly inside, the small plug is after cement mortar is injected
From central tube input, into large rubber plug inside set, drive large rubber plug it is descending close cementing switch.
The expansion assembly includes center-pole, expansion tube, expansion cone, tail pipe variable buckle, and the expansion tube empty set is in center-pole
Outside, and annular space is formed each other, the upper semisection and lower semisection of the expansion tube pass through middle Taper Pipe transition,
Expansion tube operating room is formed between expansion tube lower semisection and Taper Pipe inside and center-pole outer wall, in expansion tube work indoor location
Expansion cone, the expansion tube lower end union tail variable buckle, built-in large rubber plug in the tail pipe variable buckle.
The expansion tube upper end connects regulation ring, and the large rubber plug bottom sets trustship, and the trustship is temporarily solid by shear pin
Tail pipe change is scheduled on to buckle.
Expansion combination sealing is also set up in the expansion operating room, expansion combination sealing is located at expansion cone bottom, the center
Bar top is connected with the center pull rod of hydraulic pusher, and bottom is connected with expansion combination sealing.
The expansion cone is enclosed within center-pole, is made up of the swollen head of self-regulated pitch circle and swollen crown set, and self-regulated pitch circle is swollen head-shield is swollen
, there is ball type of contact surface crown set upper side between swollen crown set and the swollen head of self-regulated pitch circle.
The expansion pipe outer wall is provided with interval-staggered metallic packing ring, rubber seal tape.
The metallic packing ring is welded in the pregroove marks in expansion pipe outer wall, and rubber seal tape vulcanization is in expansion pipe outer wall
On preset steel frame band.
The cementing assembly is made up of outer barrel, inner cylinder, closing set, interstage sleeve, ball-and-seat, lower top cover, on the outer barrel
Portion is connected with suspension liner small casing, and bottom is connected with ball-and-seat, and inwall is designed with and sets one's teeth on edge, and the outer tube inner wall is set one's teeth on edge
It is engaged with setting one's teeth on edge in point valve lock claw of inner cylinder；The inner cylinder bottom is connected with interstage sleeve, and inner cylinder has what is matched with outer barrel
Cement injecting hole；Set is closed to be fixed in inner cylinder by pin；The lower top cover of ball-and-seat lower end connection, lower top cover bottom is designed with greatly
Chamfering.
In order to reach above-mentioned another object, present invention employs following technical scheme, the expansion of high temperature resistant big orifice hydraulic booster
Hanging method, connects the formula combination metal sealing expanding suspension tubing string that can cement the well first, is driven all using drilling rod or oil pipe
Tubing string one is removed in oil well, under then suppress to casing damage position, direct flushing, anchoring device and hydraulic drive
Device starts feed liquor, after anchoring device grappling, piston driving center-pole and hydraulic pusher outer cylinder sheath in hydraulic pusher
Do relative motion, force the expansion cone in expansion tube operating room to be pressed into, the expansion combination sealing after expansion cone ensures expanded
Sealing in journey, subsequent expansion tube be squeezed section expansion produce permanent plastic deformation, so as to tightly be anchored on internal surface of sleeve pipe
On, while the soft metal sealing ring extrusion on the outside of expansion tube, seals annular space, reach to sleeve pipe closure
Purpose, the upper end of hydraulic pusher is designed with pressure relief device, is played after the completion of a stroke or expanding suspension is completed and let out
Press the effect of protection.
If liner casing part is connected into cementing assembly, after casing damage position is entered under tubing string, after the abundant well-flushing of direct circulation,
The mud amount according to needed for actual calculating well cementation, injects cement mortar, by the cement injecting hole on the outer barrel and inner cylinder of cementing assembly
Circulation cement, carry out well cementation closure, discharge afterwards small plug for slurry, into large rubber plug in set, cut short pin, large rubber plug
Continue traveling downwardly and closed in set until setting, cut short pin, drive is closed and covered until at interstage sleeve, closing cement injecting hole, completion
Shave the effect of cement in tubing string.Hou Ning 48-72 hours, tubing string is proposed, bore and remove large rubber plug and small plug, complete suspension
Liner small casing and block the reparation purpose of well cementation
Compared to prior art, the invention has the advantages that：
High temperature resistant big orifice combine metal sealing expanding suspension instrument by anchoring device, hydraulic feed device, expansion assembly and
A few part compositions such as well cementation assembly.Before construction, by anchoring device, hydraulic feed device and expansion assembly and the liner for hanging
Sleeve pipe connection is good.Implementation method of the present invention：During construction, whole tubing strings one are driven to remove into oil first with drilling rod or oil pipe
Precalculated position is reached in well.Instrument direct flushing and then is suppressed after in place, piston driving center pull rod and piston outer cylinder sheath
Do relative motion, force the swollen head of expansion tube bottom pyramidal to be pressed into, swollen head is produced radial dilatation, expansion in very short time
The pipe section expansion that is squeezed produces permanent plastic deformation, so as to tightly be anchored on internal surface of sleeve pipe, while expansion tube is outer multigroup
Combination shape metallic leak-proof structure, seals the annular space of expansion tube both sides, reaches the purpose of suspension liner sleeve pipe.If outstanding
Well cementation assembly is connected after hanging sleeve pipe, cementing hydraulic selector is opened, cement is circulated, well cementation closure is carried out, enters plug down afterwards,
Cement is replaced, Hou Ning proposes tubing string, bores and remove plug, reaches reparation purpose.
1. multigroup metallic combination sealing means, corrosion-and high-temp-resistant are used, and sealing knot and area are big, good sealing effect,
Suspension force is big；2. hung using bulged tube technology, it is ensured that large-sized interior latus rectum, it is convenient follow-up under enter point to adopt point
Note tubing string；3. expansion power is produced using hydraulic force increasing device, it is safe and efficient；4. after suspension internal lining pipe, water filling can be carried out
Mudding is consolidated, and increased Service Life of Casing, improves the applicability of the technique；5. can be to any local sleeve pipe Sun Huan and water
Mud ring failure site is repaired, and technological operation is simple, and clean-out crew can construct, to well depth and temperature without strict limitation,
It is practical, there is important effect to the economic benefit of reparation casing damaged well, raising oil field, with preferable promotion prospect.
Brief description of the drawings
Fig. 1 is the structural representation of high temperature resistant big orifice hydraulic booster expanding suspension instrument of the invention；
Fig. 2 is the structure chart for expanding assembly；
Fig. 3 is the structure chart of cementing assembly；
Fig. 4 is small plug structure chart；
Fig. 5 is large rubber plug structure chart；
Fig. 6 is small plug into setting schematic diagram after large rubber plug.
In figure：Damaged sleeve pipe 1, anchoring device 2, hydraulic pusher 3, expansion assembly 4, hang small casing 5, water filling
Mud assembly 6, small plug 7, large rubber plug 8；
Center-pole 4.1, regulation ring 4.2, expansion tube 4.3, rubber seal tape 4.4, metallic packing ring 4.5, center-pole
Box cupling 4.6, expansion cone 4.7, expansion combination sealing 4.8, tail pipe variable buckle 4.9；Expansion tube operating room 4.3.1, self-regulation
Round swollen head 4.7.1, the swollen crown cover 4.7.2；
Outer barrel 6.1, inner cylinder 6.2, closing set 6.3, pin 6.4, interstage sleeve 6.5, ball-and-seat 6.7, lower top cover 6.8.
Specific embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides and refers to and say
It is bright to be used, not for being any limitation as to the present invention.
According to Fig. 1, Fig. 4, Fig. 5, high temperature resistant big orifice combination metal sealing expanding suspension tubing string is included in damaged sleeve pipe
Anchoring device 2, hydraulic pusher 3, the expansion assembly 4 being sequentially connected from top to bottom in 1, hang small casing 5, cementing
Assembly 6, large rubber plug 8 is built in expansion assembly, the small plug, from central tube input after cement mortar is injected, is entered
Set inside large rubber plug, drive the descending closing cementing switch of large rubber plug；Size plug collective effect, completes to shave in pipe
The effect of cement.
Refer to the attached drawing 2, expansion assembly 4 is by center-pole 4.1, regulation ring 4.2, expansion tube 4.3, expansion cone 4.7, swollen
Swollen combination sealing 4.8, tail pipe variable buckle 4.9 and built-in large rubber plug 8 are constituted, center-pole 4.1 can according to actual conditions,
Extended by center-pole box cupling 4.6, the top of center-pole 4.1 is connected with the center pull rod of hydraulic pusher 3, bottom with it is swollen
Swollen combination sealing 4.8 is connected；The top of regulation ring 4.2 is connected with the outer cylinder sheath of hydraulic pusher 3, bottom insertion expansion tube 4.3
It is internal；It is combination metal sealing device on the outer wall of expansion tube 4.3, structure is metallic packing ring 4.5, is welded on expansion tube
In pregroove marks on 4.3 outer walls, rubber seal tape 4.4 vulcanizes in preset steel frame band, and the soft metal with front end seals
Ring 4.5 constitutes multigroup sealing structure together, and the quantity of metallic packing ring 4.5 and rubber seal tape 4.4 can be by expansion pipe
Body length is determined；Expansion operating room 4.3.1 is arranged at the bottom of expansion tube 4.3, has expansion cone 4.7 inside expansion operating room 4.3.1,
Expansion cone 4.7 is enclosed within center-pole 4.1, is made up of the swollen head 4.7.1 of self-regulated pitch circle and swollen crown set 4.7.2, the swollen crown
There is ball type of contact surface between set and the swollen head of self-regulated pitch circle；Expansion is provided between center-pole 4.1 and expansion inside pipe wall combine close
Envelope 4.8；The bottom of expansion tube 4.3 is connected with tail pipe variable buckle 4.9, and large rubber plug 8 passes through the built-in fixation of pin 4.10 and tail pipe
In variable buckle 4.9, tail pipe variable buckle bottom is connected with the liner small casing 5 of suspension.
Refer to the attached drawing 3, cementing assembly 6 is by outer barrel 6.1, inner cylinder 6.2, closing set 6.3, interstage sleeve 6.5, ball-and-seat
6.7 and lower top cover 6.8 constitute；The top of outer barrel 6.1 is connected with suspension liner small casing 5, and bottom is connected with ball-and-seat 6.7,
And inwall is designed with and sets one's teeth on edge, it is engaged with setting one's teeth on edge in point valve lock claw of inner cylinder 6.2；The bottom of inner cylinder 6.2 and interstage sleeve 6.5
Connection, inner cylinder 6.2 has the cement injecting hole for matching with outer barrel 6.1；Close set 6.3 and inner cylinder 6.2 is fixed on by pin 6.4
It is interior；The lower bottom of top cover 6.8 is designed with big chamfering.
During construction, the formula combination metal sealing expanding suspension tubing string that can cement the well is connected first, driven using drilling rod or oil pipe complete
Portion's tubing string one is removed in oil well, under then suppress to casing damage position, direct flushing, anchoring device 2 and hydraulic pressure
Propeller 3 starts feed liquor, after 2 grappling of anchoring device, piston driving center-pole 4.1 and liquid in hydraulic pusher 3
The pressure outer cylinder sheath of propeller 3 does relative motion, and forces the expansion cone 4.7 in expansion tube operating room 4.3.1 to be pressed into, expansion cone
Expansion combination sealing 4.8 after 4.7 ensures the sealing in expansion process, and in very short time, expansion tube 4.3 is squeezed section
Expansion produces permanent plastic deformation, so that be tightly anchored on the inwall of sleeve pipe 1, while the soft metal on the outside of expansion tube is close
The extrusion of seal ring 4.5, seals annular space, reaches the purpose to sleeve pipe closure, the upper end of hydraulic pusher 3
Pressure relief device is designed with, decompression protection is played a part of after the completion of a stroke or expanding suspension is completed.
If by liner casing part connection cementing assembly 6, after casing damage position is entered under tubing string, the abundant well-flushing of direct circulation
Afterwards, the mud amount according to needed for actual calculating well cementation, injects cement mortar, by the outer barrel 6.1 and inner cylinder of cementing assembly 6
Cement injecting hole circulation cement on 6.1, carries out well cementation closure, and small plug 7 is discharged afterwards for slurry, is set into large rubber plug 8 is interior,
Pin 4.10 is cut short, large rubber plug is continued traveling downwardly and covered in 6.3 until setting closing, cuts short pin 6.4, is driven and is closed set
6.3 until at interstage sleeve 6.5, close cement injecting hole, completion shaves the effect of cement in tubing string.Hou Ning 48-72 hours, propose
Tubing string, bores and removes small, large rubber plug 7,8, completes suspension liner small casing and blocks the reparation purpose of well cementation.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the invention, other are with this hair
The equivalence changes of bright patent spirit, all should all belong to the scope of the claims of the invention.
Claims (10)
1. high temperature resistant big orifice hydraulic booster expanding suspension instrument, it is characterised in that including the grappling dress being sequentially connected from top to bottom
Put, hydraulic pusher, expansion assembly, suspension small casing, cementing assembly, large rubber plug, small plug, the expansion is total
Into internal built-in large rubber plug, the small plug after cement mortar is injected from central tube input, into large rubber plug inside set,
Drive the descending closing cementing switch of large rubber plug.
2. high temperature resistant big orifice hydraulic booster expanding suspension instrument according to claim 1, it is characterised in that the expansion
Assembly includes center-pole, expansion tube, expansion cone, tail pipe variable buckle, and the expansion tube empty set is outside center-pole, and phase
Annular space is formed between mutually, the upper semisection and lower semisection of the expansion tube pass through middle Taper Pipe transition, in expansion tube lower semisection
Expansion tube operating room is formed between inwall and Taper Pipe inwall and center-pole outer wall, in expansion tube work indoor location expansion cone,
The expansion tube lower end union tail variable buckle, built-in large rubber plug in the tail pipe variable buckle.
3. high temperature resistant big orifice hydraulic booster expanding suspension instrument according to claim 2, it is characterised in that the expansion
Pipe upper end connects regulation ring, and the large rubber plug bottom sets trustship, and the trustship is temporarily fixed to tail pipe variable buckle by shear pin
On.
4. high temperature resistant big orifice hydraulic booster expanding suspension instrument according to claim 2, it is characterised in that the expansion
Expansion combination sealing is also set up in operating room, expansion combination sealing is located at expansion cone bottom, the center-pole top and hydraulic pressure
The center pull rod connection of propeller, bottom is connected with expansion combination sealing.
5. high temperature resistant big orifice hydraulic booster expanding suspension instrument according to claim 2, it is characterised in that the expansion
Tapered sleeve is made up of on center-pole the swollen head of self-regulated pitch circle and swollen crown set, self-regulated pitch circle is swollen head-shield in swollen crown set upper side,
There is ball type of contact surface between swollen crown set and the swollen head of self-regulated pitch circle.
6. high temperature resistant big orifice hydraulic booster expanding suspension instrument according to claim 2, it is characterised in that the expansion
Pipe outer wall is provided with interval-staggered metallic packing ring, rubber seal tape.
7. high temperature resistant big orifice hydraulic booster expanding suspension instrument according to claim 6, it is characterised in that the metal
Sealing ring is welded in the pregroove marks in expansion pipe outer wall, the preset rigidity bone in expansion pipe outer wall of rubber seal tape vulcanization
Frame takes.
8. high temperature resistant big orifice hydraulic booster expanding suspension instrument according to claim 1, it is characterised in that the water filling
Mud assembly by outer barrel, inner cylinder, close set, interstage sleeve, ball-and-seat, lower top cover and constitute, the outer barrel top with hang liner
Small casing is connected, and bottom is connected with ball-and-seat, and inwall is designed with and sets one's teeth on edge, point valve set one's teeth on edge with inner cylinder of the outer tube inner wall
Setting one's teeth on edge in lock claw is engaged；The inner cylinder bottom is connected with interstage sleeve, and inner cylinder has the cement injecting hole for matching with outer barrel；Close
Set is fixed in inner cylinder by pin；The lower top cover of ball-and-seat lower end connection, lower top cover bottom is designed with big chamfering.
9. high temperature resistant big orifice hydraulic booster expanding suspension method, it is characterised in that connect the formula combination metal that can cement the well first close
Envelope expanding suspension tubing string, drives whole tubing strings one to remove in oil well using drilling rod or oil pipe, under to casing damage position,
Then direct flushing is suppressed, and anchoring device and hydraulic pusher start feed liquor, after anchoring device grappling, hydraulic drive
Piston driving center-pole in device does relative motion with hydraulic pusher outer cylinder sheath, forces the expansion cone in expansion tube operating room
Press-in, after expansion cone expansion combination sealing ensure expansion process in sealing, subsequent expansion tube be squeezed section expansion produce
Permanent plastic deformation, so that be tightly anchored on internal surface of sleeve pipe, while the soft metal sealing ring on the outside of expansion tube is squeezed
Deformation, seals annular space, reaches the purpose to sleeve pipe closure, and the upper end of hydraulic pusher is designed with pressure relief device,
Play a part of decompression protection after the completion of a stroke or expanding suspension is completed.
10. high temperature resistant big orifice hydraulic booster expanding suspension method according to claim 9, it is characterised in that if will
Liner casing part connects cementing assembly, after casing damage position is entered under tubing string, after the abundant well-flushing of direct circulation, according to reality
Border calculates mud amount needed for well cementation, cement mortar is injected, by the cement injecting hole recirculated water on the outer barrel and inner cylinder of cementing assembly
Mud, carries out well cementation closure, and small plug is discharged afterwards for slurry, into large rubber plug in set, pin is cut short, under large rubber plug continues
Row covers interior until setting closing, cuts short pin, drives and closes set at interstage sleeve, and closing cement injecting hole completes to shave pipe
The effect of cement in post.Hou Ning 48-72 hours, tubing string is proposed, bore and remove large rubber plug and small plug, complete the suspension small set of liner
Manage and block the reparation purpose of well cementation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836407.2A CN106801589A (en) | 2015-11-26 | 2015-11-26 | High temperature resistant big orifice hydraulic booster expanding suspension instrument and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836407.2A CN106801589A (en) | 2015-11-26 | 2015-11-26 | High temperature resistant big orifice hydraulic booster expanding suspension instrument and method |
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| CN106801589A true CN106801589A (en) | 2017-06-06 |
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| CN201510836407.2A Pending CN106801589A (en) | 2015-11-26 | 2015-11-26 | High temperature resistant big orifice hydraulic booster expanding suspension instrument and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837605A (en) * | 2022-05-31 | 2022-08-02 | 中国石油化工股份有限公司 | Oil increasing method for casing damage well free of hole repairing suspension |
| CN115012872A (en) * | 2021-03-05 | 2022-09-06 | 中国石油天然气集团有限公司 | Packer and method for manufacturing packer |
| CN115217432A (en) * | 2022-05-31 | 2022-10-21 | 中国石油化工股份有限公司 | Long well section subsidy reinforcing apparatus |
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| CN201152157Y (en) * | 2007-11-16 | 2008-11-19 | 中国石油大学(华东) | Oil water well hydraulic expanding pipe shaping and rehabilitating tool |
| CN201991473U (en) * | 2011-03-23 | 2011-09-28 | 中国石油化工股份有限公司 | Casing suspension device for well repair |
| CN202360054U (en) * | 2011-10-21 | 2012-08-01 | 中国石油化工股份有限公司 | Correcting and repairing integrated tool for casing-broken horizontal wells |
| US20140054047A1 (en) * | 2012-08-27 | 2014-02-27 | Saudi Arabian Oil Company | Expandable liner hanger and method of use |
| CN205243458U (en) * | 2015-11-26 | 2016-05-18 | 中国石油化工股份有限公司 | High temperature resistant big latus rectum hydraulic pressure reinforcement inflation hangs instrument |
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| CN115012872A (en) * | 2021-03-05 | 2022-09-06 | 中国石油天然气集团有限公司 | Packer and method for manufacturing packer |
| CN114837605A (en) * | 2022-05-31 | 2022-08-02 | 中国石油化工股份有限公司 | Oil increasing method for casing damage well free of hole repairing suspension |
| CN115217432A (en) * | 2022-05-31 | 2022-10-21 | 中国石油化工股份有限公司 | Long well section subsidy reinforcing apparatus |
| CN114837605B (en) * | 2022-05-31 | 2024-05-03 | 中国石油化工股份有限公司 | Oil increasing method for casing damage well hole-repairing-free suspension |
| CN115217432B (en) * | 2022-05-31 | 2024-05-17 | 中国石油化工股份有限公司 | Reinforcing apparatus is mended to long well section |
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