CN106812505A - Thin-walled expansion pipe device and its operational method - Google Patents
Thin-walled expansion pipe device and its operational method Download PDFInfo
- Publication number
- CN106812505A CN106812505A CN201710083641.1A CN201710083641A CN106812505A CN 106812505 A CN106812505 A CN 106812505A CN 201710083641 A CN201710083641 A CN 201710083641A CN 106812505 A CN106812505 A CN 106812505A
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- fluid cylinder
- thin
- central tube
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 95
- 239000012530 fluid Substances 0.000 claims abstract description 62
- 238000004873 anchoring Methods 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000010720 hydraulic oil Substances 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
- E21B43/105—Expanding tools specially adapted therefor
-
- 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
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- 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
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to thin-walled expansion pipe device and its operational method, petroleum industry drilling completion, well workover technology field are applied to.The present apparatus includes expansion tube, expansion cone, fluid cylinder mechanism and anchor mechanism, expansion cone arrangement above fluid cylinder mechanism, expansion cone anchor mechanism arranged below；The fluid cylinder set of fluid cylinder mechanism is mutually fixedly connected with expansion cone；Expansion cone is enclosed within to be formed outside the central tube of fluid cylinder mechanism and is slidably connected, and central tube lower end connects anchor mechanism, central tube lower end or connected anchor mechanism lower end closed；Bear ring to be placed in outside expansion tube upper end, its external diameter bears ring set outside central tube and be mutually fixedly connected more than expansion bore.Because with expansion cone be joined directly together hydraulic oil cylinder device by the device, when expansion tube is more long, central tube more than hydraulic oil cylinder device can use working string, reduce manufacturing cost.Meanwhile, when hydraulic oil cylinder device above puies forward expansion cone completes a stroke, decentralization working string can make hydraulic oil cylinder device reset, easy to operate.
Description
Technical field
The present invention relates to petroleum industry drilling completion, well workover technology field, more particularly to thin-walled expansion pipe device and its
Operational method.
Background technology
The Solid expandable Manifold technology for being developed in the nineties in last century has played important in drilling well, completion and well workover technology field
Effect.
Initial bulged tube technology is to promote expansion cone using hydraulic coupling, while being superimposed drilling rod above carrying to expansion cone
Power completes to expand operation.
Chinese patent, application number 201010106783.3, applying date 2010.02.03, " expansion tube assembly, oil well subsidy are applied
Work mechanism and construction method " discloses the device and method that a kind of utilization expansion tube repairs damaged sleeve pipe, and the device is in expansion
The top of pipe sets a set of power cylinder, and expansion cone is set in the bottom of expansion tube, is provided with card again below expansion cone
Detent mechanism is hung, expansion tube is pushed down on the power cylinder top of the device, and the central tube of power cylinder holds downwards card and hangs detent mechanism, leads to
The pulling force for crossing power cylinder pulls up expansion cone and carrys out expansion pipe.Its card hangs detent mechanism and can unidirectionally block central tube,
As expansion cone provides thrust upward, and the demand that the multiple stroke of power cylinder is lifted up can be met again.
The deficiency that above-mentioned bulged tube technology is present is that a, its center-pole are special manufactures, when expansion tube is more long, wherein
Core bar is also correspondingly more long, and manufacturing cost is higher.B, its fluid cylinder reset are difficult, and Ground Operation personnel are difficult to judge fluid cylinder machine
Whether structure has resetted, and operation is inconvenient.
The content of the invention
In order to solve the above technical problems, having invented, manufacturing cost and the convenient thin-walled expansion pipe device of operation can be reduced.
To achieve the above object, the present invention is adopted the following technical scheme that：
Thin-walled expansion pipe device, including expansion tube, expansion cone, fluid cylinder mechanism and anchor mechanism, expansion cone arrangement above fluid cylinder machine
Structure, expansion cone anchor mechanism arranged below；The fluid cylinder set of fluid cylinder mechanism is mutually fixedly connected with expansion cone；Expansion cone is enclosed within fluid cylinder machine
Formed outside the central tube of structure and be slidably connected, central tube lower end connects anchor mechanism, central tube lower end or connected grappling machine
Structure lower end closed；Bear ring to be placed in outside expansion tube upper end, its external diameter bears ring set central tube is outer and phase more than expansion bore
It is fixedly connected.
Preferably, described anchor mechanism is slips anchoring mechanism, and described slips anchoring mechanism is "T"-shaped slot type slips
Anchor mechanism.Described slips anchoring mechanism can also be slips brake pad integral type slips anchoring mechanism.
Preferably, described anchor mechanism can also be hydraulic anchor anchor mechanism.
The operational method of thin-walled expansion pipe device, it is using the thin-walled expansion pipe device including described in, its job step,
A, with working string under thin-walled expansion pipe device to well in down-hole casing rent or bore hole；
B, working string upper end are connected with the hydraulic pump on ground；
C, startup hydraulic pump raise the hydraulic coupling in thin-walled expansion pipe device central tube, promote the up expansion of expansion cone
Pipe, fluid cylinder mechanism completes a up stroke；
D, stopping hydraulic pump, shed the hydraulic coupling in thin-walled expansion pipe device central tube；
E, above carry working string and make the up stroke of fluid cylinder mechanism；
F, repeat step c, d, e, until completing the expansion operation of whole expansion tubes.
Technological merit of the invention is that with expansion cone be joined directly together hydraulic oil cylinder device by the device, when expansion tube is more long, fluid cylinder
Central tube more than device can use working string, reduce manufacturing cost.Meanwhile, completed when hydraulic oil cylinder device above puies forward expansion cone
During one stroke, decentralization working string can make hydraulic oil cylinder device reset, easy to operate.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by referring to following detailed description, can more completely more fully understand the present invention with
And the adjoint advantage of many of which is easily learnt, but accompanying drawing described herein is used for providing a further understanding of the present invention,
A part of the invention is constituted, schematic description and description of the invention is used to explain the present invention, does not constitute to this hair
Bright improper restriction, wherein：
Fig. 1 is the structural representation of thin-walled expansion pipe device, and the fluid cylinder mechanism in figure is one-level fluid cylinder, and anchor mechanism is slips anchor
Determine mechanism.
Fig. 2 is the structural representation of thin-walled expansion pipe device, and the fluid cylinder mechanism in figure is two grades of fluid cylinders, and anchor mechanism is card
Watt anchor mechanism.
Fig. 3 is the structural representation of thin-walled expansion pipe device, and the anchor mechanism in figure is hydraulic anchor anchor mechanism.
Fig. 4 is the structural representation of thin-walled expansion pipe device, it is illustrated that anchor mechanism enters the state in expansion tube.
Fig. 5 is the structural representation of "T"-shaped slot type slips anchoring mechanism.
Fig. 6 is slips brake pad integral type slips anchoring mechanism structure schematic diagram.
Fig. 7 is the structural representation of hydraulic anchor.
Specific embodiment
In the narration explanation of this specification, described upper and lower position relation is identical with the position relationship illustrated in accompanying drawing,
This is also the mutual alignment relation between each component of the instrument of the invention when being applied in straight well.
As shown in Figure 1, thin-walled expansion pipe device, central tube 1, fluid cylinder set 4 and piston 5 collectively form fluid cylinder mechanism 20.Institute
The fluid cylinder mechanism 20 for stating, its peripheral hardware fluid cylinder of central tube 1 covers 4 and piston 5, and wherein piston 5 is mutually fixed with central tube 1 and sealing connects
Connect, fluid cylinder set 4 socket-connects with central tube 1 and forms the first sliding sealing surface, fluid cylinder set 4 and piston 5 socket-connect and form second
There is diameter difference in sliding sealing surface, the first sliding sealing surface and the second sliding sealing surface, in center between fluid cylinder set 4 and piston 5
Inlet opening 14 is set on the side wall of pipe 1；
The lower end peripheral hardware expansion cone 6 of expansion tube 3, in setting fluid cylinder mechanism 20 in expansion tube, expansion cone 6 is dividing into anchor for expansion cone more than 6
Determine mechanism 30.
Expansion cone 6 is enclosed within outside the central tube 1 of fluid cylinder mechanism 20, can be slided up and down, and formation is slidably connected.Fluid cylinder set 4 with it is swollen
Swollen cone 6 is mutually fixedly connected；
The lower end of central tube 1 is mutually fixedly connected with anchor mechanism 30.
Ring 2 is born to be placed in outside the upper end of expansion tube 3, its external diameter more than expansion bore, bear ring 2 be enclosed within central tube 1 it is outer and
Mutually it is fixedly connected.
In order to be discharged beneficial to liquid, the fluid cylinder in piston below 5 to cover and can also set out fluid apertures 13 on 4 side walls.
In order to ensure that enough hydraulic couplings are produced in central tube, central tube lower end should be closed, naturally it is also possible to be and central tube
The lower center tube 12 of connected anchor mechanism is closed.
Being mutually fixedly connected herein and described in the other parts of this specification, can be threadedly coupled, or weld
Connect；Described mutually fixes and is tightly connected, and can be sealing threaded connection, such as petroleum oil screw thread, can also be non-tight spiral shell
Line encryption seal connection, or welding.
As shown in Figure 5, described anchor mechanism 30 is slips anchoring mechanism.Described slips anchoring mechanism is "T"-shaped groove
Formula slips anchoring mechanism, this is a kind of anchor mechanism commonly used in the type of oil field well 211 or 221 type packers, also referred to as " swallow
Stern notch " formula slips anchoring mechanism, including lower center tube 12, grappling cone 7, slips 8, slips support 9, spring 10 and gear cap 11, grappling
Cone 7, slips support 9, spring 10 and gear cap 11 are sequentially socketed in outside lower center tube 12 from top to bottom, wherein, 7 and gear cap 11 are bored in grappling
Also mutually it is fixedly connected with lower center tube；"T"-shaped groove is all provided with grappling cone 7 and slips support 9, slips 8 is arranged on described "T"-shaped groove
In.Described spring 10 can be disc spring or cylindroid helical-coil compression spring.
As shown in Figure 6, described slips anchoring mechanism can also be slips brake pad integral type slips anchoring mechanism, this
It is another anchor mechanism commonly used in the type of oil field well 211 or 221 type packers.As shown in fig. 6, slips brake pad is integrally
Formula slips anchoring mechanism includes lower center tube 12, cone 61, friction slips 62, snap ring 63, little spring 64, slips collet 65 and gear
Ring 66.Cone 61, slips collet 65 and baffle ring 66 are sequentially enclosed within outside lower center tube 12 from top to bottom, and cone 61 and baffle ring 66
Also mutually it is fixedly connected with lower center tube 12；It is " J " shape endless groove that slips collet 65 sets section, and friction slips 62 lower end is arranged on institute
In " J " the shape endless groove stated, little spring 64 is transversely mounted between friction slips 62 and slips collet 65, and snap ring 63 is enclosed within friction
The periphery of slips 62.
As shown in Figure 3, described anchor mechanism 30 can also be hydraulic anchor anchor mechanism.Hydraulic anchor is that oil field well is commonly used
One of instrument, as shown in Figure 7.When using hydraulic anchor anchor mechanism, in order that fluid cylinder mechanism and hydraulic anchor are obtained simultaneously
Hydraulic coupling, should close hydraulic anchor bottom.
Shown in Fig. 1 is by one-level fluid cylinder set and the single-stage fluid cylinder mechanism that constitutes of first stage piston, fluid cylinder mechanism can be by
The Multi-stage hydraulic cylinder mechanism that Multi-stage hydraulic cylinder is covered and multi-level piston is constituted.As shown in Figure 2, accompanying drawing 2 illustrates two grades of fluid cylinder mechanisms,
Linked together including 202,1 grades of fluid cylinder sets of one-level fluid cylinder mechanism 201 and two grades of fluid cylinder mechanisms, other nexus elements and list
Level fluid cylinder mechanism is identical.The connected mode of fluid cylinder mechanism more than three-level is identical with the connected mode of two grades of fluid cylinder mechanisms.
As shown in Fig. 1 and Fig. 4, expansion cone is initially positioned under expansion tube, and fluid cylinder mechanism starts in the presence of hydraulic coupling
In first stroke, fluid cylinder mechanism is drop-down to bear ring, above puies forward expansion cone, is stuck in expansion tube upper end thus keeps not due to bearing ring
Dynamic, expansion cone is just drawn into expansion tube so as to expansion pipe diameter be swollen.Then, working string is above carried, fluid cylinder mechanism is answered
Position, starts second stroke.In second stroke, anchor mechanism is pushed away under fluid cylinder mechanism makes it be anchored on guarantor on expansion inside pipe wall
Hold motionless, while above carrying expansion cone expansion pipe, complete second stroke, repeat the second stroke and make to whole expansion tubes are completed
Industry.
Thin-walled expansion pipe device is connected by central tube with working string.Its job step is：
A, with working string under thin-walled expansion pipe device to well in down-hole casing rent or bore hole；
B, working string upper end are connected with the hydraulic pump on ground；
C, startup hydraulic pump raise the hydraulic coupling in thin-walled expansion pipe device central tube, promote the up expansion of expansion cone
Pipe, fluid cylinder mechanism completes a up stroke；
D, stopping hydraulic pump, shed the hydraulic coupling in thin-walled expansion pipe device central tube；
E, above carry working string and make the up stroke of fluid cylinder mechanism；
F, repeat step c, d, e, until completing the expansion operation of whole expansion tubes.
Obviously, those skilled in the art belong to guarantor of the invention based on many modifications and variations that spirit of the invention is done
Shield scope.
Claims (10)
1. thin-walled expansion pipe device, including expansion tube（3）, expansion cone（6）, fluid cylinder mechanism（20）And anchor mechanism（30）, it is special
Levy and be, expansion cone（6）Arrangement above fluid cylinder mechanism（20）, expansion cone（6）Anchor mechanism arranged below（30）；Fluid cylinder mechanism
Fluid cylinder set（4）With expansion cone（6）Mutually it is fixedly connected；Expansion cone（6）It is enclosed within the central tube of fluid cylinder mechanism（1）It is outer to form the company of slip
Connect, central tube（1）Lower end connects anchor mechanism（30）, central tube（1）Lower end or connected anchor mechanism lower end closed；Hold
Draw ring（2）It is placed in expansion tube（3）Outside upper end, its external diameter bears ring more than expansion bore（2）It is enclosed within central tube（1）Outer and phase
It is fixedly connected.
2. thin-walled expansion pipe device according to claim 1, it is characterised in that described anchor mechanism（30）It is slips anchor
Determine mechanism.
3. thin-walled expansion pipe device according to claim 2, it is characterised in that described slips anchoring mechanism is "T"-shaped
Slot type slips anchoring mechanism, including lower center tube（12）, grappling cone（7）, slips（8）, slips support（9）, spring（10）With gear cap
（11）, grappling cone（7）, slips support（9）, spring（10）With gear cap（11）Lower center tube is sequentially socketed in from top to bottom（12）Outward,
Wherein, grappling cone（7）With gear cap（11）Also mutually it is fixedly connected with lower center tube；Grappling is bored（7）With slips support（9）On be all provided with " T "
Shape groove, slips（8）In described "T"-shaped groove.
4. thin-walled expansion pipe device according to claim 3, it is characterised in that described spring（10）It is disc spring or cylinder
Spiral compression spring.
5. thin-walled expansion pipe device according to claim 2, it is characterised in that described slips anchoring mechanism rubs for slips
Cleaning block integral type slips anchoring mechanism, including lower center tube（12）, cone（61）, friction slips（62）, snap ring（63）, little spring
（64）, slips collet（65）And baffle ring（66）, cone（61）, slips collet（65）And baffle ring（66）Sequentially it is enclosed within down from top to bottom
Central tube（12）Outward, and cone（61）And baffle ring（66）Also mutually it is fixedly connected with lower center tube；Slips collet（65）If section is
" J " shape endless groove, rub slips（62）Lower end is arranged in described " J " shape endless groove, little spring（64）It is transversely mounted on and rubs
Wipe slips（62）With slips collet（65）Between, snap ring（63）It is enclosed within friction slips（62）Periphery.
6. thin-walled expansion pipe device according to claim 1, it is characterised in that described anchor mechanism（30）It is hydraulic anchor
Anchor mechanism.
7. thin-walled expansion pipe device according to claim 1, it is characterised in that described fluid cylinder mechanism（20）By central tube
（1）, fluid cylinder set（4）And piston（5）Collectively form, central tube（1）Peripheral hardware fluid cylinder set（4）And piston（5）, wherein piston（5）With
Central tube（1）Mutually fix and be tightly connected, fluid cylinder set（4）With central tube（1）Socket-connect and formed the first sliding sealing surface, fluid cylinder
Set（4）With piston（5）The second sliding sealing surface is socket-connected and is formed, the first sliding sealing surface and the second sliding sealing surface exist straight
Footpath is poor, fluid cylinder set（4）And piston（5）Between in central tube（1）Inlet opening is set on the wall of side（14）.
8. thin-walled expansion pipe device according to claim 7, it is characterised in that described fluid cylinder mechanism（20）Two-stage with
On.
9. the operational method of thin-walled expansion pipe device, it is characterised in that it is using including claim 1 to 8 any claim
Described thin-walled expansion pipe device.
10. the operational method of thin-walled expansion pipe device according to claim 7, it is characterised in that its job step is,
A, with working string under thin-walled expansion pipe device to well in down-hole casing rent or bore hole；
B, working string upper end are connected with the hydraulic pump on ground；
C, startup hydraulic pump raise the hydraulic coupling in thin-walled expansion pipe device central tube, promote the up expansion of expansion cone
Pipe, fluid cylinder mechanism completes a up stroke；
D, stopping hydraulic pump, shed the hydraulic coupling in thin-walled expansion pipe device central tube；
E, above carry working string and make the up stroke of fluid cylinder mechanism；
F, repeat step c, d, e, until completing the expansion operation of whole expansion tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083641.1A CN106812505B (en) | 2017-02-16 | 2017-02-16 | Thin-wall expansion pipe device and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083641.1A CN106812505B (en) | 2017-02-16 | 2017-02-16 | Thin-wall expansion pipe device and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812505A true CN106812505A (en) | 2017-06-09 |
| CN106812505B CN106812505B (en) | 2023-12-29 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083641.1A Active CN106812505B (en) | 2017-02-16 | 2017-02-16 | Thin-wall expansion pipe device and operation method thereof |
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Cited By (2)
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| CN107288573A (en) * | 2017-07-18 | 2017-10-24 | 中国石油化工股份有限公司 | Automatic hydraulic expands guard system and its operating method |
| CN111577218A (en) * | 2020-04-28 | 2020-08-25 | 大庆长垣能源科技有限公司 | Short-radius and ultrashort-radius horizontal well completion process |
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|---|---|
| CN106812505B (en) | 2023-12-29 |
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