CN108240188A - Wait the skeleton anchor mechanism of hole diameters expansion sleeve - Google Patents
Wait the skeleton anchor mechanism of hole diameters expansion sleeve Download PDFInfo
- Publication number
- CN108240188A CN108240188A CN201611210507.5A CN201611210507A CN108240188A CN 108240188 A CN108240188 A CN 108240188A CN 201611210507 A CN201611210507 A CN 201611210507A CN 108240188 A CN108240188 A CN 108240188A
- Authority
- CN
- China
- Prior art keywords
- skeleton
- ontology
- piston
- fluid cylinder
- expansion sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000003839 salts Chemical class 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
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
Landscapes
- 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 waits the skeleton anchor mechanism of hole diameters expansion sleeve to be a kind of, including top connection, ontology, fluid cylinder, piston, skeleton, helmet and lower contact, wherein：Ontology is hollow cylindrical structure, fluid cylinder is located at body upper part, piston is located in the toroidal cavity of fluid cylinder and ontology composition, piston inside and outside wall slides axially with ontology and fluid cylinder composition respectively and seals cooperation, it is fixedly connected between piston and fluid cylinder by shear pin, radial direction inlet opening is equipped on the ontology of top land, helmet is fixedly connected on lower contact top, skeleton is expanding structure, skeleton is set in body exterior, skeleton upper and lower side docks respectively with piston and helmet, and thrust ring is set in skeleton upper end.For the anchor mechanism of the present invention under action of hydraulic force, piston pushes skeleton downlink, squeezes skeleton radial deformation, inside and outside V-groove gradually tight close, outer diameter increases in the middle part of skeleton, and the steel nail wedging stratum on skeleton gives up for tubing string inside and outside grade hole diameters expansion sleeve system and provides enough anchorage forces.
Description
Technical field
The present invention waits the skeleton anchor mechanism of hole diameters expansion sleeve to be a kind of, for hole diameters expansion sleeve operations such as auxiliary
Kit, be related to oil drilling completion field.
Background technology
Hole diameters expansion sleeves is waited to bore completion technique as world expansion sleeve technology and the developing direction of casing programme, it can be with
It realizes to lose without internal diameter and creep into, well solve the problems such as completion size that decrement formula casing programme is brought is small, do not sacrificing well
Eye diameter dimension under the premise of complicated interval is blocked, will etc. hole diameters expansion sleeve without internal diameter lose ground tieback to higher level cover
Pipe, so as to continue to creep into using the drill bit with size.Drilling equipment and the drilling tool brill compared with small dimension can be used in the technology
Up to deeper target zone, standardize drilling program, can significantly drop low environmental impact, reduces the materials such as mud, casing and cement
Consumption.In addition, hole diameters technology is waited also can to insulate unstable Reservoir Section used in barefoot interval as a kind of emergency preplan, such as
Activating shale, salt deposit and low fracture gradient stratum etc., not only maintain borehole size, but also avoid blocking entire interval；Also may be used simultaneously
Cooperation carries out the construction of multilateral well and smart well, promotes the development of multilateral well and smart well technology.
Since hole diameters expansion sleeve deformation rate being waited to be much larger than common expansion tube, it is contemplated that it can be in the case where upper strata casing be smooth
Enter, and diameter need to be consistent with upper strata casing in inflated tube body, therefore, used expansion cone must use reducing
Mode.Patent ZL200920158007.0 discloses a kind of umbrella type variable diameter expansion tool, and patent ZL201120421064.0 is public
A kind of folding type diameter-variable expansion tool of cloth, no matter using which kind of reducing mode, expansion cone is both needed to complete reducing in underground to move
Make, after this split structure completes reducing closure under action of hydraulic force, it is difficult to which being closed becomes a complete Solid expandable
Tool can not be realized and be fully sealed between each cone piece, result in waiting the hole diameters expansion later stage in this way, tube body exit due to
Effective hydraulic coupling can not be provided and the final hole diameters that wait cannot be completed and expanded, so as to realize that inside and outside tubing string is reliable and effective
It gives up.
Invention content
The purpose of the present invention is in view of the above-mentioned problems, develop a kind of skeleton anchor mechanism of hole diameters expansion sleeve of Denging,
The device, which is located at, waits hole diameters expansion sleeve system bottom, can be anchored with stratum, provides mechanical force by above carrying interior tubing string, assists liquid
Pressure completes the expansion process in tube body exit, and inside and outside guarantee system tubing string is effectively given up.
The present invention wait the skeleton anchor mechanism of hole diameters expansion sleeve, including top connection 1, ontology 2, fluid cylinder 3, piston 4,
Skeleton 6, helmet 7 and lower contact 8, wherein：Ontology 2 is hollow cylindrical structure, and top connection 1 and lower contact 8 are put respectively at this
The upper and lower ends of body 2, fluid cylinder 3 are located at 2 top of ontology, and piston 4 is located in the toroidal cavity that fluid cylinder 3 and ontology 2 form, piston 4
Inside and outside wall slides axially with ontology 2 and the composition of fluid cylinder 3 respectively and seals cooperation, solid by shear pin 9 between piston 4 and fluid cylinder 3
Fixed connection is equipped with radial direction inlet opening 15 on the ontology 2 at 4 top of piston, and helmet 7 is fixedly connected on 8 top of lower contact, skeleton 6
For expanding structure, skeleton 6 is set in outside ontology 2, and 6 upper and lower side of skeleton docks respectively with piston 4 and helmet 7, in 6 upper end of skeleton
Thrust ring 5 is set in portion, thrust ring 5 is elastic baffle ring, and the pawl limiting processed on thrust ring 5 and ontology 2 coordinates.
Said program further includes：
Skeleton 6 is multiple-piece composite structure made of softer metals, and 6 inside and outside wall of skeleton along the circumferential direction opens up 2-4 V respectively
Type groove 14.
Ball seat 10 is machined on 2 inner wall of ontology, 6 outer wall of skeleton is embedded with steel nail 12.
Skeleton 6 is 6-10 piece composite structures.
Helmet 7 is connect by screw thread with ontology 2 and skeleton 6, and snap ring 13 is machined between helmet 7 and ontology 2.
The application effect of the present invention is embodied in：After ball sealer reaches ball seat position, liquid enters fluid cylinder by inlet opening
In the annular seal space formed with piston, under action of hydraulic force, piston pushes skeleton downlink, squeezes skeleton radial deformation, inside and outside V-type
Gradually tight close, skeleton middle part outer diameter increase slot, and steel nail enters stratum under skeleton squeezing action, so as to increase anchor mechanism
Anchorage force between stratum.
The advantage of the invention is that：When the mechanism acts on, bore hole inside wall can be close to, above carry for interior tubing string and giving up with outer tubing string
Enough anchorage forces are provided.The strength of materials selected by the mechanism is relatively low, bores and removes convenient for the later stage, after ensureing the expansion of the hole diameters such as completion
Borehole size meets follow-up drilling requirement.
Description of the drawings
The hole diameters such as Fig. 1 expansion sleeve acts on pre-structure schematic diagram with skeleton anchor mechanism
Structure diagram after the hole diameters such as Fig. 2 expansion sleeve is acted on skeleton anchor mechanism
Anchor mechanism sectional view after Fig. 3 is closed
In figure：1 top connection, 2 ontologies, 3 fluid cylinders, 4 pistons, 5 thrust rings, 6 skeletons, 7 helmets, 8 lower contacts, 9 shear pins, 10
Ball seat, 11 ball sealers, 12 steel nails, 13 snap rings, 14 V-grooves, 15 inlet openings.
Specific embodiment
In conjunction with Figure of description, the invention will be further described：
As shown in attached drawing 1, Fig. 2, Fig. 3, a kind of grade skeleton anchor mechanism of hole diameters expansion sleeve according to the present invention, by upper
The components such as connector 1, ontology 2, fluid cylinder 3, piston 4, thrust ring 5, skeleton 6, helmet and lower contact form.2 top of ontology is machined with
Fluid cylinder 3 and piston 4 are machined with shear pin 7 and lock between fluid cylinder 3 and piston 4, between ontology 2 and fluid cylinder 3, piston 4 and fluid cylinder
O-ring seal is mounted between 3 and between piston 4 and ontology 2.Thrust ring 5 is elastic baffle ring, positioned at ontology 2 and skeleton 6
Between, inside is machined with annular pawl, coordinates with the pawl processed on ontology 2, prevents skeleton 6 from shrinking back under external force
Bullet；Skeleton 6 is soft metal material, inside and outside to be circumferentially machined with twice V-groove 14 respectively, helmet 7 by screw thread with
Ontology 2 and skeleton 6 connect, and snap ring 13 is machined between helmet 7 and ontology 2, prevent helmet 6 from disengaging under external force.Ontology 2
Inwall processing has ball seat 10 and inlet opening 15, and skeleton 6 is multiple-piece construction, and outside is embedded with steel nail 12.
The Application Example of the present invention：
As shown in attached drawing 1~3, the present invention is used for when hole diameters expansion sleeve bottom is anchored, and is installed on and is waited hole diameters expansion sleeve piping
Between system and well cementation attachment, with hole diameters expansion sleeve system is waited to connect, lower contact 8 is connected with well cementation attachment for top connection 1.The present invention
During work, ball sealer 11 is put into, after ball sealer 11 reaches 10 position of ball seat, suppressing, which makes liquid pass through inlet opening 15, enters fluid cylinder 3
In the annular seal space formed with piston 4；After pressure reaches to a certain degree, the shear pin 9 between fluid cylinder 3 and piston 4 is cut
It cuts, under action of hydraulic force, promotion 6 downlink of skeleton of piston 4, and 6 lower part of skeleton nothing under the position-limiting action of helmet 7 and snap ring 13
Method moves, then extruding 6 radial deformation of skeleton, and the inside and outside V-groove 14 on skeleton 6 occurs bending under the effect of both sides extruding force and becomes
Shape, gradually tight close, 6 middle part outer diameter of skeleton increase.After the tight 14 closed conjunction of each V-groove, 6 middle part outer diameter of skeleton reaches most
Greatly, it is close to bore hole inside wall, steel nail 12 is squeezed into stratum implementation mechanism anchoring, increases the anchorage force on mechanism and stratum.Hole diameter to be waited
When expansion sleeve system is expanded to top exit position, interior tubing string and expansion tool are above put forward, using mechanical force auxiliary hydraulic pressure power
Mode completes the grade hole diameters expansion process in expansion sleeve exit, then tripping in bores plug tool by anchor mechanism with cementing the well attachment simultaneously
Brill removes, and ensures borehole size requirement needed for follow-up drilling.
Claims (5)
1. a kind of wait the skeleton anchor mechanism of hole diameters expansion sleeve, including top connection [1], ontology [2], fluid cylinder [3], piston
[4], skeleton [6], helmet [7] and lower contact [8], it is characterized in that：Ontology [2] be hollow cylindrical structure, top connection [1] and
The upper and lower ends in ontology [2] are put in lower contact [8] respectively, and fluid cylinder [3] is positioned at ontology [2] top, and piston [4] is positioned at fluid cylinder [3]
In the toroidal cavity of ontology [2] composition, piston [4] inside and outside wall forms the sealing that slides axially with ontology [2] and fluid cylinder [3] respectively
Cooperation, is fixedly connected by shear pin [9] between piston [4] and fluid cylinder [3], is set on the ontology [2] at the top of piston [4]
There is radial direction inlet opening [15], helmet [7] is fixedly connected on lower contact [8] top, and skeleton [6] is expanding structure, and skeleton [6] is set with
External in ontology [2], skeleton [6] upper and lower side docks respectively with piston [4] and helmet [7], and thrust is set in skeleton [6] upper end
Ring [5], thrust ring [5] are elastic baffle ring, and the pawl limiting processed on thrust ring [5] and ontology [2] coordinates.
2. the skeleton anchor mechanism of hole diameters expansion sleeve is waited as described in claim 1, it is characterized in that：Skeleton [6] is soft gold
Belong to multiple-piece composite structure made of material, skeleton [6] inside and outside wall along the circumferential direction opens up 2-4 V-groove [14] respectively.
3. the skeleton anchor mechanism of hole diameters expansion sleeve is waited as claimed in claim 2, it is characterized in that：On ontology [2] inner wall
Ball seat [10] is machined with, skeleton [6] outer wall is embedded with steel nail [12].
4. the skeleton anchor mechanism of hole diameters expansion sleeve is waited as claimed in claim 2, it is characterized in that：Skeleton [6] is 6-10
Piece composite structure.
5. the skeleton anchor mechanism of hole diameter expansion sleeve as described in claim 1-4 is any, it is characterized in that：Helmet [7]
It is connect by screw thread with ontology [2] and skeleton [6], snap ring [13] is machined between helmet [7] and ontology [2].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210507.5A CN108240188A (en) | 2016-12-24 | 2016-12-24 | Wait the skeleton anchor mechanism of hole diameters expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210507.5A CN108240188A (en) | 2016-12-24 | 2016-12-24 | Wait the skeleton anchor mechanism of hole diameters expansion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240188A true CN108240188A (en) | 2018-07-03 |
Family
ID=62704518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611210507.5A Pending CN108240188A (en) | 2016-12-24 | 2016-12-24 | Wait the skeleton anchor mechanism of hole diameters expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240188A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927364A (en) * | 2020-09-27 | 2020-11-13 | 东营鑫华莲石油机械有限公司 | Prestressed ground anchor and method for segmented well completion of horizontal well screen pipe by using prestressed ground anchor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030217844A1 (en) * | 2000-07-07 | 2003-11-27 | Moyes Peter Barnes | Deformable member |
| CN1675447A (en) * | 2002-08-19 | 2005-09-28 | 贝克休斯公司 | High expansion anchor system |
| CN2761830Y (en) * | 2005-01-10 | 2006-03-01 | 辽河石油勘探局 | Outside pipe liquid expansion packer |
| CN201031634Y (en) * | 2007-04-25 | 2008-03-05 | 新疆石油管理局钻井工艺研究院 | Radial variable casing tube centralizer |
| DE102011085540B3 (en) * | 2011-11-01 | 2013-04-11 | Untergrundspeicher- Und Geotechnologie-Systeme Gmbh | Device for closing and opening borehole of well, has expansible anchor that is deformed in active state so that axial length of expansion anchor is shortened and radial diameter is widened |
| US20130213635A1 (en) * | 2008-08-14 | 2013-08-22 | Gustavo Ignacio Carro | Hydraulic well packer |
| CN203847019U (en) * | 2014-05-20 | 2014-09-24 | 中国石油化工股份有限公司 | Limiting type hydraulic casing pipe straightening tool |
| CN204082032U (en) * | 2014-09-02 | 2015-01-07 | 中国石油集团长城钻探工程有限公司 | A kind of hydroelastic system centralizer |
| CN205225129U (en) * | 2015-11-27 | 2016-05-11 | 中国石油天然气股份有限公司 | Hydraulic anchor |
| CN206530310U (en) * | 2016-12-24 | 2017-09-29 | 中石化石油工程技术服务有限公司 | Deng the skeleton anchor mechanism of hole diameter expansion sleeve |
-
2016
- 2016-12-24 CN CN201611210507.5A patent/CN108240188A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030217844A1 (en) * | 2000-07-07 | 2003-11-27 | Moyes Peter Barnes | Deformable member |
| CN1675447A (en) * | 2002-08-19 | 2005-09-28 | 贝克休斯公司 | High expansion anchor system |
| CN2761830Y (en) * | 2005-01-10 | 2006-03-01 | 辽河石油勘探局 | Outside pipe liquid expansion packer |
| CN201031634Y (en) * | 2007-04-25 | 2008-03-05 | 新疆石油管理局钻井工艺研究院 | Radial variable casing tube centralizer |
| US20130213635A1 (en) * | 2008-08-14 | 2013-08-22 | Gustavo Ignacio Carro | Hydraulic well packer |
| DE102011085540B3 (en) * | 2011-11-01 | 2013-04-11 | Untergrundspeicher- Und Geotechnologie-Systeme Gmbh | Device for closing and opening borehole of well, has expansible anchor that is deformed in active state so that axial length of expansion anchor is shortened and radial diameter is widened |
| CN203847019U (en) * | 2014-05-20 | 2014-09-24 | 中国石油化工股份有限公司 | Limiting type hydraulic casing pipe straightening tool |
| CN204082032U (en) * | 2014-09-02 | 2015-01-07 | 中国石油集团长城钻探工程有限公司 | A kind of hydroelastic system centralizer |
| CN205225129U (en) * | 2015-11-27 | 2016-05-11 | 中国石油天然气股份有限公司 | Hydraulic anchor |
| CN206530310U (en) * | 2016-12-24 | 2017-09-29 | 中石化石油工程技术服务有限公司 | Deng the skeleton anchor mechanism of hole diameter expansion sleeve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927364A (en) * | 2020-09-27 | 2020-11-13 | 东营鑫华莲石油机械有限公司 | Prestressed ground anchor and method for segmented well completion of horizontal well screen pipe by using prestressed ground anchor |
| CN111927364B (en) * | 2020-09-27 | 2022-05-10 | 纬达石油装备有限公司 | Prestressed ground anchor and method for segmented well completion of horizontal well screen pipe by using prestressed ground anchor |
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