CN105604511B - Thermal production well earth anchor - Google Patents
Thermal production well earth anchor Download PDFInfo
- Publication number
- CN105604511B CN105604511B CN201610142871.6A CN201610142871A CN105604511B CN 105604511 B CN105604511 B CN 105604511B CN 201610142871 A CN201610142871 A CN 201610142871A CN 105604511 B CN105604511 B CN 105604511B
- Authority
- CN
- China
- Prior art keywords
- ring plate
- outside
- sliding sleeve
- hole
- central shaft
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
Abstract
The present invention relates to earth anchor technical field, it is a kind of thermal production well earth anchor, it includes body, sliding sleeve, central shaft and lower body, the lower inside of upper body and the upper outside of lower body are fixedly installed togather, the bottom of sliding sleeve is fixedly installed togather with upper body by least one upper shear pin, upper ring plate is fixed with the lower inside of sliding sleeve, limiting plate is fixed with the inside of the sliding sleeve above upper ring plate, the fluid hole of up/down perforation is provided with center on limiting plate, the float collar core body of fluid hole can be blocked by being provided between limiting plate and upper ring plate, the outer sheath of float collar core body above upper ring plate is equipped with compression spring.Reasonable and compact in structure of the present invention, easy to use, it is in special cementing operation, anchor fluke firmly can be anchored in the borehole wall by the present invention, sleeve pipe is securely fixed in well, improve the quality of well cementation, the success rate of special cementing is improved, so as to reduce the risk of sleeve pipe loss.
Description
Technical field
The present invention relates to earth anchor technical field, is a kind of thermal production well earth anchor.
Background technology
Special cementing is exactly the tension for applying some strength to sleeve pipe, makes sleeve pipe in this case by cement setting,
When the temperature increases, so that it may offset a part of sleeve pipe by thermogenetic compression, so as to improve the resistance to extreme temperature of sleeve pipe, slow down or
Casing Failure caused by avoiding steam injection.Special cementing technology is the technology that domestic and international thickened oil recovery generally uses.At present, exist
During special cementing, earth anchor has certain shadow to the quality of special cementing as cementing tool, its working condition
Ring, when earth anchor can not be fixedly anchored in the borehole wall, fix tightly soundness of the sleeve pipe in well can be influenceed, once sleeve pipe can not jail
Solid be installed in well, the quality of well cementation can be reduced, reduce the success rate of special cementing, so as to improve sleeve pipe loss wind
Danger.
The content of the invention
The invention provides a kind of thermal production well earth anchor, overcomes the deficiency of above-mentioned prior art, it can effectively solve existing
Have existing earth anchor can not be fixedly anchored in the borehole wall during special cementing the problem of.
The technical scheme is that realized by following measures：A kind of thermal production well earth anchor, including upper body, cunning
Set, central shaft and lower body, the lower inside of upper body and the upper outside of lower body are fixedly installed togather, the bottom of sliding sleeve
It is fixedly installed togather with upper body by least one upper shear pin, upper ring plate is fixed with the lower inside of sliding sleeve,
Limiting plate is fixed with the inside of the sliding sleeve above upper ring plate, the fluid hole of up/down perforation is provided with the center on limiting plate,
The float collar core body of fluid hole can be blocked by being provided between limiting plate and upper ring plate, the outside of the float collar core body above upper ring plate
Compression spring is set with, the bottom of float collar core body passes through upper ring plate, by extremely on the inside of the upper body between sliding sleeve and lower body
Few one down cut pin is installed with lower ring plate, has spacing between float collar core body and lower ring plate, in lower ring plate with
There is spacing between body, the inner side of lower ring plate and the upper outside of central shaft are fixed together, circumferentially uniform on lower body
At least two grappling radial direction through hole is distributed with, be hinged with lower body with grappling radial direction through hole quantity identical anchor fluke, often
One grappling radial direction through hole has that an anchor fluke is inside and outside corresponding with it, anchor fluke can towards and corresponding grappling radial direction through hole inside and outside it
Outside open, be hinged with connecting rod between the bottom of central shaft and the top of each anchor fluke, be spaced apart on upper ring plate
There is the upper flowing hole of up/down perforation, the lower flowing hole of up/down perforation is intervally distributed with lower ring plate.
Here is the further optimization and/or improvements to foregoing invention technical scheme：
The axis direction of above-mentioned central shaft is provided with opening up blind hole, is circumferentially spaced apart in the side of central shaft
There are the radial direction pod apertures communicated with blind hole.
Above-mentioned float valve core body includes mushroom head, and valve rod, the bottom longitudinal cross-section of mushroom head are fixed with the bottom of mushroom head
Width is more than the internal diameter of upper ring plate, and the diameter of valve rod is not more than the internal diameter of upper ring plate, and compression spring is sleeved on the outside of valve rod,
The bottom face of limiting plate be provided with it is corresponding with mushroom head coordinate concave station, mushroom head, which is held out against, to be coordinated in concave station.
The upper end of above-mentioned anchor fluke be provided with interior it is outside upper it is skewed hold out against face, the top end face in grappling radial direction through hole
Have with holding out against face corresponding guiding face up and down.
The upper inner of the upper outside of above-mentioned sliding sleeve and upper body is sealingly mounted at one by the sealing ring together with least
Rise.
The lower inside of above-mentioned upper body and the upper outside of lower body are threadably secured and are installed together, lower ring plate
The upper outside of inner side and central shaft, which is threadably secured, to be installed together, and is hinged with lower body by hinge pin and anchor
Sizing is be hinged by hinge pin between the bottom of central shaft and the top of each anchor fluke to number of openings identical anchor fluke
There is connecting rod, have internal thread on the upper body above sliding sleeve.
Reasonable and compact in structure of the present invention, easy to use, in special cementing operation, the present invention can be by anchor fluke jail for it
Solid be anchored in the borehole wall, sleeve pipe is securely fixed in well, improve the quality of well cementation, improve special cementing into
Power, so as to reduce the risk of sleeve pipe loss.
Brief description of the drawings
Fig. 1 is the main view half section schematic of preferred embodiment.
Fig. 2 is the main view half section schematic that the anchor fluke of preferred embodiment opens.
Fig. 3 is section view mplifying structure schematic diagram of the upper ring plate at A-A in accompanying drawing 1.
Fig. 4 is section view mplifying structure schematic diagram of the lower ring plate at B-B in accompanying drawing 1.
Coding in accompanying drawing is respectively：1 is upper body, and 2 be sliding sleeve, and axle centered on 3,4 be lower body, and 5 be upper shear pin
Nail, 6 be upper ring plate, and 7 be limiting plate, and 8 be fluid hole, and 9 be compression spring, and 10 be upper flowing hole, and 11 be lower flowing hole, under 12 are
Shear pin, 13 be lower ring plate, and 14 be grappling radial direction through hole, and 15 be anchor fluke, and 16 be connecting rod, and 17 be blind hole, and 18 be radial direction water conservancy diversion
Hole, 19 be mushroom head, and 20 be valve rod, and 21 is hold out against face, and 22 be guiding face, and 23 be sealing ring, and 24 be hinge pin.
Embodiment
The present invention is not limited by following embodiments, can technique according to the invention scheme and actual conditions it is specific to determine
Embodiment.
In the present invention, for the ease of description, the description of the relative position relation of each part is according to Figure of description 1
Butut mode be described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is the Butut according to Figure of description
Direction determines.
With reference to embodiment and accompanying drawing, the invention will be further described：
As shown in accompanying drawing 1 to 4, the thermal production well includes upper body 1, sliding sleeve 2, central shaft 3 and lower body 4 with earth anchor, upper
The lower inside of body 1 and the upper outside of lower body 4 are fixedly installed togather, and the bottom of sliding sleeve 2 passes through at least one with upper body 1
Individual upper shear pin 5 is fixedly installed togather, and upper ring plate 6 is fixed with the lower inside of sliding sleeve 2, above upper ring plate 6
The inner side of sliding sleeve 2 is fixed with limiting plate 7, and the fluid hole 8 of up/down perforation is provided with the center on limiting plate 7, limiting plate 7 with
The float collar core body of fluid hole 8 can be blocked by being provided between upper ring plate 6, and the outer sheath of the float collar core body above upper ring plate 6 is equipped with
Compression spring 9, the bottom of float collar core body pass through upper ring plate 6, and the inner side of upper body 1 between sliding sleeve 2 and lower body 4 is by least
The down cut pin 12 of one is installed with lower ring plate 13, has spacing between float collar core body and lower ring plate 13, in lower ring plate
There is spacing between 13 and lower body 4, the inner side of lower ring plate 13 and the upper outside of central shaft 3 are fixed together, on lower body 4
At least two grappling radial direction through hole 14 is circumferentially evenly distributed with, is hinged with lower body 4 and is counted with grappling radial direction through hole 14
Measure identical anchor fluke 15, each grappling radial direction through hole 14 has that an anchor fluke 15 is inside and outside corresponding with it, the energy of anchor fluke 15 direction with
The outside of grappling radial direction through hole 14 is opened corresponding to it is inside and outside, between the bottom of central shaft 3 and the top of each anchor fluke 15
Connecting rod 16 is hinged with, the upper flowing hole 10 of up/down perforation is intervally distributed with upper ring plate 6, is intervally distributed with lower ring plate 13
The lower flowing hole 11 of up/down perforation.Anchor fluke 15 firmly can be anchored in the borehole wall by the present invention, be securely fixed in sleeve pipe
In well, the quality of well cementation is improved, improves the success rate of special cementing, so as to reduce the risk of sleeve pipe loss.
Above-mentioned thermal production well can be made further optimization and/or improvements with earth anchor according to being actually needed：
As shown in accompanying drawing 1 to 4, opening up blind hole 17 is provided with the axis direction of central shaft 3, in central shaft 3
Side is circumferentially intervally distributed with the radial direction pod apertures 18 communicated with blind hole 17.The setting of blind hole 17 and radial direction pod apertures 18,
On the one hand, when lower flowing hole 11 is unplugged, it is possible to increase the throughput of mud, accelerate the speed of mud grouting；On the other hand, exist
When lower flowing hole 11 blocks, mud can be made to pass through lower ring plate 13, ensure being smoothed out for well cementing operation.
As shown in accompanying drawing 1 to 4, float valve core body includes mushroom head 19, and valve rod 20, mushroom are fixed with the bottom of mushroom head 19
First 19 bottom longitudinal cross-section width is more than the internal diameter of upper ring plate 6, and the diameter of valve rod 20 is not more than the internal diameter of upper ring plate 6, compression
Spring 9 is sleeved on the outside of valve rod 20, and the bottom face of limiting plate 7 is provided with cooperation concave station corresponding with mushroom head 19, mushroom
First 19 hold out against in cooperation concave station.
As shown in accompanying drawing 1 to 4, be provided with the upper end of anchor fluke 15 under interior it is outside upper it is skewed hold out against face 21, in grappling
Top end face in radial direction through hole 14 has with holding out against face corresponding guiding face 22 about 21.Skewed face 21 is held out against in outside upper under interior
It is easy to anchor fluke 15 to be anchored in the borehole wall, further increases the quality of well cementation, so as to reduce further the risk of sleeve pipe loss.
As shown in accompanying drawing 1 to 4, the upper inner of the upper outside of sliding sleeve 2 and upper body 1 passes through the sealing ring together with least
23 are sealingly mounted at together.The setting of sealing ring 23 can be improved between the upper outside of sliding sleeve 2 and the upper inner of upper body 1
Sealing so that sliding sleeve 2 quickly builds the pressure, the cutting time of shear pin 5 and down cut pin 12, accelerates anchor in shortening
The grappling speed of pawl 15.
As shown in accompanying drawing 1 to 4, the upper outside of the lower inside of upper body 1 and lower body 4, which is threadably secured, to be arranged on
Together, the upper outside of the inner side of lower ring plate 13 and central shaft 3, which is threadably secured, is installed together, and passes through in lower body 4
Hinge pin 24 be hinged with the quantity identical anchor fluke 15 of grappling radial direction through hole 14, in the bottom of central shaft 3 and each anchor fluke 15
Top between connecting rod 16 is hinged with by hinge pin 24, have internal thread on the upper body 1 above sliding sleeve 2.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and there is stronger adaptability and optimal implementation to imitate for it
Fruit, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.
The use process of preferred embodiment：First, the present invention is fixedly connected on to the afterbody of sleeve pipe pipe string, incite somebody to action this
Invention lower going-into-well bottom carries out well cementing operation, is pumped into mud, and mud enters fluid hole 8, and float collar core body is under the pressure effect of mud
Descending, compression spring 9 is compressed, and makes mud sequentially radially logical through fluid hole 8, upper flowing hole 10, lower flowing hole 11 and grappling
The annular space that hole 14 is reached between well and sleeve pipe carries out cementing well, and after cementing is stopped, float collar core body is compressing
Resetted in the presence of spring 9, float collar core body blocks fluid hole 8, then, cementing plug bruising on sliding sleeve 2, sliding sleeve 2 by
Under thrust, when thrust reaches certain value, upper shear pin 5 and down cut pin 12 are cut, and then sliding sleeve 2 is descending, sliding
The descending drive lower ring plate 13 of set 2 is descending with central shaft 3, and the descending promotion connecting rod 16 of central shaft 3 is descending, promotes connecting rod 16
Anchor fluke 15 opens to the outside of grappling radial direction through hole 14, and anchor fluke 15 eats the borehole wall, and well head applies sleeve pipe prestressing force, what anchor fluke 15 consolidated
It is stuck in the borehole wall, sleeve pipe is fixed in well, completes special cementing.
Claims (12)
1. a kind of thermal production well earth anchor, it is characterised in that including upper body, sliding sleeve, central shaft and lower body, the bottom of upper body
Inner side and the upper outside of lower body are fixedly installed togather, and the bottom of sliding sleeve passes through at least one upper shear pin with upper body
Nail is fixedly installed togather, and is fixed with upper ring plate in the lower inside of sliding sleeve, is fixed on the inside of the sliding sleeve above upper ring plate limited
Position plate, the fluid hole of up/down perforation is provided with the center on limiting plate, being provided between limiting plate and upper ring plate to block up
The firmly float collar core body of fluid hole, the outer sheath of the float collar core body above upper ring plate are equipped with compression spring, the bottom of float collar core body
Through upper ring plate, under being installed with the inside of the upper body between sliding sleeve and lower body by least one down cut pin
Ring flat-plate, there is spacing between float collar core body and lower ring plate, have spacing between lower ring plate and lower body, the inner side of lower ring plate is with
The upper outside of mandrel is fixed together, and at least two grappling radial direction through hole is circumferentially evenly distributed with lower body,
Be hinged with lower body has an anchor fluke and its with grappling radial direction through hole quantity identical anchor fluke, each grappling radial direction through hole
Inside and outside correspondence, anchor fluke can towards with the outside of its inside and outside corresponding grappling radial direction through hole opening, the bottom of central shaft with it is each
Connecting rod is hinged between the top of anchor fluke, the upper flowing hole of up/down perforation is intervally distributed with upper ring plate, on lower ring plate
It is intervally distributed with the lower flowing hole of up/down perforation.
2. thermal production well earth anchor according to claim 1, it is characterised in that the axis direction of central shaft is provided with opening court
On blind hole, the radial direction pod apertures communicated with blind hole are circumferentially intervally distributed with the side of central shaft.
3. thermal production well earth anchor according to claim 1 or 2, it is characterised in that float valve core body includes mushroom head, in mushroom
The bottom of head is fixed with valve rod, and the bottom longitudinal cross-section width of mushroom head is more than the internal diameter of upper ring plate, and the diameter of valve rod is not more than
The internal diameter of upper ring plate, compression spring are sleeved on the outside of valve rod, and the bottom face of limiting plate is provided with match somebody with somebody corresponding with mushroom head
Concave station is closed, mushroom head, which is held out against, to be coordinated in concave station.
4. thermal production well earth anchor according to claim 1 or 2, it is characterised in that the upper end of anchor fluke is provided with outside upper under interior
Skewed holds out against face, and the top end face in grappling radial direction through hole has guiding face corresponding with holding out against above and below face.
5. thermal production well earth anchor according to claim 3, it is characterised in that the upper end of anchor fluke is provided with interior lower outer updip
Ramp-like holds out against face, and the top end face in grappling radial direction through hole has guiding face corresponding with holding out against above and below face.
6. according to the thermal production well earth anchor described in claim 1 or 2 or 5, it is characterised in that the upper outside of sliding sleeve and upper body
Upper inner by least together sealing ring be sealingly mounted at together.
7. thermal production well earth anchor according to claim 3, it is characterised in that the upper outside of sliding sleeve and the top of upper body
Inner side is sealingly mounted at together by sealing ring at least together.
8. thermal production well earth anchor according to claim 4, it is characterised in that the upper outside of sliding sleeve and the top of upper body
Inner side is sealingly mounted at together by sealing ring at least together.
9. according to the thermal production well earth anchor described in claim 1 or 2 or 5 or 7 or 8, it is characterised in that the lower inside of upper body
It is threadably secured and is installed together with the upper outside of lower body, the inner side of lower ring plate and the upper outside of central shaft passes through spiral shell
Line is fixedly installed togather, in lower body by hinge pin be hinged with grappling radial direction through hole quantity identical anchor fluke,
Connecting rod is hinged with by hinge pin between the bottom of central shaft and the top of each anchor fluke, on the upper body above sliding sleeve
There is internal thread.
10. thermal production well earth anchor according to claim 3, it is characterised in that the lower inside of upper body is upper with lower body
It is threadably secured and is installed together on the outside of portion, the inner side of lower ring plate and the upper outside of central shaft is threadably secured and be arranged on
Together, in lower body by hinge pin be hinged with grappling radial direction through hole quantity identical anchor fluke, in the bottom of central shaft
Connecting rod is hinged with by hinge pin between the top of each anchor fluke, has internal thread on the upper body above sliding sleeve.
11. thermal production well earth anchor according to claim 4, it is characterised in that the lower inside of upper body is upper with lower body
It is threadably secured and is installed together on the outside of portion, the inner side of lower ring plate and the upper outside of central shaft is threadably secured and be arranged on
Together, in lower body by hinge pin be hinged with grappling radial direction through hole quantity identical anchor fluke, in the bottom of central shaft
Connecting rod is hinged with by hinge pin between the top of each anchor fluke, has internal thread on the upper body above sliding sleeve.
12. thermal production well earth anchor according to claim 6, it is characterised in that the lower inside of upper body is upper with lower body
It is threadably secured and is installed together on the outside of portion, the inner side of lower ring plate and the upper outside of central shaft is threadably secured and be arranged on
Together, in lower body by hinge pin be hinged with grappling radial direction through hole quantity identical anchor fluke, in the bottom of central shaft
Connecting rod is hinged with by hinge pin between the top of each anchor fluke, has internal thread on the upper body above sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142871.6A CN105604511B (en) | 2016-03-14 | 2016-03-14 | Thermal production well earth anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142871.6A CN105604511B (en) | 2016-03-14 | 2016-03-14 | Thermal production well earth anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105604511A CN105604511A (en) | 2016-05-25 |
| CN105604511B true CN105604511B (en) | 2018-03-02 |
Family
ID=55984797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610142871.6A Active CN105604511B (en) | 2016-03-14 | 2016-03-14 | Thermal production well earth anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105604511B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550203A (en) * | 2020-06-28 | 2020-08-18 | 郭锦端 | Recovery type underground mechanical expansion anchoring equipment |
| CN114109318B (en) * | 2020-08-27 | 2024-05-07 | 中国石油化工股份有限公司 | Pumping device and method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2704561C (en) * | 2010-04-22 | 2014-10-21 | Suncor Energy Inc. | Heater string and process of well heating |
| CN202273619U (en) * | 2011-10-29 | 2012-06-13 | 中国石油集团西部钻探工程有限公司 | Drilling-type prestress well cementation ground anchor |
| CN203515413U (en) * | 2013-09-17 | 2014-04-02 | 中国石油集团西部钻探工程有限公司 | Mechanical and hydraulic dual-action ground anchor assembly |
| CN203742505U (en) * | 2014-02-13 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Floating ball and float collar type prestress well cementation ground anchor assembly |
| CN204571914U (en) * | 2015-04-09 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Mechanical and hydraulic double-acting special cementing device |
| CN204571915U (en) * | 2015-04-09 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Double acting thermal production well special cementing instrument assembly |
| CN205477471U (en) * | 2016-03-14 | 2016-08-17 | 中国石油集团西部钻探工程有限公司 | Earth anchor for thermal production well |
-
2016
- 2016-03-14 CN CN201610142871.6A patent/CN105604511B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105604511A (en) | 2016-05-25 |
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Effective date of registration: 20201104 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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