CN105604511A - Ground anchor for thermal production well - Google Patents
Ground anchor for thermal production well Download PDFInfo
- Publication number
- CN105604511A CN105604511A CN201610142871.6A CN201610142871A CN105604511A CN 105604511 A CN105604511 A CN 105604511A CN 201610142871 A CN201610142871 A CN 201610142871A CN 105604511 A CN105604511 A CN 105604511A
- Authority
- CN
- China
- Prior art keywords
- outside
- hole
- sliding sleeve
- ring plate
- production well
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 241000935974 Paralichthys dentatus Species 0.000 claims description 31
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
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 invention relates to the technical field of ground anchors, in particular to a ground anchor for a thermal production well. The ground anchor comprises an upper body, a sliding sleeve, a center shaft and a lower body. The inner side of the lower portion of the upper body and the outer side of the upper portion of the lower body are fixedly installed together. The lower portion of the sliding sleeve and the upper body are fixedly installed together through at least one upper shear pin. An upper annular plate is fixedly arranged on the inner side of the lower portion of the sliding sleeve. A limiting plate is fixedly arranged on the inner side of the sliding sleeve above the upper annular plate. A vertical-through liquid flowing hole is formed in the center of the limiting plate. A float collar core body capable of blocking the liquid flowing hole is installed between the limiting plate and the upper annular plate. The float collar core body above the upper annular plate is sleeved with a compression spring. The ground anchor is reasonable and compact in structure and convenient to use, anchor jaws can be firmly anchored to the well wall in the prestressing well cementing operation through the ground anchor, a casing pipe is firmly fixed into the well, the well cementation quality is improved, the prestressing force well cementation success rate is increased, and therefore the casing pipe loss risk is lowered.
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 that applies some strength to sleeve pipe, make sleeve pipe under this state by cement setting,In the time that temperature raises, just can offset a part of sleeve pipe and be subject to thermogenetic compression, thereby improve the resistance to extreme temperature of sleeve pipe, slow down orThe Casing Failure of avoiding steam injection to cause. Special cementing technology is the technology that domestic and international thickened oil recovery generally adopts. At present, existIn the process of special cementing, earth anchor is as cementing tool, and its duty has certain shadow to the quality of special cementingRing, in the time that earth anchor can not be anchored in the borehole wall securely, can affect the fix tightly soundness of sleeve pipe in well, once sleeve pipe can not jailSolid be installed in well, can reduce the quality of well cementation, reduce the success rate of special cementing, thereby improved the wind of sleeve pipe lossDanger.
Summary of the invention
The invention provides a kind of thermal production well earth anchor, overcome the deficiency of above-mentioned prior art, it can effectively solve existingThere is the earth anchor existing in special cementing process can not be anchored to securely the problem in the borehole wall.
Technical scheme of the present invention realizes by following measures: a kind of thermal production well earth anchor, comprises upper body, cunningCover, central shaft and lower body, the upper outside of the lower inside of upper body and lower body is fixedly installed togather, the bottom of sliding sleeveBe fixedly installed togather by the upper shear pin of at least one with upper body, be fixed with upper ring plate in the lower inside of sliding sleeve,Sliding sleeve inner side above upper ring plate is fixed with limiting plate, and the center on limiting plate is provided with the fluid hole of up/down perforation,The float collar core body that can block fluid hole is installed between limiting plate and upper ring plate, the outside of the float collar core body above upper ring plateBe set with Compress Spring, the bottom of float collar core body is through upper ring plate, and the upper body inner side between sliding sleeve and lower body is passed through extremelyThe down cut pin of few one is installed with lower ring plate, between float collar core body and lower ring plate, has spacing, lower ring plate with underBetween body, have spacing, the inner side of lower ring plate and the upper outside of central shaft are fixed together, on lower body along even circumferentialBe distributed with the grappling radial direction through hole of at least two, in lower body, be hinged with the anchor fluke identical with grappling radial direction through hole quantity, everyGrappling radial direction through hole all has an anchor fluke and it is inside and outside corresponding, anchor fluke can towards with grappling radial direction through hole corresponding inside and outside itOutside open, between the bottom of central shaft and the top of each anchor fluke, be all hinged with connecting rod, spaced apart on upper ring plateThere is the upper flowing hole of up/down perforation, on lower ring plate, be intervally distributed with the lower flowing hole of up/down perforation.
The further optimization and/or improvements to foregoing invention technical scheme below:
The axis direction of above-mentioned central shaft is provided with opening up blind hole, in the side of central shaft along circumferentially-spaced have withThe radial guiding discharge orifice that blind hole communicates.
Above-mentioned float valve core body comprises mushroom head, is fixed with valve rod in the bottom of mushroom head, the longitudinal cross-section, bottom of mushroom headWidth is greater 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 Compress Spring is sleeved on the outside of valve rod,The bottom face of limiting plate is provided with the cooperation concave station corresponding with mushroom head, and mushroom head holds out against in cooperation concave station.
The upper end of above-mentioned anchor fluke is provided with the face that holds out against that is the interior lower outside shape that tilts, the top end face in grappling radial direction through holeThere is the guiding face upper and lower corresponding with holding out against face.
The upper outside of above-mentioned sliding sleeve is arranged on one with the upper inner of upper body by the sealing ring sealing at leastRise.
The upper outside of the lower inside of above-mentioned upper body and lower body is fixedly installed togather by screw thread, lower ring plateInner side is fixedly installed togather by screw thread with the upper outside of central shaft, in lower body, is hinged with and anchor by hinge pinSizing is to the identical anchor fluke of number of openings, all hinged by hinge pin between the bottom of central shaft and the top of each anchor flukeThere is connecting rod, on the upper body above sliding sleeve, have internal thread.
Reasonable and compact in structure of the present invention, easy to use, it is in special cementing operation, and the present invention can be by anchor fluke jailSolid be anchored in the borehole wall, sleeve pipe is securely fixed in well, improved the quality of well cementation, improved the one-tenth of special cementingPower, thus the risk that sleeve pipe loses reduced.
Brief description of the drawings
The master that accompanying drawing 1 is most preferred embodiment of the present invention looks half section structural representation.
The master that the anchor fluke that accompanying drawing 2 is most preferred embodiment of the present invention opens looks half section structural representation.
Accompanying drawing 3 is analysed and observe structure for amplifying schematic diagram at A-A place for the upper ring plate in accompanying drawing 1.
Accompanying drawing 4 is analysed and observe structure for amplifying schematic diagram at B-B place for the lower ring plate in accompanying drawing 1.
Coding in accompanying drawing is respectively: 1 for upper body, and 2 is sliding sleeve, axle centered by 3, and 4 is lower body, 5 is upper shear pinNail, 6 is upper ring plate, 7 is limiting plate, 8 is fluid hole, 9 is Compress Spring, 10 is upper flowing hole, 11 is lower flowing hole, 12 be underShear pin, 13 is lower ring plate, and 14 for grappling radial direction through hole, and 15 is anchor fluke, and 16 is connecting rod, and 17 is blind hole, and 18 is water conservancy diversion radiallyHole, 19 is mushroom head, and 20 is valve rod, and 21 for holding out against face, and 22 is guiding face, and 23 is sealing ring, and 24 is hinge pin.
Detailed description of the invention
The present invention is not subject to the restriction of following embodiment, can determine specifically according to technical scheme of the present invention and actual conditionsEmbodiment.
In the present invention, for convenience of description, the description of the relative position relation of each parts is all according to Figure of description 1Butut mode be described, as: the position relationship of forward and backward, upper and lower, left and right etc. is the Butut according to Figure of descriptionDirection is determined.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
As shown in accompanying drawing 1 to 4, this thermal production well comprises upper body 1, sliding sleeve 2, central shaft 3 and lower body 4, upper body 1 with earth anchorThe upper outside of lower inside and lower body 4 is fixedly installed togather, and the bottom of sliding sleeve 2 and upper body 1 pass through at least oneUpper shear pin 5 is fixedly installed togather, and is fixed with upper ring plate 6 in the lower inside of sliding sleeve 2, the sliding sleeve 2 above upper ring plate 6Inner side is fixed with limiting plate 7, and the center on limiting plate 7 is provided with the fluid hole 8 of up/down perforation, in limiting plate 7 and pressed on ringThe float collar core body that can block fluid hole 8 is installed between plate 6, and the outside of the float collar core body above upper ring plate 6 is set with compressionSpring 9, the bottom of float collar core body is through upper ring plate 6, and upper body 1 inner side between sliding sleeve 2 and lower body 4 is by least oneDown cut pin 12 be installed with lower ring plate 13, between float collar core body and lower ring plate 13, have spacing, lower ring plate 13 withBetween lower body 4, have spacing, the upper outside of the inner side of lower ring plate 13 and central shaft 3 is fixed together, edge circle on lower body 4Be evenly distributed with the grappling radial direction through hole 14 of at least two week, in lower body 4, be hinged with and grappling radial direction through hole 14 quantity phasesWith anchor fluke 15, each grappling radial direction through hole 14 all have an anchor fluke 15 with its inside and outside corresponding, anchor fluke 15 can be in itOpen in the outside of the grappling radial direction through hole 14 of outer correspondence, all hinged between the bottom of central shaft 3 and the top of each anchor fluke 15There is connecting rod 16, on upper ring plate 6, be intervally distributed with the upper flowing hole 10 of up/down perforation, on lower ring plate 13, be intervally distributed with upper and lowerThe lower flowing hole 11 connecting. The present invention can firmly be anchored on anchor fluke 15 in the borehole wall, and sleeve pipe is securely fixed in well,The quality that has improved well cementation, has improved the success rate of special cementing, thereby has reduced the risk of sleeve pipe loss.
Can according to actual needs, above-mentioned thermal production well be made further optimization and/or improvements with earth anchor:
As shown in accompanying drawing 1 to 4, be provided with opening up blind hole 17 at the axis direction of central shaft 3, in the side of central shaft 3There is the radial guiding discharge orifice 18 communicating with blind hole 17 along circumferentially-spaced. The setting of blind hole 17 and radial guiding discharge orifice 18, a sideFace, in the time that lower flowing hole 11 does not stop up, can improve the throughput of mud, accelerates the speed of mud grouting; On the other hand, descendingWhen discharge orifice 11 stops up, can make mud smoothly by lower ring plate 13, ensure carrying out smoothly of well cementing operation.
As shown in accompanying drawing 1 to 4, float valve core body comprises mushroom head 19, is fixed with valve rod 20, mushroom in the bottom of mushroom head 1919 longitudinal cross-section, bottom width is greater 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, compressionSpring 9 is sleeved on the outside of valve rod 20, is provided with the cooperation concave station corresponding with mushroom head 19, mushroom at the bottom face of limiting plate 719 hold out against coordinating in concave station.
As shown in accompanying drawing 1 to 4, be provided with the face that holds out against 21 that is the interior lower outside shape that tilts in the upper end of anchor fluke 15, in grapplingTop end face in radial direction through hole 14 has and the face that holds out against corresponding guiding face 22 Shang Xia 21. Be the face that holds out against 21 of the interior lower outside shape that tiltsBe convenient to anchor fluke 15 and be anchored in the borehole wall, further improved the quality of well cementation, thereby further reduced 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 is by the sealing ring together with at least23 sealings are installed together. The setting of sealing ring 23 can improve between the upper outside of sliding sleeve 2 and the upper inner of upper body 1Sealing, thereby sliding sleeve 2 is built the pressure fast, the cutting off the time of shear pin 5 and down cut pin 12 in shortening, has accelerated anchorThe 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 is fixedly mounted on by screw threadTogether, the upper outside of the inner side of lower ring plate 13 and central shaft 3 is fixedly installed togather by screw thread, in lower body 4, passes throughHinge pin 24 is hinged with the anchor fluke 15 identical with grappling radial direction through hole 14 quantity, at bottom and each anchor fluke 15 of central shaft 3Top between be all hinged with connecting rod 16 by hinge pin 24, on the upper body 1 above sliding sleeve 2, have internal thread.
Above technical characterictic has formed most preferred embodiment of the present invention, and it has stronger adaptability and the best effect of implementingReally, can increase and decrease according to actual needs non-essential technical characterictic, meet the demand of different situations.
The use procedure of most preferred embodiment of the present invention: first, the present invention is fixedly connected on to the afterbody of sleeve pipe pipe string, incites somebody to action thisAt the bottom of invention lower going-into-well, carry out well cementing operation, pump into mud, mud enters fluid hole 8, and float collar core body is under the pressure-acting of mudDescending, Compress Spring 9 is compressed, makes mud sequentially radially logical through fluid hole 8, upper flowing hole 10, lower flowing hole 11 and grapplingThe annular space that hole 14 arrives between well and sleeve pipe carries out cementing well, and when stopping after cementing, float collar core body is in compressionUnder the effect of spring 9, reset, float collar core body is blocked fluid hole 8, then, cementing plug bruising on sliding sleeve 2, sliding sleeve 2 be subject toUnder thrust, in the time that thrust reaches certain value, upper shear pin 5 and down cut pin 12 are cut off, then sliding sleeve 2 is descending, slidingThe descending drive lower ring plate 13 of cover 2 is descending with central shaft 3, and the descending promotion connecting rod 16 of central shaft 3 is descending, and connecting rod 16 is promotedAnchor fluke 15 opens to grappling radial direction through hole 14 outsides, and anchor fluke 15 is eaten into the borehole wall, and well head applies sleeve pipe prestressing force, and anchor fluke 15 is firmBe stuck in the borehole wall, sleeve pipe is fixed in well, complete special cementing.
Claims (10)
1. a thermal production well earth anchor, is characterized in that comprising upper body, sliding sleeve, central shaft and lower body, the bottom of upper bodyInner side is fixedly installed togather with the upper outside of lower body, and the bottom of sliding sleeve and upper body are by the upper shear pin of at least oneNail is fixedly installed togather, and is fixed with upper ring plate in the lower inside of sliding sleeve, and the sliding sleeve inner side above upper ring plate is fixing limitedPosition plate, the center on limiting plate is provided with the fluid hole of up/down perforation, is provided with and can blocks up between limiting plate and upper ring plateThe float collar core body of living fluid hole, the outside of the float collar core body above upper ring plate is set with Compress Spring, the bottom of float collar core bodyThrough upper ring plate, under the upper body inner side between sliding sleeve and lower body is installed with by the down cut pin of at least oneRing flat-plate has spacing between float collar core body and lower ring plate, between lower ring plate and lower body, has spacing, the inner side of lower ring plate with inThe upper outside of axle is fixed together, and is distributed with the grappling radial direction through hole of at least two on lower body along even circumferential,In lower body, be hinged with the anchor fluke identical with grappling radial direction through hole quantity, each grappling radial direction through hole all has an anchor fluke and itsInside and outside corresponding, anchor fluke can be towards opening with the outside of grappling radial direction through hole corresponding inside and outside it, in the bottom of central shaft and eachBetween the top of anchor fluke, be all hinged with connecting rod, on upper ring plate, be intervally distributed with the upper flowing hole of up/down perforation, on lower ring plateBe intervally distributed with the lower flowing hole of up/down perforation.
2. thermal production well earth anchor according to claim 1, is characterized in that the axis direction of central shaft is provided with opening courtOn blind hole, have in the side of central shaft the radial guiding discharge orifice communicating with blind hole along circumferentially-spaced.
3. thermal production well earth anchor according to claim 1 and 2, is characterized in that float valve core body comprises mushroom head, mushroomThe bottom of head is fixed with valve rod, and longitudinal cross-section, the bottom width of mushroom head is greater than the internal diameter of upper ring plate, and the diameter of valve rod is not more thanThe internal diameter of upper ring plate, Compress Spring is sleeved on the outside of valve rod, is provided with join corresponding with mushroom head at the bottom face of limiting plateClose concave station, mushroom head holds out against in cooperation concave station.
4. thermal production well earth anchor according to claim 1 and 2, the upper end that it is characterized in that anchor fluke is provided with and is interior lower outside upperThe skewed face that holds out against, the top end face in grappling radial direction through hole has the guiding face upper and lower corresponding with holding out against face.
5. thermal production well earth anchor according to claim 3, the upper end that it is characterized in that anchor fluke is provided with and is interior lower outside updipThe tiltedly face that holds out against of shape, the top end face in grappling radial direction through hole has the guiding face upper and lower corresponding with holding out against face.
6. according to the thermal production well earth anchor described in claim 1 or 2 or 5, it is characterized in that upper outside and the upper body of sliding sleeveUpper inner be installed together by the sealing of at least one sealing ring.
7. thermal production well earth anchor according to claim 3, is characterized in that the upper outside of sliding sleeve and the top of upper bodyInner side is installed together by least one sealing ring sealing.
8. thermal production well earth anchor according to claim 4, is characterized in that the upper outside of sliding sleeve and the top of upper bodyInner side is installed together by least one sealing ring sealing.
9. according to the thermal production well earth anchor described in claim 1 or 2 or 5 or 7 or 8, it is characterized in that the lower inside of upper bodyBe fixedly installed togather by screw thread with the upper outside of lower body, the inner side of lower ring plate and the upper outside of central shaft are passed through spiral shellLine is fixedly installed togather, and in lower body, is hinged with the anchor fluke identical with grappling radial direction through hole quantity by hinge pin,Between the bottom of central shaft and the top of each anchor fluke, be all hinged with connecting rod by hinge pin, on the upper body above sliding sleeveThere is internal thread.
10. according to the thermal production well earth anchor described in claim 3 or 4 or 6, it is characterized in that the lower inside of upper body and lowerThe upper outside of body is fixedly installed togather by screw thread, and the inner side of lower ring plate and the upper outside of central shaft are fixed by screw threadBe installed together, in lower body, be hinged with the anchor fluke identical with grappling radial direction through hole quantity by hinge pin, at central shaftBottom and the top of each anchor fluke between be all hinged with connecting rod by hinge pin, on the upper body above sliding sleeve, have interior spiral shellLine.
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 true CN105604511A (en) | 2016-05-25 |
| CN105604511B 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) |
Cited By (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 |
| CN114109318A (en) * | 2020-08-27 | 2022-03-01 | 中国石油化工股份有限公司 | Swabbing device and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2809273A1 (en) * | 2010-04-22 | 2011-10-22 | Angela Lee Vandeponseele | Hanger assembly and system including hanger assembly and heater string |
| 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 |
| 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 |
| 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 |
| 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
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2809273A1 (en) * | 2010-04-22 | 2011-10-22 | Angela Lee Vandeponseele | Hanger assembly and system including hanger assembly and heater string |
| 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 |
| 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 |
| 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 |
| 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 |
Cited By (3)
| 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 |
| CN114109318A (en) * | 2020-08-27 | 2022-03-01 | 中国石油化工股份有限公司 | Swabbing device and method |
| CN114109318B (en) * | 2020-08-27 | 2024-05-07 | 中国石油化工股份有限公司 | Pumping device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105604511B (en) | 2018-03-02 |
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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. |