CN102011563B - Randomly positioned float collar - Google Patents
Randomly positioned float collar Download PDFInfo
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- CN102011563B CN102011563B CN 201010551535 CN201010551535A CN102011563B CN 102011563 B CN102011563 B CN 102011563B CN 201010551535 CN201010551535 CN 201010551535 CN 201010551535 A CN201010551535 A CN 201010551535A CN 102011563 B CN102011563 B CN 102011563B
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- pushing cylinder
- packing
- slips
- rubber sleeve
- float collar
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Abstract
The invention relates to the technical field of float collars, in particular to a randomly positioned float collar which comprises a body, an upper slip pushing drum, a lower slip pushing drum, an upper packer rubber pushing drum, a lower packer rubber pushing drum, outer sleeves, bidirectional slips, a hemispherical rod check valve and a unidirectional pressure valve, wherein the unidirectional pressure valve is fixedly installed at the top of the body; an upper baffle and a lower baffle are respectively installed outside the upper end and the lower end of the body fixedly; an upper packer rubber, the upper packer rubber pushing drum and the upper slip pushing drum are successively sleeved on the body below the upper baffle from top to bottom; and the upper packer rubber pushing drum and the upper slip pushing drum are spaced. The float collar has reasonable and compact structure, is convenient to use and can be fixed on the inner wall of the casing by the bidirectional slips, thus avoiding threaded connection between the float collar and the casing, and the float collar can be placed in any designed position in the casing string, without using the short casing to regulate position, thus greatly improving the installation and use efficiency.
Description
Technical field
The present invention relates to the float collar technical field, is a kind of with the position float collar.
Background technology
Well cementing operation be unable to do without float collar, and conventional float collar will be threadedly connected between two sleeve pipes by male and female usually, if run into special button-type, especially right and wrong API normal sleeve button-type, processing producer is few, and difficulty is large, expense is high, brings difficulty for normal setting of casing and well cementing operation; As adjusting by a small margin the float collar position, then need to process suitable short sleeve and regulate in addition.
Summary of the invention
The invention provides a kind ofly with the position float collar, overcome the deficiency of above-mentioned prior art, it can effectively solve relatively difficulty and adjust the location comparison hard problem of float collar in sleeve pipe of existing float collar processing unusual casing button.
Technical scheme of the present invention realizes by following measures: a kind of with the position float collar, comprise body, upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder, lower packing packing element pushing cylinder, outer sleeve, bi-directional slip, half club ball-and-seat and the unidirectional valve of suppressing; Be installed with the unidirectional valve of suppressing at the top of body, the outside, top and bottom at body is installed with respectively overhead gage and lower baffle plate, sequentially be set with packing rubber sleeve on the body below the overhead gage from top to bottom, upper packing rubber sleeve pushing cylinder and upper slips pushing cylinder, between upper packing rubber sleeve pushing cylinder and upper slips pushing cylinder, spacing is arranged, the bottom of upper slips pushing cylinder is taper type wide at the top and narrow at the bottom, on the body above the lower baffle plate, sequentially be set with lower packing packing element from bottom to top, lower packing packing element pushing cylinder and lower slips pushing cylinder, between lower packing packing element pushing cylinder and lower slips pushing cylinder, spacing is arranged, the top of lower slips pushing cylinder is taper type wide at the top and narrow at the bottom, there is boss at middle part at body, the inner middle part of at least two bi-directional slips spaced apart is sleeved on the boss and starts shear pin by slips and is fixed on the boss, the medial surface of bi-directional slip is the arcwall face of narrow two hem widths in middle part, and the top of the bottom of upper slips pushing cylinder and lower slips pushing cylinder is stuck in the medial surface of bi-directional slip; At the upper slips pushing cylinder, the lower slips pushing cylinder, the outside of upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder is installed with outer sleeve by upper shear pin group and down cut pin group, at outer sleeve the opening corresponding with bi-directional slip arranged, outer sleeve, form the pressure transmission chamber between upper packing rubber sleeve pushing cylinder and the upper slips pushing cylinder, outer sleeve, form the pressure transmission chamber between lower packing packing element pushing cylinder and the lower slips pushing cylinder, the hydraulic pressure transfer passage is arranged on body vertically, at body the circulation port that communicates with hydraulic pressure transfer passage and pressure transmission chamber is respectively arranged, in the lower end of body, be installed with half club ball-and-seat.
The below is the further optimization and/or improvements to the foregoing invention technical scheme:
Can be separately installed with expandable washer on the body between above-mentioned upper packing rubber sleeve and overhead gage and the upper packing rubber sleeve pushing cylinder, be separately installed with expandable washer on the body between lower packing packing element and lower baffle plate and the lower packing packing element pushing cylinder.
Can there be cone tank wide at the top and narrow at the bottom the inboard of above-mentioned upper slips pushing cylinder, and the retaining steel ball that can withstand body is installed in cone tank; In the inboard of lower slips pushing cylinder up-narrow and down-wide cone tank is arranged, the retaining steel ball that can withstand body is installed in cone tank; In the inboard of upper packing rubber sleeve pushing cylinder up-narrow and down-wide cone tank is arranged, the retaining steel ball that can withstand body is installed in cone tank; There is cone tank wide at the top and narrow at the bottom inboard at lower packing packing element pushing cylinder, and the retaining steel ball that can withstand body is installed in cone tank.
Can be separately installed with sealing ring between above-mentioned upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the body.
Can be separately installed with sealing ring between above-mentioned upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the outer sleeve.
Above-mentioned half club ball-and-seat can be fixedly mounted in the lower end of body by screw thread.
Reasonable and compact in structure of the present invention, easy to use, can with being fixed on internal surface of sleeve pipe with the position float collar, avoid being threaded between float collar and the sleeve pipe by bi-directional slip, should can be placed in any design attitude in the bunch tube with the position float collar, and not need to use short sleeve to carry out position adjustments; Therefore greatly improved and installed and used efficient.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of most preferred embodiment of the present invention.
Coding in the accompanying drawing is respectively: 1 is body, and 2 is the upper slips pushing cylinder, and 3 is the lower slips pushing cylinder, 4 is upper packing rubber sleeve pushing cylinder, and 5 is lower packing packing element pushing cylinder, and 6 is outer sleeve, 7 is bi-directional slip, and 8 is half club ball-and-seat, and 9 are the unidirectional valve of suppressing, 10 is overhead gage, and 11 is lower baffle plate, and 12 is upper packing rubber sleeve, 13 is lower packing packing element, and 14 is boss, and 15 are slips startup shear pin, 16 is upper shear pin group, and 17 is down cut pin group, and 18 is opening, 19 are the pressure transmission chamber, 20 is the hydraulic pressure transfer passage, and 21 is circulation port, and 22 is expandable washer, 23 is cone tank, 24 is the retaining steel ball, and 25 is sealing ring, and 26 is exterior tubing.
The specific embodiment
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
In the present invention, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
The invention will be further described below in conjunction with embodiment and accompanying drawing:
As shown in Figure 1, should comprise body 1, upper slips pushing cylinder 2, lower slips pushing cylinder 3, upper packing rubber sleeve pushing cylinder 4, lower packing packing element pushing cylinder 5, outer sleeve 6, bi-directional slip 7, half club ball-and-seat 8 and the unidirectional valve 9 of suppressing with the position float collar; Be installed with the unidirectional valve 9 of suppressing at the top of body 1, the outside, top and bottom at body 1 is installed with respectively overhead gage 10 and lower baffle plate 11, sequentially be set with packing rubber sleeve 12 on the body 1 below the overhead gage 10 from top to bottom, upper packing rubber sleeve pushing cylinder 4 and upper slips pushing cylinder 2, between upper packing rubber sleeve pushing cylinder 4 and upper slips pushing cylinder 2, spacing is arranged, the bottom of upper slips pushing cylinder 2 is taper type wide at the top and narrow at the bottom, on the body 1 above the lower baffle plate 11, sequentially be set with lower packing packing element 13 from bottom to top, lower packing packing element pushing cylinder 5 and lower slips pushing cylinder 3, between lower packing packing element pushing cylinder 5 and lower slips pushing cylinder 3, spacing is arranged, the top of lower slips pushing cylinder 5 is taper type wide at the top and narrow at the bottom, at the middle part of body 1 boss 14 is arranged, the inner middle part of at least two bi-directional slips spaced apart 7 is sleeved on the boss 14 and starts shear pin 15 by slips and is fixed on the boss 14, the medial surface of bi-directional slip 7 is the arcwall face of narrow two hem widths in middle part, and the top of the bottom of upper slips pushing cylinder 2 and lower slips pushing cylinder 3 is stuck in the medial surface of bi-directional slip 7; At upper slips pushing cylinder 2, lower slips pushing cylinder 3, the outside of upper packing rubber sleeve pushing cylinder 4 and lower packing packing element pushing cylinder 5 is installed with outer sleeve 6 by upper shear pin group 16 and down cut pin group 17, at outer sleeve 6 opening 18 corresponding with bi-directional slip 7 arranged, outer sleeve 6, form pressure transmission chamber 19 between upper packing rubber sleeve pushing cylinder 4 and the upper slips pushing cylinder 2, outer sleeve 6, form pressure transmission chamber 19 between lower packing packing element pushing cylinder 5 and the lower slips pushing cylinder 3, hydraulic pressure transfer passage 20 is arranged on body 1 vertically, the circulation port 21 that communicates with hydraulic pressure transfer passage 20 and pressure transmission chamber 19 is respectively arranged at body 1, in the lower end of body 1, be installed with half club ball-and-seat 8, wherein, half club ball-and-seat 8 and the unidirectional valve 9 of suppressing are existing known equipment, the direction of half club ball-and-seat 8 can be exchanged, realizing forward and oppositely float collar effect, the unidirectional valve 9 of suppressing can realize suppressing internal pressure shutoff after finishing.
Can according to actual needs, make further optimization and/or improvements with the position float collar above-mentioned:
As shown in Figure 1, be separately installed with expandable washer 22 on the body 1 between upper packing rubber sleeve 12 and overhead gage 10 and the upper packing rubber sleeve pushing cylinder 4, be separately installed with expandable washer 22 on the body 1 between lower packing packing element 13 and lower baffle plate 11 and the lower packing packing element pushing cylinder 5.
As shown in Figure 1, there is cone tank wide at the top and narrow at the bottom 23 inboard of upper slips pushing cylinder 2, and the retaining steel ball 24 that can withstand body 1 is installed in cone tank 23; In the inboard of lower slips pushing cylinder 3 up-narrow and down-wide cone tank 23 is arranged, the retaining steel ball 24 that can withstand body 1 is installed in cone tank 23; In the inboard of upper packing rubber sleeve pushing cylinder 4 up-narrow and down-wide cone tank 23 is arranged, the retaining steel ball 24 that can withstand body 1 is installed in cone tank 23; There is cone tank wide at the top and narrow at the bottom 23 inboard at lower packing packing element pushing cylinder 5, the retaining steel ball 24 that can withstand body 1 is installed in cone tank 23, like this, can prevent the resilience and potential safety hazard occurs after pressure release of upper slips pushing cylinder 2, lower slips pushing cylinder 3, upper packing rubber sleeve pushing cylinder 4, lower packing packing element pushing cylinder 5.
As shown in Figure 1, in order to increase sealing, be separately installed with sealing ring 25 between upper slips pushing cylinder 2, lower slips pushing cylinder 3, upper packing rubber sleeve pushing cylinder 4 and lower packing packing element pushing cylinder 5 and the body 1.
As shown in Figure 1, in order to increase sealing, be separately installed with sealing ring 25 between upper slips pushing cylinder 2, lower slips pushing cylinder 3, upper packing rubber sleeve pushing cylinder 4 and lower packing packing element pushing cylinder 5 and the outer sleeve 6.
As shown in Figure 1, for the ease of installation and removal, half club ball-and-seat 8 is fixedly mounted in the lower end of body 1 by screw thread.
Above technical characterictic has consisted of most preferred embodiment of the present invention, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
The use procedure of most preferred embodiment of the present invention: during use, first adjust as required half club ball-and-seat 8 forward or backwards, the internal surface of sleeve pipe of the placement location that the cleaning design needs, the present invention is positioned over inside pipe casing after the cleaning, by exterior tubing 26 injection liquid force feeds, during the first design pressure value that builds the pressure (slips starts shear pin 15 values of breaking), pressure promotes respectively upper slips pushing cylinder 2 and lower slips pushing cylinder 3 to bi-directional slip 7 one side shiftings, make bi-directional slip 7 outer squeezing, the teeth of bi-directional slip 7 internal surface of sleeve pipe of nipping, thereby fixing position of the present invention; The pressure of cutting off of upper shear pin group 16 and down cut pin group 17 continues to build the pressure, shear pin group 16 and down cut pin group 17 are cut off, then upper slips pushing cylinder 2 and lower slips pushing cylinder 3 are distinguished extrusion expansion packing rings 22, upper packing rubber sleeve 12 and lower packing packing element 13, make packing rubber sleeve 12 and lower packing packing element 13 be squeezed the external diameter change greatly, annular space between shutoff outer sleeve inwall and the present invention, realize the sealing of annular space, voltage stabilizing number minute, guarantee sealing effectiveness, lay down pressure, remove exterior tubing 26 and get final product.
Claims (10)
1. one kind with the position float collar, it is characterized in that comprising body, upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder, lower packing packing element pushing cylinder, outer sleeve, bi-directional slip, half club ball-and-seat and the unidirectional valve of suppressing; Be installed with the unidirectional valve of suppressing at the top of body, the outside, top and bottom at body is installed with respectively overhead gage and lower baffle plate, sequentially be set with packing rubber sleeve on the body below the overhead gage from top to bottom, upper packing rubber sleeve pushing cylinder and upper slips pushing cylinder, between upper packing rubber sleeve pushing cylinder and upper slips pushing cylinder, spacing is arranged, the bottom of upper slips pushing cylinder is taper type wide at the top and narrow at the bottom, on the body above the lower baffle plate, sequentially be set with lower packing packing element from bottom to top, lower packing packing element pushing cylinder and lower slips pushing cylinder, between lower packing packing element pushing cylinder and lower slips pushing cylinder, spacing is arranged, the top of lower slips pushing cylinder is up-narrow and down-wide taper type, there is boss at middle part at body, the inner middle part of at least two bi-directional slips spaced apart is sleeved on the boss and starts shear pin by slips and is fixed on the boss, the medial surface of bi-directional slip is the arcwall face of narrow two hem widths in middle part, and the top of the bottom of upper slips pushing cylinder and lower slips pushing cylinder is stuck in the medial surface of bi-directional slip; At the upper slips pushing cylinder, the lower slips pushing cylinder, the outside of upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder is installed with outer sleeve by upper shear pin group and down cut pin group, at outer sleeve the opening corresponding with bi-directional slip arranged, outer sleeve, form the pressure transmission chamber between upper packing rubber sleeve pushing cylinder and the upper slips pushing cylinder, outer sleeve, form the pressure transmission chamber between lower packing packing element pushing cylinder and the lower slips pushing cylinder, the hydraulic pressure transfer passage is arranged on body vertically, have respectively and the hydraulic pressure transfer passage at body, the circulation port that the pressure transmission chamber communicates is installed with half club ball-and-seat in the lower end of body.
2. according to claim 1 with the position float collar, it is characterized in that being separately installed with expandable washer on the body between packing rubber sleeve and overhead gage and the upper packing rubber sleeve pushing cylinder, be separately installed with expandable washer on the body between lower packing packing element and lower baffle plate and the lower packing packing element pushing cylinder.
3. according to claim 1 and 2 with the position float collar, it is characterized in that there is cone tank wide at the top and narrow at the bottom the inboard of upper slips pushing cylinder, the retaining steel ball that can withstand body is installed in cone tank; In the inboard of lower slips pushing cylinder up-narrow and down-wide cone tank is arranged, the retaining steel ball that can withstand body is installed in cone tank; In the inboard of upper packing rubber sleeve pushing cylinder up-narrow and down-wide cone tank is arranged, the retaining steel ball that can withstand body is installed in cone tank; There is cone tank wide at the top and narrow at the bottom inboard at lower packing packing element pushing cylinder, and the retaining steel ball that can withstand body is installed in cone tank.
4. according to claim 1 and 2 with the position float collar, it is characterized in that being separately installed with sealing ring between upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the body.
5. according to claim 3 with the position float collar, it is characterized in that being separately installed with sealing ring between upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the body.
6. according to claim 1 and 2 with the position float collar, it is characterized in that being separately installed with sealing ring between upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the outer sleeve.
7. according to claim 3 with the position float collar, it is characterized in that being separately installed with sealing ring between upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the outer sleeve.
8. according to claim 4 with the position float collar, it is characterized in that being separately installed with sealing ring between upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the outer sleeve.
9. according to claim 5 with the position float collar, it is characterized in that being separately installed with sealing ring between upper slips pushing cylinder, lower slips pushing cylinder, upper packing rubber sleeve pushing cylinder and lower packing packing element pushing cylinder and the outer sleeve.
10. according to claim 9 with the position float collar, it is characterized in that half club ball-and-seat is fixedly mounted in the lower end of body by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010551535 CN102011563B (en) | 2010-11-20 | 2010-11-20 | Randomly positioned float collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010551535 CN102011563B (en) | 2010-11-20 | 2010-11-20 | Randomly positioned float collar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102011563A CN102011563A (en) | 2011-04-13 |
| CN102011563B true CN102011563B (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010551535 Active CN102011563B (en) | 2010-11-20 | 2010-11-20 | Randomly positioned float collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011563B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236230A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团渤海钻探工程有限公司 | A kind of magnesium-base metal dissolvable bridge plug |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756741B (en) * | 2020-06-05 | 2023-06-13 | 中国石油化工股份有限公司 | Small-volume soluble bridge plug and application thereof |
| CN113153214B (en) * | 2021-03-24 | 2022-03-29 | 大庆市天德忠石油科技有限公司 | Sealing structure for soluble bridge plug |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB516026A (en) * | 1938-06-27 | 1939-12-20 | William Warren Triggs | An improved appliance for use in packing-off, cementing, repressuring and other operations in wells |
| CN2614264Y (en) * | 2003-04-29 | 2004-05-05 | 大庆石油管理局 | Ultra deep well float collar and float shoe |
| RU2343272C2 (en) * | 2007-01-12 | 2009-01-10 | Открытое акционерное общество "Нефтяная компания "ЛУКОЙЛ" | Cementing valve of casing string |
| CN101781977A (en) * | 2010-01-11 | 2010-07-21 | 中国石油化工股份有限公司 | Bidirectional high-pressure detachable bridge plug |
| CN201851075U (en) * | 2010-11-20 | 2011-06-01 | 中国石油集团西部钻探工程有限公司 | Unlimited-position float collar |
-
2010
- 2010-11-20 CN CN 201010551535 patent/CN102011563B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB516026A (en) * | 1938-06-27 | 1939-12-20 | William Warren Triggs | An improved appliance for use in packing-off, cementing, repressuring and other operations in wells |
| CN2614264Y (en) * | 2003-04-29 | 2004-05-05 | 大庆石油管理局 | Ultra deep well float collar and float shoe |
| RU2343272C2 (en) * | 2007-01-12 | 2009-01-10 | Открытое акционерное общество "Нефтяная компания "ЛУКОЙЛ" | Cementing valve of casing string |
| CN101781977A (en) * | 2010-01-11 | 2010-07-21 | 中国石油化工股份有限公司 | Bidirectional high-pressure detachable bridge plug |
| CN201851075U (en) * | 2010-11-20 | 2011-06-01 | 中国石油集团西部钻探工程有限公司 | Unlimited-position float collar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236230A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团渤海钻探工程有限公司 | A kind of magnesium-base metal dissolvable bridge plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102011563A (en) | 2011-04-13 |
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| C14 | Grant of patent or utility model | ||
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| CP02 | Change in the address of a patent holder |
Address after: 834000 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 after: CNPC Xibu Drilling Engineering Company Limited Address before: 834000 the Xinjiang Uygur Autonomous Region Karamay Hongyan Road No. 80 West Karamay Drilling Drilling Technology Research Institute Patentee before: CNPC Xibu Drilling Engineering Company Limited |
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