CN201851075U - Unlimited-position float collar - Google Patents
Unlimited-position float collar Download PDFInfo
- Publication number
- CN201851075U CN201851075U CN2010206157225U CN201020615722U CN201851075U CN 201851075 U CN201851075 U CN 201851075U CN 2010206157225 U CN2010206157225 U CN 2010206157225U CN 201020615722 U CN201020615722 U CN 201020615722U CN 201851075 U CN201851075 U CN 201851075U
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- pushing cylinder
- packing
- slips
- rubber sleeve
- float collar
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Abstract
The utility model relates to the technical field of a float collar, in particular to an unlimited-position float collar which comprises a body, an upper slip push cylinder, a lower slip push cylinder, an upper rubber packer push cylinder, a lower rubber packer push cylinder, an outer sleeve, a directional slip, a semi-ball-stem check valve and a one-way compression valve, wherein the one-way compression valve is fixedly arranged at the top of the body; the outer sides of the upper end and the lower end of the body are fixedly provided with an upper baffle plate and a lower baffle plate respectively; the body below the upper baffle plate is sheathed with an upper rubber packer, the upper rubber packer push cylinder and the upper slip push cylinder in sequence from top to bottom; and an interval is left between the upper rubber packer push cylinder and the upper slip push cylinder. The unlimited-position float collar is reasonable and compact in structure and convenient to use; by the directional slip, the unlimited-position float collar can be fixed at the inner wall of a casing, so that the threaded connection between the float collar and the casing is avoided; and the unlimited-position float collar can be placed at any design position in a casing string, the use of a short casing for position adjustment is not needed, therefore, the installation efficiency and the using efficiency are greatly improved.
Description
Technical field
The utility model 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 big, the expense height brings difficulty for normal setting of casing and well cementing operation; As adjusting the float collar position by a small margin, then need to process suitable short sleeve and regulate in addition.
Summary of the invention
It is a kind of with the position float collar that the utility model provides, and overcome the deficiency of above-mentioned prior art, and it can effectively solve the relatively relatively more difficult problem of difficulty and the position of adjustment float collar in sleeve pipe of float collar processing unusual casing button that has now.
The technical solution of the utility model realizes by following measure: a kind of with the position float collar, comprise body, upper slips pushing cylinder, lower slips pushing cylinder, last packing rubber sleeve pushing cylinder, following packing packing element pushing cylinder, outer sleeve, bi-directional slip, hemisphere bar 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 overhead gage and lower baffle plate respectively, be set with packing rubber sleeve on the body below the overhead gage from top to bottom in regular turn, last packing rubber sleeve pushing cylinder and upper slips pushing cylinder, between last 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, be set with packing packing element down from bottom to top in regular turn, following packing packing element pushing cylinder and lower slips pushing cylinder, between packing packing element pushing cylinder and the lower slips pushing cylinder spacing is being arranged down, 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 last packing rubber sleeve pushing cylinder and following packing packing element pushing cylinder is installed with outer sleeve by last shear pin group and down cut pin group, on outer sleeve, have and the corresponding opening of bi-directional slip, outer sleeve, form the pressure transmission chamber between last packing rubber sleeve pushing cylinder and the upper slips pushing cylinder, outer sleeve, form the pressure transmission chamber between following packing packing element pushing cylinder and the lower slips pushing cylinder, the hydraulic pressure transfer passage is arranged on body vertically, the circulation port that communicates with hydraulic pressure transfer passage and pressure transmission chamber is respectively arranged on body, in the lower end of body, be installed with hemisphere bar ball-and-seat.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Can be separately installed with expandable washer on the above-mentioned body of going up between packing rubber sleeve and overhead gage and the last packing rubber sleeve pushing cylinder, be separately installed with expandable washer on the body between following packing packing element and lower baffle plate and the following 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 last 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 following 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, last packing rubber sleeve pushing cylinder and following 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, last packing rubber sleeve pushing cylinder and following packing packing element pushing cylinder and the outer sleeve.
Above-mentioned hemisphere bar ball-and-seat can be fixedly mounted in the lower end of body by screw thread.
The utility model reasonable and compact in structure, easy to use, can will should be fixed on internal surface of sleeve pipe by bi-directional slip with the position float collar, avoided being threaded between float collar and the sleeve pipe, 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 the utility model most preferred embodiment.
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 last packing rubber sleeve pushing cylinder, and 5 are following packing packing element pushing cylinder, and 6 is outer sleeve, 7 is bi-directional slip, and 8 is hemisphere bar ball-and-seat, and 9 are the unidirectional valve of suppressing, 10 is overhead gage, and 11 is lower baffle plate, and 12 is last packing rubber sleeve, 13 are following packing packing element, and 14 is boss, and 15 is that slips starts shear pin, 16 is last 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 utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, 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 relation of upper and lower, left and right etc. is what to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this comprise body 1, upper slips pushing cylinder 2, lower slips pushing cylinder 3, went up packing rubber sleeve pushing cylinder 4, descend packing packing element pushing cylinder 5, outer sleeve 6, bi-directional slip 7, hemisphere bar 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 overhead gage 10 and lower baffle plate 11 respectively, be set with packing rubber sleeve 12 on the body below the overhead gage 10 1 from top to bottom in regular turn, last packing rubber sleeve pushing cylinder 4 and upper slips pushing cylinder 2, between last 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 above the lower baffle plate 11 1, be set with packing packing element 13 down from bottom to top in regular turn, following packing packing element pushing cylinder 5 and lower slips pushing cylinder 3, between packing packing element pushing cylinder 5 and the lower slips pushing cylinder 3 spacing is being arranged down, 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 last packing rubber sleeve pushing cylinder 4 and following packing packing element pushing cylinder 5 is installed with outer sleeve 6 by last shear pin group 16 and down cut pin group 17, on outer sleeve 6, have and bi-directional slip 7 corresponding openings 18, outer sleeve 6, form pressure transmission chamber 19 between last packing rubber sleeve pushing cylinder 4 and the upper slips pushing cylinder 2, outer sleeve 6, form pressure transmission chamber 19 between following 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 on body 1, in the lower end of body 1, be installed with hemisphere bar ball-and-seat 8, wherein, hemisphere bar ball-and-seat 8 and the unidirectional valve 9 of suppressing are existing known equipment, the direction of hemisphere bar 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 make further optimization and/or improvements with the position float collar above-mentioned according to actual needs:
As shown in Figure 1, be separately installed with expandable washer 22 on the body 1 between last packing rubber sleeve 12 and overhead gage 10 and the last packing rubber sleeve pushing cylinder 4, be separately installed with expandable washer 22 on the body 1 between following packing packing element 13 and lower baffle plate 11 and the following 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 last 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 following 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 upper slips pushing cylinder 2, lower slips pushing cylinder 3, go up packing rubber sleeve pushing cylinder 4, packing packing element pushing cylinder 5 resilience and potential safety hazard occurs after pressure release down.
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, last packing rubber sleeve pushing cylinder 4 and following 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, last packing rubber sleeve pushing cylinder 4 and following packing packing element pushing cylinder 5 and the outer sleeve 6.
As shown in Figure 1, for the ease of installation and removal, hemisphere bar ball-and-seat 8 is fixedly mounted in the lower end of body 1 by screw thread.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: during use, earlier adjust hemisphere bar ball-and-seat 8 as required forward or backwards, the internal surface of sleeve pipe of the placement location that the cleaning design needs, the utility model is positioned over inside pipe casing after the cleaning, inject hydraulic oil by exterior tubing 26, during the first design pressure value that builds the pressure (slips starts shear pin 15 values of breaking), pressure promotes upper slips pushing cylinder 2 and lower slips pushing cylinder 3 respectively 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 utility model; The pressure of cutting off of last 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, are gone up packing rubber sleeve 12 and following packing packing element 13, make packing rubber sleeve 12 and following packing packing element 13 be squeezed the external diameter change greatly, annular space between shutoff outer sleeve inwall and the utility model, 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, goes up the packing rubber sleeve pushing cylinder, packing packing element pushing cylinder, outer sleeve, bi-directional slip, hemisphere bar ball-and-seat and the unidirectional valve of suppressing down; Be installed with the unidirectional valve of suppressing at the top of body, the outside, top and bottom at body is installed with overhead gage and lower baffle plate respectively, be set with packing rubber sleeve on the body below the overhead gage from top to bottom in regular turn, last packing rubber sleeve pushing cylinder and upper slips pushing cylinder, between last 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, be set with packing packing element down from bottom to top in regular turn, following packing packing element pushing cylinder and lower slips pushing cylinder, between packing packing element pushing cylinder and the lower slips pushing cylinder spacing is being arranged down, 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 last packing rubber sleeve pushing cylinder and following packing packing element pushing cylinder is installed with outer sleeve by last shear pin group and down cut pin group, on outer sleeve, have and the corresponding opening of bi-directional slip, outer sleeve, form the pressure transmission chamber between last packing rubber sleeve pushing cylinder and the upper slips pushing cylinder, outer sleeve, form the pressure transmission chamber between following packing packing element pushing cylinder and the lower slips pushing cylinder, the hydraulic pressure transfer passage is arranged on body vertically, on body, have respectively and the hydraulic pressure transfer passage, the circulation port that the pressure transmission chamber communicates is installed with hemisphere bar 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 last packing rubber sleeve pushing cylinder, be separately installed with expandable washer on the body between following packing packing element and lower baffle plate and the following 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 last 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 following 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, last packing rubber sleeve pushing cylinder and following 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, last packing rubber sleeve pushing cylinder and following 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, last packing rubber sleeve pushing cylinder and following 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, last packing rubber sleeve pushing cylinder and following 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, last packing rubber sleeve pushing cylinder and following 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, last packing rubber sleeve pushing cylinder and following packing packing element pushing cylinder and the outer sleeve.
10. according to claim 9 with the position float collar, it is characterized in that hemisphere bar 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 |
|---|---|---|---|
| CN2010206157225U CN201851075U (en) | 2010-11-20 | 2010-11-20 | Unlimited-position float collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206157225U CN201851075U (en) | 2010-11-20 | 2010-11-20 | Unlimited-position float collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851075U true CN201851075U (en) | 2011-06-01 |
Family
ID=44093474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206157225U Expired - Lifetime CN201851075U (en) | 2010-11-20 | 2010-11-20 | Unlimited-position float collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851075U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011563A (en) * | 2010-11-20 | 2011-04-13 | 中国石油集团西部钻探工程有限公司 | Randomly positioned float collar |
| CN110067528A (en) * | 2019-04-11 | 2019-07-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of injecting cement in oil well method and single current cementing tool |
| CN114165188A (en) * | 2020-09-10 | 2022-03-11 | 中国石油天然气股份有限公司 | Packer and using method thereof |
-
2010
- 2010-11-20 CN CN2010206157225U patent/CN201851075U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011563A (en) * | 2010-11-20 | 2011-04-13 | 中国石油集团西部钻探工程有限公司 | Randomly positioned float collar |
| CN102011563B (en) * | 2010-11-20 | 2013-04-03 | 中国石油集团西部钻探工程有限公司 | Randomly positioned float collar |
| CN110067528A (en) * | 2019-04-11 | 2019-07-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of injecting cement in oil well method and single current cementing tool |
| CN114165188A (en) * | 2020-09-10 | 2022-03-11 | 中国石油天然气股份有限公司 | Packer and using method thereof |
| CN114165188B (en) * | 2020-09-10 | 2023-07-25 | 中国石油天然气股份有限公司 | Packer and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110601 Effective date of abandoning: 20130403 |
|
| RGAV | Abandon patent right to avoid regrant |