CN205135541U - It binds round in grades to exempt from to bore hydraulic pressure - Google Patents
It binds round in grades to exempt from to bore hydraulic pressure Download PDFInfo
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- CN205135541U CN205135541U CN201520832284.0U CN201520832284U CN205135541U CN 205135541 U CN205135541 U CN 205135541U CN 201520832284 U CN201520832284 U CN 201520832284U CN 205135541 U CN205135541 U CN 205135541U
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Abstract
(B, ) the utility model relates to a cement the well and screen pipe crest water flooding mud well cementation technical field in grades in the oil field, an it binds round in grades to exempt from to bore hydraulic pressure, which comprises a body, the top connection, the lower clutch, the borehole jack closes, the hole sliding sleeve closes, lower sliding sleeve and trompil cover, the body upper end inboard lower extreme outside fixed mounting with the top connection be in the same place, the inboard upper end outside fixed mounting with the lower clutch of lower extreme of body is in the same place, there is at least one circulation through -hole at middle part at the body along circumference radial distribution, body above the circulation through -hole is inboard through closing hole pin fixedly connected with pass borehole jack. The utility model has the advantages of reasonable and compact structure, make the gliding of trompil cover through suppressing to press, realize opening of circulation through -hole, through down for the thick liquid plug, promote to close the borehole jack and close the hole sliding sleeve down, the closed loop through -hole closes, and suppress to press to cut off and stop the pin, promote down the sliding sleeve for the thick liquid plug and walk to the shaft bottom with the trompil under overlapping. The device saves and bores the step of removing for the thick liquid plug, practices thrift manufacturing cost, and can not destroy sleeve pipe, safe and reliable. (B, )
Description
Technical field
The utility model relates to oil field fraclional well cementing and screen casing crest water flooding mud cementing technology field, is that one is exempted to bore hydraulic stage collar.
Background technology
Fraclional well cementing is a kind of completion mode that existing oil-gas field development is conventional, and sizing collar is mainly used in, in multigrade cement casing and cementing, reaching well cementation effect by segmental cement injection; China's oil drilling well development, drilling environment constantly changes, and difficulty also strengthens thereupon, and horizontal well, extended reach well increase.After the sizing collar fraclional well cementing that current existence is conventional, stay sizing collar inside for slurry plug, so need lower brill to bore except for slurry plug after solid completion, so both consume man-hour, add cost, also there is the risk destroying sleeve pipe.
Summary of the invention
The utility model provides one and exempts to bore hydraulic stage collar, overcomes the deficiency of above-mentioned prior art, and it needs lower boring except the problem for slurry plug after effectively solving existing solid completion.
The technical solution of the utility model is realized by following measures: one is exempted to bore hydraulic stage collar, comprise body, top connection, lower contact, close borehole jack, close hole sliding sleeve, low sleeve and perforate cover, be fixedly installed togather with the lower end outside of top connection inside body upper end, be fixedly installed togather outside the lower end inside of body and the upper end of lower contact, at least one circulation through hole is circumferentially radially distributed with at the middle part of body, relevant borehole jack is fixedly connected with by closing hole pin inside body above circulation through hole, close between the top of hole sliding sleeve and pass borehole jack and be fixed together by closing borehole jack pin, low sleeve is fixedly connected with by locking pin inside body below circulation through hole, the inner side of low sleeve is fixedly connected with perforate cover by shear pin, be installed with outside perforate set upper side and be enclosed within intrinsic retainer ring, steel ball fixed cover is installed with between perforate cover lower end and low sleeve, the inboard inner of steel ball fixed cover is embedded with the grappling steel ball for fixing perforate cover and low sleeve.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
Above-mentionedly also comprise stopping device, stopping device can comprise retaining steel ball; In the bottom of closing the top of borehole jack and low sleeve, axially spaced-apart is fixed with at least two retaining grooves wide at the top and narrow at the bottom respectively, is separately installed with at least one retaining steel ball in retaining groove.
The above-mentioned top closing borehole jack can be installed with the baffle plate being located at stopping device top, and baffle plate is fixedly installed togather by parting of baffle bolt with the top of closing borehole jack.
Above-mentioned can have conical external screw thread in top connection upper inner and lower contact lower outside; Or/and can be installed with stop pin inside body lower part, the body inside pin is provided with slippage slot radially together stopping, slippage slot internal fixtion is provided with retaining pin.
O RunddichtringO is installed with between above-mentioned body and top connection bottom, close borehole jack and close between the sliding sleeve of hole and be installed with y-type seal ring, space, the top internal fixtion of y-type seal ring is provided with O type circle, retainer ring respectively and body and perforate overlap between be installed with O RunddichtringO, O RunddichtringO is installed with between low sleeve and body, low sleeve and perforate are installed with y-type seal ring between overlapping, the bottom of perforate cover is installed with y-type seal ring, is provided with O RunddichtringO between the upper outside of lower contact and body.
Can there be internal thread the above-mentioned bottom at body; Or/and the lower outside of top connection can have external screw thread.
The utility model reasonable and compact in structure, easy to use, the pressure differential cut-out pin being overlapped upper and lower section by device open interior makes perforate overlap downslide, realizes the unlatching of circulation through hole, completes cementing and fix; By replacing slurry plug descending, borehole jack is closed in promotion and hole, pass sliding sleeve is descending, closes closed loop through hole, and under the effect of unlifting pressure, pass borehole jack cuts off stop pin, comes downwards to shaft bottom for slurry plug promotion low sleeve, perforate cover.The utility model can save the step of boring except for slurry plug, and time saving and energy saving, save production cost, labour intensity is low, can not destroy sleeve pipe, safe and reliable.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of the utility model most preferred embodiment looks half section structural representation.
Accompanying drawing 2 is the course of work schematic diagram one of the utility model most preferred embodiment.
Accompanying drawing 3 is the course of work schematic diagram two of the utility model most preferred embodiment.
Accompanying drawing 4 is the course of work schematic diagram three of the utility model most preferred embodiment.
Coding in accompanying drawing is respectively: 1 is body, and 2 is top connection, and 3 is lower contact, 4 for closing borehole jack, and 5 for closing hole sliding sleeve, and 6 is low sleeve, 7 is perforate cover, and 8 is circulation through hole, and 9 for closing borehole jack pin, 10 is retainer ring, and 11 is shear pin, and 12 is steel ball fixed cover, 13 is grappling steel ball, 14 is retaining steel ball, and 15 is retaining groove, and 16 is baffle plate, 17 is parting of baffle bolt, 18 for stopping pin, and 19 is retaining pin, and 20 is O RunddichtringO, 21 is y-type seal ring, 22 is O type circle, and 23 is locking pin, and 24 for closing hole pin.
Detailed description of the invention
The utility model by the restriction of following embodiment, can not 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 is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing, the utility model is further described:
As accompanying drawing 1, 2, 3, shown in 4, this is exempted to bore hydraulic stage collar and comprises body 1, top connection 2, lower contact 3, close borehole jack 4, close hole sliding sleeve 5, low sleeve 6 and perforate cover 7, be fixedly installed togather with the lower end outside of top connection 2 inside body 1 upper end, be fixedly installed togather outside the lower end inside of body 1 and the upper end of lower contact 3, at least one circulation through hole 8 is circumferentially radially distributed with at the middle part of body 1, relevant borehole jack 4 is fixedly connected with by closing hole pin 24 inside body 1 above circulation through hole 8, close between the top of hole sliding sleeve 5 and pass borehole jack 4 and be fixed together by closing borehole jack pin 9, low sleeve 6 is fixedly connected with by locking pin 23 inside body 1 below circulation through hole 8, the inner side of low sleeve 6 is fixedly connected with perforate cover 7 by shear pin 11, the retainer ring 10 being installed with outside 7 upper ends and being enclosed within body 1 is overlapped in perforate, the steel ball fixed cover 12 of at least two is installed at low sleeve 6 internal fixtion, the annular groove corresponding with steel ball fixed cover 12 is provided with outside perforate cover 7, Compress Spring is provided with in steel ball fixed cover 12, grappling steel ball 13 is fixed with in the inner of Compress Spring, the inner of grappling steel ball 13 is positioned at annular groove.This device is easy to use, cuts off locking pin 23 and makes perforate overlap downslide, realize the unlatching of circulation through hole 8, complete cementing and fix by the pressure differential of device open interior cover about 7 sections; By replacing slurry plug descending, borehole jack 4 is closed in promotion and hole, pass sliding sleeve 5 is descending, closes closed loop through hole 8, and under the effect of the pressure, pass borehole jack 4 is cut off and stopped pin 18, and for starching, plug promotes low sleeve 6, perforate is overlapped 7 and come downwards to shaft bottom.Whole process safety is reliable, and save the step of boring except for slurry plug, time saving and energy saving, save production cost, labour intensity is low, can not destroy sleeve pipe, safe and reliable.
According to actual needs, above-mentioned brill hydraulic stage collar of exempting from can be made further optimization and/or improvements:
As shown in Figure 1, also comprise stopping device, stopping device comprises retaining steel ball 14, and in the bottom of closing the top of borehole jack 4 and low sleeve 6, axially spaced-apart is fixed with at least two retaining grooves 15 wide at the top and narrow at the bottom respectively, is separately installed with at least one retaining steel ball 14 in retaining groove 15.Because retaining groove 15 is in conical socket wide at the top and narrow at the bottom, close borehole jack 4 after descending, retaining steel ball 14 is all deposited in upper wider annular groove, and closing borehole jack 4 can be freely descending and can not upward sliding; In like manner, low sleeve 6 also can be freely descending and can not upward sliding.
As shown in Figure 1, O RunddichtringO 20 is installed with between body 1 and top connection 2 bottom, close borehole jack 4 and close between hole sliding sleeve 5 and be installed with y-type seal ring 21, space, the top internal fixtion of y-type seal ring 21 is provided with O type circle 22, retainer ring 10 respectively and body 1 and perforate overlap 7 between be installed with O RunddichtringO 20, O RunddichtringO 20 is installed with between low sleeve 6 and body 1, low sleeve 6 and perforate are installed with y-type seal ring 21 between overlapping 7, the bottom of perforate cover 7 is installed with y-type seal ring 21, between the upper outside of lower contact 3 and body 1, O RunddichtringO 20 is installed.Sealing ring plays the effect of the sealing increased between contact surface.
As shown in Figure 1, be installed with on the top of closing borehole jack 4 baffle plate 16 being located at stopping device top, baffle plate 16 is fixedly installed togather by parting of baffle bolt 17 with the top of closing borehole jack 4.Baffle plate 16 mainly plays and stops the effect of the retaining steel ball 14 in stopping device from landing in conical socket.
As shown in Figure 1, top connection 2 upper inner and lower contact 3 lower outside have conical external screw thread; Or/and body 1 lower inside is installed with and stops pin 18, the body 1 inside pin 18 is provided with slippage slot radially together stopping, slippage slot internal fixtion is provided with retaining pin 19.In use, whether can cut off according to low sleeve 6 and stop that pin 18 and retaining pin 19 determine whether the circulation through hole 8 on sizing collar bars up completely.
For the ease of installation and removal, as shown in Figure 1, there is internal thread in the bottom of body 1; Or/and the lower outside of top connection 2 has external screw thread.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
The use procedure of the utility model most preferred embodiment: first, the utility model is accessed in completion tubular string, after entering design attitude under completion tubular string, the sectional area combined due to retainer ring 10 and perforate cover 7 is greater than the sectional area that 7 lower ends are overlapped in perforate, when pressure is very high, perforate cover about 7 section mineralization pressures are poor, when pressure reaches the maximum stress of grappling steel ball 13, grappling steel ball 13 exits groove, perforate cover 7 glides, expose circulation through hole 8, sequentially carry out circulation well cleanup, note prepad fluid, liquid cement, hole, press-in pass for slurry plug; Secondly, when cementing terminates, coordinate with low sleeve when coming downwards to low sleeve for slurry plug, when pressure reaches the pass hole pin limiting range of stress, replace slurry plug to continue promotion pass borehole jack 4, hole, pass sliding sleeve 5 is descending, close closed loop through hole 8, pressure increase, continue descending for slurry plug, hole, promotion pass sliding sleeve 5 is cut off and is closed borehole jack pin 9 and locking pin 23, and continuation promotion low sleeve 6 is descending; Finally, cut off after stopping pin 18 and retaining pin 19 and confirm that the circulation through hole 8 on sizing collar bars up completely, at this moment retaining steel ball 14 locked pass borehole jack 4 and low sleeve 6, stop close borehole jack 4 and low sleeve 6 up, descending after cutting off shear pin 11 for hole, slurry plug promotion pass sliding sleeve 5 and perforate cover 7, until fall into shaft bottom.Thisly exempt to bore sizing collar and can adopt hydraulic pressure, machinery two kinds of mode perforates, not need after well cementation terminates again lower boring except for slurry plug, man-hour can be saved, reduce construction risk.
Claims (10)
1. exempt to bore hydraulic stage collar for one kind, it is characterized in that comprising body, top connection, lower contact, close borehole jack, close hole sliding sleeve, low sleeve and perforate cover, be fixedly installed togather with the lower end outside of top connection inside body upper end, be fixedly installed togather outside the lower end inside of body and the upper end of lower contact, at least one circulation through hole is circumferentially radially distributed with at the middle part of body, relevant borehole jack is fixedly connected with by closing hole pin inside body above circulation through hole, close between the top of hole sliding sleeve and pass borehole jack and be fixed together by closing borehole jack pin, low sleeve is fixedly connected with by locking pin inside body below circulation through hole, the inner side of low sleeve is fixedly connected with perforate cover by shear pin, be installed with outside perforate set upper side and be enclosed within intrinsic retainer ring, the steel ball fixed cover of at least two is installed at low sleeve internal fixtion, the annular groove corresponding with steel ball fixed cover is provided with in perforate cover outside, Compress Spring is provided with in steel ball fixed cover, grappling steel ball is fixed with in the inner of Compress Spring, the inner of grappling steel ball is positioned at annular groove.
2. according to claim 1 exempting from bores hydraulic stage collar, and characterized by further comprising stopping device, stopping device comprises retaining steel ball; In the bottom of closing the top of borehole jack and low sleeve, axially spaced-apart is fixed with at least two retaining grooves wide at the top and narrow at the bottom respectively, is separately installed with at least one retaining steel ball in retaining groove.
3. according to claim 1 and 2 exempting from bores hydraulic stage collar, and it is characterized in that the top of closing borehole jack is installed with the baffle plate being located at stopping device top, baffle plate is fixedly installed togather by parting of baffle bolt with the top of closing borehole jack.
4. according to claim 1 and 2 exempting from bores hydraulic stage collar, it is characterized in that being installed with O RunddichtringO between body and top connection bottom, close borehole jack and close between the sliding sleeve of hole and be installed with y-type seal ring, space, the top internal fixtion of y-type seal ring is provided with O type circle, retainer ring respectively and body and perforate overlap between be installed with O RunddichtringO, O RunddichtringO is installed with between low sleeve and body, low sleeve and perforate are installed with y-type seal ring between overlapping, the bottom of perforate cover is installed with y-type seal ring, O RunddichtringO is installed between the upper outside of lower contact and body.
5. according to claim 3 exempting from bores hydraulic stage collar, it is characterized in that being installed with O RunddichtringO between body and top connection bottom, close borehole jack and close between the sliding sleeve of hole and be installed with y-type seal ring, space, the top internal fixtion of y-type seal ring is provided with O type circle, retainer ring respectively and body and perforate overlap between be installed with O RunddichtringO, O RunddichtringO is installed with between low sleeve and body, low sleeve and perforate are installed with y-type seal ring between overlapping, the bottom of perforate cover is installed with y-type seal ring, O RunddichtringO is installed between the upper outside of lower contact and body.
6. according to claim 1 and 2 exempting from bores hydraulic stage collar, it is characterized in that top connection upper inner and lower contact lower outside have conical external screw thread; Or/and be installed with stop pin inside body lower part, the body inside pin is provided with slippage slot radially together stopping, slippage slot internal fixtion is provided with retaining pin.
7. according to claim 3 exempting from bores hydraulic stage collar, it is characterized in that top connection upper inner and lower contact lower outside have conical external screw thread; Or/and be installed with stop pin inside body lower part, the body inside pin is provided with slippage slot radially together stopping, slippage slot internal fixtion is provided with retaining pin.
8. according to claim 4 exempting from bores hydraulic stage collar, it is characterized in that top connection upper inner and lower contact lower outside have conical external screw thread; Or/and be installed with stop pin inside body lower part, the body inside pin is provided with slippage slot radially together stopping, slippage slot internal fixtion is provided with retaining pin.
9. according to claim 1 and 2 exempting from bores hydraulic stage collar, it is characterized in that internal thread is arranged at the bottom of body; Or/and the lower outside of top connection has external screw thread.
10. according to claim 8 exempting from bores hydraulic stage collar, it is characterized in that internal thread is arranged at the bottom of body; Or/and the lower outside of top connection has external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520832284.0U CN205135541U (en) | 2015-10-26 | 2015-10-26 | It binds round in grades to exempt from to bore hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520832284.0U CN205135541U (en) | 2015-10-26 | 2015-10-26 | It binds round in grades to exempt from to bore hydraulic pressure |
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| Publication Number | Publication Date |
|---|---|
| CN205135541U true CN205135541U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520832284.0U Active CN205135541U (en) | 2015-10-26 | 2015-10-26 | It binds round in grades to exempt from to bore hydraulic pressure |
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| Country | Link |
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| CN (1) | CN205135541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211589A (en) * | 2019-07-12 | 2021-01-12 | 中国石油化工股份有限公司 | Well cementation device and method for graded cementing of highly deviated well and horizontal well |
-
2015
- 2015-10-26 CN CN201520832284.0U patent/CN205135541U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211589A (en) * | 2019-07-12 | 2021-01-12 | 中国石油化工股份有限公司 | Well cementation device and method for graded cementing of highly deviated well and horizontal well |
| CN112211589B (en) * | 2019-07-12 | 2022-12-16 | 中国石油化工股份有限公司 | Well cementation device and method for graded cementing of highly deviated well and horizontal well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201110 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. |
|
| TR01 | Transfer of patent right |