CN204225841U - Hydraulic reciprocating type easily bores sizing collar - Google Patents
Hydraulic reciprocating type easily bores sizing collar Download PDFInfo
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- CN204225841U CN204225841U CN201420629167.XU CN201420629167U CN204225841U CN 204225841 U CN204225841 U CN 204225841U CN 201420629167 U CN201420629167 U CN 201420629167U CN 204225841 U CN204225841 U CN 204225841U
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Abstract
The utility model relates to hydraulic reciprocating type grading plant technical field, that a kind of hydraulic reciprocating type easily bores sizing collar, it comprises top connection, body, switch borehole jack and lower contact, the lower outside of top connection and the upper inner of body are fixed together, be fixed together with the lower inside of body outside the middle part of lower contact, the bottom of switch borehole jack and the upper inner of lower contact are fixedly installed togather by shear, be fixed with outer lug boss in the upper outside of switch borehole jack, outer lug boss is sleeved on the inner side of body.The utility model reasonable and compact in structure, easy to use, it is in the process of well cementation, and the setting of switch borehole jack and shear pin can perforate in time, at needs Guan Kongshi, cut off Elastip pin, switch hole is overlapped up, achieve pass hole operation, the setting of elasticity self-locking device and Compress Spring can play position-limiting action to up switch borehole jack, ensure that carrying out smoothly of well cementing operation, improve the quality of well cementation.
Description
Technical field
the utility model relates to hydraulic reciprocating type grading plant technical field, is that a kind of hydraulic reciprocating type easily bores sizing collar.
Background technology
fraclional well cementing controls to open and close by ground the special well shaft fixing technology that sizing collar makes cementing job at twice or repeatedly completion when cementing the well, and is applicable to once require that cementing amount is excessive, interval isolation is long, formation fracture pressure coefficient is low, stratum permeability leakage is serious and have the Holes of Complicated Wells well cementing operations such as severe leakage in the middle of interval isolation.In use there is the insecure phenomenon of switch hole in now conventional sizing collar, even there is the problem of closing Kong Buyan or hole cannot be closed in some wells, carrying out smoothly of well cementing operation can not be ensured, in addition, Gu need after completion to bore except internal construction, destroy the cement plane between Behavior of Hardened Cement Paste and sleeve pipe, reduce cementing quality.
Summary of the invention
the utility model provides a kind of hydraulic reciprocating type and easily bores sizing collar, overcomes the deficiency of above-mentioned prior art, and what it effectively can solve that existing sizing collar exists in actual use can not the problem of switch hole in time.
the technical solution of the utility model is realized by following measures: a kind of hydraulic reciprocating type easily bores sizing collar, comprise top connection, body, switch borehole jack and lower contact, the lower outside of top connection and the upper inner of body are fixed together, be fixed together with the lower inside of body outside the middle part of lower contact, the bottom of switch borehole jack and the upper inner of lower contact are fixedly installed togather by shear, outer lug boss is fixed with in the upper outside of switch borehole jack, outer lug boss is sleeved on the inner side of body, outer lug boss and the switch hole corresponding with outer lug boss cover are circumferentially intervally distributed with the Inner eycle through hole being no less than two, body is distributed with the outer circulation through hole that can communicate with Inner eycle through hole, plug cover for seat is installed with inside switch borehole jack above Inner eycle through hole, the rubber base in frustum wide at the top and narrow at the bottom is had in the upper inner of plug cover for seat, self-locking annular groove is had inside body between top connection and switch borehole jack, have outside outer lug boss above Inner eycle through hole can be corresponding with inside and outside self-locking annular groove upper limit position groove, the elasticity self-locking device that can radial open is installed in upper limit position groove, mounting groove is had outside switch borehole jack above shear, the lower elastic device that can radial open is installed in mounting groove, have inside lower contact below mounting groove can be corresponding with mounting groove lower limit groove, Distance geometry mounting groove between Inner eycle through hole with outer circulation through hole is equal with the distance between lower limit groove, between outer lug boss and lower contact, Compress Spring is installed, top connection has internal thread or external screw thread, lower contact has internal thread or external screw thread.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned shear can be shear pin.
above-mentioned elasticity self-locking device can comprise the first spring and the first pin, and the right-hand member of the first spring and the left end of the first pin are fixedly installed togather.
above-mentioned lower elastic device can be and comprises the second spring and the second pin, and the right-hand member of the second spring and the left end of the second pin are fixedly installed togather.
sealing ring together with can being installed with between above-mentioned top connection lower outside and the upper inner of body at least, sealing ring outside outer lug boss together with being installed with between inside body at least, at the sealing ring of switch borehole jack lower outside together with being installed with at least between lower contact upper inner, the sealing ring of outside together with being installed with between inside body lower part at least in the middle part of lower contact.
the lower outside of above-mentioned top connection and the upper inner of body are fixedly installed togather by screw thread, be fixedly installed togather by screw thread with the lower inside of body outside the middle part of lower contact, plug cover for seat is installed with by screw thread inside switch borehole jack above Inner eycle through hole, there is internal thread on top connection top, have external screw thread in the bottom of lower contact.
the utility model reasonable and compact in structure, easy to use, it is in the process of well cementation, and the setting of switch borehole jack and shear pin can perforate in time, at needs Guan Kongshi, cut off Elastip pin, switch hole is overlapped up, achieve pass hole operation, the setting of elasticity self-locking device and Compress Spring can play position-limiting action to up switch borehole jack, ensure that carrying out smoothly of well cementing operation, improve the quality of well cementation.
Accompanying drawing explanation
accompanying drawing 1 is that the master of the utility model most preferred embodiment original state looks half section structural representation.
accompanying drawing 2 is that circulate over the utility model most preferred embodiment master of through hole looks half section structural representation.
the master that accompanying drawing 3 closes outer circulation through hole for the utility model most preferred embodiment looks half section structural representation.
coding in accompanying drawing is respectively: 1 is top connection, and 2 is body, and 3 is switch borehole jack, 4 is lower contact, and 5 is outer lug boss, and 6 is Inner eycle through hole, 7 is outer circulation through hole, and 8 is plug cover for seat, and 9 is self-locking annular groove, 10 is lower limit groove, and 11 is Compress Spring, and 12 is shear pin, 13 is lower elastic device, 14 is sealing ring, and 15 is rubber base, and 16 is elasticity self-locking device.
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 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1 to 3, this hydraulic reciprocating type easily bores sizing collar and comprises top connection 1, body 2, switch borehole jack 3 and lower contact 4, the lower outside of top connection 1 and the upper inner of body 2 are fixed together, be fixed together with the lower inside of body 2 outside the middle part of lower contact 4, the bottom of switch borehole jack 3 and the upper inner of lower contact 4 are fixedly installed togather by shear, outer lug boss 5 is fixed with in the upper outside of switch borehole jack 3, outer lug boss 5 is sleeved on the inner side of body 2, outer lug boss 5 and the switch borehole jack 3 corresponding with outer lug boss 5 are circumferentially intervally distributed with the Inner eycle through hole 6 being no less than two, body 2 is distributed with the outer circulation through hole 7 that can communicate with Inner eycle through hole 6, plug cover for seat 8 is installed with inside switch borehole jack 3 above Inner eycle through hole 6, the rubber base 15 in frustum wide at the top and narrow at the bottom is had in the upper inner of plug cover for seat 8, self-locking annular groove 9 is had inside body 2 between top connection 1 and switch borehole jack 3, having outside outer lug boss 5 above Inner eycle through hole 6 can corresponding upper limit position groove inside and outside with self-locking annular groove 9, the elasticity self-locking device 16 that can radial open is installed in upper limit position groove, mounting groove is had outside switch borehole jack 3 above shear, the lower elastic device 13 that can radial open is installed in mounting groove, lower limit groove 10 that can be corresponding with mounting groove is had inside lower contact 4 below mounting groove, Distance geometry mounting groove between Inner eycle through hole 6 with outer circulation through hole 7 is equal with the distance between lower limit groove 10, Compress Spring 11 is installed between outer lug boss 5 and lower contact 4, top connection 1 has internal thread or external screw thread, lower contact 4 has internal thread or external screw thread.The setting of switch borehole jack 3 and shear can perforate in time, namely Inner eycle through hole 6 and outer circulation through hole 7 reach communicating state, at needs Guan Kongshi, cut off lower elastic device 13, make switch borehole jack 3 up, Inner eycle through hole 6 and outer circulation through hole 7 reach not communicating state, achieve pass hole operation, the setting of elasticity self-locking device 16 and Compress Spring 11 can play position-limiting action to up switch borehole jack 3, ensure that carrying out smoothly of well cementing operation, improves the quality of well cementation.
according to actual needs, sizing collar easily can be bored to above-mentioned hydraulic reciprocating type and makes further optimization and/or improvements:
as required, shear is shear pin 12.Shear pin 12 is existing known technology.
as required, elasticity self-locking device 16 comprises the first spring and the first pin, and the right-hand member of the first spring and the left end of the first pin are fixedly installed togather.
as required, lower elastic device 13 is for comprising the second spring and the second pin, and the right-hand member of the second spring and the left end of the second pin are fixedly installed togather.
as shown in accompanying drawing 1 to 3, sealing ring 14 together with being installed with between the upper inner of body 2 at least at top connection 1 lower outside, sealing ring 14 outside outer lug boss 5 together with being installed with at least between inside body 2, sealing ring 14 together with being installed with at least between switch borehole jack 3 lower outside with lower contact 4 upper inner, the sealing ring 14 of outside together with being installed with at least between body 2 lower inside in the middle part of lower contact 4.The setting of sealing ring 14 can ensure sealing performance of the present utility model.
as shown in accompanying drawing 1 to 3, the lower outside of top connection 1 and the upper inner of body 2 are fixedly installed togather by screw thread, be fixedly installed togather by screw thread with the lower inside of body 2 outside the middle part of lower contact 4, plug cover for seat 8 is installed with by screw thread inside switch borehole jack 3 above Inner eycle through hole 6, there is internal thread on top connection 1 top, have external screw thread in the bottom of lower contact 4.
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, conveniently well cementing pipe string structure is installed, by guide shoe, float collar, primary amine obturating plug, bunch tube, the utility model and bunch tube are sequentially installed from bottom to top, work flow carries out first order well cementing operation routinely, one-level carries out pressure of spraining after running to primary amine obturating plug for slurry plug by the utility model, switch borehole jack 3 is subject to downward active force and has the trend moved downward, when switch borehole jack 3 is subject to enough large active force, shear pin 12 is cut off, then, switch borehole jack 3 is descending, when the second pin comes downwards to lower limit groove 10 position, second pin is radial under the effect of the second spring to be ejected and is stuck in lower limit groove 10, now Inner eycle through hole 6 is in outer circulation through hole 7 state communicated, namely perforate state is in, and Compress Spring 11 is also in compressive state, as needs Guan Kongshi, press-in secondary is for slurry plug, when secondary moves on rubber base 15 for slurry plug, build the pressure, when active force reaches certain value, second pin is cut off, termination of pumping is also let out except well head pressure, Compress Spring 11 opens, switch borehole jack 3 carries out upstroke under the effect of opening of Compress Spring 11, when the first pin goes upward to the position of self-locking annular groove 9, first pin under the effect of the first spring radially side open, and the outside of the first pin is stuck in self-locking annular groove 9, Inner eycle through hole 6 is in outer circulation through hole 7 state do not communicated simultaneously, namely be in and close poroid state, complete well cementation, when after cement slurry sets, only need bore except secondary can carry out subsequent job for after slurry plug and plug cover for seat 8.
Claims (10)
1. a hydraulic reciprocating type easily bores sizing collar, it is characterized in that comprising top connection, body, switch borehole jack and lower contact, the lower outside of top connection and the upper inner of body are fixed together, be fixed together with the lower inside of body outside the middle part of lower contact, the bottom of switch borehole jack and the upper inner of lower contact are fixedly installed togather by shear, outer lug boss is fixed with in the upper outside of switch borehole jack, outer lug boss is sleeved on the inner side of body, outer lug boss and the switch hole corresponding with outer lug boss cover are circumferentially intervally distributed with the Inner eycle through hole being no less than two, body is distributed with the outer circulation through hole that can communicate with Inner eycle through hole, plug cover for seat is installed with inside switch borehole jack above Inner eycle through hole, the rubber base in frustum wide at the top and narrow at the bottom is had in the upper inner of plug cover for seat, self-locking annular groove is had inside body between top connection and switch borehole jack, have outside outer lug boss above Inner eycle through hole can be corresponding with inside and outside self-locking annular groove upper limit position groove, the elasticity self-locking device that can radial open is installed in upper limit position groove, mounting groove is had outside switch borehole jack above shear, the lower elastic device that can radial open is installed in mounting groove, have inside lower contact below mounting groove can be corresponding with mounting groove lower limit groove, Distance geometry mounting groove between Inner eycle through hole with outer circulation through hole is equal with the distance between lower limit groove, between outer lug boss and lower contact, Compress Spring is installed, top connection has internal thread or external screw thread, lower contact has internal thread or external screw thread.
2. hydraulic reciprocating type according to claim 1 easily bores sizing collar, it is characterized in that shear is shear pin.
3. hydraulic reciprocating type according to claim 1 and 2 easily bores sizing collar, it is characterized in that elasticity self-locking device comprises the first spring and the first pin, and the right-hand member of the first spring and the left end of the first pin are fixedly installed togather.
4. hydraulic reciprocating type according to claim 1 and 2 easily bores sizing collar, and it is characterized in that lower elastic device is for comprising the second spring and the second pin, the right-hand member of the second spring and the left end of the second pin are fixedly installed togather.
5. hydraulic reciprocating type according to claim 3 easily bores sizing collar, and it is characterized in that lower elastic device is for comprising the second spring and the second pin, the right-hand member of the second spring and the left end of the second pin are fixedly installed togather.
6. hydraulic reciprocating type according to claim 1 and 2 easily bores sizing collar, it is characterized in that the sealing ring together with being installed with at least between top connection lower outside and the upper inner of body, sealing ring outside outer lug boss together with being installed with between inside body at least, at the sealing ring of switch borehole jack lower outside together with being installed with at least between lower contact upper inner, the sealing ring of outside together with being installed with between inside body lower part at least in the middle part of lower contact.
7. hydraulic reciprocating type according to claim 3 easily bores sizing collar, it is characterized in that the sealing ring together with being installed with at least between top connection lower outside and the upper inner of body, sealing ring outside outer lug boss together with being installed with between inside body at least, at the sealing ring of switch borehole jack lower outside together with being installed with at least between lower contact upper inner, the sealing ring of outside together with being installed with between inside body lower part at least in the middle part of lower contact.
8. hydraulic reciprocating type according to claim 4 easily bores sizing collar, it is characterized in that the sealing ring together with being installed with at least between top connection lower outside and the upper inner of body, sealing ring outside outer lug boss together with being installed with between inside body at least, at the sealing ring of switch borehole jack lower outside together with being installed with at least between lower contact upper inner, the sealing ring of outside together with being installed with between inside body lower part at least in the middle part of lower contact.
9. hydraulic reciprocating type according to claim 5 easily bores sizing collar, it is characterized in that the sealing ring together with being installed with at least between top connection lower outside and the upper inner of body, sealing ring outside outer lug boss together with being installed with between inside body at least, at the sealing ring of switch borehole jack lower outside together with being installed with at least between lower contact upper inner, the sealing ring of outside together with being installed with between inside body lower part at least in the middle part of lower contact.
10. hydraulic reciprocating type according to claim 9 easily bores sizing collar, it is characterized in that the lower outside of top connection and the upper inner of body are fixedly installed togather by screw thread, be fixedly installed togather by screw thread with the lower inside of body outside the middle part of lower contact, plug cover for seat is installed with by screw thread inside switch borehole jack above Inner eycle through hole, there is internal thread on top connection top, have external screw thread in the bottom of lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629167.XU CN204225841U (en) | 2014-10-28 | 2014-10-28 | Hydraulic reciprocating type easily bores sizing collar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629167.XU CN204225841U (en) | 2014-10-28 | 2014-10-28 | Hydraulic reciprocating type easily bores sizing collar |
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| CN204225841U true CN204225841U (en) | 2015-03-25 |
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| CN201420629167.XU Active CN204225841U (en) | 2014-10-28 | 2014-10-28 | Hydraulic reciprocating type easily bores sizing collar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163684A (en) * | 2023-04-15 | 2023-05-26 | 西南石油大学 | Shale gas sleeve variable well staged fracturing soluble bridge plug with outer diameter of 75mm and 114.3mm after expansion |
-
2014
- 2014-10-28 CN CN201420629167.XU patent/CN204225841U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116163684A (en) * | 2023-04-15 | 2023-05-26 | 西南石油大学 | Shale gas sleeve variable well staged fracturing soluble bridge plug with outer diameter of 75mm and 114.3mm after expansion |
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