CN203742576U - Repeated use type sliding sleeve - Google Patents
Repeated use type sliding sleeve Download PDFInfo
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- CN203742576U CN203742576U CN201420056961.XU CN201420056961U CN203742576U CN 203742576 U CN203742576 U CN 203742576U CN 201420056961 U CN201420056961 U CN 201420056961U CN 203742576 U CN203742576 U CN 203742576U
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- ring
- sealing
- sliding sleeve
- joint
- annular groove
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Abstract
The utility model relates to the technical field of packing devices in oil and gas field well completion work and discloses a repeated use type sliding sleeve. The repeated use type sliding sleeve comprises an upper joint, an inner sliding sleeve, a double-female joint, a lower joint and a sealing cylinder. The inner wall of the upper portion of the upper joint is integrally and fixedly provided with an upper joint inner ring table, and the outer wall of the middle of the upper joint is integrally and fixedly provided with an upper limiting ring table. The outer wall of the lower end of the upper joint is provided with an upper joint upper ring groove and an upper joint lower ring groove from top to bottom, wherein the outer diameters of the upper joint upper ring groove and the upper joint lower ring groove are sequentially reduced. The outer diameter of the upper joint lower ring groove is matched with the inner diameter of the double-female joint, and the inner wall of the upper portion of the double-female joint is provided with a first joint upper ring groove and a second joint upper ring groove from bottom to top, wherein the inner diameters of the first joint upper ring groove and the second joint upper ring groove are sequentially increased. The repeated use type sliding sleeve is reasonable and compact in structure and convenient to use, tools can be assisted in going down or being lifted out conveniently, it is ensured that under the good working conditions, the inner sliding sleeve can be opened and also be closed, the flow of fluid, after the inner sliding sleeve is opened and the inside is communicated with the outside, can be effectively adjusted, and rational exploitation of a gas deposit is achieved.
Description
Technical field
the utility model relates to packing device technical field in oil gas field completion practice, is that one is repeatedly used formula sliding sleeve.
Background technology
completion practice is the important technical that is connected drilling well and oil producing operation, and meanwhile, completion is again the great underground work of risk, and therefore, the success or not of completion practice, will directly cause the success or failure of a bite well.Particularly current, along with deepening continuously of shale gas, the unconventional exploration of oil and gas field of fine and close wet goods, people for the research of carrying out such Reservoir Development also in continuous reinforcement.For the exploitation of such oil-gas reservoir, carry out the pressure break completion technological means that is also absolutely necessary.No matter be the completion of conventional gas and oil Tibetan or the completion practice of unconventional oil/gas well, an indispensable technological means utilizes sliding sleeve to exploit bottom oil reservoir exactly.In conventional gas and oil is hidden, utilize sliding sleeve to be communicated with oil reservoir and oil pipe inner chamber, but conventional sliding over can not be closed sliding sleeve after opening, to protect oil-gas reservoir.
Summary of the invention
the utility model provides one repeatedly to use formula sliding sleeve, has overcome the deficiency of above-mentioned prior art, and it can effectively solve after conventional sliding sleeve is opened again can not close the problem of sliding sleeve with protection oil-gas reservoir.
the technical solution of the utility model realizes by following measures: one is repeatedly used formula sliding sleeve, comprises top connection, inner sliding sleeve, two female joint, lower contact and sealing drum, in the upper inside wall of top connection, one is fixed with ring platform in top connection, on the outer wall of the middle part of top connection, one is fixed with upper limit ring platform, on the outer wall of the lower end of top connection, there is in the top connection that external diameter reduces successively annular groove under annular groove and top connection from top to bottom, under top connection, the external diameter of annular groove matches with the internal diameter of two female joints, the upper inside wall of two female joints has on the joint first that internal diameter increases successively annular groove on annular groove and joint second from bottom to top, first time annular groove of joint and second time annular groove of joint that the lower inner wall of two female joints has internal diameter to increase successively from top to bottom, on top connection outer wall in upper limit ring platform and top connection between annular groove and joint second, annular groove inwall is fixedly installed togather, on joint first, in the inwall of annular groove and top connection, under the outer wall of annular groove and top connection, the outer wall of annular groove fits tightly respectively with the inwall of two female joints, the lower end of the upper end of two female joints and upper limit ring platform offsets, the upper end outer wall of lower contact has in the lower contact that external diameter increases successively annular groove under annular groove and lower contact from top to bottom, in the inwall of first time annular groove of joint and lower contact, the outer wall of annular groove is fixedly installed togather, under the inwall of second time annular groove of joint and lower contact the outer wall of annular groove fit tightly and the lower end of two female joints and lower contact under the bottom surface of annular groove offset, on the inwall of the middle part of two female joints, one is fixed with the lower limit ring platform that internal diameter and top connection internal diameter match, in two female joints between top connection lower end and lower limit Huan Tai upper end, sealing drum is installed, between two female joints and sealing drum, being installed with anti-rotation marks closely, on two female joint inwalls of lower limit ring platform below, there is axial keyway, on the lower end inwall of lower contact, one is fixed with ring platform in lower contact, in top connection, encircle and in platform and lower contact, encircle the top connection between platform, in the inner chamber that sealing drum and lower contact form, be set with inner sliding sleeve, the internal diameter of top connection and the external diameter of inner sliding sleeve match, the external diameter of sealing drum matches with two female joint internal diameters, internal diameter and inner sliding sleeve external diameter match, on the outer wall of the middle part of inner sliding sleeve, one is fixed with feather key, feather key is positioned at keyway, the lower end of top connection, the upper end of sealing drum, in the toroidal cavity forming between the inwall of two female joints and the outer wall of inner sliding sleeve, be installed with upper sealing device, the lower end of two female joints, the upper end of lower limit ring platform, in the toroidal cavity forming between the inwall of two female joints and the outer wall of inner sliding sleeve, be installed with lower sealing device, in sealing drum and two female joint, there is respectively the accessibke porosity being communicated with along circumference radial distribution of at least one circle, on inner sliding sleeve, have at least one circle along the radially-arranged inner via hole of circumference, on the upper end inwall of inner sliding sleeve and lower end inwall, there are respectively upper annular slot and lower annular slot, the upper surface of upper annular slot is plane, lower surface is oblique inclined-plane under interior, the upper surface of lower annular slot is oblique inclined-plane on interior, lower surface is plane, on the inwall of lower contact, be distributed with draw-in groove and taper type lower bayonet slot on taper type from top to bottom, on the outer wall of the bottom of inner sliding sleeve one be fixed with taper type on the annular frustum that matches of draw-in groove and taper type lower bayonet slot, in top connection ring platform to the distance of draw-in groove on taper type and inner sliding sleeve upper end extremely the distance of annular frustum match, on taper type, draw-in groove is to the distance between taper type lower bayonet slot, accessibke porosity is to the distance of inner via hole, feather key bottom to the distance of keyway low side matches with inner sliding sleeve bottom to the distance of Huan Tai upper end in lower contact respectively.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned upper sealing device comprises Sealing shield ring on first, Sealing shield ring on second, upper sealing ring, upper Sealing shield ring, fixing snap ring, lower seal back-up ring, the first lower seal back-up ring, the second lower seal back-up ring and lower seal, below top connection, be installed with Sealing shield ring on first, on first Sealing shield ring below be installed with Sealing shield ring on second, on first, Sealing shield ring is a pair of Sealing shield ring that has relative arc opening with Sealing shield ring on second, on one, on Sealing shield ring and second, between Sealing shield ring, be installed with sealing ring, Sealing shield ring on being installed with below Sealing shield ring on second, on two female joint inwalls below upper Sealing shield ring, be installed with fixing snap ring, below fixing snap ring, be installed with lower seal back-up ring, below lower seal back-up ring, be installed with the first lower seal back-up ring, below the first lower seal back-up ring, be installed with the second lower seal back-up ring, the first lower seal back-up ring is a pair of Sealing shield ring that has relative arc opening with the second lower seal back-up ring, between the first lower seal back-up ring and the second lower seal back-up ring, be installed with lower seal, second lower end of lower seal back-up ring and the upper end of sealing drum offset.
above-mentioned lower sealing device comprises back-up ring under the first sealing, the lower back-up ring of the second sealing and sealing ring, in the toroidal cavity forming, be installed with back-up ring under back-up ring under the first sealing, the second sealing from top to bottom between upper end, the inwall of two female joints and the outer wall of inner sliding sleeve of the lower end of sealing drum, lower limit ring platform, the lower back-up ring of the first sealing is a pair of Sealing shield ring that has relative arc opening with the lower back-up ring of the second sealing, under the first sealing, under back-up ring and the second sealing, between back-up ring, is installed with sealing ring.
the above-mentioned accessibke porosity being communicated with along circumference radial distribution that has respectively three circles in sealing drum and two female joint, accessibke porosity between two adjacent rings is staggeredly located, on inner sliding sleeve, have three circles along the radially-arranged inner via hole of circumference, inner via hole between two adjacent rings is staggeredly located, a bottom circle inner via hole to the distance of a bottom circle accessibke porosity and inner sliding sleeve bottom to lower contact in the distance of Huan Tai upper end match.
under above-mentioned correspondence, on the inner sliding sleeve of annular slot, circumferentially there is long and narrow cylindrical void.
above-mentionedly on joint first, in annular groove and top connection, between annular groove, be installed with sealing ring, between the sealing drum above accessibke porosity and two female joint, be installed with sealing ring, under second time annular groove of joint and lower contact, between annular groove, be installed with sealing ring.
on top connection outer wall in above-mentioned upper limit ring platform and top connection between annular groove and joint second, annular groove inwall is fixedly installed togather by screw thread, and in the inwall of first time annular groove of joint and lower contact, the outer wall of annular groove is fixedly installed togather by screw thread.
the utility model reasonable and compact in structure, easy to use, not only facilitate aid to be lowered to or to propose, and can ensure under good working condition, make can opening and closing of inner sliding sleeve, and can effectively regulate inner sliding sleeve to open the inside and outside flow that connects rear fluid, realize there being the rational exploitation of gas reservoir.
Brief description of the drawings
the first half master that accompanying drawing 1 is the utility model most preferred embodiment looks half section structural representation.
the latter half master that accompanying drawing 1 is the utility model most preferred embodiment looks half section structural representation.
coding in accompanying drawing is respectively: 1 is top connection, 2 is ring platform in top connection, 3 is upper limit ring platform, 4 is annular groove in top connection, 5 is annular groove under top connection, 6 is inner sliding sleeve, 7 is two female joints, 8 is annular groove on joint first, 9 is annular groove on joint second, 10 is first time annular groove of joint, 11 is second time annular groove of joint, 12 is lower contact, 13 is annular groove in lower contact, 14 is annular groove under lower contact, 15 is lower limit ring platform, 16 is sealing drum, 17 mark closely for anti-rotation, 18 is keyway, 19 is ring platform in lower contact, 20 is feather key, 21 is accessibke porosity, 22 is inner via hole, 23 is upper annular slot, 24 is lower annular slot, 25 is draw-in groove on taper type, 26 is taper type lower bayonet slot, 27 is annular frustum, 28 is Sealing shield ring on first, 29 is Sealing shield ring on second, 30 is upper sealing ring, 31 is upper Sealing shield ring, 32 is fixing snap ring, 33 is lower seal back-up ring, 34 is the first lower seal back-up ring, 35 is the second lower seal back-up ring, 36 is lower seal, 37 is back-up ring under the first sealing, 38 is back-up ring under the second sealing, 39 is sealing ring, 40 is long and narrow cylindrical void.
Detailed description of the invention
the utility model is not subject 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 is to be all described according to the Butut mode of Figure of description, as: the position relationship of upper and lower, left and right etc. is 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 accompanying drawing 1,2, this repeatedly uses formula sliding sleeve to comprise top connection 1, inner sliding sleeve 6, two female joint 7, lower contact 12 and sealing drum 16, in the upper inside wall of top connection 1, one is fixed with ring platform 2 in top connection, on the outer wall of the middle part of top connection 1, one is fixed with upper limit ring platform 3, on the outer wall of the lower end of top connection 1, there is in the top connection that external diameter reduces successively annular groove 5 under annular groove 4 and top connection from top to bottom, under top connection, the external diameter of annular groove 5 matches with the internal diameter of two female joints 7, the upper inside wall of two female joints 7 has on the joint first that internal diameter increases successively annular groove 9 on annular groove 8 and joint second from bottom to top, first time annular groove 10 of joint and second time annular groove 11 of joint that the lower inner wall of two female joints 7 has internal diameter to increase successively from top to bottom, on top connection 1 outer wall in upper limit ring platform 3 and top connection between annular groove 4 and joint second, annular groove 9 inwalls are fixedly installed togather, on joint first, in the inwall of annular groove 8 and top connection, under the outer wall of annular groove 4 and top connection, the outer wall of annular groove 5 fits tightly respectively with the inwall of two female joints 7, the lower end of the upper end of two female joints 7 and upper limit ring platform 3 offsets, the upper end outer wall of lower contact 12 has in the lower contact that external diameter increases successively annular groove 14 under annular groove 13 and lower contact from top to bottom, in the inwall of first time annular groove 10 of joint and lower contact, the outer wall of annular groove 13 is fixedly installed togather, under the inwall of second time annular groove 11 of joint and lower contact the outer wall of annular groove 14 fit tightly and the lower end of two female joint 7 and lower contact under the bottom surface of annular groove 14 offset, on the inwall of the middle part of two female joints 7, one is fixed with the lower limit ring platform 15 that internal diameter and top connection 1 internal diameter match, in two female joints 7 between top connection 1 lower end and lower limit ring platform 15 upper ends, sealing drum 16 is installed, between two female joints 7 and sealing drum 16, be installed with anti-rotation and mark closely 17, on two female joints 7 inwalls of lower limit ring platform 15 belows, there is axial keyway 18, on the lower end inwall of lower contact, one is fixed with ring platform 19 in lower contact, in top connection, encircle and in platform 2 and lower contact, encircle the top connection 1 between platform 19, in the inner chamber that sealing drum 16 and lower contact 12 form, be set with inner sliding sleeve 6, the external diameter of the internal diameter of top connection 1 and inner sliding sleeve 6 matches, the external diameter of sealing drum 16 matches with two female joint 7 internal diameters, internal diameter and inner sliding sleeve 6 external diameters match, on the outer wall of the middle part of inner sliding sleeve 6, one is fixed with feather key 20, feather key 20 is positioned at keyway 18, the lower end of top connection 1, the upper end of sealing drum 16, in the toroidal cavity forming between the outer wall of the inwall of two female joints 7 and inner sliding sleeve 6, be installed with upper sealing device, the lower end of two female joints 7, the upper end of lower limit ring platform 15, in the toroidal cavity forming between the outer wall of the inwall of two female joints 7 and inner sliding sleeve 6, be installed with lower sealing device, in sealing drum 16 and two female joint 7, there is respectively the accessibke porosity 21 being communicated with along circumference radial distribution of at least one circle, on inner sliding sleeve 6, have at least one circle along the radially-arranged inner via hole 22 of circumference, on the upper end inwall of inner sliding sleeve 6 and lower end inwall, there are respectively upper annular slot 23 and lower annular slot 24, the upper surface of upper annular slot 23 is plane, lower surface is oblique inclined-plane under interior, the upper surface of lower annular slot 24 is oblique inclined-plane on interior, lower surface is plane, on the inwall of lower contact 1, be distributed with draw-in groove 25 and taper type lower bayonet slot 26 on taper type from top to bottom, on the outer wall of the bottom of inner sliding sleeve 6 one be fixed with taper type on the annular frustum 27 that matches of draw-in groove 25 and taper type lower bayonet slot 26, in top connection ring platform 2 to the distance of draw-in groove 25 on taper type and inner sliding sleeve 6 upper ends extremely the distance of annular frustum 27 match, on taper type, draw-in groove 25 is to the distance between taper type lower bayonet slot 26, accessibke porosity 21 is to the distance of inner via hole 22, feather key 20 bottoms to the distance of keyway 18 low sides matches with inner sliding sleeve 6 bottoms to the distance of encircling platform 19 upper ends in lower contact respectively.When use, in the time that needs are opened inner sliding sleeve 6, be lowered to aid to lower annular slot 24, press down inner sliding sleeve 6, inner sliding sleeve 6 comes downwards to annular frustum 27 and enters in taper type lower bayonet slot 26, now, inner via hole 22 and accessibke porosity 21 are communicated with, and inner sliding sleeve 6 is opened, and realize inside and outside perforation, in the time that needs are closed inner sliding sleeve 6, be lowered to the supreme annular slot 23 of aid, above carry inner sliding sleeve 6, inner sliding sleeve 6 goes upward to annular frustum 27 and enters on taper type in draw-in groove 25, and now, inner via hole 22 and accessibke porosity 21 stagger, and inner sliding sleeve 6 is closed, inside and outside cannot perforation, the upper surface of upper annular slot 23 is plane, lower surface is oblique inclined-plane under interior, facilitate on the one hand aid on carry and facilitate on the other hand aid to skid off from the inclined-plane of lower end, the upper surface of lower annular slot 24 is oblique inclined-plane on interior, lower surface is plane, facilitate pressing down of aid to facilitate on the other hand aid to skid off from the inclined-plane of upper end on the one hand, in top connection, in ring platform 2 and lower contact, encircle platform 19 for spacing inner sliding sleeve 6, anti-rotation marks closely 17 for sealing drum 16 anti-rotations, sealing drum 16 is spacing for upper sealing device and lower sealing device between inner sliding sleeve 6 and two female joint 7.The utility model can ensure, under good working condition, to make can opening and closing of inner sliding sleeve 6, and can effectively regulate inner sliding sleeve 6 to open the inside and outside flow that connects rear fluid, realizes the rational exploitation to oil-gas reservoir.
can according to actual needs, the above-mentioned formula sliding sleeve that repeatedly uses be made further optimization and/or improvements:
as accompanying drawing 1, shown in 2, upper sealing device comprises Sealing shield ring 28 on first, Sealing shield ring 29 on second, upper sealing ring 30, upper Sealing shield ring 31, fixing snap ring 32, lower seal back-up ring 33, the first lower seal back-up ring 34, the second lower seal back-up ring 35 and lower seal 36, below top connection 1, be installed with Sealing shield ring 28 on first, on first Sealing shield ring 28 below be installed with Sealing shield ring 29 on second, on first, Sealing shield ring 28 is a pair of Sealing shield ring that has relative arc opening with Sealing shield ring on second 29, on one, on Sealing shield ring 28 and second, between Sealing shield ring 29, be installed with sealing ring 30, on second, below Sealing shield ring 29, be installed with Sealing shield ring 31, on two female joints 7 inwalls below upper Sealing shield ring 31, be installed with fixing snap ring 32, below fixing snap ring 32, be installed with lower seal back-up ring 33, below lower seal back-up ring 33, be installed with the first lower seal back-up ring 34, below the first lower seal back-up ring 34, be installed with the second lower seal back-up ring 35, the first lower seal back-up ring 34 is a pair of Sealing shield ring that has relative arc opening with the second lower seal back-up ring 35, between the first lower seal back-up ring 34 and the second lower seal back-up ring 35, be installed with lower seal 36, the upper end of the lower end of the second lower seal back-up ring 35 and sealing drum 16 offsets.On first, on Sealing shield ring 28, second, Sealing shield ring 29, upper Sealing shield ring 30, lower seal back-up ring 33, the first lower seal back-up ring 34 and the second lower seal back-up ring 35 are the Sealing shield ring of current existing known technology, and upper sealing ring 30 and lower seal 36 are the O RunddichtringO of current existing known technology; Fixing snap ring 32, for separating of fixing upper sealing device, ensures that inner sliding sleeve 6 is in the process sliding up and down, and upper sealing device can play good movable sealing effect.
as shown in accompanying drawing 1,2, lower sealing device comprises back-up ring 37 under the first sealing, the lower back-up ring 38 of the second sealing and sealing ring 39, in the toroidal cavity forming, be installed with under the first sealing back-up ring 38 under back-up ring 37, the second sealing from top to bottom between upper end, the inwall of two female joint 7 and the outer wall of inner sliding sleeve 6 of the lower end of sealing drum 16, lower limit ring platform 15, the lower back-up ring 37 of the first sealing is a pair of Sealing shield ring that has relative arc opening with the lower back-up ring 38 of the second sealing, under the first sealing, under back-up ring 37 and the second sealing, between back-up ring 38, is installed with sealing ring 39.The lower back-up ring 37 of the first sealing and the lower back-up ring 38 of the second sealing are the Sealing shield ring of current existing known technology, the O RunddichtringO that sealing ring 39 is current existing known technology.
as shown in accompanying drawing 1,2, in sealing drum 16 and two female joint 7, there is respectively the accessibke porosity 21 being communicated with along circumference radial distribution of three circles, accessibke porosity 21 between two adjacent rings is staggeredly located, on inner sliding sleeve 6, have three circles along the radially-arranged inner via hole 22 of circumference, inner via hole 22 between two adjacent rings is staggeredly located, and the distance that a bottom circle inner via hole 22 encircles platform 19 upper ends in to the distance of a bottom circle accessibke porosity 21 and inner sliding sleeve 6 bottoms to lower contact matches.Be distributed with the hole area that the accessibke porosity 21 of three circles and inner via hole 22 can increase inner-outer circulation, secondly, the accessibke porosity 21 that two adjacent rings is staggeredly located and inner via hole 22 can reduce the strength stress on sealing drum 16, two female joint 7 and inner sliding sleeve 6, avoid the stressed excessive or discontinuity of process and in the course of the work under pressurized condition or pressurized is inhomogeneous causes damage, for processing or work offer convenience.
as shown in accompanying drawing 1,2, on the inner sliding sleeve 6 of corresponding lower annular slot 24, circumferentially there is axial long and narrow cylindrical void 40.In the time that annular frustum 27 enters or skids off on taper type draw-in groove 25 and taper type lower bayonet slot 26, under pressure, the long and narrow cylindrical void 40 distributing on inner sliding sleeve 6 can make the lower end of inner sliding sleeve 6 have certain elastic shrinkage effect, facilitates annular frustum 27 to enter or skid off draw-in groove 25 and taper type lower bayonet slot 26 on taper type.
as shown in accompanying drawing 1,2, on joint first, in annular groove 8 and top connection, between annular groove 4, be installed with sealing ring 39, between the sealing drum 16 above accessibke porosity 21 and two female joint 7, be installed with sealing ring 39, under second time annular groove of joint and lower contact, between annular groove, be installed with sealing ring 39.The O RunddichtringO that sealing ring 39 is current existing known technology.
as shown in accompanying drawing 1,2, on top connection 1 outer wall in upper limit ring platform 3 and top connection between annular groove 4 and joint second, annular groove 9 inwalls are fixedly installed togather by screw thread, and in the inwall of first time annular groove 10 of joint and lower contact, the outer wall of annular groove 13 is fixedly installed togather by screw thread.Be threaded and facilitate installation and removal.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (10)
1. repeatedly use a formula sliding sleeve, it is characterized in that comprising top connection, inner sliding sleeve, two female joint, lower contact and sealing drum, in the upper inside wall of top connection, one is fixed with ring platform in top connection, on the outer wall of the middle part of top connection, one is fixed with upper limit ring platform, on the outer wall of the lower end of top connection, there is in the top connection that external diameter reduces successively annular groove under annular groove and top connection from top to bottom, under top connection, the external diameter of annular groove matches with the internal diameter of two female joints, the upper inside wall of two female joints has on the joint first that internal diameter increases successively annular groove on annular groove and joint second from bottom to top, first time annular groove of joint and second time annular groove of joint that the lower inner wall of two female joints has internal diameter to increase successively from top to bottom, on top connection outer wall in upper limit ring platform and top connection between annular groove and joint second, annular groove inwall is fixedly installed togather, on joint first, in the inwall of annular groove and top connection, under the outer wall of annular groove and top connection, the outer wall of annular groove fits tightly respectively with the inwall of two female joints, the lower end of the upper end of two female joints and upper limit ring platform offsets, the upper end outer wall of lower contact has in the lower contact that external diameter increases successively annular groove under annular groove and lower contact from top to bottom, in the inwall of first time annular groove of joint and lower contact, the outer wall of annular groove is fixedly installed togather, under the inwall of second time annular groove of joint and lower contact the outer wall of annular groove fit tightly and the lower end of two female joints and lower contact under the bottom surface of annular groove offset, on the inwall of the middle part of two female joints, one is fixed with the lower limit ring platform that internal diameter and top connection internal diameter match, in two female joints between top connection lower end and lower limit Huan Tai upper end, sealing drum is installed, between two female joints and sealing drum, being installed with anti-rotation marks closely, on two female joint inwalls of lower limit ring platform below, there is axial keyway, on the lower end inwall of lower contact, one is fixed with ring platform in lower contact, in top connection, encircle and in platform and lower contact, encircle the top connection between platform, in the inner chamber that sealing drum and lower contact form, be set with inner sliding sleeve, the internal diameter of top connection and the external diameter of inner sliding sleeve match, the external diameter of sealing drum matches with two female joint internal diameters, internal diameter and inner sliding sleeve external diameter match, on the outer wall of the middle part of inner sliding sleeve, one is fixed with feather key, feather key is positioned at keyway, the lower end of top connection, the upper end of sealing drum, in the toroidal cavity forming between the inwall of two female joints and the outer wall of inner sliding sleeve, be installed with upper sealing device, the lower end of two female joints, the upper end of lower limit ring platform, in the toroidal cavity forming between the inwall of two female joints and the outer wall of inner sliding sleeve, be installed with lower sealing device, in sealing drum and two female joint, there is respectively the accessibke porosity being communicated with along circumference radial distribution of at least one circle, on inner sliding sleeve, have at least one circle along the radially-arranged inner via hole of circumference, on the upper end inwall of inner sliding sleeve and lower end inwall, there are respectively upper annular slot and lower annular slot, the upper surface of upper annular slot is plane, lower surface is oblique inclined-plane under interior, the upper surface of lower annular slot is oblique inclined-plane on interior, lower surface is plane, on the inwall of lower contact, be distributed with draw-in groove and taper type lower bayonet slot on taper type from top to bottom, on the outer wall of the bottom of inner sliding sleeve one be fixed with taper type on the annular frustum that matches of draw-in groove and taper type lower bayonet slot, in top connection ring platform to the distance of draw-in groove on taper type and inner sliding sleeve upper end extremely the distance of annular frustum match, on taper type, draw-in groove is to the distance between taper type lower bayonet slot, accessibke porosity is to the distance of inner via hole, feather key bottom to the distance of keyway low side matches with inner sliding sleeve bottom to the distance of Huan Tai upper end in lower contact respectively.
2. the formula sliding sleeve that repeatedly uses according to claim 1, it is characterized in that upper sealing device comprises Sealing shield ring on first, Sealing shield ring on second, upper sealing ring, upper Sealing shield ring, fixing snap ring, lower seal back-up ring, the first lower seal back-up ring, the second lower seal back-up ring and lower seal, below top connection, be installed with Sealing shield ring on first, on first Sealing shield ring below be installed with Sealing shield ring on second, on first, Sealing shield ring is a pair of Sealing shield ring that has relative arc opening with Sealing shield ring on second, on one, on Sealing shield ring and second, between Sealing shield ring, be installed with sealing ring, Sealing shield ring on being installed with below Sealing shield ring on second, on two female joint inwalls below upper Sealing shield ring, be installed with fixing snap ring, below fixing snap ring, be installed with lower seal back-up ring, below lower seal back-up ring, be installed with the first lower seal back-up ring, below the first lower seal back-up ring, be installed with the second lower seal back-up ring, the first lower seal back-up ring is a pair of Sealing shield ring that has relative arc opening with the second lower seal back-up ring, between the first lower seal back-up ring and the second lower seal back-up ring, be installed with lower seal, second lower end of lower seal back-up ring and the upper end of sealing drum offset.
3. the formula sliding sleeve that repeatedly uses according to claim 1 and 2, it is characterized in that lower sealing device comprises back-up ring under the first sealing, the lower back-up ring of the second sealing and sealing ring, in the lower end of sealing drum, the upper end of lower limit ring platform, in the toroidal cavity forming between the inwall of two female joints and the outer wall of inner sliding sleeve, be installed with back-up ring under the first sealing from top to bottom, the lower back-up ring of the second sealing, the lower back-up ring of the first sealing is a pair of Sealing shield ring that has relative arc opening with the lower back-up ring of the second sealing, under the first sealing, under back-up ring and the second sealing, between back-up ring, be installed with sealing ring.
4. the formula sliding sleeve that repeatedly uses according to claim 1 and 2, it is characterized in that having respectively the accessibke porosity being communicated with along circumference radial distribution of three circles in sealing drum and two female joint, accessibke porosity between two adjacent rings is staggeredly located, on inner sliding sleeve, have three circles along the radially-arranged inner via hole of circumference, inner via hole between two adjacent rings is staggeredly located, a bottom circle inner via hole to the distance of a bottom circle accessibke porosity and inner sliding sleeve bottom to lower contact in the distance of Huan Tai upper end match.
5. the formula sliding sleeve that repeatedly uses according to claim 3, it is characterized in that having respectively the accessibke porosity being communicated with along circumference radial distribution of three circles in sealing drum and two female joint, accessibke porosity between two adjacent rings is staggeredly located, on inner sliding sleeve, have three circles along the radially-arranged inner via hole of circumference, inner via hole between two adjacent rings is staggeredly located, a bottom circle inner via hole to the distance of a bottom circle accessibke porosity and inner sliding sleeve bottom to lower contact in the distance of Huan Tai upper end match.
6. the formula sliding sleeve that repeatedly uses according to claim 1 and 2, is characterized in that circumferentially there is long and narrow cylindrical void on the inner sliding sleeve of corresponding lower annular slot.
7. the formula sliding sleeve that repeatedly uses according to claim 5, is characterized in that circumferentially there is long and narrow cylindrical void on the inner sliding sleeve of corresponding lower annular slot.
8. the formula sliding sleeve that repeatedly uses according to claim 1 and 2, it is characterized in that on annular groove and top connection, between annular groove, being installed with sealing ring on joint first, between the sealing drum above accessibke porosity and two female joint, be installed with sealing ring, under second time annular groove of joint and lower contact, between annular groove, be installed with sealing ring.
9. the formula sliding sleeve that repeatedly uses according to claim 7, it is characterized in that on annular groove and top connection, between annular groove, being installed with sealing ring on joint first, between the sealing drum above accessibke porosity and two female joint, be installed with sealing ring, under second time annular groove of joint and lower contact, between annular groove, be installed with sealing ring.
10. the formula sliding sleeve that repeatedly uses according to claim 9, it is characterized in that in upper limit ring platform and top connection on the top connection outer wall between annular groove and joint second that annular groove inwall is fixedly installed togather by screw thread, in the inwall of first time annular groove of joint and lower contact, the outer wall of annular groove is fixedly installed togather by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056961.XU CN203742576U (en) | 2014-01-29 | 2014-01-29 | Repeated use type sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056961.XU CN203742576U (en) | 2014-01-29 | 2014-01-29 | Repeated use type sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742576U true CN203742576U (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420056961.XU Withdrawn - After Issue CN203742576U (en) | 2014-01-29 | 2014-01-29 | Repeated use type sliding sleeve |
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| Country | Link |
|---|---|
| CN (1) | CN203742576U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835690A (en) * | 2014-01-29 | 2014-06-04 | 中国石油集团西部钻探工程有限公司 | Repeatedly-used sliding sleeve |
| CN107313761A (en) * | 2016-04-26 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of pressure break hole opening/closing system |
| CN108397155A (en) * | 2018-03-02 | 2018-08-14 | 荆州市赛瑞能源技术有限公司 | A kind of closable hydraulic pressure opening sliding sleeve |
| US10494901B2 (en) | 2015-04-09 | 2019-12-03 | Cnpc Xibu Drilling Engineering Company Limited | Ball-dropping sliding sleeve with a removable ball seat |
-
2014
- 2014-01-29 CN CN201420056961.XU patent/CN203742576U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835690A (en) * | 2014-01-29 | 2014-06-04 | 中国石油集团西部钻探工程有限公司 | Repeatedly-used sliding sleeve |
| CN103835690B (en) * | 2014-01-29 | 2016-01-13 | 中国石油集团西部钻探工程有限公司 | Repeatedly use formula sliding sleeve |
| US10494901B2 (en) | 2015-04-09 | 2019-12-03 | Cnpc Xibu Drilling Engineering Company Limited | Ball-dropping sliding sleeve with a removable ball seat |
| CN107313761A (en) * | 2016-04-26 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of pressure break hole opening/closing system |
| CN107313761B (en) * | 2016-04-26 | 2019-06-07 | 中国石油化工股份有限公司 | A kind of pressure break hole opening/closing system |
| CN108397155A (en) * | 2018-03-02 | 2018-08-14 | 荆州市赛瑞能源技术有限公司 | A kind of closable hydraulic pressure opening sliding sleeve |
| CN108397155B (en) * | 2018-03-02 | 2020-01-24 | 荆州市赛瑞能源技术有限公司 | Closable hydraulic opening sliding sleeve |
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