CN203161142U - Anti-fall valvular slip hydraulic hanging packer - Google Patents
Anti-fall valvular slip hydraulic hanging packer Download PDFInfo
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- CN203161142U CN203161142U CN 201220675535 CN201220675535U CN203161142U CN 203161142 U CN203161142 U CN 203161142U CN 201220675535 CN201220675535 CN 201220675535 CN 201220675535 U CN201220675535 U CN 201220675535U CN 203161142 U CN203161142 U CN 203161142U
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Abstract
The utility model relates to the technical field of hanging packers, and discloses an anti-fall valvular slip hydraulic hanging packer. The packer comprises a center shaft, a piston, a cavity bushing, a first sleeve, a second sleeve and a slide bushing, wherein the cavity bushing is fixedly mounted on the outer side of the lower end of the center shaft; the first sleeve with the inside diameter greater than that of the cavity bushing is fixed at the upper end of the cavity bushing; and a slide groove for axial movement of the piston is formed between the first sleeve and the center shaft. The packer is reasonable and compact in structure, and convenient to use; when hydraulic pressure pushes the piston to stroke upward, an upper slip hanging seat and a lower slip hanging seat compress clamping springs in an upper slip cap and a lower slip cap respectively under the action of an upper taper bushing and a lower taper bushing; the lower part of an upper slip and the upper part of a lower slip expand radially to an outer layer bushing, so that hanging is realized; rubber sleeves are hunched under the action of a push force, so that setting is realized; the packer is simple to operate and convenient to mount; internal teeth and external teeth of a pawl ring are engaged, so that self-locking is realized, and the hanging reliability is improved; and the upper rubber sleeve and the lower rubber sleeve are internally provided with retaining rings respectively, so that a setting effect is improved.
Description
Technical field
The utility model relates to the hanging packer technical field, is a kind of anticreep distinguish slip hydraulic hanging packer.
Background technology
Utilizing packer to carry out completion practice, is that adopting more at present also is the most general technical measures; Especially the exploration along with tight gas reservoirs such as shale gas continues to increase, utilizing multilayer staged fracturing technology to increase production becomes the focus that the insider pays close attention to, development and utilization that requisite sport technique segment of multilayer staged fracturing technology is exactly the superiors' top packer; The reliability of its envelope is to determine one of core technology that can fracturing technology be finished smoothly; Employed hanging packer exists mostly that indoor installation difficulty is big, the execute-in-place reliability is not high and the slips suspension force is unreliable and technological deficiency such as the packing element sealing performance is bad in the present on-the-spot completion.
Summary of the invention
The utility model provides a kind of anticreep distinguish slip hydraulic hanging packer, overcome the deficiency of above-mentioned prior art, it can effectively solve the problem that the indoor installation difficulty of hanging packer is big, the execute-in-place reliability is not high, the slips suspension force is unreliable and the packing element sealing performance is bad of present use.
The technical solution of the utility model realizes by following measure: a kind of anticreep distinguish slip hydraulic hanging packer comprises central axis, piston, chamber cover, first sleeve, second sleeve and sliding sleeve; The outside, lower end at central axis is installed with the chamber cover, internal diameter is fixedly arranged greater than first sleeve of chamber cover internal diameter in the upper end of chamber cover, the piston that the formation opening makes progress between first sleeve and the central axis moves axially chute, the piston that can move up and down in moving axially chute, piston is installed, internal diameter and external diameter are fixedly arranged all greater than the sliding sleeve of piston inner diameter and external diameter in the lower end of piston, the bottom of sliding sleeve and piston move axially the pressure chamber that spacing is arranged between the chute bottom and form annular; On the central axis corresponding with pressing the chamber entrance pressure hole is arranged; Fixedly there is boss in the outside, upper end at piston, is fixed together by first shear screw between boss and first sleeve, has at least one and piston to move axially the spout hole that chute communicates respectively on piston and first sleeve; Upper outside at central axis is equipped with the packing element that can set, and is separately installed with tapered sleeve and following tapered sleeve in the top and bottom of packing element and is fixedly installed togather by second shear screw and the 3rd shear screw and central axis; Be set with for split-type slip system on hanging in the outside, upper end of last tapered sleeve; There is outer lug boss upper end at central axis, and the upper end of last split-type slip system withstands on the outer lug boss; Split-type slip system under the outside, lower end of tapered sleeve is set with down forms annular self-locking installation cavity between the bottom of following split-type slip system and the piston tip; In the self-locking installation cavity, be installed with self-locking device.
Be the further optimization and/or improvements to above-mentioned utility model technical scheme below:
The above-mentioned split-type slip system of going up can comprise upper slips, upper slips cap and jump ring; Central axis above the epicone cover is equipped with the upper slips cap, and upper slips cap and central axis form the upper slips mounting groove that Open Side Down; In the distribution of upper slips mounting groove inner periphery the upper slips that there is the awl tooth at least three outsides is installed; Upper outside at each upper slips has respectively and the corresponding axial draw-in groove of upper slips cap axial length, is separately installed with jump ring in each axial draw-in groove; The outer end of jump ring withstands on the upper slips cap; The inner of jump ring withstands on the top of upper slips on the central axis; The bottom of each upper slips outward-dipping and and central axis between form draw-in groove in the up-narrow and down-wide taper; The upper outside of last tapered sleeve is down wide narrow taper type down, and the upper end of last tapered sleeve is installed in the taper in the draw-in groove; Be distributed with the jump ring of being convenient to the jump ring installation in upper slips cap lower circumference groove is installed; Following split-type slip system comprises lower slips, lower slips cap and jump ring; Central axis below following tapered sleeve is set with the lower slips cap, forms the lower slips mounting groove that opening makes progress between lower slips cap and the central axis; There is the lower slips of boring tooth the outside that at least three arcs are installed in the distribution of lower slips mounting groove inner periphery; The outside, bottom at each lower slips has respectively and the corresponding axial draw-in groove of lower slips cap axial length, is separately installed with jump ring in each axial draw-in groove; The outer end of jump ring withstands on the lower slips cap; The inner of jump ring withstands on the bottom of lower slips on the central axis; The top of each lower slips outward-dipping and and central axis between form taper lower bayonet slot wide at the top and narrow at the bottom; The outside, bottom of following tapered sleeve is narrow wide taper type down down, and the lower end of following tapered sleeve is installed in the taper lower bayonet slot; There is the jump ring of being convenient to the jump ring installation that groove is installed in lower slips cap top circle distribution; Be installed with the connection boss of annular in the lower end of lower slips cap; Connecting boss is installed in second sleeve; In the bottom that connects boss, the up-narrow and down-wide taper mounting groove that Open Side Down is arranged, form the self-locking installation cavity of annular between taper mounting groove and the top land.
But circle distribution is equipped with six upper slipses that the bottom is outward-dipping in the above-mentioned upper slips cap, and the both sides, top of each upper slips have the butt joint boss respectively, and it is circular that the butt joint boss docks formation mutually; In the distribution of lower slips cap inner periphery six lower slipses that top is outward-dipping are installed, the both sides, bottom of each lower slips have the butt joint boss respectively, and it is circular that the butt joint boss docks formation mutually.
On the above-mentioned central axis corresponding with upper slips and epicone cover top annular limited impression can be arranged, fixed installation is useful on the mobile spacing opening sleeve of epicone cover in the top of limited impression, and upper slips is sleeved on the opening sleeve; In epicone cover top, the opening draw-in groove that is meshed with opening sleeve is arranged.
Above-mentioned self-locking device can comprise pawl ring, retainer ring and waveform compression spring; Top is installed in the self-locking installation cavity from top to bottom successively is up-narrow and down-wide pawl ring, retainer ring and waveform compression spring; The upper end of waveform compression spring withstands on retainer ring and pawl ring in the taper mounting groove, and the lower end of waveform compression spring withstands on the boss; The internal tooth that back taper is arranged in the inside of pawl ring, there is the external tooth that is meshed with internal tooth in the central axis outside above the pawl ring.
The upper outside of above-mentioned central axis can be set with two last packing element and lower rubber cylinders that can set from top to bottom successively, is installed with grommet by sulfuration between last packing element and the lower rubber cylinder; The inside of last packing element and lower rubber cylinder have respectively be outside the annular mounting groove of narrow inner width, in annular mounting groove, by sulfuration retainer ring is installed; Be installed with upper baffle ring and lower baffle ring by sulfuration respectively in last packing element upper end and lower rubber cylinder lower end; The upper end of upper baffle ring withstands on the bottom of tapered sleeve, and the lower end of lower baffle ring is seated at down on the tapered sleeve.
On the above-mentioned connection boss external screw thread is arranged, connect boss and can be fixedly mounted in second sleeve by screw thread; Internal thread is arranged at the top at the chamber cover, and the lower end of central axis and chamber cover are fixed together by screw thread.
The lower end of above-mentioned chamber cover has external screw thread to connect boss, and cover lower end, chamber can be installed with lower contact by screw thread; Put in lower contact and chamber and to be installed with holding screw; In the lower end of lower contact internal thread or external screw thread are arranged, in the upper end of central axis external screw thread or internal thread are arranged.
Can be equipped with on the central axis of the lower end of above-mentioned piston and to be positioned at the snap ring of piston axial location and press the chamber.
Can be installed with sealing ring between above-mentioned each retainer ring and the central axis; Sliding sleeve is installed with sealing ring respectively and between central axis and the chamber cover; Be installed with sealing ring between the top of chamber cover and the central axis; Be installed with sealing ring between the lower end of chamber cover and the lower contact.
The utility model reasonable and compact in structure, easy to use; When hydraulic coupling promotes piston stroking upward, by last tapered sleeve and following tapered sleeve effect, make upper slips hangoff receptacle and lower slips hangoff receptacle compress jump ring respectively in upper slips cap and lower slips cap, upper slips bottom and lower slips top are expanded radially into outer layer sleeve, realize hanging; Packing element is subjected to the thrust protuberance to realize setting simultaneously, and is simple to operate, easy for installation; By the realization self-locking that is meshed with external tooth of pawl ring internal tooth, improve the reliability that hangs; Retainer ring is arranged respectively in last packing element and lower rubber cylinder, improve seat envelope effect.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master on the utility model most preferred embodiment top.
Accompanying drawing 2 is looked the half section structural representation for the master of the utility model most preferred embodiment bottom.
Accompanying drawing 3 be in the accompanying drawing 1 I to local structure for amplifying schematic diagram.
Accompanying drawing 4 is the axle geodesic structure schematic diagram of following split-type slip system in the utility model.
Accompanying drawing 5 is the axle geodesic structure schematic diagram of lower slips in the utility model.
Coding in the accompanying drawing is respectively: axle centered by 1, and 2 is spout hole, and 3 is outer lug boss, and 4 is piston, 5 is boss, and 6 is first shear screw, and 7 are the chamber cover, and 8 is second sleeve, 9 for pressing the chamber, and 10 is the entrance pressure hole, and 11 is the upper slips cap, 12 is axial draw-in groove, and 13 is jump ring, and 14 is the lower slips cap, 15 is last tapered sleeve, and 16 are following tapered sleeve, and 17 for connecting boss, 18 is first sleeve, and 19 are the butt joint boss, and 20 is upper slips, 21 is lower slips, and 22 for piston moves axially chute, and 23 is limited impression, 24 is opening sleeve, and 25 are the self-locking installation cavity, and 26 is the pawl ring, 27 is retainer ring, and 28 are waveform compression spring, and 29 is internal tooth, 30 is external tooth, and 31 is lower rubber cylinder, and 32 is grommet, 33 is retainer ring, and 34 is upper baffle ring, and 35 is lower baffle ring, 36 for external screw thread connects boss, and 37 are lower contact, and 38 is holding screw, 39 is snap ring, and 40 is sealing ring, and 41 is last packing element, 42 is second shear screw, and 43 is the 3rd shear screw, and 44 is sliding sleeve.
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 1 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 1.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2, this anticreep distinguish slip hydraulic hanging packer comprises central axis 1, piston 4, chamber cover 7, first sleeve 8, second sleeve 18 and sliding sleeve 44; The outside, lower end at central axis 1 is installed with chamber cover 7, upper end at chamber cover 7 fixedly has internal diameter to overlap first sleeve 8 of 7 internal diameters greater than the chamber, the piston that the formation opening makes progress between first sleeve 8 and the central axis 1 moves axially chute 22, the piston 4 that can move up and down in moving axially chute 22, piston is installed, internal diameter and external diameter are fixedly arranged all greater than the sliding sleeve 44 of piston 4 internal diameters and external diameter in the lower end of piston 4, the bottom of sliding sleeve 44 and piston move axially the pressure chamber 9 that spacing is arranged between chute 22 bottoms and form annular; On the central axis 1 corresponding with pressing chamber 9 entrance pressure hole 10 is arranged; Fixedly there is boss 5 in the outside, upper end at piston 4, is fixed together by first shear screw 6 between boss 5 and first sleeve 8, has at least one and piston to move axially the spout hole 2 that chute 22 communicates respectively on piston 4 and first sleeve 8; Upper outside at central axis 1 is equipped with the packing element that can set, and is separately installed with tapered sleeve 15 in the top and bottom of packing element and is fixedly installed togather with central axis 1 with following tapered sleeve 16 and by second shear screw 42 and the 3rd shear screw 43; Be set with for split-type slip system on hanging in the outside, upper end of last tapered sleeve 15; In the upper end of central axis 1 outer lug boss 3 is arranged, the upper end of last split-type slip system withstands on the outer lug boss 3; Split-type slip system under the outside, lower end of tapered sleeve 16 is set with down forms annular self-locking installation cavity 25 between the bottom of following split-type slip system and piston 4 tops; In self-locking installation cavity 25, be installed with self-locking device.The ground pitching pressure of spraining, high-pressure fluid enter by entrance pressure hole 10 presses chamber 9, fluid pressure to promote sliding sleeve 44 and piston 4 upwards movement piston moves axially chute 22 in; First shear screw 6 is cut off, up and cut off the 3rd shear screw 43 and second shear screw 42 successively on the piston 4, following split-type slip system, following tapered sleeve 16, packing element and last tapered sleeve 15 are up, the up back expanded radially of the thrust that last split-type slip system is subjected to tapered sleeve 15 is suspended in the sleeve pipe, and the thrust expanded radially that following split-type slip system is subjected to down tapered sleeve 16 is suspended in the sleeve pipe; Continue to exert pressure, packing element is subjected to the thrust protuberance to realize setting, and realizes that the suspension of the utility model in sleeve pipe sets; Simultaneously self-locking device can prevent from hanging set the back down the split-type slip system be subjected to effect such as gravity descending, improve to hang and set efficient; The reliability height, operation and easy to use.
Can according to actual needs above-mentioned anticreep distinguish slip hydraulic hanging packer be made further optimization and/or improvements:
Shown in accompanying drawing 1,2, last split-type slip system comprises upper slips 20, upper slips cap 11 and jump ring 13; Central axis 1 above last tapered sleeve 15 is equipped with upper slips cap 11, and upper slips cap 11 forms the upper slips mounting groove that Open Side Down with central axis 1; In the distribution of upper slips mounting groove inner periphery the upper slips 20 that there is the awl tooth at least three outsides is installed; Upper outside at each upper slips 20 has corresponding axial draw-in groove 12 with upper slips cap 11 axial lengths respectively, is separately installed with jump ring 13 in each axial draw-in groove 12; The outer end of jump ring 13 withstands on the upper slips cap 11; The inner of jump ring 13 withstands on the top of upper slips 20 on the central axis 1; The bottom of each upper slips 20 outward-dipping and and central axis 1 between form draw-in groove in the up-narrow and down-wide taper; The upper outside of last tapered sleeve 15 is down wide narrow taper type down, and the upper end of last tapered sleeve 15 is installed in the taper in the draw-in groove; Be distributed with the jump ring of being convenient to jump ring 13 installations in upper slips cap 11 lower circumference groove is installed; Following split-type slip system comprises lower slips 21, lower slips cap 14 and jump ring 13; Central axis 1 below following tapered sleeve 16 is set with lower slips cap 14, forms the lower slips mounting groove that opening makes progress between lower slips cap 14 and the central axis 1; There is the lower slips 21 of boring tooth the outside that at least three arcs are installed in the distribution of lower slips mounting groove inner periphery; The outside, bottom at each lower slips 21 has corresponding axial draw-in groove 12 with lower slips cap 14 axial lengths respectively, is separately installed with jump ring 13 in each axial draw-in groove 12; The outer end of jump ring 13 withstands on the lower slips cap 14; The inner of jump ring 13 withstands on the bottom of lower slips 21 on the central axis 1; The top of each lower slips 21 outward-dipping and and central axis 1 between form taper lower bayonet slot wide at the top and narrow at the bottom; The outside, bottom of following tapered sleeve 16 is narrow wide taper type down down, and the lower end of following tapered sleeve 16 is installed in the taper lower bayonet slot; There is the jump ring of being convenient to jump ring 13 installations that groove is installed in lower slips cap 14 top circle distribution; Be installed with the connection boss 17 of annular in the lower end of lower slips cap 14; Connecting boss 17 is installed in second sleeve 18; In the bottom that connects boss 17, the up-narrow and down-wide taper mounting groove that Open Side Down is arranged, form the self-locking installation cavity 25 of annular between taper mounting groove and piston 4 tops.The ground pitching pressure of spraining, high-pressure fluid enters by entrance pressure hole 10 and presses chamber 9, first shear screw 6 is cut off, it is up to promote piston 4, boss 5 and second sleeve 5, and thrust is cut off the 3rd shear screw 43 and second shear screw 42 successively, and lower slips cap 14, lower slips 21, jump ring 13, following tapered sleeve 16, packing element and last tapered sleeve 15 are up, last tapered sleeve 15 is up in the draw-in groove in taper, and by conical surface effect, upper slips 20 radial compression jump rings 13, the bottom of upper slips 20 extends radially out to outer layer sleeve; The taper lower bayonet slot upwards is sleeved on down on the tapered sleeve 16 and by conical surface effect, lower slips 21 radial compression jump rings 13, and the top of lower slips 21 extends radially out to outer layer sleeve; High-pressure fluid continues applied thrust, and packing element radially is expanded to the outer layer sleeve wall, realizes setting; When being lowered to the utility model in the sleeve pipe, jump ring 13 can effectively prevent the extension of seat in advance of upper slips 20 and lower slips 21; Upper slips 20 and lower slips 21 are when radial dilatation simultaneously, and the plastotype distortion does not take place for upper slips 20 and lower slips 21, and is reusable, reduces production costs.
Shown in accompanying drawing 1,4,5, in the distribution of upper slips cap 11 inner peripherys six upper slipses 20 that the bottom is outward-dipping are installed, the both sides, top of each upper slips 20 have butt joint boss 19 respectively, and butt joint formation is circular mutually for butt joint boss 19; In the distribution of lower slips cap 14 inner peripherys six lower slipses 21 that top is outward-dipping are installed, the both sides, bottom of each lower slips 21 have butt joint boss 19 respectively, and butt joint formation is circular mutually for butt joint boss 19.Butt joint boss 19 makes the upper slips 20 and the lower slips 21 that are installed in upper slips cap 11 and the lower slips cap 14 radially spacing, and six upper slipses 20 and six lower slipses 21 can increase itself and the contact area of central axis 1, improve the reliability of suspension.
As shown in Figure 1, the limited impression 23 of annular is arranged on the central axis 1 corresponding with upper slips 20 and last tapered sleeve 15 tops, fixed installation is useful on epicone cover 15 and moves spacing opening sleeve 24 in the top of limited impression 23, and upper slips 20 is sleeved on the opening sleeve 24; In last tapered sleeve 15 tops, the opening draw-in groove that is meshed with opening sleeve 24 is arranged.Last tapered sleeve 15 can go upward to opening sleeve 24 bottoms and carry out spacingly, can prevent the excessive damage upper slips 20 of thrust; Opening sleeve 24 plays the effect of position limitation protection.
Shown in accompanying drawing 1,5, self-locking device comprises pawl ring 26, retainer ring 27 and waveform compression spring 28; Top is installed in self-locking installation cavity 25 from top to bottom successively is up-narrow and down-wide pawl ring 26, retainer ring 27 and waveform compression spring 28; The upper end of waveform compression spring 28 withstands on retainer ring 27 and pawl ring 26 in the taper mounting groove, and the lower end of waveform compression spring 28 withstands on the boss 5; The internal tooth 29 that back taper is arranged in the inside of pawl ring 26, there is the external tooth 30 that is meshed with internal tooth 29 in central axis 1 outside above pawl ring 26.Be meshed with external tooth 30 by internal tooth 29, it is 4 descending to stop piston seal to overlap, and plays the effect of self-locking and retaining.
As shown in Figure 1, the upper outside of central axis 1 from top to bottom be set with successively two can set on packing element 41 and lower rubber cylinder 31, be installed with grommet 32 by sulfuration between last packing element 41 and the lower rubber cylinder 31; The inside of last packing element 41 and lower rubber cylinder 31 have respectively be outside the annular mounting groove of narrow inner width, in annular mounting groove, by sulfuration retainer ring 33 is installed; Be installed with upper baffle ring 34 and lower baffle ring 35 by sulfuration respectively in last packing element 41 upper ends and lower rubber cylinder 31 lower ends; The upper end of upper baffle ring 34 withstands on the bottom of tapered sleeve 15, and the lower end of lower baffle ring 35 is seated at down on the tapered sleeve 16.Grommet 32, upper baffle ring 34 and 35 pairs of last packing elements 41 of lower baffle ring and lower rubber cylinder 31 play axial restraint and spacing effect; Retainer ring 33 can make packing element 41 and lower rubber cylinder 31 homogeneous deformations, improves seat envelope effect.
Shown in accompanying drawing 1,2, at connection boss 17 external screw thread is arranged, connect boss 17 and be fixedly mounted in second sleeve 18 by screw thread; Internal thread is arranged at the top at chamber cover 7, and the lower end of central axis 1 and chamber are overlapped 7 and be fixed together by screw thread.Can be convenient to dismounting between lower slips cap 14 and the piston seal cover 4 like this; Dismounting between chamber cover 7 and the central axis 1.
Shown in accompanying drawing 1,2, there is external screw thread to connect boss 36 in the lower end of chamber cover 7, the chamber is overlapped 7 lower ends and is installed with lower contact 37 by screw thread; Be installed with holding screw 38 in lower contact 37 and chamber cover 7; In the lower end of lower contact 37 internal thread or external screw thread are arranged, in the upper end of central axis 1 external screw thread or internal thread are arranged.Lower contact 37 can be convenient to the utility model and be used for being connected with other devices of down-hole; Holding screw 38 is used for the radially spacing effect of lower contact 37.
As shown in Figure 2, the central axis 1 in the lower end of piston 4 is equipped with and to be positioned at the snap ring 39 of piston 4 axial location and presses chamber 9.When piston seal cover 4 is installed, be convenient to install piston seal and overlap 4 o'clock axial location.
Shown in accompanying drawing 1,2, be installed with sealing ring 40 between each retainer ring 33 and the central axis 1; Sliding sleeve 44 is installed with sealing ring 40 respectively and between central axis 1 and the chamber cover 7; Be installed with sealing ring 40 between the top of chamber cover 7 and the central axis 1; Be installed with sealing ring 40 between the lower end of chamber cover 7 and the lower contact 37.Sealing ring 40 can play the effect that increases sealing between the contact surface.
Following 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: the top that at first utility model is installed in the completion tubular string; Whole pressure break pipe is sealed in behind the well again and reach the position of design well depth, the pitching operation that builds the pressure is carried out on ground, and high-pressure fluid enters by entrance pressure hole 10 and presses chamber 9, and along with the continuous increase of pressure, first shear screw 6 is cut off, and it is up that hydraulic coupling promotes piston 4; Piston 4 and lower slips cap 14 move up, and exercise lower slips 21 bottoms on the conical surface of tapered sleeve 16 under lower slips 21 edges and extend radially out to outer layer sleeve; Continuous increase along with hydraulic coupling, second shear screw 42 and the 3rd shear screw 43 are cut off, under the effect of fluid cylinder, it is up that following tapered sleeve 16 drives lower baffle ring 35, retainer ring 33, lower rubber cylinder 31, grommet 32, last packing element 41 and last tapered sleeve 15 successively, and last tapered sleeve 15 draw-in groove in taper is up and make upper slips 20 along extending radially out to outer layer sleeve; Realize the new suspension of this practicality; Along with the continuous increase of hydraulic coupling, piston 4 continues up, and last packing element 41 and lower rubber cylinder 31 are subjected to action of hydraulic force radially to be expanded to outer layer sleeve wall place, finishes the utility model seat envelope.
Claims (12)
1. an anticreep distinguish slip hydraulic hanging packer is characterized in that comprising central axis, piston, chamber cover, first sleeve, second sleeve and sliding sleeve; The outside, lower end at central axis is installed with the chamber cover, internal diameter is fixedly arranged greater than first sleeve of chamber cover internal diameter in the upper end of chamber cover, the piston that the formation opening makes progress between first sleeve and the central axis moves axially chute, the piston that can move up and down in moving axially chute, piston is installed, internal diameter and external diameter are fixedly arranged all greater than the sliding sleeve of piston inner diameter and external diameter in the lower end of piston, the bottom of sliding sleeve and piston move axially the pressure chamber that spacing is arranged between the chute bottom and form annular; On the central axis corresponding with pressing the chamber entrance pressure hole is arranged; Fixedly there is boss in the outside, upper end at piston, is fixed together by first shear screw between boss and first sleeve, has at least one and piston to move axially the spout hole that chute communicates respectively on piston and first sleeve; Upper outside at central axis is equipped with the packing element that can set, and is separately installed with tapered sleeve and following tapered sleeve in the top and bottom of packing element and is fixedly installed togather by second shear screw and the 3rd shear screw and central axis; Be set with for split-type slip system on hanging in the outside, upper end of last tapered sleeve; There is outer lug boss upper end at central axis, and the upper end of last split-type slip system withstands on the outer lug boss; Split-type slip system under the outside, lower end of tapered sleeve is set with down forms annular self-locking installation cavity between the bottom of following split-type slip system and the piston tip; In the self-locking installation cavity, be installed with self-locking device.
2. anticreep distinguish slip hydraulic hanging packer according to claim 1 is characterized in that the split-type slip system comprises upper slips, upper slips cap and jump ring; Central axis above the epicone cover is equipped with the upper slips cap, and upper slips cap and central axis form the upper slips mounting groove that Open Side Down; In the distribution of upper slips mounting groove inner periphery the upper slips that there is the awl tooth at least three outsides is installed; Upper outside at each upper slips has respectively and the corresponding axial draw-in groove of upper slips cap axial length, is separately installed with jump ring in each axial draw-in groove; The outer end of jump ring withstands on the upper slips cap; The inner of jump ring withstands on the top of upper slips on the central axis; The bottom of each upper slips outward-dipping and and central axis between form draw-in groove in the up-narrow and down-wide taper; The upper outside of last tapered sleeve is down wide narrow taper type down, and the upper end of last tapered sleeve is installed in the taper in the draw-in groove; Be distributed with the jump ring of being convenient to the jump ring installation in upper slips cap lower circumference groove is installed; Following split-type slip system comprises lower slips, lower slips cap and jump ring; Central axis below following tapered sleeve is set with the lower slips cap, forms the lower slips mounting groove that opening makes progress between lower slips cap and the central axis; There is the lower slips of boring tooth the outside that at least three arcs are installed in the distribution of lower slips mounting groove inner periphery; The outside, bottom at each lower slips has respectively and the corresponding axial draw-in groove of lower slips cap axial length, is separately installed with jump ring in each axial draw-in groove; The outer end of jump ring withstands on the lower slips cap; The inner of jump ring withstands on the bottom of lower slips on the central axis; The top of each lower slips outward-dipping and and central axis between form taper lower bayonet slot wide at the top and narrow at the bottom; The outside, bottom of following tapered sleeve is narrow wide taper type down down, and the lower end of following tapered sleeve is installed in the taper lower bayonet slot; There is the jump ring of being convenient to the jump ring installation that groove is installed in lower slips cap top circle distribution; Be installed with the connection boss of annular in the lower end of lower slips cap; Connecting boss is installed in second sleeve; In the bottom that connects boss, the up-narrow and down-wide taper mounting groove that Open Side Down is arranged, form the self-locking installation cavity of annular between taper mounting groove and the top land.
3. anticreep distinguish slip hydraulic hanging packer according to claim 2, it is characterized in that the distribution of upper slips cap inner periphery is equipped with six upper slipses that the bottom is outward-dipping, the both sides, top of each upper slips have the butt joint boss respectively, and it is circular that the butt joint boss docks formation mutually; In the distribution of lower slips cap inner periphery six lower slipses that top is outward-dipping are installed, the both sides, bottom of each lower slips have the butt joint boss respectively, and it is circular that the butt joint boss docks formation mutually.
4. anticreep distinguish slip hydraulic hanging packer according to claim 2, it is characterized in that having on the central axis corresponding with upper slips and epicone cover top the limited impression of annular, fixed installation is useful on the mobile spacing opening sleeve of epicone cover in the top of limited impression, and upper slips is sleeved on the opening sleeve; In epicone cover top, the opening draw-in groove that is meshed with opening sleeve is arranged.
5. anticreep distinguish slip hydraulic hanging packer according to claim 3, it is characterized in that having on the central axis corresponding with upper slips and epicone cover top the limited impression of annular, fixed installation is useful on the mobile spacing opening sleeve of epicone cover in the top of limited impression, and upper slips is sleeved on the opening sleeve; In epicone cover top, the opening draw-in groove that is meshed with opening sleeve is arranged.
6. according to claim 1 or 2 or 3 or 4 or 5 described anticreep distinguish slip hydraulic hanging packers, it is characterized in that self-locking device comprises pawl ring, retainer ring and waveform compression spring; Top is installed in the self-locking installation cavity from top to bottom successively is up-narrow and down-wide pawl ring, retainer ring and waveform compression spring; The upper end of waveform compression spring withstands on retainer ring and pawl ring in the taper mounting groove, and the lower end of waveform compression spring withstands on the boss; The internal tooth that back taper is arranged in the inside of pawl ring, there is the external tooth that is meshed with internal tooth in the central axis outside above the pawl ring; Or/and the upper outside of central axis is set with two last packing element and the lower rubber cylinders that can set from top to bottom successively, is installed with grommet by sulfuration between last packing element and the lower rubber cylinder; The inside of last packing element and lower rubber cylinder have respectively be outside the annular mounting groove of narrow inner width, in annular mounting groove, by sulfuration retainer ring is installed; Be installed with upper baffle ring and lower baffle ring by sulfuration respectively in last packing element upper end and lower rubber cylinder lower end; The upper end of upper baffle ring withstands on the bottom of tapered sleeve, and the lower end of lower baffle ring is seated at down on the tapered sleeve.
7. according to any described anticreep distinguish slip hydraulic hanging packer of claim 2 to 5, it is characterized in that connecting external screw thread is arranged on the boss, connect boss and be fixedly mounted in second sleeve by screw thread; Internal thread is arranged at the top at the chamber cover, and the lower end of central axis and chamber cover are fixed together by screw thread; Or/and the lower end of chamber cover has external screw thread to connect boss, cover lower end, chamber is installed with lower contact by screw thread; Put in lower contact and chamber and to be installed with holding screw; In the lower end of lower contact internal thread or external screw thread are arranged, in the upper end of central axis external screw thread or internal thread are arranged.
8. anticreep distinguish slip hydraulic hanging packer according to claim 6 is characterized in that connecting external screw thread is arranged on the boss, connects boss and is fixedly mounted in second sleeve by screw thread; Internal thread is arranged at the top at the chamber cover, and the lower end of central axis and chamber cover are fixed together by screw thread; Or/and the lower end of chamber cover has external screw thread to connect boss, cover lower end, chamber is installed with lower contact by screw thread; Put in lower contact and chamber and to be installed with holding screw; In the lower end of lower contact internal thread or external screw thread are arranged, in the upper end of central axis external screw thread or internal thread are arranged.
9. according to any described anticreep distinguish slip hydraulic hanging packer of claim 1 to 5, it is characterized in that being equipped with on the central axis of lower end of piston and being positioned at the snap ring of piston axial location and press the chamber; Or/and, be installed with sealing ring between each retainer ring and the central axis; Sliding sleeve is installed with sealing ring respectively and between central axis and the chamber cover; Be installed with sealing ring between the top of chamber cover and the central axis; Be installed with sealing ring between the lower end of chamber cover and the lower contact.
10. anticreep distinguish slip hydraulic hanging packer according to claim 6 is characterized in that being equipped with on the central axis of lower end of piston and being positioned at the snap ring of piston axial location and presses the chamber; Or/and, be installed with sealing ring between each retainer ring and the central axis; Sliding sleeve is installed with sealing ring respectively and between central axis and the chamber cover; Be installed with sealing ring between the top of chamber cover and the central axis; Be installed with sealing ring between the lower end of chamber cover and the lower contact.
11. anticreep distinguish slip hydraulic hanging packer according to claim 7 is characterized in that being equipped with on the central axis of lower end of piston and being positioned at the snap ring of piston axial location and presses the chamber; Or/and, be installed with sealing ring between each retainer ring and the central axis; Sliding sleeve is installed with sealing ring respectively and between central axis and the chamber cover; Be installed with sealing ring between the top of chamber cover and the central axis; Be installed with sealing ring between the lower end of chamber cover and the lower contact.
12. anticreep distinguish slip hydraulic hanging packer according to claim 8 is characterized in that being equipped with on the central axis of lower end of piston and being positioned at the snap ring of piston axial location and presses the chamber; Or/and, be installed with sealing ring between each retainer ring and the central axis; Sliding sleeve is installed with sealing ring respectively and between central axis and the chamber cover; Be installed with sealing ring between the top of chamber cover and the central axis; Be installed with sealing ring between the lower end of chamber cover and the lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675535 CN203161142U (en) | 2012-12-10 | 2012-12-10 | Anti-fall valvular slip hydraulic hanging packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675535 CN203161142U (en) | 2012-12-10 | 2012-12-10 | Anti-fall valvular slip hydraulic hanging packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161142U true CN203161142U (en) | 2013-08-28 |
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ID=49022334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220675535 Withdrawn - After Issue CN203161142U (en) | 2012-12-10 | 2012-12-10 | Anti-fall valvular slip hydraulic hanging packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161142U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979471A (en) * | 2012-12-10 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Anti-fall split slip hydraulic hanging packer |
| CN108425655A (en) * | 2018-02-07 | 2018-08-21 | 中国石油集团西部钻探工程有限公司 | Retrievable hanging packer for flow string under no killing well |
| WO2021154907A1 (en) * | 2020-01-28 | 2021-08-05 | Schlumberger Technology Corporation | Liner hanger slip retention system and method |
| CN114293947A (en) * | 2021-12-30 | 2022-04-08 | 扬州睿德石油机械有限公司 | Packer (CN) |
-
2012
- 2012-12-10 CN CN 201220675535 patent/CN203161142U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979471A (en) * | 2012-12-10 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Anti-fall split slip hydraulic hanging packer |
| CN102979471B (en) * | 2012-12-10 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Anticreep distinguish slip hydraulic hanging packer |
| CN108425655A (en) * | 2018-02-07 | 2018-08-21 | 中国石油集团西部钻探工程有限公司 | Retrievable hanging packer for flow string under no killing well |
| CN108425655B (en) * | 2018-02-07 | 2024-01-23 | 中国石油天然气集团有限公司 | Removable hanging packer for snubbing production string |
| WO2021154907A1 (en) * | 2020-01-28 | 2021-08-05 | Schlumberger Technology Corporation | Liner hanger slip retention system and method |
| US12091930B2 (en) | 2020-01-28 | 2024-09-17 | Schlumberger Technology Corporation | Liner hanger slip retention system and method |
| CN114293947A (en) * | 2021-12-30 | 2022-04-08 | 扬州睿德石油机械有限公司 | Packer (CN) |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20150819 |
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| RGAV | Abandon patent right to avoid regrant |