CN103790547A - Suspended packer device - Google Patents
Suspended packer device Download PDFInfo
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- CN103790547A CN103790547A CN201410047571.0A CN201410047571A CN103790547A CN 103790547 A CN103790547 A CN 103790547A CN 201410047571 A CN201410047571 A CN 201410047571A CN 103790547 A CN103790547 A CN 103790547A
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Abstract
The invention relates to the technical field of packer devices for well completion operation, in particular to a suspended packer device. The suspended packer device comprises a body, an upper connector and a cylinder sleeve. A lower connector is fixedly installed on the outer side of the lower end of the body, the inner side of the lower portion of the upper connector and the outer side of the upper end of the body are fixedly installed together, an inverted tooth cylinder device is fixedly connected to the outer side of the lower end of the upper connector through a first shear pin, the outer side of the lower portion of the inverted tooth cylinder device and the inner side of the upper end of the cylinder sleeve are fixedly installed together, and a spacer sleeve is fixedly installed on the inner side of the lower end of the cylinder sleeve. The suspended packer device is reasonable and compact in structure and convenient to use, the aims of reliable suspending and reliable setting are achieved through matched use of the body, the inverted tooth cylinder device, the cylinder sleeve, a claw sleeve, a floating sealing sleeve, an upper slip, a lower slip, a rubber cylinder assembly and the lower connector, the suspended packer device has the advantages of being high in reliability and good in sealing packing effect, the potential safety hazards are reduced, convenience is brought to operation, the working efficiency is improved, and the production cost is reduced.
Description
Technical field
the present invention relates to completion practice packer device technical field, is a kind of hanging packer device.
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 is exactly to utilize packer to carry out the isolation operation of shaft bottom reservoir.In conventional gas and oil is hidden, utilize packer to carry out the sealing between annular space sealing, bore hole reservoir and the tubing string in sleeve pipe; In unconventional oil-gas reservoir completion practice, also need to utilize hanging packer to carry out the isolation between the interior annular space sealing of sleeve pipe and different reservoir, therefore, hanging packer packer is requisite technological means in completion practice, and the importance of packer has some idea of.At present, the packer that Oil Field uses, is prone to sit in advance and hangs the severe phenomenon setting.
Summary of the invention
the invention provides a kind of hanging packer device, overcome the deficiency of above-mentioned prior art, it can effectively solve existing packer and be prone to the problem that extension sets of sitting in advance.
technical scheme of the present invention realizes by following measures: a kind of hanging packer device, comprises body, top connection and cylinder sleeve, outside, lower end at body is installed with lower contact, the lower inside of top connection and outside, the upper end of body are fixedly installed togather, outside, lower end in top connection is fixedly connected with pawl cartridge by the first shear pin, the lower outside of pawl cartridge and inner side, the upper end of cylinder sleeve are fixedly installed togather, inner side, lower end at cylinder sleeve is installed with interstage sleeve, be fixedly connected with tapered sleeve and lower tapered sleeve by the second shear pin interval respectively in the body outside between interstage sleeve and lower contact, body outside between upper tapered sleeve and lower tapered sleeve is set with packing element assembly, body outside between interstage sleeve and upper tapered sleeve is provided with upper slips, body outside between lower tapered sleeve and lower contact is provided with lower slips, the lower inside of upper slips is inclined-plane wide at the top and narrow at the bottom, the upper outside of upper tapered sleeve is up-narrow and down-wide inclined-plane, the inner side, lower end of upper slips is pressed on the upper outside face of tapered sleeve, the upper inner of lower slips is up-narrow and down-wide inclined-plane, the lower outside of lower tapered sleeve is inclined-plane wide at the top and narrow at the bottom, the inner side, upper end of lower slips is pressed on the lower outside face of lower tapered sleeve, be installed with pawl cover in the upper outside of body, body outside between pawl cover and interstage sleeve is fixedly connected with floating seal cover by the 3rd shear pin, between pawl cover, body, floating seal cover and cylinder sleeve, form the first annular seal space, on body, have the inlet opening being connected with the first annular seal space of at least one.
the further optimization and/or improvements to foregoing invention technical scheme below:
above-mentioned pawl cartridge comprises shear pin cylinder and two-way pawl cylinder; The upper inner of shear pin cylinder and outside, the lower end of top connection are fixed together by the first shear pin, and the inner side, upper end of shear pin cylinder lower outside and cylinder sleeve is fixedly installed togather; Body outside between pawl cover and top connection is distributed with crown the first outer latch down vertically, be distributed with crown the first interior pawl upward in the inner side of two-way pawl cylinder, the inner side of two-way pawl cylinder and the upper outside of body mesh together by the first outer latch and the first interior pawl; Inner side, middle part at shear pin cylinder is distributed with crown the second interior latch down, at the upper outside distribution crown of two-way pawl cylinder the second outer pawl upward, the inner side, middle part of shear pin cylinder and the upper outside of two-way pawl cylinder mesh together by the second interior latch and the second outer pawl; Between shear pin cylinder, two-way pawl cylinder, body, pawl cover and cylinder sleeve, form the second annular seal space, on cylinder sleeve, have the first relief hole communicating with the second annular seal space of at least one; Interstage sleeve is sleeved on the outside, middle part of body, forms the 3rd annular seal space between floating seal cover, body, interstage sleeve and cylinder sleeve, has the second relief hole being connected with the 3rd annular seal space of at least one on cylinder sleeve.
above-mentioned packing element assembly comprises upper outside retainer ring, upper interior retainer ring, upper packing element baffle ring, packing element, lower rubber cylinder baffle ring, lower interior retainer ring and lower outside retainer ring; The fixing sulfuration of upper packing element baffle ring is in the outside, upper end of packing element, the body outside between upper tapered sleeve and upper packing element baffle ring be set with successively from top to bottom upper outside retainer ring and in retainer ring; The fixing sulfuration of lower rubber cylinder baffle ring is in the outside, lower end of packing element, and the body outside between lower rubber cylinder baffle ring and lower tapered sleeve is set with lower interior retainer ring and lower outside retainer ring from top to bottom successively; There is support ring mounting groove inner side, middle part at packing element, and the outside of corresponding body is fixed with support ring, and the fixing sulfuration of support ring is in support ring mounting groove.
the above-mentioned flexible pawl of lower end outer rim stationary distribution at pawl cover, be fixed with pawl platform in the lower end of each elastic claw, the top of pawl platform is up-narrow and down-wide inclined-plane, there is interior inclined-plane wide at the top and narrow at the bottom the cylinder sleeve inner side of corresponding pawl platform position, upper end at floating seal cover is fixed with top cylinder, and the upper outside of pawl platform is pressed on by top cylinder on the interior inclined-plane of cylinder sleeve; There is respectively semi-ring mounting groove in the body outside that is positioned at pawl cover above and below, in each semi-ring mounting groove, the semi-ring that pair of matched is closed is installed, there is rubber ring mounting groove in the two semi-ring outsides of matching along circumference, in rubber ring mounting groove, be installed with rubber ring and the inner of two semi-rings that match is pressed in corresponding semi-ring mounting groove, pawl cover is installed between two pairs of semi-rings.
internal thread or internal thread are arranged at the above-mentioned top in top connection; There are internal thread or internal thread in the bottom of lower contact.
between above-mentioned top connection and body, be fixedly installed togather by screw thread, between lower contact and body, be fixedly installed togather by screw thread, the inner side, lower end of the lower outside of two-way pawl cylinder and shear pin cylinder is fixedly installed togather by screw thread, shear pin cylinder and and cylinder sleeve be fixedly installed togather by screw thread, interstage sleeve and cylinder sleeve are fixedly installed togather by screw thread; Between top connection and body, mark closely and be fixed together by the anti-rotation of at least one, shear pin cylinder and and cylinder sleeve between mark closely and be fixed together by the anti-rotation of at least one, between lower contact and body, mark closely and be fixed together by the anti-rotation of at least one.
there are respectively mounting groove and the outer mounting groove of pawl cover in pawl cover in the above-mentioned inner side at pawl cover and outside, and in pawl overlaps, the upper and lower of mounting groove is separately installed with Sealing shield ring, and in pawl overlaps, the middle part of mounting groove is provided with sealing ring; Outside pawl cover, the upper and lower of mounting groove is separately installed with Sealing shield ring, and outside pawl cover, the middle part of mounting groove is provided with sealing ring; The inner side of floating seal cover and outside have respectively in floating seal cover mounting groove and floating seal overlap outside mounting groove, in floating seal cover, the upper and lower of mounting groove is separately installed with Sealing shield ring, and in floating seal cover, the middle part of mounting groove is provided with sealing ring; Outside floating seal cover, the upper and lower of mounting groove is separately installed with Sealing shield ring, and outside floating seal cover, the middle part of mounting groove is provided with sealing ring; Between top connection and body, sealing ring is installed; Between lower contact and body, sealing ring is installed.
reasonable and compact in structure of the present invention, easy to use, by being used in conjunction with of body, pawl cartridge, cylinder sleeve, pawl cover, floating seal cover, upper slips, lower slips, packing element assembly and lower contact, realize reliable seat and hang the object setting, there is reliability height and the effective feature of seal pack, reduced potential safety hazard, facilitated operation, improve operating efficiency, reduced cost of production.
Accompanying drawing explanation
the master that accompanying drawing 1 is the first half of the present invention looks half section structural representation.
the master that accompanying drawing 2 is the latter half of the present invention looks half section structural representation.
coding in accompanying drawing is respectively: 1 is body, 2 is top connection, 3 is cylinder sleeve, 4 is lower contact, 5 is the first shear pin, 6 is interstage sleeve, 7 is the second shear pin, 8 is upper tapered sleeve, 9 is lower tapered sleeve, 10 is upper slips, 11 is lower slips, 12 is pawl cover, 13 is the 3rd shear pin, 14 is floating seal cover, 15 is the first annular seal space, 16 is inlet opening, 17 is shear pin cylinder, 18 is two-way pawl cylinder, 19 is the second annular seal space, 20 is the first relief hole, 21 is the 3rd annular seal space, 22 is the second relief hole, 23 is upper outside retainer ring, 24 is upper interior retainer ring, 25 is upper packing element baffle ring, 26 is packing element, 27 is lower rubber cylinder baffle ring, 28 is lower interior retainer ring, 29 is lower outside retainer ring, 30 is support ring, 31 is elastic claw, 32 is pawl platform, 33 is top cylinder, 34 is semi-ring, 35 is rubber ring, 36 mark closely for anti-rotation, 37 is mounting groove in pawl cover, 38 is the outer mounting groove of pawl cover, 39 is Sealing shield ring, 40 is sealing ring, 41 is mounting groove in floating seal cover, 42 is the outer mounting groove of floating seal cover.
The specific embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, 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 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the invention will be further described:
as shown in accompanying drawing 1,2, this hanging packer device comprises body 1, top connection 2 and cylinder sleeve 3, outside, lower end at body 1 is installed with lower contact 4, the outside, upper end of the lower inside of top connection 2 and body 1 is fixedly installed togather, outside, lower end in top connection 2 is fixedly connected with pawl cartridge by the first shear pin 5, the inner side, upper end of the lower outside of pawl cartridge and cylinder sleeve 3 is fixedly installed togather, inner side, lower end at cylinder sleeve 3 is installed with interstage sleeve 6, body 1 outside between interstage sleeve 6 and lower contact 4 is fixedly connected with tapered sleeve 8 and lower tapered sleeve 9 by the second shear pin 7 intervals respectively, body 1 outside between upper tapered sleeve 8 and lower tapered sleeve 9 is set with packing element assembly, body 1 outside between interstage sleeve 6 and upper tapered sleeve 8 is provided with upper slips 10, body 1 outside between lower tapered sleeve 9 and lower contact 4 is provided with lower slips 11, the lower inside of upper slips 10 is inclined-plane wide at the top and narrow at the bottom, the upper outside of upper tapered sleeve 8 is up-narrow and down-wide inclined-plane, the inner side, lower end of upper slips 10 is pressed on the upper outside face of tapered sleeve 8, the upper inner of lower slips 11 is up-narrow and down-wide inclined-plane, the lower outside of lower tapered sleeve 9 is inclined-plane wide at the top and narrow at the bottom, the inner side, upper end of lower slips 11 is pressed on the lower outside face of lower tapered sleeve 9, be installed with pawl cover 12 in the upper outside of body 1, body 1 outside between pawl cover 12 and interstage sleeve 6 is fixedly connected with floating seal cover 14 by the 3rd shear pin 13, between pawl cover 12, body 1, floating seal cover 14 and cylinder sleeve 3, form the first annular seal space 15, on body 1, have the inlet opening 16 being connected with the first annular seal space 15 of at least one.
can according to actual needs, above-mentioned hanging packer device be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, pawl cartridge comprises shear pin cylinder 17 and two-way pawl cylinder 18; The outside, lower end of the upper inner of shear pin cylinder 17 and top connection 2 is fixed together by the first shear pin 5, and the inner side, upper end of shear pin cylinder 17 lower outsides and cylinder sleeve 3 is fixedly installed togather; Body 1 outside between pawl cover 12 and top connection 2 is distributed with crown the first outer latch down vertically, be distributed with crown the first interior pawl upward in the inner side of two-way pawl cylinder 18, the upper outside of the inner side of two-way pawl cylinder 18 and body 1 meshes together by the first outer latch and the first interior pawl; Inner side, middle part at shear pin cylinder 17 is distributed with crown the second interior latch down, at the upper outside distribution crown of two-way pawl cylinder 18 the second outer pawl upward, the inner side, middle part of shear pin cylinder 17 and the upper outside of two-way pawl cylinder 18 mesh together by the second interior latch and the second outer pawl; Between shear pin cylinder 17, two-way pawl cylinder 18, body 1, pawl cover 12 and cylinder sleeve 3, form the second annular seal space 19, on cylinder sleeve 3, have the first relief hole 20 communicating with the second annular seal space 19 of at least one; Interstage sleeve 6 is sleeved on the outside, middle part of body 1, between floating seal cover 14, body 1, interstage sleeve 6 and cylinder sleeve 3, forms the 3rd annular seal space 21, has the second relief hole 22 being connected with the 3rd annular seal space 21 of at least one on cylinder sleeve 3.Like this, pawl cartridge plays non-return effect, can only be descending, and can not be up; The first relief hole 20 prevents that interstage sleeve 6, cylinder sleeve 3, shear pin cylinder 17 descending rear the second annular seal space 19 together with two-way pawl cylinder 18 from building the pressure; The second relief hole 22 prevents that floating seal from overlapping 14 descending rear the 3rd annular seal spaces 21 and building the pressure.
as shown in accompanying drawing 1,2, packing element assembly comprises upper outside retainer ring 23, upper interior retainer ring 24, upper packing element baffle ring 25, packing element 26, lower rubber cylinder baffle ring 27, lower interior retainer ring 28 and lower outside retainer ring 29; The fixing sulfuration of upper packing element baffle ring 25 is in the outside, upper end of packing element 26, body 1 outside between upper tapered sleeve 8 and upper packing element baffle ring 25 be set with successively from top to bottom upper outside retainer ring 23 and in retainer ring 24; The fixing sulfuration of lower rubber cylinder baffle ring 27 is in the outside, lower end of packing element 26, and body 1 outside between lower rubber cylinder baffle ring 27 and lower tapered sleeve 9 is set with lower interior retainer ring 28 and lower outside retainer ring 29 from top to bottom successively; There is support ring mounting groove inner side, middle part at packing element 26, and the outside of corresponding body 1 is fixed with support ring 30, and the fixing sulfuration of support ring 30 is in support ring mounting groove.Like this, upper outside retainer ring 23, upper interior retainer ring 24, upper packing element baffle ring 25, lower rubber cylinder baffle ring 27, lower interior retainer ring 28 and lower outside retainer ring 29 are convenient to better protection and extruding packing element 26.Upper outside retainer ring 23, upper interior retainer ring 24, lower interior retainer ring 28 and lower outside retainer ring 29 are split ring, upper outside retainer ring 23 and upper interior retainer ring 24 are agreed with and are installed together by step, and lower interior retainer ring 28 and lower outside retainer ring 29 are agreed with and are installed together by step.
as shown in accompanying drawing 1,2, at the flexible pawl 31 of lower end outer rim stationary distribution of pawl cover 12, be fixed with pawl platform 32 in the lower end of each elastic claw 31, the top of pawl platform 32 is up-narrow and down-wide inclined-plane, there is interior inclined-plane wide at the top and narrow at the bottom cylinder sleeve 3 inner sides of corresponding pawl platform 32 positions, upper end at floating seal cover 14 is fixed with top cylinder 33, and the upper outside of pawl platform 32 is pressed on by top cylinder 33 on the interior inclined-plane of cylinder sleeve 3; Be positioned at body 1 outside that pawl overlaps 12 above and belows and have respectively semi-ring mounting groove, the semi-ring 34 that pair of matched is closed is installed in each semi-ring mounting groove, there is rubber ring mounting groove in two semi-ring 34 outsides of matching along circumference, in rubber ring mounting groove, be installed with rubber ring 35 and the inner of two semi-rings 34 that match is pressed in corresponding semi-ring mounting groove, pawl cover 12 is installed between two pairs of semi-rings 34.Like this, pawl platform 32 is convenient to better cylinder sleeve 3 be played to axial limiting effect.
as shown in accompanying drawing 1,2, there are internal thread or internal thread on the top of top connection 2; There are internal thread or internal thread in the bottom of lower contact 4.Like this, be convenient to the installation and removal of top connection 2, lower contact 4.
as shown in accompanying drawing 1,2, between top connection 2 and body 1, be fixedly installed togather by screw thread, between lower contact 4 and body 1, be fixedly installed togather by screw thread, the inner side, lower end of the lower outside of two-way pawl cylinder 18 and shear pin cylinder 17 is fixedly installed togather by screw thread, shear pin cylinder 17 and and cylinder sleeve 3 be fixedly installed togather by screw thread, interstage sleeve 6 and cylinder sleeve 3 are fixedly installed togather by screw thread; Between top connection 2 and body 1, marking closely 36 by the anti-rotation of at least one is fixed together, shear pin cylinder 17 and and cylinder sleeve 3 between mark closely 36 by the anti-rotation of at least one and be fixed together, between lower contact 4 and body 1, mark closely 36 by the anti-rotation of at least one and be fixed together.Like this, be convenient to installation and removal by screw thread; Anti-rotation is marked closely 36 and is played better fixing and anti-rotation effect.
as shown in accompanying drawing 1,2, there are respectively mounting groove 37 and the outer mounting groove 38 of pawl cover in pawl cover in inner side and the outside of pawl cover 12, in pawl overlaps, the upper and lower of mounting groove 37 is separately installed with Sealing shield ring 39, and in pawl overlaps, the middle part of mounting groove 37 is provided with sealing ring 40; Outside pawl cover, the upper and lower of mounting groove 38 is separately installed with Sealing shield ring 39, and outside pawl cover, the middle part of mounting groove 38 is provided with sealing ring 40; The inner side of floating seal cover 14 and outside have respectively in floating seal cover mounting groove 41 and floating seal overlap outside mounting groove 42, in floating seal cover, the upper and lower of mounting groove 41 is separately installed with Sealing shield ring 39, and in floating seal cover, the middle part of mounting groove 41 is provided with sealing ring 40; Outside floating seal cover, the upper and lower of mounting groove 42 is separately installed with Sealing shield ring 39, and outside floating seal cover, the middle part of mounting groove 42 is provided with sealing ring 40; Between top connection 2 and body 1, sealing ring 40 is installed; Between lower contact 4 and body 1, sealing ring 40 is installed.Like this, sealing ring 40 is convenient to better play the effect of sealing.
above technical characterictic has formed most preferred embodiment of the present invention, 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.
the use procedure of the embodiment of the present invention: first pitching builds the pressure below inlet opening 16, liquid enters in the inner chamber of body 1, enter in the first annular seal space 15 by inlet opening 16, build the pressure the pressure in the first annular seal space 15 is increased, floating seal cover 14 the 3rd shear pins 13 that are connected with body 1 are cut off, it is 14 descending that liquid-driving floating seal in the first annular seal space 15 overlaps, and the top cylinder 33 that floating seal overlaps on 14 descending rear floating seals covers 14 departs from pawl platform 32, and the elastic claw 31 on pawl cover 12 shrinks, when floating seal cover 14 comes downwards to the upper surface of interstage sleeve 6, extruding interstage sleeve 6 is cut off the first shear pin 5 that shear pin cylinder 17 is connected with top connection 2, interstage sleeve 6, cylinder sleeve 3, shear pin cylinder 17 is descending together with two-way pawl cylinder 18, interstage sleeve 6 pushes upper slips 10, the upper tapered sleeve 8 of upper slips 10 extruding, the second shear pin 7 that tapered sleeve 8 is connected with body 1 is cut off, upper tapered sleeve 8 pushes packing element assembly and lower tapered sleeve 9, the second shear pin 7 that lower tapered sleeve 9 is connected with body 1 is cut off, thereby continuing extruding sets packing element 26 expansions, upper slips 10 and lower slips 11 are sat and are hung, reaching does not build the pressure do not sit hang set, build the pressure to sit smoothly and hang the object setting, avoid occurring that the situation that premature setting seat is hung occurs, make underground work safe and reliable, thereby guarantee effective enforcement of down-hole completion practice.
Claims (10)
1. a hanging packer device, is characterized in that comprising body, top connection and cylinder sleeve, outside, lower end at body is installed with lower contact, the lower inside of top connection and outside, the upper end of body are fixedly installed togather, outside, lower end in top connection is fixedly connected with pawl cartridge by the first shear pin, the lower outside of pawl cartridge and inner side, the upper end of cylinder sleeve are fixedly installed togather, inner side, lower end at cylinder sleeve is installed with interstage sleeve, be fixedly connected with tapered sleeve and lower tapered sleeve by the second shear pin interval respectively in the body outside between interstage sleeve and lower contact, body outside between upper tapered sleeve and lower tapered sleeve is set with packing element assembly, body outside between interstage sleeve and upper tapered sleeve is provided with upper slips, body outside between lower tapered sleeve and lower contact is provided with lower slips, the lower inside of upper slips is inclined-plane wide at the top and narrow at the bottom, the upper outside of upper tapered sleeve is up-narrow and down-wide inclined-plane, the inner side, lower end of upper slips is pressed on the upper outside face of tapered sleeve, the upper inner of lower slips is up-narrow and down-wide inclined-plane, the lower outside of lower tapered sleeve is inclined-plane wide at the top and narrow at the bottom, the inner side, upper end of lower slips is pressed on the lower outside face of lower tapered sleeve, be installed with pawl cover in the upper outside of body, body outside between pawl cover and interstage sleeve is fixedly connected with floating seal cover by the 3rd shear pin, between pawl cover, body, floating seal cover and cylinder sleeve, form the first annular seal space, on body, have the inlet opening being connected with the first annular seal space of at least one.
2. hanging packer device according to claim 1, is characterized in that pawl cartridge comprises shear pin cylinder and two-way pawl cylinder; The upper inner of shear pin cylinder and outside, the lower end of top connection are fixed together by the first shear pin, and the inner side, upper end of shear pin cylinder lower outside and cylinder sleeve is fixedly installed togather; Body outside between pawl cover and top connection is distributed with crown the first outer latch down vertically, be distributed with crown the first interior pawl upward in the inner side of two-way pawl cylinder, the inner side of two-way pawl cylinder and the upper outside of body mesh together by the first outer latch and the first interior pawl; Inner side, middle part at shear pin cylinder is distributed with crown the second interior latch down, at the upper outside distribution crown of two-way pawl cylinder the second outer pawl upward, the inner side, middle part of shear pin cylinder and the upper outside of two-way pawl cylinder mesh together by the second interior latch and the second outer pawl; Between shear pin cylinder, two-way pawl cylinder, body, pawl cover and cylinder sleeve, form the second annular seal space, on cylinder sleeve, have the first relief hole communicating with the second annular seal space of at least one; Interstage sleeve is sleeved on the outside, middle part of body, forms the 3rd annular seal space between floating seal cover, body, interstage sleeve and cylinder sleeve, has the second relief hole being connected with the 3rd annular seal space of at least one on cylinder sleeve.
3. hanging packer device according to claim 1 and 2, is characterized in that packing element assembly comprises upper outside retainer ring, upper interior retainer ring, upper packing element baffle ring, packing element, lower rubber cylinder baffle ring, lower interior retainer ring and lower outside retainer ring; The fixing sulfuration of upper packing element baffle ring is in the outside, upper end of packing element, the body outside between upper tapered sleeve and upper packing element baffle ring be set with successively from top to bottom upper outside retainer ring and in retainer ring; The fixing sulfuration of lower rubber cylinder baffle ring is in the outside, lower end of packing element, and the body outside between lower rubber cylinder baffle ring and lower tapered sleeve is set with lower interior retainer ring and lower outside retainer ring from top to bottom successively; There is support ring mounting groove inner side, middle part at packing element, and the outside of corresponding body is fixed with support ring, and the fixing sulfuration of support ring is in support ring mounting groove.
4. hanging packer device according to claim 1 and 2, it is characterized in that the flexible pawl of lower end outer rim stationary distribution of pawl cover, be fixed with pawl platform in the lower end of each elastic claw, the top of pawl platform is up-narrow and down-wide inclined-plane, there is interior inclined-plane wide at the top and narrow at the bottom the cylinder sleeve inner side of corresponding pawl platform position, upper end at floating seal cover is fixed with top cylinder, and the upper outside of pawl platform is pressed on by top cylinder on the interior inclined-plane of cylinder sleeve; There is respectively semi-ring mounting groove in the body outside that is positioned at pawl cover above and below, in each semi-ring mounting groove, the semi-ring that pair of matched is closed is installed, there is rubber ring mounting groove in the two semi-ring outsides of matching along circumference, in rubber ring mounting groove, be installed with rubber ring and the inner of two semi-rings that match is pressed in corresponding semi-ring mounting groove, pawl cover is installed between two pairs of semi-rings.
5. hanging packer device according to claim 3, it is characterized in that the flexible pawl of lower end outer rim stationary distribution of pawl cover, be fixed with pawl platform in the lower end of each elastic claw, the top of pawl platform is up-narrow and down-wide inclined-plane, there is interior inclined-plane wide at the top and narrow at the bottom the cylinder sleeve inner side of corresponding pawl platform position, upper end at floating seal cover is fixed with top cylinder, and the upper outside of pawl platform is pressed on by top cylinder on the interior inclined-plane of cylinder sleeve; There is respectively semi-ring mounting groove in the body outside that is positioned at pawl cover above and below, in each semi-ring mounting groove, the semi-ring that pair of matched is closed is installed, there is rubber ring mounting groove in the two semi-ring outsides of matching along circumference, in rubber ring mounting groove, be installed with rubber ring and the inner of two semi-rings that match is pressed in corresponding semi-ring mounting groove, pawl cover is installed between two pairs of semi-rings.
6. hanging packer device according to claim 1 and 2, is characterized in that internal thread or internal thread are arranged at the top of top connection; There are internal thread or internal thread in the bottom of lower contact.
7. according to the hanging packer device described in claim 3 or 4 or 5, it is characterized in that internal thread or internal thread are arranged at the top of top connection; There are internal thread or internal thread in the bottom of lower contact.
8. according to the hanging packer device described in claim 2 or 3 or 4 or 5 or 6, it is characterized in that being fixedly installed togather by screw thread between top connection and body, between lower contact and body, be fixedly installed togather by screw thread, the inner side, lower end of the lower outside of two-way pawl cylinder and shear pin cylinder is fixedly installed togather by screw thread, shear pin cylinder and and cylinder sleeve be fixedly installed togather by screw thread, interstage sleeve and cylinder sleeve are fixedly installed togather by screw thread; Between top connection and body, mark closely and be fixed together by the anti-rotation of at least one, shear pin cylinder and and cylinder sleeve between mark closely and be fixed together by the anti-rotation of at least one, between lower contact and body, mark closely and be fixed together by the anti-rotation of at least one.
9. hanging packer device according to claim 7, it is characterized in that being fixedly installed togather by screw thread between top connection and body, between lower contact and body, be fixedly installed togather by screw thread, the inner side, lower end of the lower outside of two-way pawl cylinder and shear pin cylinder is fixedly installed togather by screw thread, shear pin cylinder and and cylinder sleeve be fixedly installed togather by screw thread, interstage sleeve and cylinder sleeve are fixedly installed togather by screw thread; Between top connection and body, mark closely and be fixed together by the anti-rotation of at least one, shear pin cylinder and and cylinder sleeve between mark closely and be fixed together by the anti-rotation of at least one, between lower contact and body, mark closely and be fixed together by the anti-rotation of at least one.
10. according to the hanging packer device described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, there are respectively mounting groove and the outer mounting groove of pawl cover in pawl cover in the inner side and the outside that it is characterized in that pawl cover, in pawl cover, the upper and lower of mounting groove is separately installed with Sealing shield ring, and in pawl cover, the middle part of mounting groove is provided with sealing ring; Outside pawl cover, the upper and lower of mounting groove is separately installed with Sealing shield ring, and outside pawl cover, the middle part of mounting groove is provided with sealing ring; The inner side of floating seal cover and outside have respectively in floating seal cover mounting groove and floating seal overlap outside mounting groove, in floating seal cover, the upper and lower of mounting groove is separately installed with Sealing shield ring, and in floating seal cover, the middle part of mounting groove is provided with sealing ring; Outside floating seal cover, the upper and lower of mounting groove is separately installed with Sealing shield ring, and outside floating seal cover, the middle part of mounting groove is provided with sealing ring; Between top connection and body, sealing ring is installed; Between lower contact and body, sealing ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047571.0A CN103790547B (en) | 2014-02-11 | 2014-02-11 | hanging packer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047571.0A CN103790547B (en) | 2014-02-11 | 2014-02-11 | hanging packer device |
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| Publication Number | Publication Date |
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| CN103790547A true CN103790547A (en) | 2014-05-14 |
| CN103790547B CN103790547B (en) | 2016-06-22 |
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| CN201410047571.0A Active CN103790547B (en) | 2014-02-11 | 2014-02-11 | hanging packer device |
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| CN (1) | CN103790547B (en) |
Cited By (5)
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| CN109372464A (en) * | 2018-12-19 | 2019-02-22 | 中国石油大学(北京) | Packer |
| CN110578480A (en) * | 2019-09-24 | 2019-12-17 | 中国石油集团西部钻探工程有限公司 | Reliable hydraulic centralizer |
| CN110593778A (en) * | 2019-09-24 | 2019-12-20 | 中国石油集团西部钻探工程有限公司 | Self-opening hydraulic centralizer |
| CN110593802A (en) * | 2019-09-06 | 2019-12-20 | 中国石油集团西部钻探工程有限公司 | Metal sealing packing device |
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Effective date of registration: 20201106 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Research Institute, No. 326, South Central Road, Urumqi, the Xinjiang Uygur Autonomous Region Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |