CN203547648U - Double-hydraulic-cylinder packer device - Google Patents
Double-hydraulic-cylinder packer device Download PDFInfo
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- CN203547648U CN203547648U CN201320463188.4U CN201320463188U CN203547648U CN 203547648 U CN203547648 U CN 203547648U CN 201320463188 U CN201320463188 U CN 201320463188U CN 203547648 U CN203547648 U CN 203547648U
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Abstract
The utility model relates to the technical field of packer devices in the oil and gas field well-completion operation and provides a double-hydraulic-cylinder packer device. The double-hydraulic-cylinder packer device comprises a body, an upper cylinder sleeve, a double-cylinder sealing sleeve, a lower cylinder sleeve and a rubber barrel assembly. The upper cylinder sleeve is fixedly installed on the upper-portion outer wall of the body, a reverse tooth mechanism for preventing the descending upper cylinder sleeve from ascending is arranged on the upper cylinder sleeve, the double-cylinder sealing sleeve is installed in the middle outer wall of the body, a sealing sleeve outer ring table is fixed on the middle outer wall of the double-cylinder sealing sleeve, the lower end of the upper cylinder sleeve is fixedly installed with the upper-portion outer wall of the sealing sleeve outer ring table, and the lower cylinder sleeve is fixedly installed on the middle outer wall of the body. The double-hydraulic-cylinder packer device is reasonable and compact in structure and convenient to use, drives a setting seal through double ground pressure build-up hydraulic cylinders, can avoid mistaken setting and hanging in the in-well packing operation, enables underground operation to be safe and reliable and accordingly ensures effective implementation of underground well-completion operation.
Description
Technical field
the utility model relates to packing device technical field in oil gas field completion practice, is a kind of biliquid cylinder packing 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 packer to carry out the isolation between the interior annular space sealing of sleeve pipe and different reservoir, therefore, packer is requisite technological means in completion practice, the importance of packer has some idea of.At present, the packer that Oil Field is used, is mostly single fluid cylinder and sets, and scene occurred that single fluid cylinder mistake is sat and the severe phenomenon such as hangs, sets unsuccessfully; Meanwhile, in packer G.I.H process, there is packer premature setting, caused the phenomenons such as down-hole completion failure.
Summary of the invention
the utility model provides a kind of biliquid cylinder packing device, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem that existing packer easily occurs mistake seat extension, sets failure.
the technical solution of the utility model realizes by following measures: a kind of biliquid cylinder packing device, comprises body, upper cylinder sleeve, two public sealing shroud, lower cylinder sleeve and packing element assembly, in the external wall of upper portion of body, be installed with cylinder sleeve, at upper cylinder half, put to be provided with and prevent the descending rear up pawl mechanism of cylinder sleeve, two public sealing shrouds are installed on the outer wall of the middle part of body, on the middle part outer wall of two public sealing shrouds, be fixed with sealing shroud outer shroud platform, the external wall of upper portion of the lower end of upper cylinder sleeve and sealing shroud outer shroud platform is fixedly installed togather, on the outer wall of the middle part of body, be installed with lower cylinder sleeve, the bottom outer wall of the upper end of lower cylinder sleeve and sealing shroud outer shroud platform is fixedly installed togather, in the inside of lower cylinder sleeve, be installed with anti-error seat hang device, the lower end of lower cylinder sleeve is installed with packing element assembly.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned anti-error seat hang device comprises jaw cover, sealing shroud and positioning retainer ring, on the outer wall of the bottom of body, be installed with jaw cover, on body outer wall below jaw cover, be installed with positioning retainer ring, on the body outer wall of the top and bottom of positioning retainer ring, be installed with respectively can the back-up ring of stationary positioned back-up ring on snap ring under snap ring and back-up ring, on the body outer wall between jaw cover and positioning retainer ring, be installed with packing element assembly, on the bottom outer wall of jaw cover, be fixed with limited ring dais, on the inwall of lower cylinder sleeve, be fixed with lower cylinder collar platform, the lower inboard wall of cylinder liner of lower cylinder collar platform top and the bottom outer wall of sealing shroud outer shroud platform is fixedly installed togather and the lower surface of sealing shroud outer shroud platform and the upper surface of lower cylinder collar platform offset, the external wall of upper portion that the lower inboard wall of cylinder liner of lower cylinder collar platform below and jaw are overlapped is fixedly installed togather and the lower surface of lower cylinder sleeve and the upper surface of limited ring dais offset, two public sealing shrouds, lower cylinder collar platform, between jaw cover and body, form lower hydraulic pressure chamber, in the middle part of lower hydraulic pressure chamber, be installed with the sealing shroud that inner and outer wall fits tightly with body outer wall and lower cylinder collar platform inwall respectively, on the body outer wall of the top and bottom of sealing shroud, be installed with respectively snap ring and sealing shroud baffle ring on sealing shroud, on body outer wall on sealing shroud above snap ring, fixedly mount the limit baffle ring of restricted two public sealing shroud maximum downstream distances, the outside, lower end of sealing shroud is fixed with annular gland, on the body outer wall of corresponding gland bottom, there is annular stopper slot, the upper end edge of jaw cover is evenly distributed in claw bar, the upper end of claw bar is fixed with respectively the pawl head that external diameter is greater than claw bar external diameter, the inner and outer wall that pawl head is positioned at stopper slot and pawl head fits tightly with stopper slot bottom land and gland inwall respectively, on the body between sealing shroud baffle ring and pawl head, there is lower hydraulic pressure hole, on lower cylinder sleeve below two public sealing shrouds, there is pressure compensation opening.
above-mentioned packing element assembly comprises retainer ring, upper rubber tube, upper packing element baffle ring, rubber seal cylinder, lower rubber cylinder baffle ring, lower rubber tube and lower retainer ring, the outside, lower end of jaw cover is fixed with lower mounting flange, the outside, upper end of positioning retainer ring is fixed with mounting flange, the lower end of upper retainer ring and the upper end of upper rubber tube are fixedly installed togather, the upper end of the lower end of lower rubber tube and lower retainer ring is fixedly installed togather, the upper end of upper retainer ring is fixedly mounted in lower mounting flange, the lower end of lower retainer ring is fixedly mounted in mounting flange, on the body outer wall of upper rubber tube below, be installed with packing element baffle ring, on the body outer wall of lower rubber tube top, be installed with lower rubber cylinder baffle ring, in the outside, lower end of upper packing element baffle ring and the outside, upper end of lower rubber cylinder baffle ring, be all fixed with upper flange and lower flange, on the body outer wall between upper packing element baffle ring and lower rubber cylinder baffle ring, be installed with rubber seal cylinder, upper flange and lower flange compress the top and bottom of rubber seal cylinder respectively, on the inwall of the middle part of rubber seal cylinder, be fixed with sealing retainer ring.
the lower end of above-mentioned upper retainer ring and the upper end of upper rubber tube sulfide, and the upper end of the lower end of lower rubber tube and lower retainer ring sulfides.
above-mentioned pawl mechanism comprises pawl axle sleeve and pawl ring, in the external wall of upper portion of body, be installed with pawl axle sleeve, on the upper end outer wall of pawl axle sleeve and lower end outer wall, be fixed with respectively axle sleeve outer shroud platform and joint ring platform, on the body outer wall of the top and bottom of pawl axle sleeve, be installed with respectively on axle sleeve snap ring under snap ring and axle sleeve, hydraulic pressure hole on having on body under axle sleeve below snap ring, on body below upper hydraulic pressure hole, be set with two public sealing shrouds, on the inwall of upper cylinder sleeve, be fixed with cylinder collar platform, upper inboard wall of cylinder liner and the axle sleeve outer shroud platform of upper cylinder collar platform top are fixedly installed togather by shear pin, the upper inboard wall of cylinder liner of upper cylinder collar platform below is fixedly installed togather with the external wall of upper portion of sealing shroud outer shroud platform and the lower surface of upper cylinder collar platform offsets with the interior upper surface of encircling platform of sealing shroud, pawl axle sleeve, axle sleeve outer shroud platform, between upper cylinder sleeve and upper cylinder collar platform, form installation cavity, in installation cavity, be provided with and on inner and outer wall, all have pawl crown pawl ring upward, crown pawl down distributes on the upper inboard wall of cylinder liner of corresponding pawl ring, pawl on pawl ring outer wall and the pawl on upper inboard wall of cylinder liner mesh together, on the pawl sleeve lining between pawl ring and joint ring platform, be distributed with crown down and can with pawl ring inwall on the pawl that meshes together of pawl, pawl axle sleeve, upper cylinder collar platform, between two public sealing shrouds and body, form the upper hydraulic cavities being communicated with upper hydraulic pressure hole.
between above-mentioned pawl axle sleeve and inner body wall, be installed with sealing ring, between joint ring platform and upper cylinder collar platform, be installed with sealing ring, between two public sealing shrouds and upper cylinder collar platform, be installed with sealing ring, two public sealing shrouds and lower cylinder collar platform are installed with sealing ring, between two public sealing shrouds and body, be installed with sealing ring, between sealing shroud and body, be installed with sealing ring, between sealing shroud and lower cylinder sleeve, be installed with sealing ring, between jaw cover and lower cylinder sleeve, be installed with sealing ring, between jaw cover and body, be installed with sealing ring, between sealing retainer ring and body, be installed with sealing ring.
the lower inboard wall of cylinder liner of above-mentioned lower cylinder collar platform top and the bottom outer wall of sealing shroud outer shroud platform are fixedly installed togather by screw thread, the lower inboard wall of cylinder liner of lower cylinder collar platform below and the external wall of upper portion of jaw cover are fixedly installed togather by screw thread, the upper inboard wall of cylinder liner of upper cylinder collar platform below and the external wall of upper portion of sealing shroud outer shroud platform are fixedly installed togather by screw thread, upper end internal thread or the external screw thread of body, there are internal thread or external screw thread in the lower end of body.
the utility model reasonable and compact in structure, easy to use, by the ground biliquid cylinder that builds the pressure, drive the utility model to set, in entering well packing operation process, can guarantee to avoid occurring that the situation that mistake seat is hung occurs, make underground work safe and reliable, thereby guarantee effective enforcement of down-hole completion practice.
Accompanying drawing explanation
accompanying drawing 1 is looked half section structural representation for the first half master of the utility model most preferred embodiment.
accompanying drawing 2 is looked half section structural representation for the latter half master of the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is body, 2 is two public sealing shrouds, 3 is sealing shroud outer shroud platform, 4 is lower cylinder sleeve, 5 is jaw cover, 6 is sealing shroud, 7 is positioning retainer ring, 8 is snap ring on back-up ring, 9 is snap ring under back-up ring, 10 is limited ring dais, 11 is lower cylinder collar platform, 12 is lower hydraulic pressure chamber, 13 is snap ring on sealing shroud, 14 is sealing shroud baffle ring, 15 is limit baffle ring, 16 is gland, 17 is stopper slot, 18 is claw bar, 19 is pawl head, 20 is lower hydraulic pressure hole, 21 is pressure compensation opening, 22 is upper cylinder sleeve, 23 is pawl axle sleeve, 24 is sealing ring, 25 is axle sleeve outer shroud platform, 26 is joint ring platform, 27 is snap ring on axle sleeve, 28 is snap ring under axle sleeve, 29 is upper hydraulic pressure hole, 30 is upper cylinder collar platform, 31 is shear pin, 32 is installation cavity, 33 is pawl ring, 34 is upper retainer ring, 35 is upper rubber tube, 36 is upper packing element baffle ring, 37 is rubber seal cylinder, 38 is lower rubber cylinder baffle ring, 39 is lower rubber tube, 40 is lower retainer ring, 41 is lower mounting flange, 42 is upper mounting flange, 43 is upper flange, 44 is lower flange, 45 is sealing retainer ring.
The specific embodiment
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 1, 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 biliquid cylinder packing device comprises body 1, upper cylinder sleeve 22, two public sealing shroud, lower cylinder sleeve 4 and packing element assembly, in the external wall of upper portion of body 1, be installed with cylinder sleeve 22, on upper cylinder sleeve 22, be provided with and prevent the descending rear up pawl mechanism of cylinder sleeve 22, two public sealing shrouds 2 are installed on the outer wall of the middle part of body 1, on the middle part outer wall of two public sealing shrouds 2, be fixed with sealing shroud outer shroud platform 3, the external wall of upper portion of the lower end of upper cylinder sleeve 22 and sealing shroud outer shroud platform 3 is fixedly installed togather, on the outer wall of the middle part of body 1, be installed with lower cylinder sleeve 4, the bottom outer wall of the upper end of lower cylinder sleeve 4 and sealing shroud outer shroud platform 3 is fixedly installed togather, in the inside of lower cylinder sleeve 4, be installed with anti-error seat hang device, the lower end of lower cylinder sleeve 4 is installed with packing element assembly.Upper cylinder sleeve 22 and lower cylinder sleeve 4 form biliquid cylinder structure and effectively reliably set, pawl mechanism can avoid when upper cylinder sleeve 22 and lower cylinder sleeve 4 is up after descending causes packing to be lost efficacy, anti-error seat hang device effectively prevents by mistake setting of packer, guarantee to enter carrying out smoothly of well process at packer, packing element assembly is realized packing operation of the present utility model.
can according to actual needs, above-mentioned biliquid cylinder packing device be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, anti-error seat hang device comprises jaw cover 5, sealing shroud 6 and positioning retainer ring 7, on the outer wall of the bottom of body 1, be installed with jaw cover 5, on body 1 outer wall below jaw cover 5, be installed with positioning retainer ring 7, on body 1 outer wall of the top and bottom of positioning retainer ring 7, be installed with respectively can the back-up ring of stationary positioned back-up ring 7 on snap ring 9 under snap ring 8 and back-up ring, on body 1 outer wall between jaw cover 5 and positioning retainer ring 7, be installed with packing element assembly, on the bottom outer wall of jaw cover 5, be fixed with limited ring dais 10, on the inwall of lower cylinder sleeve 4, be fixed with lower cylinder collar platform 11, lower cylinder sleeve 4 inwalls of lower cylinder collar platform 11 tops and the bottom outer wall of sealing shroud outer shroud platform 3 is fixedly installed togather and the lower surface of sealing shroud outer shroud platform 3 and the upper surface of lower cylinder collar platform 11 offset, the external wall of upper portion of lower cylinder sleeve 4 inwalls of lower cylinder collar platform 11 belows and jaw cover 5 is fixedly installed togather and the lower surface of lower cylinder sleeve 4 and the upper surface of limited ring dais 10 offset, two public sealing shrouds 2, lower cylinder collar platform 11, between jaw cover 5 and body 1, form lower hydraulic pressure chamber 12, in the middle part of lower hydraulic pressure chamber 12, be installed with the sealing shroud 6 that inner and outer wall fits tightly with body 1 outer wall and lower cylinder collar platform 11 inwalls respectively, on the body outer wall of the top and bottom of sealing shroud 6, be installed with respectively snap ring 13 and sealing shroud baffle ring 14 on sealing shroud, on body 1 outer wall on sealing shroud above snap ring 13, fixedly mount the limit baffle ring 15 of restricted two public sealing shroud 2 maximum downstream distances, the outside, lower end of sealing shroud 6 is fixed with annular gland 16, on the body outer wall of corresponding gland 16 bottoms, there is annular stopper slot 17, the upper end edge of jaw cover 5 is evenly distributed in claw bar 18, the upper end of claw bar 18 is fixed with respectively the pawl head 19 that external diameter is greater than claw bar 18 external diameters, the inner and outer wall that pawl head 19 is positioned at stopper slot 17 and pawl head 19 fits tightly with stopper slot 17 bottom lands and gland 16 inwalls respectively, on the body 1 between sealing shroud baffle ring 14 and pawl head 19, there is lower hydraulic pressure hole 20, on lower cylinder sleeve 4 below two public sealing shrouds 2, there is pressure compensation opening 21.By lower hydraulic pressure hole 20, in the lower hydraulic pressure chamber 12 of sealing shroud 6 belows, inject after high-pressure fluid, under the effect of high-pressure fluid, jaw cover 5 drives lower cylinder sleeve 4 descending, and then promotion packing element assembly carries out packing operation, in descending process, because lower hydraulic pressure chamber 12 volumes of sealing shroud 6 tops constantly dwindle, cause pressure to increase, for avoiding occurring contingency, pressure compensation opening 21 just can play the effect of balance external and internal pressure; For fear of appearance, set by mistake, be provided with jaw cover 5 and sealing shroud 6, if in descending process, claw bar 18 is broken, and setting appears in explanation by mistake, if there is hole anomaly, suddenly carry while the situation such as suddenly putting, can effectively prevent the possibility that mistake seat is hung, make into well more safe and reliable.
as shown in accompanying drawing 1,2, packing element assembly comprises retainer ring 34, upper rubber tube 35, upper packing element baffle ring 36, rubber seal cylinder 37, lower rubber cylinder baffle ring 38, lower rubber tube 39 and lower retainer ring 40, the outside, lower end of jaw cover 5 is fixed with lower mounting flange 41, the outside, upper end of positioning retainer ring 7 is fixed with mounting flange 42, the upper end of the lower end of upper retainer ring 34 and upper rubber tube 35 is fixedly installed togather, the upper end of the lower end of lower rubber tube 39 and lower retainer ring 40 is fixedly installed togather, the upper end of upper retainer ring 34 is fixedly mounted in lower mounting flange 41, the lower end of lower retainer ring 40 is fixedly mounted in mounting flange 42, on body 1 outer wall of upper rubber tube 35 belows, be installed with packing element baffle ring 36, on body 1 outer wall of lower rubber tube 39 tops, be installed with lower rubber cylinder baffle ring 38, in the outside, lower end of upper packing element baffle ring 36 and the outside, upper end of lower rubber cylinder baffle ring 38, be all fixed with upper flange 43 and lower flange 44, on body 1 outer wall between upper packing element baffle ring 36 and lower rubber cylinder baffle ring 38, be installed with rubber seal cylinder 37, upper flange 43 and lower flange 44 compress the top and bottom of rubber seal cylinder 37 respectively, on the inwall of the middle part of rubber seal cylinder 37, be fixed with sealing retainer ring 45.In the descending process of lower cylinder sleeve 4, upper retainer ring 34 is subject to downward active force and then power is passed to upper rubber tube 35 and upper packing element baffle ring 36, and now, rubber seal cylinder 37, under the squeezing action of downward power, slowly expands and realizes downhole packing.
as shown in accompanying drawing 1,2, the upper end of the lower end of upper retainer ring 34 and upper rubber tube 35 sulfides, and the upper end of the lower end of lower rubber tube 39 and lower retainer ring 40 sulfides.Sulfide the better transmission of realizable force, guarantee carrying out smoothly of packing operation.
as shown in accompanying drawing 1,2, pawl mechanism comprises pawl axle sleeve 23 and pawl ring 33, in the external wall of upper portion of body 1, be installed with pawl axle sleeve 23, on the upper end outer wall of pawl axle sleeve 23 and lower end outer wall, be fixed with respectively axle sleeve outer shroud platform 25 and joint ring platform 26, on body 1 outer wall of the top and bottom of pawl axle sleeve 23, be installed with respectively on axle sleeve snap ring 28 under snap ring 27 and axle sleeve, hydraulic pressure hole 29 on having on body 1 under axle sleeve below snap ring 28, on body 1 below upper hydraulic pressure hole 29, be set with two public sealing shrouds 2, on the inwall of upper cylinder sleeve 22, be fixed with cylinder collar platform 30, upper cylinder sleeve 22 inwalls and the axle sleeve outer shroud platform 25 of upper cylinder collar platform 30 tops are fixedly installed togather by shear pin 31, upper cylinder sleeve 22 inwalls of upper cylinder collar platform 30 belows and the external wall of upper portion of sealing shroud outer shroud platform 3 is fixedly installed togather and the lower surface of upper cylinder collar platform 30 and sealing shroud in the upper surface of ring platform 3 offset, pawl axle sleeve 23, axle sleeve outer shroud platform 25, between upper cylinder sleeve 22 and upper cylinder collar platform 30, form installation cavity 32, in installation cavity 32, be provided with and on inner and outer wall, all have pawl crown pawl ring 33 upward, crown pawl down distributes on upper cylinder sleeve 22 inwalls of corresponding pawl ring 33, pawl on pawl on pawl ring 33 outer walls and upper cylinder sleeve 22 inwalls meshes together, on pawl axle sleeve 23 inwalls between pawl ring 33 and joint ring platform 26, be distributed with crown down and can with pawl ring 33 inwalls on the pawl that meshes together of pawl, pawl axle sleeve 23, upper cylinder collar platform 30, between two public sealing shrouds 2 and body 1, form the upper hydraulic cavities 34 being communicated with upper hydraulic pressure hole 29.The setting of pawl ring 33 is in order to facilitate installation of the present utility model, when upwards injecting after high-pressure fluid in hydraulic cavities 34 by upper hydraulic pressure hole 29, under the effect of high-pressure fluid, two public sealing shrouds 2 are descending, and then the upper cylinder sleeve 22 of drive is descending, the lower cylinder sleeve 4 of promotion is descending, guarantee carrying out smoothly of packing operation, after rubber seal cylinder 37 has expanded, pawl on pawl on pawl ring 33 inwalls and pawl axle sleeve 23 outer walls meshes together firmly, avoid upper cylinder sleeve 22 and the up possibility of lower cylinder sleeve 4, guaranteed to set the reliability of packing.
as accompanying drawing 1, shown in 2, between pawl axle sleeve 23 and body 1 inwall, be installed with sealing ring 24 and form static seal, between joint ring platform 26 and upper cylinder collar platform 30, be installed with sealing ring 24 and form movable sealing, between two public sealing shrouds 2 and upper cylinder collar platform 30, be installed with sealing ring 24 and form static seal, two public sealing shrouds 2 are installed with sealing ring 24 with lower cylinder collar platform 11 and form static seal, between two public sealing shrouds 2 and body 1, be installed with sealing ring 24 and form movable sealing, between sealing shroud 6 and body 1, be installed with sealing ring 24 and form static seal, between sealing shroud 64 and lower cylinder sleeve, be installed with sealing ring 24 and form movable sealing, between jaw cover 5 and lower cylinder sleeve 4, be installed with sealing ring 24 and form static seal, between jaw cover 5 and body 1, be installed with sealing ring 24 and form movable sealing, between sealing retainer ring 45 and body 1, be installed with sealing ring 24 and form static seal.
as shown in accompanying drawing 1,2, lower cylinder sleeve 4 inwalls of lower cylinder collar platform 11 tops and the bottom outer wall of sealing shroud outer shroud platform 3 are fixedly installed togather by screw thread, the external wall of upper portion of lower cylinder sleeve 4 inwalls of lower cylinder collar platform 11 belows and jaw cover 5 is fixedly installed togather by screw thread, upper cylinder sleeve 22 inwalls of upper cylinder collar platform 30 belows and the external wall of upper portion of sealing shroud outer shroud platform 3 are fixedly installed togather by screw thread, upper end internal thread or the external screw thread of body 1, there are internal thread or external screw thread in the lower end of body 1.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 (11)
1. a biliquid cylinder packing device, is characterized in that comprising body, upper cylinder sleeve, two public sealing shroud, lower cylinder sleeve and packing element assembly, in the external wall of upper portion of body, be installed with cylinder sleeve, at upper cylinder half, put to be provided with and prevent the descending rear up pawl mechanism of cylinder sleeve, two public sealing shrouds are installed on the outer wall of the middle part of body, on the middle part outer wall of two public sealing shrouds, be fixed with sealing shroud outer shroud platform, the external wall of upper portion of the lower end of upper cylinder sleeve and sealing shroud outer shroud platform is fixedly installed togather, on the outer wall of the middle part of body, be installed with lower cylinder sleeve, the bottom outer wall of the upper end of lower cylinder sleeve and sealing shroud outer shroud platform is fixedly installed togather, in the inside of lower cylinder sleeve, be installed with anti-error seat hang device, the lower end of lower cylinder sleeve is installed with packing element assembly.
2. biliquid cylinder packing device according to claim 1, is characterized in that anti-error seat hang device comprises jaw cover, sealing shroud and positioning retainer ring, on the outer wall of the bottom of body, be installed with jaw cover, on body outer wall below jaw cover, be installed with positioning retainer ring, on the body outer wall of the top and bottom of positioning retainer ring, be installed with respectively can the back-up ring of stationary positioned back-up ring on snap ring under snap ring and back-up ring, on the body outer wall between jaw cover and positioning retainer ring, be installed with packing element assembly, on the bottom outer wall of jaw cover, be fixed with limited ring dais, on the inwall of lower cylinder sleeve, be fixed with lower cylinder collar platform, the lower inboard wall of cylinder liner of lower cylinder collar platform top and the bottom outer wall of sealing shroud outer shroud platform is fixedly installed togather and the lower surface of sealing shroud outer shroud platform and the upper surface of lower cylinder collar platform offset, the external wall of upper portion that the lower inboard wall of cylinder liner of lower cylinder collar platform below and jaw are overlapped is fixedly installed togather and the lower surface of lower cylinder sleeve and the upper surface of limited ring dais offset, two public sealing shrouds, lower cylinder collar platform, between jaw cover and body, form lower hydraulic pressure chamber, in the middle part of lower hydraulic pressure chamber, be installed with the sealing shroud that inner and outer wall fits tightly with body outer wall and lower cylinder collar platform inwall respectively, on the body outer wall of the top and bottom of sealing shroud, be installed with respectively snap ring and sealing shroud baffle ring on sealing shroud, on body outer wall on sealing shroud above snap ring, fixedly mount the limit baffle ring of restricted two public sealing shroud maximum downstream distances, the outside, lower end of sealing shroud is fixed with annular gland, on the body outer wall of corresponding gland bottom, there is annular stopper slot, the upper end edge of jaw cover is evenly distributed in claw bar, the upper end of claw bar is fixed with respectively the pawl head that external diameter is greater than claw bar external diameter, the inner and outer wall that pawl head is positioned at stopper slot and pawl head fits tightly with stopper slot bottom land and gland inwall respectively, on the body between sealing shroud baffle ring and pawl head, there is lower hydraulic pressure hole, on lower cylinder sleeve below two public sealing shrouds, there is pressure compensation opening.
3. biliquid cylinder packing device according to claim 2, is characterized in that packing element assembly comprises retainer ring, upper rubber tube, upper packing element baffle ring, rubber seal cylinder, lower rubber cylinder baffle ring, lower rubber tube and lower retainer ring, the outside, lower end of jaw cover is fixed with lower mounting flange, the outside, upper end of positioning retainer ring is fixed with mounting flange, the lower end of upper retainer ring and the upper end of upper rubber tube are fixedly installed togather, the upper end of the lower end of lower rubber tube and lower retainer ring is fixedly installed togather, the upper end of upper retainer ring is fixedly mounted in lower mounting flange, the lower end of lower retainer ring is fixedly mounted in mounting flange, on the body outer wall of upper rubber tube below, be installed with packing element baffle ring, on the body outer wall of lower rubber tube top, be installed with lower rubber cylinder baffle ring, in the outside, lower end of upper packing element baffle ring and the outside, upper end of lower rubber cylinder baffle ring, be all fixed with upper flange and lower flange, on the body outer wall between upper packing element baffle ring and lower rubber cylinder baffle ring, be installed with rubber seal cylinder, upper flange and lower flange compress the top and bottom of rubber seal cylinder respectively, on the inwall of the middle part of rubber seal cylinder, be fixed with sealing retainer ring.
4. biliquid cylinder packing device according to claim 3, is characterized in that the lower end of retainer ring and the upper end of upper rubber tube sulfide, and the upper end of the lower end of lower rubber tube and lower retainer ring sulfides.
5. biliquid cylinder packing device according to claim 1, is characterized in that pawl mechanism comprises pawl axle sleeve and pawl ring, in the external wall of upper portion of body, be installed with pawl axle sleeve, on the upper end outer wall of pawl axle sleeve and lower end outer wall, be fixed with respectively axle sleeve outer shroud platform and joint ring platform, on the body outer wall of the top and bottom of pawl axle sleeve, be installed with respectively on axle sleeve snap ring under snap ring and axle sleeve, hydraulic pressure hole on having on body under axle sleeve below snap ring, on body below upper hydraulic pressure hole, be set with two public sealing shrouds, on the inwall of upper cylinder sleeve, be fixed with cylinder collar platform, upper inboard wall of cylinder liner and the axle sleeve outer shroud platform of upper cylinder collar platform top are fixedly installed togather by shear pin, the upper inboard wall of cylinder liner of upper cylinder collar platform below is fixedly installed togather with the external wall of upper portion of sealing shroud outer shroud platform and the lower surface of upper cylinder collar platform offsets with the interior upper surface of encircling platform of sealing shroud, pawl axle sleeve, axle sleeve outer shroud platform, between upper cylinder sleeve and upper cylinder collar platform, form installation cavity, in installation cavity, be provided with and on inner and outer wall, all have pawl crown pawl ring upward, crown pawl down distributes on the upper inboard wall of cylinder liner of corresponding pawl ring, pawl on pawl ring outer wall and the pawl on upper inboard wall of cylinder liner mesh together, on the pawl sleeve lining between pawl ring and joint ring platform, be distributed with crown down and can with pawl ring inwall on the pawl that meshes together of pawl, pawl axle sleeve, upper cylinder collar platform, between two public sealing shrouds and body, form the upper hydraulic cavities being communicated with upper hydraulic pressure hole.
6. biliquid cylinder packing device according to claim 2, is characterized in that pawl mechanism comprises pawl axle sleeve and pawl ring, in the external wall of upper portion of body, be installed with pawl axle sleeve, on the upper end outer wall of pawl axle sleeve and lower end outer wall, be fixed with respectively axle sleeve outer shroud platform and joint ring platform, on the body outer wall of the top and bottom of pawl axle sleeve, be installed with respectively on axle sleeve snap ring under snap ring and axle sleeve, hydraulic pressure hole on having on body under axle sleeve below snap ring, on body below upper hydraulic pressure hole, be set with two public sealing shrouds, on the inwall of upper cylinder sleeve, be fixed with cylinder collar platform, upper inboard wall of cylinder liner and the axle sleeve outer shroud platform of upper cylinder collar platform top are fixedly installed togather by shear pin, the upper inboard wall of cylinder liner of upper cylinder collar platform below is fixedly installed togather with the external wall of upper portion of sealing shroud outer shroud platform and the lower surface of upper cylinder collar platform offsets with the interior upper surface of encircling platform of sealing shroud, pawl axle sleeve, axle sleeve outer shroud platform, between upper cylinder sleeve and upper cylinder collar platform, form installation cavity, in installation cavity, be provided with and on inner and outer wall, all have pawl crown pawl ring upward, crown pawl down distributes on the upper inboard wall of cylinder liner of corresponding pawl ring, pawl on pawl ring outer wall and the pawl on upper inboard wall of cylinder liner mesh together, on the pawl sleeve lining between pawl ring and joint ring platform, be distributed with crown down and can with pawl ring inwall on the pawl that meshes together of pawl, pawl axle sleeve, upper cylinder collar platform, between two public sealing shrouds and body, form the upper hydraulic cavities being communicated with upper hydraulic pressure hole.
7. biliquid cylinder packing device according to claim 3, is characterized in that pawl mechanism comprises pawl axle sleeve and pawl ring, in the external wall of upper portion of body, be installed with pawl axle sleeve, on the upper end outer wall of pawl axle sleeve and lower end outer wall, be fixed with respectively axle sleeve outer shroud platform and joint ring platform, on the body outer wall of the top and bottom of pawl axle sleeve, be installed with respectively on axle sleeve snap ring under snap ring and axle sleeve, hydraulic pressure hole on having on body under axle sleeve below snap ring, on body below upper hydraulic pressure hole, be set with two public sealing shrouds, on the inwall of upper cylinder sleeve, be fixed with cylinder collar platform, upper inboard wall of cylinder liner and the axle sleeve outer shroud platform of upper cylinder collar platform top are fixedly installed togather by shear pin, the upper inboard wall of cylinder liner of upper cylinder collar platform below is fixedly installed togather with the external wall of upper portion of sealing shroud outer shroud platform and the lower surface of upper cylinder collar platform offsets with the interior upper surface of encircling platform of sealing shroud, pawl axle sleeve, axle sleeve outer shroud platform, between upper cylinder sleeve and upper cylinder collar platform, form installation cavity, in installation cavity, be provided with and on inner and outer wall, all have pawl crown pawl ring upward, crown pawl down distributes on the upper inboard wall of cylinder liner of corresponding pawl ring, pawl on pawl ring outer wall and the pawl on upper inboard wall of cylinder liner mesh together, on the pawl sleeve lining between pawl ring and joint ring platform, be distributed with crown down and can with pawl ring inwall on the pawl that meshes together of pawl, pawl axle sleeve, upper cylinder collar platform, between two public sealing shrouds and body, form the upper hydraulic cavities being communicated with upper hydraulic pressure hole.
8. biliquid cylinder packing device according to claim 4, is characterized in that pawl mechanism comprises pawl axle sleeve and pawl ring, in the external wall of upper portion of body, be installed with pawl axle sleeve, on the upper end outer wall of pawl axle sleeve and lower end outer wall, be fixed with respectively axle sleeve outer shroud platform and joint ring platform, on the body outer wall of the top and bottom of pawl axle sleeve, be installed with respectively on axle sleeve snap ring under snap ring and axle sleeve, hydraulic pressure hole on having on body under axle sleeve below snap ring, on body below upper hydraulic pressure hole, be set with two public sealing shrouds, on the inwall of upper cylinder sleeve, be fixed with cylinder collar platform, upper inboard wall of cylinder liner and the axle sleeve outer shroud platform of upper cylinder collar platform top are fixedly installed togather by shear pin, the upper inboard wall of cylinder liner of upper cylinder collar platform below is fixedly installed togather with the external wall of upper portion of sealing shroud outer shroud platform and the lower surface of upper cylinder collar platform offsets with the interior upper surface of encircling platform of sealing shroud, pawl axle sleeve, axle sleeve outer shroud platform, between upper cylinder sleeve and upper cylinder collar platform, form installation cavity, in installation cavity, be provided with and on inner and outer wall, all have pawl crown pawl ring upward, crown pawl down distributes on the upper inboard wall of cylinder liner of corresponding pawl ring, pawl on pawl ring outer wall and the pawl on upper inboard wall of cylinder liner mesh together, on the pawl sleeve lining between pawl ring and joint ring platform, be distributed with crown down and can with pawl ring inwall on the pawl that meshes together of pawl, pawl axle sleeve, upper cylinder collar platform, between two public sealing shrouds and body, form the upper hydraulic cavities being communicated with upper hydraulic pressure hole.
9. according to the biliquid cylinder packing device described in claim 7 or 8, it is characterized in that being installed with sealing ring between pawl axle sleeve and inner body wall, between joint ring platform and upper cylinder collar platform, be installed with sealing ring, between two public sealing shrouds and upper cylinder collar platform, be installed with sealing ring, two public sealing shrouds and lower cylinder collar platform are installed with sealing ring, between two public sealing shrouds and body, be installed with sealing ring, between sealing shroud and body, be installed with sealing ring, between sealing shroud and lower cylinder sleeve, be installed with sealing ring, between jaw cover and lower cylinder sleeve, be installed with sealing ring, between jaw cover and body, be installed with sealing ring, between sealing retainer ring and body, be installed with sealing ring.
10. according to the biliquid cylinder packing device described in claim 7 or 8, it is characterized in that the lower inboard wall of cylinder liner of lower cylinder collar platform top and the bottom outer wall of sealing shroud outer shroud platform are fixedly installed togather by screw thread, the lower inboard wall of cylinder liner of lower cylinder collar platform below and the external wall of upper portion of jaw cover are fixedly installed togather by screw thread, the upper inboard wall of cylinder liner of upper cylinder collar platform below and the external wall of upper portion of sealing shroud outer shroud platform are fixedly installed togather by screw thread, upper end internal thread or the external screw thread of body, there are internal thread or external screw thread in the lower end of body.
11. biliquid cylinder packing devices according to claim 9, it is characterized in that the lower inboard wall of cylinder liner of lower cylinder collar platform top and the bottom outer wall of sealing shroud outer shroud platform are fixedly installed togather by screw thread, the lower inboard wall of cylinder liner of lower cylinder collar platform below and the external wall of upper portion of jaw cover are fixedly installed togather by screw thread, the upper inboard wall of cylinder liner of upper cylinder collar platform below and the external wall of upper portion of sealing shroud outer shroud platform are fixedly installed togather by screw thread, upper end internal thread or the external screw thread of body, there are internal thread or external screw thread in the lower end of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463188.4U CN203547648U (en) | 2013-07-31 | 2013-07-31 | Double-hydraulic-cylinder packer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463188.4U CN203547648U (en) | 2013-07-31 | 2013-07-31 | Double-hydraulic-cylinder packer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547648U true CN203547648U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320463188.4U Withdrawn - After Issue CN203547648U (en) | 2013-07-31 | 2013-07-31 | Double-hydraulic-cylinder packer device |
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| Country | Link |
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| CN (1) | CN203547648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382831A (en) * | 2013-07-31 | 2013-11-06 | 中国石油集团西部钻探工程有限公司 | Double-hydraulic-cylinder packing-off device |
-
2013
- 2013-07-31 CN CN201320463188.4U patent/CN203547648U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382831A (en) * | 2013-07-31 | 2013-11-06 | 中国石油集团西部钻探工程有限公司 | Double-hydraulic-cylinder packing-off device |
| CN103382831B (en) * | 2013-07-31 | 2016-06-01 | 中国石油集团西部钻探工程有限公司 | Double-hydraulic-cylpacking-off packing-off device |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20160601 |
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