CN110905436A - Lifting type lubricator device - Google Patents
Lifting type lubricator device Download PDFInfo
- Publication number
- CN110905436A CN110905436A CN201911346200.1A CN201911346200A CN110905436A CN 110905436 A CN110905436 A CN 110905436A CN 201911346200 A CN201911346200 A CN 201911346200A CN 110905436 A CN110905436 A CN 110905436A
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- pipe
- lower movable
- movable pipe
- flange
- lower flange
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- 230000001012 protector Effects 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000008093 supporting effect Effects 0.000 claims description 31
- 238000005299 abrasion Methods 0.000 claims description 12
- 230000003028 elevating effect Effects 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides a lift type lubricator device, comprising: the upper fixing pipe is sleeved outside the oil pipe above the slip centralizing protector and is fixedly connected with an upper flange sleeved outside the oil pipe; the lower movable pipe is sleeved on the outer side of the upper fixed pipe and can axially move along the upper fixed pipe, the lower movable pipe can be in sealing fit with a lower flange sleeved on the outer side of the oil pipe, and when the lower movable pipe is in sealing fit with the lower flange, the slip centralizing protector is positioned in an inner cavity of the lower movable pipe; the upper fixing pipe and the lower movable pipe are located between the upper flange and the lower flange, and when the lower movable pipe moves towards the direction far away from the lower flange, the slip centralizing protector can be completely exposed out of the inner cavity. The invention has simple structure, convenient assembly and disassembly and high safety.
Description
Technical Field
The invention particularly relates to a lifting type lubricator device.
Background
A fracturing injection head, a valve and the like are arranged on the lubricator, the height of the lubricator is more than twenty meters, the total weight of the lubricator is about 20 tons, a continuous oil pipe is arranged in the middle of the lubricator and penetrates through a rock stratum with the depth of thousands of meters, and fracturing liquid is pressed below the lubricator; the inside high pressure that bears of coiled tubing, so coiled tubing is under the condition of bearing pressure, and oil pipe excircle can produce collision, friction with the lubricator inner wall, leads to coiled tubing to break, takes place the incident, takes place for this incident takes place, installs a slips on coiled tubing about every 20 meters at present and rights the protector, just so can avoid the collision of coiled tubing and lubricator. Because fracturing equipment has twenty meters height in total, it is all troublesome to carry out the dismouting to the slips righting protector at such height, and is unsafe moreover, consequently urgently needs a device that can make things convenient for the dismouting of slips righting protector.
Disclosure of Invention
In order to solve the technical problems, the invention provides a lifting type lubricator device which is simple in structure, convenient to disassemble and assemble and high in safety.
The invention adopts the following technical scheme:
an elevating lubricator device, comprising:
the upper fixing pipe is sleeved outside the oil pipe above the slip centralizing protector and is fixedly connected with an upper flange sleeved outside the oil pipe;
the lower movable pipe is sleeved on the outer side of the upper fixed pipe and can axially move along the upper fixed pipe, the lower movable pipe can be in sealing fit with a lower flange sleeved on the outer side of the oil pipe, and when the lower movable pipe is in sealing fit with the lower flange, the slip centralizing protector is positioned in an inner cavity of the lower movable pipe;
the upper fixing pipe and the lower movable pipe are located between the upper flange and the lower flange, and when the lower movable pipe moves towards the direction far away from the lower flange, the slip centralizing protector can be completely exposed out of the inner cavity.
Preferably, the upper flange and the lower flange are fixedly connected through an outer support column, a support plate which can only rotate along the circumferential direction of the outer support column is sleeved outside the outer support column, the support plate can rotate to the moving path of the lower movable pipe, and the lower movable pipe can be supported by the support plate after moving towards the direction far away from the lower flange; when the lower movable pipe is supported by the supporting plate, the slip centralizing protector is completely exposed out of the inner cavity.
Preferably, the support plate is substantially rectangular, one end of the support plate in the length direction is sleeved outside the outer support column, and the other end of the support plate in the length direction can rotate to the moving path of the lower movable pipe.
Preferably, the bottom of the lower movable pipe is provided with a connecting ring with a diameter larger than that of the lower movable pipe body, the connecting ring is axially provided with a mounting hole, the lower flange is provided with a locking hole corresponding to the mounting hole, and a bolt can penetrate through the mounting hole and the locking hole to fasten the lower movable pipe on the lower flange;
the support plate is also provided with a fastening hole corresponding to the mounting hole, and when the support plate rotates to the moving path of the lower movable pipe, the fastening hole and the mounting hole are on the same axis.
Preferably, the inner support column comprises a positioning column, a stop ring and a stud, the stop ring is positioned between the positioning column and the stud, and the diameter of the stop ring is larger than that of the locking hole; when the lower movable pipe is supported by the supporting plate, the positioning column can stretch into the locking hole, the screw rod can penetrate through the fastening hole and the mounting hole, and the screw rod is further connected with a nut used for limiting the position of the supporting plate in a threaded mode.
Preferably, the bottom of the upper fixed pipe is provided with a sealing ring with the diameter larger than that of the upper fixed pipe body, the diameter of the sealing ring is matched with the inner diameter of the lower movable pipe, and a sealing ring in sealing contact with the inner wall of the lower movable pipe is arranged on the circumferential surface of the sealing ring;
the top of the lower movable pipe is provided with a sliding hole which is matched with the diameter of the upper fixed pipe body and is communicated with the inner cavity, and the lower movable pipe is sleeved on the outer side of the upper fixed pipe through the sliding hole and moves along the axial direction.
Preferably, the top of the lower movable pipe is further provided with a lifting lug, and a lifting hole is formed in the position, opposite to the lifting lug, of the upper flange.
Preferably, the connecting ring and the lower flange are respectively provided with corresponding annular grooves, a backing ring is arranged between the annular grooves, and when the lower movable pipe is fastened on the lower flange through a bolt, the backing ring seals a gap between the connecting ring and the lower flange.
Preferably, the oil pipe sealing device further comprises a lower flange cover plate, the lower flange cover plate can be sleeved on the outer side of the oil pipe and plugs a central hole of the lower flange, and the lower flange cover plate is composed of two semicircular discs.
Preferably, the central hole department of sealing ring and lower flange is equipped with corresponding, the diameter is greater than the chamber that holds that the slips rights the protector respectively, holds and is equipped with between the chamber and cup joints in the slips rights the protector outside, detachable abrasionproof sleeve pipe, and the abrasionproof sleeve pipe is formed by two semicircle pipe concatenations, the sheathed tube top of abrasionproof is equipped with and is used for spacing stop screw.
The invention has the beneficial effects that: the lower movable pipe can move along the axial direction of the upper fixed pipe to the direction of the lower flange until the lower movable pipe is in sealing fit with the lower flange, and the slip centralizing protector is positioned in the inner cavity of the lower movable pipe at the moment and can protect the slip centralizing protector; when the axial of lower movable tube edge last fixed pipe was removed towards the direction of keeping away from lower flange, can make the slips right the protector and expose outside the inner chamber completely, can carry out the dismouting that the protector was right to the slips this moment, through the lubricator of over-and-under type, the dismouting that carries out the protector is right to the slips that can be very convenient improves the security.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the slip centralizing protector according to the present invention;
FIG. 3 is a schematic structural view of the slip centralizing protector of the present invention during disassembly and assembly;
FIG. 4 is a schematic structural view of an upper mounting tube according to the present invention;
FIG. 5 is a schematic view of the construction of a lower movable tube according to the present invention;
FIG. 6 is a schematic structural view of an inner support column according to the present invention;
FIG. 7 is a schematic view of the structure of the support plate of the present invention;
FIG. 8 is a schematic structural view of an upper flange of the present invention;
FIG. 9 is a schematic structural view of a lower flange of the present invention;
FIG. 10 is a schematic view of the structure of the semicircular disk of the present invention;
FIG. 11 is a schematic structural view of the lower flange cover plate of the present invention after being spliced;
FIG. 12 is a schematic cross-sectional view of the wear sleeve of the present invention;
fig. 13 is a schematic structural view of the spliced two semicircular pipes.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 13, an elevating lubricator device of the present embodiment includes an upper flange 10, a lower flange 20, an upper fixed pipe 30, and a lower movable pipe 40;
the upper fixing pipe 30 is sleeved on the outer side of the oil pipe 100 above the slip centralizing protector 300 through an upper fixing pipe center hole 35, the upper flange 10 is sleeved on the outer side of the oil pipe 100 above the upper fixing pipe 30 through an upper flange center hole 11 and is fixedly connected with the lubricator 400 on the outer side of the oil pipe 100, and the upper fixing pipe 30 is fixedly connected with the upper flange 10;
the lower movable pipe 40 is sleeved on the outer side of the upper fixed pipe 30 and can axially move along the upper fixed pipe 30, a cavity 44 capable of containing the slip centralizing protector 300 is arranged in the lower movable pipe 40, the lower flange 20 is sleeved on the outer side of the oil pipe 100 below the slip centralizing protector 300 through a lower flange central hole 21, and the lower flange 20 is fixedly connected with the wellhead device 200;
the lower movable pipe 40 moves along the axial direction of the upper fixed pipe 30 towards the lower flange 20 until the lower movable pipe is in sealing fit with the lower flange 20, and the slip centralizing protector 300 is positioned in the inner cavity 44 of the lower movable pipe 40; when the lower movable pipe 40 moves in the direction away from the lower flange 20 in the axial direction of the upper fixed pipe 30, the slip straightening protector 300 can be completely exposed out of the inner cavity 44, and at this time, the slip straightening protector 300 can be detached.
Wherein, one end of the upper flange central hole 11 of the upper flange 10 facing the upper fixing pipe 30 is provided with a mounting hole 12, the top of the upper fixing pipe 30 is provided with a thread mounting part 34, the upper fixing pipe 30 is fastened in the mounting hole 12 through the thread of the thread mounting part 34, so as to realize the fixation between the upper fixing pipe 30 and the upper flange 10;
the bottom of the upper fixed pipe 30 is provided with a sealing ring 31 with the diameter larger than that of the body of the upper fixed pipe 30, the diameter of the sealing ring 31 is matched with the inner diameter of the lower movable pipe 40, and the circumferential surface of the sealing ring 31 is provided with a sealing ring 32 which is in sealing contact with the inner wall of the lower movable pipe 40; the top of the lower movable tube 40 is provided with a slide hole 45 which is matched with the diameter of the upper fixed tube 30 body and communicated with the inner cavity 44, the lower movable tube 40 is sleeved outside the upper fixed tube 30 through the slide hole 45 and moves along the axial direction, when the lower movable tube 40 is in sealing fit with the lower flange 20, the sealing ring 31 moves to the inner top of the inner cavity 44 of the lower movable tube 40, and the sealing ring 32 seals a gap at the joint of the bottom of the upper fixed tube 30 and the top of the lower movable tube 40;
the lower flange 20 is provided with a lower flange annular groove 23 with the diameter larger than the central hole 21 of the lower flange, the lower movable pipe 40 is provided with a lower movable pipe annular groove 46 corresponding to the lower flange annular groove, a backing ring 24 is arranged between the lower flange annular groove 23 and the lower movable pipe annular groove 46, when the lower movable pipe 40 moves away from the lower flange 20, the backing ring 24 is left in the lower flange annular groove 23, the lower movable pipe 40 moves towards the lower flange 20 until the backing ring 24 is compressed and deformed by the lower movable pipe annular groove 46, and a gap between the lower movable pipe 40 and the lower flange 20 is sealed by the backing ring 24;
the top of the lower movable pipe 40 is also provided with a lifting lug 42, a lifting hole 14 is formed in the upper flange 10 at a position opposite to the lifting lug 42, a lifting rope is put down through the lifting hole 14, the lifting rope is tied on the lifting lug 42, and the lower movable pipe 40 is lifted, so that the lifting mode is more convenient, the lower movable pipe 40 can be ensured to move up and down along the axial direction, in order to ensure uniform stress, the lifting lugs 42 are uniformly distributed in the circumferential direction of the lower movable pipe 40, and the number can be designed according to actual conditions;
when the lower movable pipe 40 is lifted, the opening at the upper end of the central hole 21 of the lower flange is in an open state, so as to prevent sundries from falling into the wellhead device 200, the invention is also provided with a lower flange cover plate 70, the lower flange cover plate 70 can be sleeved outside the oil pipe 100 and block the central hole 21 of the lower flange, for the convenience of installation, the lower flange cover plate 70 consists of two semicircular discs 71 which are sleeved outside the oil pipe 100 in a splicing way, specifically, the diameter of the semicircular discs 71 is larger than that of the central hole 21 of the lower flange, a semicircular groove 72 which can be attached to the outer side of the oil pipe 100 is arranged at the center of the semicircular disc 71, a semicircular block 73 which is matched with the central hole 21 of the lower flange is arranged at one side of the semicircular disc 71, a handle 74 for lifting is arranged at the other side of the semicircular disc 71, the semicircular block 73 is attached to the outer side of the oil pipe 100 through the semicircular groove 72 and extends into the, the two semicircular discs 71 are spliced into a circle, so that the central hole 21 of the lower flange can be plugged.
In another embodiment of the present invention, the sealing ring 31 and the lower flange central hole 21 are respectively provided with a corresponding fixed pipe accommodating cavity 33 and a lower flange accommodating cavity 25, the diameters of which are larger than the diameter of the slip centralizing protector 300, at this time, the diameter of the semicircular disc 71 is larger than the diameter of the lower flange accommodating cavity 25, and the semicircular plugging block 73 is matched with the diameter of the lower flange accommodating cavity 25; a detachable anti-abrasion sleeve 80 sleeved outside the slip centralizing protector 300 is arranged between the fixed pipe accommodating cavity 33 and the lower flange accommodating cavity 25, the anti-abrasion sleeve 80 is formed by splicing two semi-circular pipes 81, one end of the anti-abrasion sleeve 80 is provided with a limit screw 83 for limiting, a certain distance is reserved between the limit screw 83 and the end surface of the anti-abrasion sleeve 80, the limit screw 83 is connected to the side wall of the anti-abrasion sleeve 80 along the radial direction, namely, a threaded hole 82 is radially formed in the side wall of one end of each semi-circular pipe 81, the limit screw 83 is screwed in the threaded hole 82, the other end of the anti-abrasion sleeve 80 without the limit screw 83 is inserted into the lower flange accommodating cavity 25, the limit screw 83 is positioned at the upper end of the anti-abrasion sleeve 80, the top of the anti-abrasion sleeve 80 extends into the fixed pipe accommodating cavity 33, the limit screw 83 is positioned outside the fixed pipe accommodating cavity 33, and the limit, at this time, the limit screws 83 are used for preventing the abrasion-proof sleeve 80 from moving upwards and deviating from the original position, and in order to improve the stability, the limit screws 83 are uniformly distributed in the circumferential direction of the abrasion-proof sleeve 80; in another embodiment, two rows of threaded holes 82 are distributed axially in the wear sleeve 80 to accommodate installation requirements of two heights.
Specifically, the upper flange 10 is fixedly connected with the lower flange 20 through an outer support column 50, the upper flange 10 is provided with an outer support column upper mounting hole 13, the lower flange 20 is provided with an outer support column lower mounting hole 26, the outer support column 50 is provided with external threads, the upper end of the outer support column 50 penetrates through the outer support column upper mounting hole 13, the lower end of the outer support column 50 penetrates through the outer support column lower mounting hole 26, and the outer support column upper mounting hole 13 and the outer support column lower mounting hole 26 are uniformly distributed in the circumferential direction and are corresponding in number in order to improve stability through nut locking and limiting, and are simultaneously supported by a plurality of outer support columns 50, wherein an operation gap is reserved between two adjacent outer support columns 50, and the operation gap at least needs to meet the requirements of workers for dismounting and righting the slips 300;
a support plate 51 which can only rotate along the circumferential direction of the outer support column 50 is sleeved outside the outer support column 50, the support plate 51 can rotate to the moving path of the lower movable pipe 40, namely the support plate 51 is not positioned on the moving path of the lower movable pipe 40 in a normal state, the movement of the lower movable pipe 40 is not hindered, and only when the support plate 51 rotates to a specific position, the support plate is positioned on the moving path of the lower movable pipe 40; the lower movable pipe 40 can be supported by the support plate 51 after moving away from the lower flange 20; after the lower movable pipe 40 is lifted, the supporting plate 51 is rotated, the supporting plate 51 is enabled to be on the moving path of the lower movable pipe 40, the bottom of the lower movable pipe 40 is placed on the supporting plate 51 and is supported by the supporting plate 51, at the moment, the slip centralizing protector 300 is completely exposed out of the inner cavity 44, the dismounting and mounting operation of the slip centralizing protector 300 is carried out from the lower part, the lower movable pipe 40 does not need to be worried about to fall from the upper part, and the safety is improved;
because the distance between the upper flange 10 and the lower flange 20 is larger, the length of the outer support columns 50 is longer, in order to improve the overall stability, the plurality of outer support columns 50 are connected and reinforced by the reinforcing flange plate 54, the reinforcing flange plate 54 is positioned above the support plate 51, the circumferential direction of the reinforcing flange plate 54 is provided with connecting holes which are in one-to-one correspondence with the outer support columns 50, the upper side and the lower side of the reinforcing flange plate 54 are respectively locked by nuts sleeved on the outer support columns 50, the middle part of the reinforcing flange plate 54 is provided with a through hole for the lower movable pipe 40 to pass through, and the lifting movement of the lower movable pipe 40 cannot be hindered.
The supporting plate 51 is substantially rectangular, rotating holes 52 and fastening holes 53 are distributed in the length direction of the supporting plate 51, a supporting nut is screwed outside the outer supporting column 50, the supporting plate 51 is sleeved outside the outer supporting column 50 above the supporting nut through the rotating holes 52 and can rotate through the rotating holes 52, the supporting plate 51 is positioned and supported through the supporting nut, meanwhile, the position of the supporting plate 51 can be adjusted, and the slip righting protector 300 is completely exposed out of the inner cavity 44 when the bottom of the lower movable pipe 40 is placed on the supporting plate 51;
the bottom of the lower movable pipe 40 is provided with a connecting ring 41 with a diameter larger than the diameter of the body of the lower movable pipe 40, the connecting ring 41 is axially provided with a mounting hole 43, the lower flange 20 is provided with a locking hole 22 corresponding to the mounting hole 43, the mounting hole 43 and the locking hole 22 are uniformly distributed along the circumferential direction, the locking hole 22 is arranged at the inner side of the lower mounting hole 26 of the outer support column, preferably, the number of the locking hole 22 is the same as that of the lower mounting hole 26 of the outer support column, and the adjacent locking hole 22 and the lower mounting hole 26 of the outer support column are in the same radial direction, so that the gap between the two adjacent locking holes 22 can meet the requirement of dismounting the slip centralizing protector 300, a bolt can pass through the mounting hole 43 and the locking hole 22 to fasten the lower movable pipe 40 on the lower flange 20, and the backing ring 24 is compressed and deformed under the operation of bolt locking;
the fastening hole 53 is rotated towards the direction far away from the lower movable tube 40, the supporting plate 51 is not arranged on the moving path of the lower movable tube 40 at the moment and cannot block the movement of the lower movable tube 40, the fastening hole 53 is rotated towards the direction close to the lower movable tube 40, when the supporting plate 51 is rotated to the moving path of the lower movable tube 40, the fastening hole 53 and the mounting hole 43 are on the same axis, the lower movable tube 40 is placed on the supporting plate 51 through the connecting ring 41, and at the moment, a bolt can penetrate through the fastening hole 53 and the mounting hole 43 and be locked, so that the fixing of the fastening hole 53 and the mounting hole 43 is realized, the supporting plate 51 is prevented from being.
In order to improve the supporting effect of the support plate 51 on the lower movable pipe 40, the invention further comprises an inner support column 60, wherein the inner support column 60 comprises a positioning column 61, a stop ring 62 and a stud 63, the stop ring 62 is positioned between the positioning column 61 and the stud 63, the diameter of the stop ring 62 is larger than that of the locking hole 22, and a nut 64 for limiting the position of the support plate 51 is further connected onto the stud 63 in a threaded manner; when the lower movable pipe 40 is supported by the support plate 51, the screw 63 penetrates through the fastening hole 53 and the mounting hole 43 from below, the positioning column 61 extends into the locking hole 22, and finally the nut 64 is rotated until the nut is in contact with the support plate 51, so that the support of the support plate 51 on the lower movable pipe 40 is improved through the support effect of the inner support column 60.
The working principle of the invention is as follows:
when the slip centralizing protector 300 needs to be disassembled and assembled, firstly, a fastening bolt between the mounting hole 43 and the locking hole 22 is disassembled, a lifting rope is put down through the lifting hole 14, the lifting rope is tied on the lifting lug 42, the lower movable pipe 40 is lifted, the supporting plate 51 is rotated by 180 degrees, the fastening hole 53 and the mounting hole 43 are on the same axis, the screw 63 penetrates through the fastening hole 53 and the mounting hole 43 from the lower part, the positioning column 61 extends into the locking hole 22, finally, the nut 64 is rotated until the nut is contacted with the supporting plate 51, the lifting rope is put down, the lower movable pipe 40 is put on the supporting plate 51, and the upper end of the connecting ring 41 is screwed on the screw 63 through the nut to be locked and fixed; the semi-circular groove 72 is attached to the outer side of the oil pipe 100, the semi-circular blocking block 73 extends into the central hole 21 of the lower flange, the two semi-circular discs 71 are spliced into a circle to block the central hole 21 of the lower flange, so that sundries are prevented from falling into the wellhead device 200, and the dismounting operation of the slip centralizing protector 300 can be carried out at the moment;
after the disassembly and assembly operation is completed, the flange cover plate 70 is taken down, the anti-abrasion sleeve 80 is installed, the inner supporting column 60 is removed, the supporting plate 51 is turned over by 180 degrees, the lower movable pipe 40 is put down until the lower movable pipe is attached to the lower flange 20, and then bolts penetrate through the installation holes 43 and the locking holes 22 and are locked.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An elevating lubricator device, comprising:
the upper fixing pipe is sleeved outside the oil pipe above the slip centralizing protector and is fixedly connected with an upper flange sleeved outside the oil pipe;
the lower movable pipe is sleeved on the outer side of the upper fixed pipe and can axially move along the upper fixed pipe, the lower movable pipe can be in sealing fit with a lower flange sleeved on the outer side of the oil pipe, and when the lower movable pipe is in sealing fit with the lower flange, the slip centralizing protector is positioned in an inner cavity of the lower movable pipe;
the upper fixing pipe and the lower movable pipe are located between the upper flange and the lower flange, and when the lower movable pipe moves towards the direction far away from the lower flange, the slip centralizing protector can be completely exposed out of the inner cavity.
2. The elevating lubricator device according to claim 1, wherein the upper flange is fixedly connected to the lower flange through an outer support post, a support plate capable of rotating only along the circumferential direction of the outer support post is sleeved outside the outer support post, the support plate can rotate to a moving path of the lower movable pipe, and the lower movable pipe can be supported by the support plate after moving away from the lower flange; when the lower movable pipe is supported by the supporting plate, the slip centralizing protector is completely exposed out of the inner cavity.
3. The elevating lubricator assembly according to claim 2, wherein the support plate is substantially rectangular, one lengthwise end of the support plate is sleeved outside the outer support post, and the other lengthwise end of the support plate is rotatable to a moving path of the lower movable pipe.
4. The elevating lubricator device according to claim 3, wherein the bottom of the lower movable pipe is provided with a connecting ring with a diameter larger than that of the lower movable pipe body, the connecting ring is axially provided with mounting holes, the lower flange is provided with locking holes corresponding to the mounting holes, and bolts can pass through the mounting holes and the locking holes to fasten the lower movable pipe to the lower flange;
the support plate is also provided with a fastening hole corresponding to the mounting hole, and when the support plate rotates to the moving path of the lower movable pipe, the fastening hole and the mounting hole are on the same axis.
5. The elevating lubricator device according to claim 4, further comprising an inner support post comprising a locating post, a stop ring and a stud, the stop ring being positioned between the locating post and the stud, the stop ring having a diameter greater than a diameter of the locking hole; when the lower movable pipe is supported by the supporting plate, the positioning column can stretch into the locking hole, the screw rod can penetrate through the fastening hole and the mounting hole, and the screw rod is further connected with a nut used for limiting the position of the supporting plate in a threaded mode.
6. The elevating lubricator device according to claim 4 or 5, wherein the bottom of the upper fixed pipe is provided with a sealing ring with a diameter larger than that of the body of the upper fixed pipe, the diameter of the sealing ring is matched with the inner diameter of the lower movable pipe, and the circumferential surface of the sealing ring is provided with a sealing ring in sealing contact with the inner wall of the lower movable pipe;
the top of the lower movable pipe is provided with a sliding hole which is matched with the diameter of the upper fixed pipe body and is communicated with the inner cavity, and the lower movable pipe is sleeved on the outer side of the upper fixed pipe through the sliding hole and moves along the axial direction.
7. The elevating lubricator device according to claim 6, wherein a lifting lug is further disposed on the top of the lower movable pipe, and a lifting hole is disposed on the upper flange at a position opposite to the lifting lug.
8. The elevating lubricator device according to claim 6, wherein the connecting ring and the lower flange are provided with corresponding annular grooves, and a gasket is arranged between the annular grooves, and the gasket seals a gap between the connecting ring and the lower flange when the lower movable pipe is fastened to the lower flange by the bolts.
9. The elevating lubricator device according to any one of claims 1, 7 and 8, further comprising a lower flange cover plate, wherein the lower flange cover plate can be sleeved on the outer side of the oil pipe and can block a central hole of the lower flange, and the lower flange cover plate is composed of two semicircular discs.
10. The lift lubricator device according to claim 9, wherein the central holes of the sealing ring and the lower flange are respectively provided with a corresponding containing cavity with a diameter larger than that of the slip centralizing protector, a detachable anti-abrasion sleeve sleeved outside the slip centralizing protector is arranged between the containing cavities, the anti-abrasion sleeve is formed by splicing two semicircular pipes, and the top of the anti-abrasion sleeve is provided with a limiting screw for limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346200.1A CN110905436A (en) | 2019-12-24 | 2019-12-24 | Lifting type lubricator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346200.1A CN110905436A (en) | 2019-12-24 | 2019-12-24 | Lifting type lubricator device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110905436A true CN110905436A (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911346200.1A Pending CN110905436A (en) | 2019-12-24 | 2019-12-24 | Lifting type lubricator device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110905436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405251A (en) * | 2021-05-27 | 2022-11-29 | 大庆油田有限责任公司 | Telescopic wellhead blowout preventer |
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| US20050139360A1 (en) * | 2003-12-31 | 2005-06-30 | Van Bilderbeek Bernard H. | Externally activated seal system for wellhead |
| CN104863538A (en) * | 2014-02-21 | 2015-08-26 | 任丘市博鑫石油机械制造有限公司 | Setting blowout preventer device with pressed plug |
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2019
- 2019-12-24 CN CN201911346200.1A patent/CN110905436A/en active Pending
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| US20050139360A1 (en) * | 2003-12-31 | 2005-06-30 | Van Bilderbeek Bernard H. | Externally activated seal system for wellhead |
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| CN208830928U (en) * | 2018-07-20 | 2019-05-07 | 中国石油天然气集团公司 | Oil pipe reduced pipe connection frame and operating device |
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| CN115405251A (en) * | 2021-05-27 | 2022-11-29 | 大庆油田有限责任公司 | Telescopic wellhead blowout preventer |
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