CN216767346U - Slurry discharge device for casing pipe pressurized punching - Google Patents

Slurry discharge device for casing pipe pressurized punching Download PDF

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Publication number
CN216767346U
CN216767346U CN202220265650.9U CN202220265650U CN216767346U CN 216767346 U CN216767346 U CN 216767346U CN 202220265650 U CN202220265650 U CN 202220265650U CN 216767346 U CN216767346 U CN 216767346U
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China
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hole
pipe
connecting block
slurry
surrounding
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CN202220265650.9U
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Chinese (zh)
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刘峰
胡国金
庹海洋
李波
孙晓飞
韩东东
向良炜
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CNOOC China Ltd Tianjin Branch
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CNOOC China Ltd Tianjin Branch
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Abstract

The application provides a mud discharging device for casing belt pressure punching, relates to oil and gas exploitation technical field. The slurry discharging device for the pressurized punching of the casing comprises a clamp and a straight pipe, wherein the clamp comprises a first surrounding part and a second surrounding part, the first end of the second surrounding part is rotatably connected with the first end of the first surrounding part, the second end of the second surrounding part is detachably connected with the second end of the first surrounding part, and when the second end of the first surrounding part is connected with the second end of the second surrounding part, a hoop space is formed in the middle and used for hooping the casing to be subjected to slurry discharging for one circle; the straight pipe is connected with the side wall of the first surrounding part, the first surrounding part is provided with a through hole penetrating through the side wall, and the through hole is opposite to and communicated with the channel of the straight pipe. According to the technical scheme, the recycling of the slurry displacement liquid can be realized, and the technical problems that the slurry displacement liquid is discharged into the ocean and the site safety risk is high can be solved by cutting the slurry discharge hole on the sleeve.

Description

Slurry discharge device for casing pipe pressurized punching
Technical Field
The application relates to the technical field of petroleum and natural gas exploitation, in particular to a slurry discharging device for casing pipe pressure punching.
Background
Along with the attention of governments on the environment in recent years, the environmental protection pressure is higher and higher, so that zero emission of the Bohai sea oil field is not feasible in the petroleum exploitation process.
In the process of drilling, the slurry displacement fluid is used for pushing the slurry to move so as to complete well cementation, after well cementation is completed, the slurry displacement fluid above the ground in a casing needs to be discharged, in the prior art, a slurry discharge hole is cut in the casing for slurry discharge, fire operation is needed when the slurry discharge hole is cut, the site safety risk is high, the slurry displacement fluid is directly discharged into the sea, and the environment is seriously polluted.
Therefore, the above-mentioned technical problems need to be further solved.
SUMMERY OF THE UTILITY MODEL
The purpose of the embodiment of the application is to provide a mud discharging device for casing pipe pressure punching to avoid mud in the casing pipe to replace liquid and discharge into the ocean, protect the environment.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
this application first aspect provides a thick liquid device that puts that is used for sleeve pipe area to press to punch, includes:
the holding clamp comprises a first holding part and a second holding part, wherein the first end of the second holding part is rotatably connected with the first end of the first holding part, the second end of the second holding part is detachably connected with the second end of the first holding part, and when the second end of the first holding part is connected with the second end of the second holding part, a holding hoop space is formed in the middle part and is used for holding a slurry to be discharged for one circle;
the straight pipe is connected with the side wall of the first surrounding part, the first surrounding part is provided with a through hole penetrating through the side wall, and the through hole is opposite to and communicated with the channel of the straight pipe.
Optionally, in the slurry discharging device for casing pipe pressure punching, the first surrounding portion and the second surrounding portion are both semicircular plates, and a circular hoop space is formed in the middle of the first surrounding portion when the second end of the first surrounding portion is connected with the second end of the second surrounding portion.
Optionally, the slurry discharging device for casing pipe pressure perforation further includes:
the first connecting block is connected with the second end of the first surrounding part;
the second connecting block is connected with the second end of the second encircling part;
the first connecting block is provided with a U-shaped groove, the second connecting block is provided with a first bolt hole, and a bolt penetrates through the first bolt hole and the U-shaped groove to be matched with a nut, so that the first connecting block and the second connecting block are connected in a clamping manner through the bolt and the nut;
or, a first bolt hole is formed in the second connecting block, a second bolt hole is formed in the first connecting block, and a bolt penetrates through the first bolt hole and the second bolt hole to be matched with a nut, so that the first connecting block is connected with the second connecting block through the bolt.
Optionally, the slurry discharging device for casing pipe pressure perforation further includes:
at least one first pin tube connected with a first end of the first embracing part;
at least one second pin tube connected with a first end of the second hoop;
and the pin shaft penetrates through the first pin pipe and the second pin pipe.
Optionally, the slurry discharging device for casing pipe pressure perforation further includes:
the sealing ring is connected to the inner wall of the first surrounding part for a circle of the through hole, and the sealing ring is used for being tightly pressed on the surface of the sleeve to be discharged when the first surrounding part is buckled on the sleeve to be discharged;
wherein the diameter of the sealing ring is larger than or equal to the aperture of the through hole.
Optionally, the slurry discharging device for casing pipe pressure perforation is described in the foregoing, wherein the sealing ring is made of butadiene-acrylonitrile rubber.
Optionally, in the slurry discharge device for casing pipe pressurized drilling, a diameter of the straight pipe is smaller than or equal to a bore diameter of the through hole.
Optionally, in the slurry discharge device for casing pipe pressurized drilling, the through hole is disposed in a center of the first surrounding portion.
Optionally, in the slurry discharging device for casing pipe pressure punching, a first through hole is formed in a side wall of one end, close to the first surrounding portion, of the straight pipe, and a slurry discharging pipe is connected to the first through hole.
Optionally, in the slurry discharging device for casing pipe pressurized drilling, a switch valve is arranged on the slurry discharging pipe, and a sealing gasket is arranged at a joint of the slurry discharging pipe and the first surrounding part.
Compared with the prior art, the slurry discharging device for casing pipe pressurized punching is provided with the holding clamp, the holding clamp comprises the first holding part and the second holding part, the first holding part is connected with the straight pipe, the first holding part is connected with the second holding part, the middle part of the first holding part forms a holding hoop space, after one circle of casing pipe to be discharged is held by the holding hoop, perforation can be carried out according to the position of the straight pipe, slurry displacing liquid in the casing pipe to be discharged is discharged into the straight pipe for recycling, and the working fire is not needed, so that the problem that in the prior art, one slurry discharging hole is cut in the casing pipe to discharge the slurry displacing liquid, and the slurry displacing liquid is directly discharged to the sea to pollute the environment can be solved; moreover, the cutting of the slurry discharging hole requires firing operation, and the site safety risk is high.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 schematically shows a schematic structural view of a slurry discharge device for casing belt pressure perforation;
FIG. 2 is a schematic structural diagram of a clamp;
fig. 3 schematically shows a first view angle of the first surrounding part;
fig. 4 schematically shows a structural diagram of a second view angle of the first embracing portion;
fig. 5 schematically shows a structural diagram of a third view angle of the first surrounding part;
fig. 6 schematically shows a first view angle of the second hoop part;
fig. 7 schematically shows a second view angle of the second hoop part;
fig. 8 schematically shows a third perspective structural diagram of the second hoop part.
The reference numbers illustrate:
the clamp comprises a clamp 1, a first surrounding part 11, a through hole 111, a second surrounding part 12 and a hoop space 13; a straight pipe 2; the first connecting block 3 and the U-shaped groove 31; a second connecting block 4, a first bolt hole 41; a first pin tube 5; a second pin tube 6; a pin 7; a seal ring 8; a slurry discharge pipe 9.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: there are three cases of A, A and B, and B. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).
In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
Examples
As shown in fig. 1-4, according to some embodiments of the present application, there is provided a slurry discharge apparatus for casing belt pressure perforation, including: a holding clamp 1 and a straight pipe 2;
the holding clamp 1 comprises a first holding part 11 and a second holding part 12, wherein a first end of the second holding part 12 is rotatably connected with a first end of the first holding part 11, a second end of the second holding part 12 is detachably connected with a second end of the first holding part 11, and a holding hoop space 13 is formed in the middle when the second end of the first holding part 11 is connected with the second end of the second holding part 12 and is used for holding a ring of a casing to be subjected to slurry discharge;
the straight pipe 2, the straight pipe 2 with the first lateral wall that embraces portion 11 is connected, first portion 11 that embraces is provided with the through-hole 111 that runs through the lateral wall, through-hole 111 with the passageway of straight pipe 2 is relative and the intercommunication.
Specifically, the clamp 1 includes a first surrounding portion 11 and a second surrounding portion 12, and a through hole 111 penetrating through a side wall is formed in the first surrounding portion 11; the size, material and the like of the first surrounding part 11 and the second surrounding part 12 can be preset according to the use requirement, for example, the material of the first surrounding part 11 and the second surrounding part 12 can be stainless steel, alloy and the like; the shapes of the first surrounding part 11 and the second surrounding part 12 can also be preset according to the use requirement, for example, the first surrounding part 11 and the second surrounding part 12 can be both arc-shaped, so that the first surrounding part 11 and the second surrounding part 12 can be better clamped on the outer wall of the casing pipe to be subjected to slurry discharge, and the clamp 1 can be better opened and closed; the first end of the first surrounding part 11 is rotatably connected with the first end of the second surrounding part 12, which can be a shaft sleeve connection, a hinge connection and the like, so that the first surrounding part 11 and the second surrounding part 12 can rotate in an angle; the connection can be dismantled with the second end of the 12 second ends of the two embracing parts to the second end of the first embracing part 11, can be bolted connection, buckle connection and the like, so that the embrace hoop that the clamp 1 is more convenient is treating the mud discharging sleeve outer wall, and convenient to detach.
The outer walls of the straight pipe 2 and the first surrounding part 11 can be welded, riveted and the like; the size, the material and the like of the straight pipe 2 can be preset according to the use requirement, and the material can be stainless steel, alloy and the like; the channel of the straight pipe 2 is opposite to and communicated with the through hole 111 on the first surrounding part 11, the straight pipe 2 is used for drilling a slurry discharging hole on a casing pipe to be discharged, and the slurry discharging hole is opposite to and communicated with the through hole 111, so that slurry displacement liquid in the casing pipe to be discharged is discharged from the straight pipe 2.
In the drilling process, when a casing is fastened, firstly injecting cement slurry into the casing, then injecting a slurry displacing liquid into the casing, pushing the cement slurry into an annular space between a well wall and the casing by the slurry displacing liquid, fixing the casing on the well wall by the slurry, and after well cementation is finished, discharging the slurry displacing liquid above the ground in the casing to be discharged, so that a clamp 1 and a straight pipe 2 are arranged, the clamp 1 comprises a first surrounding part 11 and a second surrounding part 12, a through hole 111 penetrating through the side wall is formed in the side wall of the first surrounding part 11, the straight pipe 2 is arranged in a position corresponding to the through hole 111, and an anchor ear space 13 is formed in the middle when the second end of the first surrounding part 11 is connected with the second end of the second surrounding part 12 and is used for encircling a circle of the casing to be discharged; when needs are treating to arrange the thick liquid sleeve pipe and go up perforation and put the thick liquid, with the thick liquid device staple bolt of putting that is used for the sleeve pipe area to press to punch of this application on treating to arrange the thick liquid sleeve pipe, carry out the perforation according to the position of straight tube 2 for straight tube 2 with treat to arrange and be formed with the intercommunication space between the thick liquid sleeve pipe, will treat to arrange the thick liquid sleeve pipe in the mud more than ground and replace the liquid discharge, mud is replaced the liquid and is flowed into collection device by straight tube 2 in, carries out recycle.
In the technical scheme of the embodiment of the application, in the prior art, before the casing pipe to be discharged is cut, a slurry discharge hole is required to be cut on the casing pipe to be discharged, the slurry discharge hole is mainly used for discharging the slurry displacement liquid, but the slurry displacement liquid is directly discharged into the sea, so that the environment is seriously polluted; moreover, the cutting of the slurry discharging hole requires firing operation, so that the site safety risk is high; meanwhile, along with the attention of the government on the environment in recent years, the environmental protection pressure is higher and higher, so that zero emission of the Bohai sea oil field is not kept; how to solve the difficult problem that mud displacement liquid does not go into sea polluted environment and becomes the Bohai sea oil field and must solve, to this difficult problem, this application designs a mud discharging device for the casing pipe area is pressed and is punched, can hold tightly and treat the thick liquid casing pipe of arranging and prevent that mud displacement liquid from leaking, can realize on-the-spot fireless operation again, guarantees operation safety.
Compared with the prior art, the grout discharging device for punching is pressed to sleeve pipe area that this application provided, through setting up armful clamp 1, armful clamp 1 includes first armful portion 11 and second armful portion 12, be connected with straight tube 2 on the first armful portion 11, first armful portion 11 is connected with second armful portion 12 and forms staple bolt space 13 at the middle part, the staple bolt is after treating row's thick liquid sleeve pipe a week, can carry out the perforation according to straight tube 2 position, will treat that the mud in the row's thick liquid sleeve pipe replaces in the liquid arranges straight tube 2, recycle carries out, need not the operation of firing, can solve among the prior art and cut one on treating row's thick liquid sleeve pipe and put the thick liquid hole and need the operation of firing with the direct sea pollution environment of mud replacement liquid and cutting, the problem that the on-the-spot safety risk is high.
As shown in fig. 2, in an embodiment, the first surrounding portion 11 and the second surrounding portion 12 are both semicircular plates, and a circular hoop space 13 is formed in a middle portion when the second end of the first surrounding portion 11 is connected to the second end of the second surrounding portion 12.
Specifically, first portion of embracing 11 and second portion of embracing 12 are the semicircle board, make better staple bolt wait to arrange thick liquid sleeve pipe outer wall on, the middle part is formed with circular shape staple bolt space 13 when the second end of first portion of embracing 11 and the second end of second portion of embracing 12 are connected, the size of staple bolt space 13 with wait to arrange thick liquid sheathed tube external diameter and differ a little, can be provided with sealed the pad on the inner wall of first portion of embracing 11 and second portion of embracing 12, make and wait to arrange thick liquid sleeve pipe and first portion of embracing 11 and the better laminating of second portion of embracing 12.
As shown in fig. 1 to 8, in a specific implementation, the method further includes: the first connecting block 3 is connected with the second end of the first surrounding part 11; the second connecting block 4 is connected with the second end of the second encircling part 12;
a U-shaped groove 31 is formed in the first connecting block 3, a first bolt hole 41 is formed in the second connecting block 4, and a bolt penetrates through the first bolt hole 41 and the U-shaped groove 31 to be matched with a nut, so that the first connecting block 3 and the second connecting block 4 are connected in a clamping manner through the bolt and the nut;
or, a first bolt hole 41 is formed in the second connecting block 4, a second bolt hole is formed in the first connecting block 3, and a bolt penetrates through the first bolt hole 41 and the second bolt hole to be matched with a nut, so that the first connecting block 3 is connected with the second connecting block 4 through the bolt.
Specifically, the slurry discharging device for casing pipe pressurized punching further comprises a first connecting block 3 and a second connecting block 4, wherein the first connecting block 3 and the first end of the first surrounding part 11 can be integrally formed or welded; the second connecting block 4 and the second end of the second surrounding part 12 can be integrally formed, or welded; the first connecting block 3 and the second connecting block 4 can be both arranged on the whole main body and also can be formed by a plurality of monomers, and the number of the monomers on the first connecting block 3 and the second connecting block 4 is the same; can all be provided with the bolt hole on first connecting block 3 and the second connecting block 4, the bolt passes the bolt hole, the nut is screwed up, with the fastening of first portion 11 and the second portion 12 of embracing, first connecting block 3 and second connecting block 4 also can be one and be provided with U type groove 31, another is provided with the bolt hole, the bolt passes bolt hole and U type groove 31, make first portion 11 and the second portion 12 joint of embracing, convenient to detach and installation more, wherein, second bolt hole/U type groove 31 on the first connecting block 3 is the same with the quantity of the first bolt hole 41 on the second connecting block 4.
Among the technical scheme of this application embodiment, be provided with first connecting block 3 and second connecting block 4 to all be provided with the bolt hole on first connecting block 3 and second connecting block 4, or be provided with first bolt hole 41 on one, be provided with U type groove 31 on another, through bolted connection, convenient dismantlement and installation.
As shown in fig. 1 to 8, in a specific implementation, the method further includes: at least one first pin tube 5, and at least one second pin tube 6; the first pin pipe 5 is connected with the first end of the first surrounding part 11; the second pin tube 6 is connected with a first end of the second surrounding part 12;
wherein the pin shaft 7 passes through the first pin pipe 5 and the second pin pipe 6.
Specifically, the slurry discharging device for casing pipe pressurized drilling further comprises at least one first pin pipe 5 and at least one second pin pipe 6, the first pin pipe 5 is connected with a first end of the first encircling part 11, the number of the first pin pipes 5 can be one or more, the number of the first pin pipes 5 and the number of the second pin pipes 6 can be staggered, the second pin pipes 6 are connected with a second end of the second encircling part 12, and the number of the second pin pipes 6 can be one or more; the pin 7 passes through the first pin pipe 5 and the second pin pipe 6, so that the first surrounding part 11 and the second surrounding part 12 are integrated, and the first surrounding part 11 and the second surrounding part 12 can rotate at an angle.
In the technical scheme of this application embodiment, can connect through round pin axle 7 between first portion 11 and the second portion 12 of embracing, also can be for through hinge connection for rotate between first portion 11 and the second portion 12 of embracing and be connected, and easy to assemble and dismantlement.
As shown in fig. 1 and fig. 3, in the specific implementation, the method further includes: the sealing ring 8 is connected to the inner wall of the first surrounding part 11 for a circle of the through hole 111, and the sealing ring 8 is used for pressing the surface of the casing to be discharged when the first surrounding part 11 is buckled on the casing to be discharged;
wherein, the diameter of the sealing ring 8 is larger than or equal to the aperture of the through hole 111.
Specifically, a thick liquid device of putting for sleeve pipe area is pressed and is punched still includes sealing ring 8, set up sealing ring 8 and avoid mud to replace liquid and reveal away from treating to arrange the gap between thick liquid sleeve pipe and the through-hole 111, the first end laminating of sealing ring 8 is in the first through-hole 111 department of embracing on the inner wall of portion 11, the second end of sealing ring 8 with treat to arrange the thick liquid sleeve pipe laminating, sealing ring 8 has good elasticity, make and treat to arrange thick liquid sleeve pipe and the good sealing of through-hole 111 department, the size and the material of sealing ring 8 all can set up in advance according to the user demand.
In the specific implementation, as shown in fig. 1, the sealing ring 8 is nitrile butadiene rubber.
Specifically, the material of the sealing ring 8 may be nitrile rubber, natural rubber, butyl rubber, etc., and nitrile rubber is taken as an example in the present application.
As shown in fig. 1 and 3, in the specific implementation, the diameter of the straight pipe 2 is smaller than or equal to the aperture of the through hole 111.
Specifically, the diameter of the straight pipe 2 is smaller than or equal to the aperture of the through hole 111 on the first surrounding part 11, so that the straight pipe 2 is connected with the outer wall of the first surrounding part 11 or passes through the through hole 111 to be connected with the inner wall of the first surrounding part 11.
In the embodiment, as shown in fig. 3, the through hole 111 is disposed at a central position of the first surrounding portion 11.
Specifically, the through hole 111 is provided at the center of the first surrounding portion 11, so that the entire device is more stable.
In the specific implementation, as shown in fig. 1, a first through hole is formed in a side wall of one end of the straight pipe 2 close to the first surrounding part 11, and the first through hole is connected with a pulp discharge pipe 9.
Specifically, be provided with first through-hole on the lateral wall of the one end that is close to first portion 11 of embracing on straight tube 2, first through-hole department is connected with arranges thick liquid pipe 9, can be for welding, joint etc. arranges thick liquid pipe 9 and straight tube 2 at same horizontal plane to be the angle setting, preferably be 90 settings between straight tube 2 and the thick liquid pipe 9 of arranging.
In the technical scheme of this application embodiment, set up row's thick liquid pipe 9 for the straight tube 2 is close to the whole discharges of residual mud replacement liquid in the near-end position, flows into collection device by row's thick liquid pipe 9 and carries out recycle.
In the specific implementation, as shown in fig. 1, a switch valve (not shown in the figure) is disposed on the slurry discharge pipe 9, and a sealing gasket is disposed at a connection position of the slurry discharge pipe 9 and the first surrounding portion 11.
Specifically, a switch valve is arranged on the slurry discharge pipe 9, and whether the slurry displacement liquid is discharged from the slurry discharge pipe 9 can be controlled through the switch valve; when the slurry is discharged at the beginning, the switch valve can be closed because the slurry discharge amount is relatively large, so that the slurry displacement liquid is discharged from the straight pipe 2, and when the slurry discharge speed is obviously reduced, the switch valve can be opened, so that the residual slurry displacement liquid in one end, close to the sleeve pipe to be discharged, of the straight pipe 2 is discharged from the slurry discharge pipe 9.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (10)

1. The utility model provides a thick liquid device that puts that is used for sleeve pipe area to press to punch which characterized in that includes:
the holding clamp comprises a first holding part and a second holding part, wherein the first end of the second holding part is rotatably connected with the first end of the first holding part, the second end of the second holding part is detachably connected with the second end of the first holding part, and when the second end of the first holding part is connected with the second end of the second holding part, a holding hoop space is formed in the middle part and is used for holding a slurry to be discharged for one circle;
the straight pipe is connected with the side wall of the first surrounding part, the first surrounding part is provided with a through hole penetrating through the side wall, and the through hole is opposite to and communicated with the channel of the straight pipe.
2. The slurry discharging device for casing pipe belt pressure perforation according to claim 1,
the first surrounding portion and the second surrounding portion are semicircular plates, and a circular hoop space is formed in the middle of the first surrounding portion and the second surrounding portion when the second end of the first surrounding portion is connected with the second end of the second surrounding portion.
3. The mud discharging device for casing pipe belt pressure perforation according to claim 1, further comprising:
the first connecting block is connected with the second end of the first surrounding part;
the second connecting block is connected with the second end of the second encircling part;
the first connecting block is provided with a U-shaped groove, the second connecting block is provided with a first bolt hole, and a bolt penetrates through the first bolt hole and the U-shaped groove to be matched with a nut, so that the first connecting block and the second connecting block are connected in a clamping manner through the bolt and the nut;
or, a first bolt hole is formed in the second connecting block, a second bolt hole is formed in the first connecting block, and a bolt penetrates through the first bolt hole and the second bolt hole to be matched with a nut, so that the first connecting block is connected with the second connecting block through the bolt.
4. The mud discharging device for casing pipe belt pressure perforation according to claim 1, further comprising:
at least one first pin tube connected with a first end of the first embracing part;
at least one second pin tube connected with a first end of the second hoop;
and the pin shaft penetrates through the first pin pipe and the second pin pipe.
5. The mud discharging device for casing pipe belt pressure perforation according to claim 1, further comprising:
the sealing ring is connected to the inner wall of the first surrounding part for a circle of the through hole, and the sealing ring is used for being tightly pressed on the surface of the sleeve to be discharged when the first surrounding part is buckled on the sleeve to be discharged;
wherein the diameter of the sealing ring is larger than or equal to the aperture of the through hole.
6. The slurry discharging device for casing pipe belt pressure perforation according to claim 5,
the sealing ring is made of butadiene-acrylonitrile rubber.
7. The slurry discharging device for casing pipe belt pressure perforation according to claim 1,
the diameter of the straight pipe is smaller than or equal to the aperture of the through hole.
8. The slurry discharging device for casing pipe belt pressure perforation according to claim 1,
the through hole is formed in the center of the first surrounding portion.
9. The mud discharging device for casing belt pressure perforation according to claim 1,
the lateral wall of one end, close to the first surrounding part, of the straight pipe is provided with a first through hole, and the first through hole is connected with a pulp discharging pipe.
10. The slurry discharge apparatus for casing pipe belt pressure perforation according to claim 9,
the slurry discharging pipe is provided with a switch valve, and a sealing gasket is arranged at the joint of the slurry discharging pipe and the first surrounding part.
CN202220265650.9U 2022-02-08 2022-02-08 Slurry discharge device for casing pipe pressurized punching Active CN216767346U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220265650.9U CN216767346U (en) 2022-02-08 2022-02-08 Slurry discharge device for casing pipe pressurized punching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220265650.9U CN216767346U (en) 2022-02-08 2022-02-08 Slurry discharge device for casing pipe pressurized punching

Publications (1)

Publication Number Publication Date
CN216767346U true CN216767346U (en) 2022-06-17

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Application Number Title Priority Date Filing Date
CN202220265650.9U Active CN216767346U (en) 2022-02-08 2022-02-08 Slurry discharge device for casing pipe pressurized punching

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Country Link
CN (1) CN216767346U (en)

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