CN210317192U - High-torsion-resistance coupling capable of realizing petroleum casing connection - Google Patents

High-torsion-resistance coupling capable of realizing petroleum casing connection Download PDF

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Publication number
CN210317192U
CN210317192U CN201920895717.5U CN201920895717U CN210317192U CN 210317192 U CN210317192 U CN 210317192U CN 201920895717 U CN201920895717 U CN 201920895717U CN 210317192 U CN210317192 U CN 210317192U
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China
Prior art keywords
coupling
threaded rod
screw
coupling main
casing
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Active
Application number
CN201920895717.5U
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Chinese (zh)
Inventor
杨波
张茜
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Xiangyang Baiyu Machinery Co Ltd
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Xiangyang Baiyu Machinery Co Ltd
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Priority to CN201920895717.5U priority Critical patent/CN210317192U/en
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Abstract

The utility model relates to the technical field of petroleum casing pipes, in particular to a high anti-torsion coupling capable of realizing petroleum casing pipe connection, which comprises a coupling main body and a casing pipe, wherein the casing pipe is sleeved at two ends of the coupling main body, a flange plate is welded on the end surface of one end of the casing pipe close to the middle part of the coupling main body, a first screw hole is vertically installed at the top end of the flange plate, a threaded rod is horizontally screwed between the first screw holes, two ends of the threaded rod extend out of the first screw hole and are in threaded connection with a first nut, the upper side wall and the lower side wall of one end of the casing pipe far away from the coupling main body are vertically provided with; the utility model discloses when with oil bushing, combine closely on the terminal surface, can not take place to leak, the threaded rod is made by high strength stainless steel, has stronger resistance to deformation and corrosion-resistant ability, increase of service life greatly practices thrift the cost.

Description

High-torsion-resistance coupling capable of realizing petroleum casing connection
Technical Field
The utility model relates to an oil casing technical field especially relates to a can realize anti-torque coupling of high of oil bushing.
Background
The petroleum casing pipe is an important tool in petroleum and natural gas exploration and development, the petroleum casing pipe is often connected by using a coupling, but most of the casing pipe couplings are complex in structure, unstable in connection and easy to damage, so that the production efficiency of the whole well is possibly reduced, and even the whole well is scrapped. The unconventional gas fields such as compact gas, sandstone gas, shale gas and the like are developed by adopting horizontal well multi-section volume fracturing, the air pressure of a reservoir is lower than 60MPa, and the existing petroleum casing coupling has poor deformation resistance and poor water tightness of high-internal-pressure fracturing and cannot meet the sealing requirement of production gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that the anti deformability of the casing coupling is poor among the prior art, and the anti-torsion coupling of height that can realize oil bushing is proposed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the design one kind can realize the antitorque coupling of high of oil bushing, including coupling main part and sleeve pipe, the sleeve pipe cover is established at coupling main part both ends, the sleeve pipe has the ring flange near the welding on the one end terminal surface at coupling main part middle part, the vertical first screw of installing in ring flange top, horizontal spiro union has the threaded rod between the first screw, first screw and threaded connection have first nut are extended to the threaded rod both ends, the sleeve pipe has been kept away from and has been seted up the second screw on the wall of both sides about the one end of coupling main part perpendicularly, the spiro union has the bolt in the second screw.
Preferably, the threaded rod is an M straight threaded rod, and the length of the threaded rod is greater than that of the coupling body.
Preferably, the inner side wall of the flange plate is lined with a sealing gasket, and the inner diameter length of the flange plate is smaller than the maximum outer diameter length of the end face of the coupling main body.
Preferably, the top end of the bolt is vertically welded with a limiting block.
The utility model provides a can realize anti-torque coupling of high of oil bushing, beneficial effect lies in: this can realize anti-torque coupling of oil bushing's high pass through when ring flange and oil bushing, combine closely on the terminal surface, can not take place to leak, during the threaded rod rotating, can remove the sleeve pipe at both ends to coupling main part middle part to drag the oil sleeve pipe at coupling main part both ends to the middle part, improve the gas tightness, the threaded rod is M straight threaded rod, M straight threaded rod is made by high strength stainless steel, has stronger resistance to deformation and corrosion-resistant ability, increase of service life greatly, saving cost.
Drawings
Fig. 1 is the utility model provides a can realize the high antitorque coupling's of oil casing coupling front view.
Fig. 2 is a side view of the high anti-torque coupling that can realize the oil casing connection of the utility model.
In the figure: coupling main part 1, sleeve pipe 2, ring flange 3, first screw 4, threaded rod 5, first nut 6, second screw 7, bolt 8, stopper 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a high anti-torque coupling capable of realizing petroleum casing connection comprises a coupling main body 1 and a casing 2, wherein the casing 2 is sleeved at two ends of the coupling main body 1, a flange 3 is welded on the end surface of one end of the casing 2 close to the middle part of the coupling main body 1, when the flange 3 is connected with a petroleum casing, the end faces are tightly combined without leakage, the inner side wall of the flange plate 3 is lined with a sealing gasket which further improves the sealing property and prevents oil leakage, and the length of the inner diameter of the flange 3 is smaller than the length of the maximum outer diameter of the end surface of the coupling main body 1, the top end of the flange 3 is vertically provided with a first screw hole 4, a threaded rod 5 is horizontally screwed between the first screw holes 4, when the threaded rod 5 rotates, can move the sleeve pipe 2 at both ends to 1 middle part of coupling main part to drag the oil casing pipe at 1 both ends of coupling main part to the middle part, improve the gas tightness.
First screw 4 and threaded connection extend to 5 both ends of threaded rod have first nut 6, threaded rod 5 is M4 straight threaded rod, M4 straight threaded rod is made by the high strength stainless steel, stronger anti-deformation and corrosion-resistant ability has, greatly prolonged service life, save cost, and threaded rod 5's length is greater than coupling main part 1's length, second screw 7 has been seted up perpendicularly on the wall of both sides about the one end that coupling main part 1 was kept away from to sleeve pipe 2, bolt 8 has been screwed in second screw 7, the vertical welding in 8 tops of bolt has stopper 9, oil casing pipe can be locked in the downward rotation of bolt 8, when rotating threaded rod 5, let sleeve pipe 2 and coupling main part 1 be in relatively static state all the time.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (4)

1. A high anti-torque coupling capable of realizing petroleum casing connection comprises a coupling body (1) and a casing (2), and is characterized in that: the utility model discloses a coupling, including coupling main part (1), sleeve pipe (2), horizontal spiro union have threaded rod (5) between first screw (4), threaded rod (5) both ends are extended first screw (4) and threaded connection have first nut (6), sleeve pipe (2) cover is established at coupling main part (1) both ends, the welding has ring flange (3) on sleeve pipe (2) is close to the one end terminal surface at coupling main part (1) middle part, the vertical first screw (4) of installing in ring flange (3) top, second screw (7) have been seted up perpendicularly on the wall of both sides about the one end of coupling main part (1) is kept away from in sleeve pipe (2), spiro union has bolt (8) in second screw (7).
2. A high torque-resistant coupling for oil casing connections according to claim 1, characterized in that the threaded rod (5) is a M4 straight threaded rod, and the length of the threaded rod (5) is greater than the length of the coupling body (1).
3. The high-torque-resistance coupling capable of realizing the connection of the oil casings is characterized in that the inner side wall of the flange plate (3) is lined with a sealing gasket, and the inner diameter length of the flange plate (3) is smaller than the maximum outer diameter length of the end face of the coupling body (1).
4. The high-torque-resistance coupling capable of realizing oil casing connection according to claim 1, characterized in that a limiting block (9) is vertically welded on the top end of the bolt (8).
CN201920895717.5U 2019-06-14 2019-06-14 High-torsion-resistance coupling capable of realizing petroleum casing connection Active CN210317192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920895717.5U CN210317192U (en) 2019-06-14 2019-06-14 High-torsion-resistance coupling capable of realizing petroleum casing connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920895717.5U CN210317192U (en) 2019-06-14 2019-06-14 High-torsion-resistance coupling capable of realizing petroleum casing connection

Publications (1)

Publication Number Publication Date
CN210317192U true CN210317192U (en) 2020-04-14

Family

ID=70143781

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920895717.5U Active CN210317192U (en) 2019-06-14 2019-06-14 High-torsion-resistance coupling capable of realizing petroleum casing connection

Country Status (1)

Country Link
CN (1) CN210317192U (en)

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