CN219158947U - Reinforcing tool for casing repairing - Google Patents
Reinforcing tool for casing repairing Download PDFInfo
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- CN219158947U CN219158947U CN202223590881.6U CN202223590881U CN219158947U CN 219158947 U CN219158947 U CN 219158947U CN 202223590881 U CN202223590881 U CN 202223590881U CN 219158947 U CN219158947 U CN 219158947U
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- expansion
- expansion sleeve
- casing
- sleeve
- sleeve pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model relates to a reinforcing tool for casing repairing, which belongs to the technical field of expansion casings, wherein the expansion casing is a hollow cavity, three groups of bulges are symmetrically arranged on the outer side surfaces of the left end and the right end of the expansion casing, internal threads are arranged on the bulges, the left end of the expansion casing is provided with a left casing through threads, the left casing is a hollow cavity, and a left support ring is fixed on one side surface of the bulge ring and is in threaded connection with the bulges on the outer side surface of the expansion casing through three groups of long support screws; the right end of the expansion sleeve is provided with a right sleeve pipe through threads, a right support ring is fixed on one side surface of the protruding ring and is in threaded connection with the protrusions on the outer side surface of the expansion sleeve pipe through three groups of short support screws, the left sleeve pipe, the expansion sleeve pipe and the right sleeve pipe are connected to a piston cylinder, a piston pull rod in the piston cylinder is pressed into a well pipe downwards, the piston pull rod is driven downwards by a drill rod, the expansion sleeve pipe is in butt joint with a guide pipe, and the expansion sleeve pipe is separated normally after the expansion sleeve pipe penetrates into a well, so that the repair and reinforcement operation of the deep well sleeve pipe can be smoothly realized.
Description
Technical Field
The utility model relates to a reinforcing tool for casing repair, and belongs to the technical field of expansion casings.
Background
In the development process of oil fields, the technical conditions of oil-water well casings are worse and worse due to the influences of geological activities, stratum slippage, interlayer pressure differences, block pressure differences, mudstone water absorption expansion, frequent operation construction, water injection, gas injection, corrosion and the like, the number of inwards concave, deformed, holes, cracks and dislodging of the casings is increased year by year, and particularly in the oil fields developed in the later stage of high water content, the problem of damage of the oil-water well casings is quite remarkable due to the change of stratum pressure of the oil fields along with the increase of service life of the casings. If the oil-water well is light, the oil-water well cannot be normally tested, measures such as oil return and water shutoff cannot be taken, and if the oil-water well is heavy, a large amount of oil-water wells are scrapped. The occurrence of the casing damage well seriously damages the injection and production relation of the well pattern, and has great influence on the production of the oil field.
After the casing damage well is drilled out of the channel, the hydraulic sealing reinforcement technology is matched to patch and reinforce the casing damage well section, and the hydraulic sealing reinforcement device consists of a pressure amplifier, a buffer device and a patch reinforcement device. The ground pump truck is pressed, and the amplified force is acted on the seat sealing mechanism of the reinforcement device through the force transmission system by the pressure amplifier, so that the sealing and reinforcing process is completed. After the acting force reaches a certain value, the seat sealing of the patch device is completed through the buffer mechanism, so that the patch reinforcement of the casing damage well section is realized.
The Chinese patent publication discloses a bushing plugging device for oil-water gas well, the concrete structure of which is described as an authorized bulletin No. CN216077037U, wherein a piston cylinder (6) is arranged in the middle of an inner cavity of a bushing (1), a piston pull rod (7) is arranged in the middle of an inner tube of the piston cylinder (6), a sleeve (5) is fixedly connected in the middle of the top end of the piston cylinder (6), the middle of the top end of the sleeve (5) is fixedly connected with the bottom end of a hydraulic anchor (4), a shock device (3) is arranged at the top end of the hydraulic anchor (4), a slide valve (2) is arranged at the top end of the shock device (3), a safety joint (8) is fixedly connected at the middle lower end of the piston cylinder (6), the bottom end of the safety joint (8) is fixedly connected with the top end of a rigid joint (9), the bottom end of the rigid joint (9) is fixedly connected with the top end of an elastic head (10), the bottom end of the elastic head (10) is fixedly connected with a fixed block (19), the bottom end of the fixed block (19) is fixedly connected with a nut (18), the top end of the guide tube (12) is fixedly connected with the inner end of the bushing (12), the inner end (13) is fixedly connected with the inner end of the bushing (13), the bottom of drilling rod (14) is fixed connection with the top middle part of fisher (15), the bottom middle part of fisher (15) is provided with salvage head (16). The repairing tool slide valve, the jar, the hydraulic anchor and the sleeve are connected to the piston cylinder, the piston pull rod in the piston cylinder is pressed down, the repairing tool slide valve, the jar, the hydraulic anchor and the sleeve are put into the well together with the sleeve through the safety joint, the rigid joint, the elastic expansion head and the guide pipe, the automatic extending and lowering column is driven to drive the drill rod in the sleeve, and the drill rod drives the fisher and the salvage head to be in butt joint with the guide pipe.
The plugging device for the oil-water gas well sleeve has the advantages that the plugging device is used for plugging the sleeve and the pull rod into the well at the same time, so that a lot of troubles are brought to wellhead operation, the continuous sleeve plugging operation of more than hundreds of meters is difficult to realize, and meanwhile, the guide pipe is easy to shake off and difficult to take out due to vibration. And once the guide pipe and the patch sleeve are connected together and then are deeply penetrated into the well, the guide pipe and the patch sleeve cannot be normally separated, and the expected leakage repairing effect cannot be achieved.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide a reinforcing tool for casing repairing, which is characterized in that a left pipe sleeve, an expansion sleeve and a right pipe sleeve are connected to a piston cylinder, a piston pull rod in the piston cylinder is pressed into a well pipe downwards, the piston pull rod is driven downwards by a drill rod, then the expansion sleeve is butted with a guide pipe, the expansion sleeve is separated normally after penetrating into the well, the casing repairing reinforcing operation is convenient, and the deep well casing repairing reinforcing operation can be smoothly realized.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a reinforcing tool for casing repair, characterized by: the expansion sleeve comprises an expansion sleeve 4, wherein the expansion sleeve 4 is a hollow cavity, inner side walls at the left end and the right end are provided with inner threads, the expansion sleeve 4 is symmetrically provided with three groups of bulges at the outer side surfaces at the left end and the right end, the bulges are provided with inner threads, the left end of the expansion sleeve 4 is provided with a left pipe sleeve 1 through threads, the left pipe sleeve 1 is a hollow cavity, the right end surface is externally protruded with a flange surface, the outer diameter of the right end is provided with a protruding ring and outer threads, and the left support ring 2 is fixed on one side surface of the protruding ring and is in threaded connection with the bulges at the outer side surface of the expansion sleeve 4 through three groups of long support screws 3; the right end of the expansion sleeve 4 is provided with a right pipe sleeve 7 through threads, the right pipe sleeve 7 is a hollow cavity, a flange surface is outwards protruded on the left end face, a protruding ring and external threads are arranged on the outer diameter of the left end, and a right support ring 6 is fixed on one side face of the protruding ring and is in protruding threaded connection with the outer side face of the expansion sleeve 4 through three groups of short support screws 5.
The expansion sleeve 4 is made of 50BV30 chromium vanadium steel material.
The left pipe sleeve 1, the left support ring 2, the long support screw 3, the short support screw 5, the right support ring 6 and the right pipe sleeve 7 are made of 50BV30 chromium vanadium steel, and the thickness of electroplated chromium on the surface is 3-5um.
The outer diameter of the left support ring 2 is the same as the outer diameter of the expansion sleeve 4.
The outer diameter of the right support ring 6 is the same as the outer diameter of the expansion sleeve 4.
The utility model has the beneficial effects that:
firstly, the left pipe sleeve 1, the expansion sleeve 4 and the right pipe sleeve 7 are connected to a piston cylinder, a piston pull rod in the piston cylinder is pressed into a well pipe downwards, the piston pull rod is driven downwards by a drill rod, then the expansion sleeve 4 is butted with a guide pipe, the expansion sleeve 4 is separated from the guide pipe after penetrating into the well normally, and the sleeve repairing and reinforcing operation is convenient, so that the deep well sleeve repairing and reinforcing operation can be smoothly realized.
In the fixing of the guide pipe and the expansion sleeve 4, the left pipe sleeve 1 and the right pipe sleeve 7 are fixed by the left support ring 2 and the right support ring 6 due to the vibration and knocking of the lower well, and the left support ring 2 and the right support ring 6 are convenient to take out when the vibration is generated when the flange faces are in butt joint with the guide pipe.
Drawings
Fig. 1 is a front view of a first embodiment of the present utility model.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a perspective view of fig. 1.
Fig. 4 is a front view of a second embodiment of the present utility model.
Fig. 5 is a perspective view of fig. 4.
In the figure: a left pipe sleeve 1, a left support ring 2, a long support screw 3, an expansion sleeve 4, a short support screw 5, a right support ring 6 and a right pipe sleeve 7.
Detailed Description
The technical scheme of the utility model will be clearly and completely described below:
embodiment one:
as shown in fig. 1-3, a reinforcing tool for casing repairing comprises an expansion sleeve 4, wherein the expansion sleeve 4 is a hollow cavity, inner side walls at the left end and the right end are provided with internal threads, three groups of protrusions are symmetrically arranged on the outer side surfaces of the left end and the right end of the expansion sleeve 4, the protrusions are provided with internal threads, the left end of the expansion sleeve 4 is provided with a left pipe sleeve 1 through threads, the left pipe sleeve 1 is a hollow cavity, the upper outer side of the right end is provided with a flange surface, the outer diameter of the right end is provided with a protruding ring and external threads, and a left support ring 2 is fixed on one side surface of the protruding ring and is in threaded connection with the protrusions on the outer side surface of the expansion sleeve 4 through three groups of long support screws 3; the right end of the expansion sleeve 4 is provided with a right pipe sleeve 7 through threads, the right pipe sleeve 7 is a hollow cavity, a flange surface is outwards protruded on the right end face, a protruding ring and external threads are arranged on the outer diameter of the left end, and a right support ring 6 is fixed on one side face of the protruding ring and is in protruding threaded connection with the outer side face of the expansion sleeve 4 through three groups of short support screws 5.
The expansion sleeve 4 is made of 50BV30 chromium vanadium steel material.
The left pipe sleeve 1, the left support ring 2, the long support screw 3, the short support screw 5, the right support ring 6 and the right pipe sleeve 7 are made of 50BV30 chromium vanadium steel, and the thickness of electroplated chromium on the surface is 3-5um. The hardness after heat treatment is above 60HRC (Rockwell hardness), and the wear resistance is good under specific working conditions. Has vibration and bears a certain impact load.
The outer diameter of the left support ring 2 is the same as the outer diameter of the expansion sleeve 4, and the outer diameter of the right support ring 6 is the same as the outer diameter of the expansion sleeve 4. The same outer diameter size is convenient in installation.
Embodiment two:
the appearance structure is shown in figures 4-5.
The application method of the reinforcing tool for casing repair comprises the following steps:
firstly, the left pipe sleeve 1, the expansion sleeve 4 and the right pipe sleeve 7 are connected to a piston cylinder, a piston pull rod in the piston cylinder is pressed into a well pipe downwards, the piston pull rod is driven downwards by a drill rod, then the expansion sleeve 4 is butted with a guide pipe, the expansion sleeve 4 is separated from the guide pipe after penetrating into the well normally, and the sleeve repairing and reinforcing operation is convenient, so that the deep well sleeve repairing and reinforcing operation can be smoothly realized.
In the fixing of the guide pipe and the expansion sleeve 4, the left pipe sleeve 1 and the right pipe sleeve 7 are fixed by the left support ring 2 and the right support ring 6 due to the vibration and knocking of the well, and the left support ring 2 and the right support ring 6 are convenient to take out when the vibration is generated after the flange faces are in butt joint with the guide pipe.
Claims (5)
1. A reinforcing tool for casing repair, characterized by: the expansion sleeve comprises an expansion sleeve (4), wherein the expansion sleeve (4) is a hollow cavity, inner side walls at the left end and the right end are provided with inner threads, the expansion sleeve (4) is symmetrically provided with three groups of bulges at the outer side surfaces at the left end and the right end, the bulges are provided with inner threads, the left end of the expansion sleeve (4) is provided with a left pipe sleeve (1) through threads, the left pipe sleeve (1) is a hollow cavity, the right end face is externally protruded with a flange surface, the outer diameter of the right end is provided with a protruding ring and outer threads, and the left support ring (2) is fixed on one side surface of the protruding ring and is in threaded connection with the bulges at the outer side surface of the expansion sleeve (4) through three groups of long support screws (3); the right end of the expansion sleeve (4) is provided with a right pipe sleeve (7) through threads, the right pipe sleeve (7) is a hollow cavity, a flange surface is outwards protruded on the left end face, a protruded ring and external threads are arranged on the outer diameter of the left end, and a right support ring (6) is fixed on one side face of the protruded ring and is in protruding threaded connection with the outer side face of the expansion sleeve (4) through three groups of short support screws (5).
2. A reinforcing tool for casing patch according to claim 1, wherein: the expansion sleeve (4) is made of a 50BV30 chromium vanadium steel material.
3. A reinforcing tool for casing patch according to claim 1, wherein: the left pipe sleeve (1), the left support ring (2), the long support screw (3), the short support screw (5), the right support ring (6) and the right pipe sleeve (7) are made of 50BV30 chromium vanadium steel, and the thickness of electroplated chromium on the surface is 3-5um.
4. A reinforcing tool for casing patch according to claim 2, wherein: the outer diameter of the left support ring (2) is the same as the outer diameter of the expansion sleeve (4).
5. A reinforcing tool for casing patch according to claim 2, wherein: the outer diameter of the right support ring (6) is the same as the outer diameter of the expansion sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223590881.6U CN219158947U (en) | 2022-12-28 | 2022-12-28 | Reinforcing tool for casing repairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223590881.6U CN219158947U (en) | 2022-12-28 | 2022-12-28 | Reinforcing tool for casing repairing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219158947U true CN219158947U (en) | 2023-06-09 |
Family
ID=86618847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223590881.6U Active CN219158947U (en) | 2022-12-28 | 2022-12-28 | Reinforcing tool for casing repairing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219158947U (en) |
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2022
- 2022-12-28 CN CN202223590881.6U patent/CN219158947U/en active Active
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