CN216618886U - A kind of oil casing joint with anti-corrosion function - Google Patents

Abstract

The utility model discloses an oil casing joint with an anti-corrosion function, and relates to the technical field of oil casings. The oil pipe joint comprises an oil pipe, a sleeve joint and a sliding block, wherein a plurality of slots are formed in the right side wall of the oil pipe, buffer grooves are formed in two opposite side walls of the sleeve joint, a screw rod is rotatably connected inside each buffer groove, a thread groove is formed in the right side wall of the sliding block and is in threaded fit with the screw rod, and the sliding block is in clamping fit with the slots. According to the utility model, the screw rod, the sliding block, the spring groove, the clamping block and the clamping groove are arranged, so that the casing joint and the oil conveying pipe are firmly fixed, the installation mode is simple, the threaded installation is not required, the physical strength of constructors is greatly saved, the assembly efficiency of the casing joint is improved, the structural strength and the corrosion resistance of the casing joint are improved, and the later-stage oil seepage is effectively avoided.

Description

A kind of oil casing joint with anti-corrosion function

technical field

The utility model belongs to the technical field of oil casing, in particular to an oil casing joint with anti-corrosion function.

Background technique

Oil casing is a steel pipe used to support the wall of oil and gas wells to ensure the normal operation of the entire oil well after drilling and completion. Several layers of casing are used for each well according to different drilling depths and geological conditions. Cement cementing should be used after the casing is run down the well. It is different from tubing and drill pipe and cannot be reused. It is a one-time consumable material.

The inner wall of the existing oil casing is easy to rot after long-term use, resulting in oil seepage, and the early casing is usually assembled by threaded installation, and the casing joint has a large torque, which is inconvenient for construction personnel to assemble, and the installation efficiency is low; therefore, An oil casing joint with anti-corrosion function is proposed.

Utility model content

The purpose of the utility model is to provide a kind of oil casing joint with anti-corrosion function, which solves the problem that the inner wall of the existing oil casing is easy to rot after long-term use, resulting in oil seepage, and the assembly of the early casing is usually threaded. The torque is large, which is inconvenient for construction personnel to assemble, and the installation efficiency is low.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions:

The utility model relates to an oil casing joint with anti-corrosion function, which comprises an oil delivery pipe, a casing joint and a sliding block. A plurality of slots are provided on the right side wall of the oil delivery pipe, and buffers are provided on the opposite side walls of the casing joint. A screw rod is rotatably connected inside the buffer slot, a threaded groove is provided on the right side wall of the slider, the screw groove is threadedly matched with the screw rod, and the slider is snap-fitted with the slot.

The upper surface of the slot is provided with a card slot, the upper surface of the slider is provided with a spring groove, the inner surface of the spring groove is connected with a return spring, one end of the return spring is connected with a card block, and the card block is connected to the card groove. Card fit.

A rotation groove is formed inside the sleeve joint, the screw rod extends to the inside of the rotation groove, and a driven tooth is installed at one end of the screw rod.

A rotating shaft is rotatably connected to the inner surface of the rotating groove, one end of the rotating shaft is mounted with a driving tooth, and the driving tooth is engaged with the driven tooth.

The other end of the rotating shaft is fixedly connected with a knob. When assembling between the casing joint and the oil pipeline, the slider is inserted into the slot. Due to the high pressure on the inner wall of the oil pipeline, the slider cannot be easily inserted into the slot, and the rotation Knob, the knob drives the driving tooth to rotate, the driving tooth drives the driven tooth and the screw to rotate, and the screw cooperates with the slider to push the slider into the bottom of the slot. The clamping block is inserted into the clamping groove, so that the casing joint and the oil pipeline are firmly fixed. The installation method is simple, and there is no need to use threaded installation, which greatly saves the physical strength of the construction personnel and improves the efficiency of the casing joint assembly.

The inner surface of the buffer groove is provided with a buffer pad, the right side wall of the oil pipeline is provided with a ring groove, the inner side wall of the casing joint is fixedly connected with an anti-corrosion snap ring, the anti-corrosion snap ring is snap-fitted with the ring groove, and the anti-corrosion snap ring is clamped. The ring-fit ring groove improves the connection between the casing joint and the oil pipeline, and the anti-corrosion snap ring improves the structural strength and anti-corrosion of the casing joint, making the casing joint more durable and effectively preventing oil seepage in the later stage.

The anti-corrosion snap ring is provided with sealing gaskets on opposite two side walls, and the casing joint is provided with sealing rings on both opposite side walls, and the sealing gasket and the sealing ring further improve the sealing effect of the casing joint.

The utility model has the following beneficial effects:

The utility model is provided with a screw rod, a sliding block, a spring groove, a clamping block and a clamping groove, so that the casing joint and the oil conveying pipe are firmly fixed, the installation method is simple, and the thread installation is not required, which greatly saves the physical strength of the construction personnel, and improves the The assembly efficiency of the casing joint is improved; by setting the anti-corrosion snap ring and the ring groove, the connection between the casing joint and the oil pipeline is improved, and the anti-corrosion snap ring improves the structural strength and anti-corrosion of the casing joint. It is more durable and can effectively avoid oil leakage in the later stage; by setting the sealing gasket and the sealing ring, the sealing effect of the casing joint is further improved.

Of course, any product implementing the present invention does not necessarily need to simultaneously achieve all of the above-mentioned advantages.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is a kind of isometric side three-dimensional structure schematic diagram of a petroleum casing joint with anti-corrosion function;

Fig. 2 is a kind of top view structure schematic diagram of the petroleum casing joint with anti-corrosion function;

Fig. 3 is A-A sectional structure schematic diagram in Fig. 2;

Fig. 4 is a partial enlarged view of part B in Fig. 3;

FIG. 5 is a schematic diagram of the right side three-dimensional structure of a petroleum casing joint with anti-corrosion function.

In the drawings, the list of components represented by each number is as follows: 1. Oil pipeline; 2. Casing joint; 3. Ring groove; 4. Anti-corrosion snap ring; 5. Gasket; Driving tooth; 9, knob; 10, buffer groove; 11, buffer pad; 12, screw rod; 13, driven tooth; 14, slider; 1401, thread groove; 15, slot; 16, spring groove; 17, Return spring; 18, block; 19, card slot; 20, sealing ring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "up", "middle", "outside", "inside", etc. indicate orientation or positional relationships, and are only for the convenience of describing the present invention and simplifying the description, rather than It is indicated or implied that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Please refer to FIGS. 1-5. The utility model is an oil casing joint with anti-corrosion function, comprising an oil pipeline 1, a casing joint 2 and a sliding block 14. A number of slots 15 are provided on the right side wall of the oil pipeline 1. The opposite side walls of the pipe joint 2 are provided with buffer grooves 10. The buffer groove 10 is rotatably connected with a screw rod 12. The right side wall of the slider 14 is provided with a threaded groove 1401. The threaded groove 1401 is threaded with the screw rod 12. Fitted with slot 15.

The upper surface of the slot 15 is provided with a card slot 19, the upper surface of the slider 14 is provided with a spring slot 16, the inner surface of the spring slot 16 is connected with a return spring 17, and one end of the return spring 17 is connected with a clamping block 18, the clamping block 18 and the clamping slot 19 Card fit.

A rotation slot 6 is formed inside the casing joint 2 , the screw rod 12 extends into the inside of the rotation slot 6 , and a driven tooth 13 is installed at one end of the screw rod 12 .

A rotating shaft 7 is rotatably connected to the inner surface of the rotating slot 6 . One end of the rotating shaft 7 is provided with a driving tooth 8 , and the driving tooth 8 is engaged with the driven tooth 13 .

The other end of the rotating shaft 7 is fixedly connected with a knob 9. When assembling between the casing joint 2 and the oil pipeline 1, the slider 14 is inserted into the slot 15. Due to the high pressure on the inner wall of the oil pipeline 1, the slider 14 cannot be easily stuck. into the slot 15, rotate the knob 9, the knob 9 drives the driving tooth 8 to rotate, the driving tooth 8 drives the driven tooth 13 and the screw rod 12 to rotate, the screw rod 12 cooperates with the slider 14, and pushes the slider 14 into the bottom of the slot 15 Whenever the slider 14 reaches the bottom of the slot 15, the return spring 17 ejects the clamping block 18, and the clamping block 18 is inserted into the clamping slot 19, so that the casing joint 2 and the oil pipeline 1 are firmly fixed, and the installation method is simple, and no thread is required. The installation greatly saves the physical strength of the construction personnel and improves the assembly efficiency of the casing joint 2 .

The inner surface of the buffer tank 10 is provided with a buffer pad 11, the right side wall of the oil pipeline 1 is provided with a ring groove 3, the inner side wall of the casing joint 2 is fixedly connected with an anti-corrosion snap ring 4, and the anti-corrosion snap ring 4 is snap-fitted with the ring groove 3, and the anti-corrosion snap ring The ring 4 cooperates with the ring groove 3 to improve the connection between the casing joint 2 and the oil pipeline 1. At the same time, the anti-corrosion snap ring 4 improves the structural strength and anti-corrosion of the casing joint 2, making the casing joint 2 more durable and effectively avoiding the later stage. Oil seeps.

The opposite side walls of the anti-corrosion snap ring 4 are provided with sealing gaskets 5 , and the opposite two side walls of the casing joint 2 are provided with sealing rings 20 , and the sealing gasket 5 and the sealing ring 20 further improve the sealing effect of the casing joint 2 .

As shown in Figures 1-5, this embodiment is a method of using an oil casing joint with anti-corrosion function: when it is necessary to assemble the casing joint 2 and the oil pipeline 1, the slider 14 is inserted into the slot 15 , Due to the high pressure on the inner wall of the oil delivery pipe 1, the slider 14 cannot be easily inserted into the slot 15. When the knob 9 is rotated, the knob 9 drives the driving tooth 8 to rotate, and the driving tooth 8 drives the driven tooth 13 and the screw rod 12 to rotate, and the screw rod 12 rotates. Cooperate with the slider 14, and push the slider 14 into the bottom of the slot 15. Whenever the slider 14 reaches the bottom of the slot 15, the return spring 17 ejects the block 18, and the block 18 is inserted into the slot 19, so that the sleeve joint 2 It is firmly fixed with the oil pipeline 1, and the anti-corrosion snap ring 4 is snap-fitted with the ring groove 3. The anti-corrosion snap ring 4 cooperates with the ring groove 3 to improve the connection between the casing joint 2 and the oil pipeline 1. At the same time, the anti-corrosion snap ring 4 improves the sleeve. The structural strength and corrosion resistance of the pipe joint 2 make the casing joint 2 more durable, and the sealing gasket 5 and the sealing ring 20 further improve the sealing effect of the casing joint 2 .

In the description of this specification, description with reference to the terms "one embodiment", "example", "specific example", etc. means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention. in at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details, nor do they limit the invention to only the described embodiments. Obviously, many modifications and variations are possible in light of the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The utility model provides a petroleum casing joint with anticorrosive function, includes defeated oil pipe (1), casing joint (2) and slider (14), its characterized in that: a plurality of slots (15) have been seted up to defeated oil pipe (1) right side wall, dashpot (10) have all been seted up to the relative both sides wall of casing joint (2), dashpot (10) inside rotation is connected with lead screw (12), thread groove (1401) have been seted up to slider (14) right side wall, thread groove (1401) and lead screw (12) screw-thread fit, slider (14) clamp the cooperation with slot (15).

2. The petroleum casing joint with the anticorrosion function as recited in claim 1, wherein a clamping groove (19) is formed in an upper surface of the insertion groove (15), a spring groove (16) is formed in an upper surface of the slider (14), a return spring (17) is connected to an inner surface of the spring groove (16), a clamping block (18) is connected to one end of the return spring (17), and the clamping block (18) is in clamping fit with the clamping groove (19).

3. A petroleum casing joint with an anticorrosion function as defined in claim 1, wherein a rotary groove (6) is formed in the casing joint (2), the screw rod (12) extends into the rotary groove (6), and a driven tooth (13) is mounted at one end of the screw rod (12).

4. A petroleum casing joint with corrosion prevention function according to claim 3, characterized in that a rotating shaft (7) is rotatably connected to the inner surface of the rotating groove (6), a driving tooth (8) is installed at one end of the rotating shaft (7), and the driving tooth (8) is meshed with a driven tooth (13).

5. A petroleum casing joint with corrosion prevention function according to claim 4, characterized in that the other end of the rotating shaft (7) is fixedly connected with a knob (9).

6. The petroleum casing joint with the anticorrosion function as recited in claim 1, wherein the buffer pad (11) is arranged on the inner surface of the buffer groove (10), the ring groove (3) is formed in the right side wall of the petroleum pipeline (1), the anticorrosion snap ring (4) is fixedly connected to the inner side wall of the casing joint (2), and the anticorrosion snap ring (4) is in clamping fit with the ring groove (3).

7. A petroleum casing joint with corrosion prevention function according to claim 6, characterized in that two opposite side walls of the corrosion prevention snap ring (4) are provided with sealing gaskets (5), and two opposite side walls of the casing joint (2) are provided with sealing rings (20).

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