Electric hydraulic setting device special for oil and gas well

Abstract

The utility model relates to the technical field of oil and gas well setting, and discloses an electric hydraulic setting device special for an oil and gas well, which comprises a rubber sleeve, cones are fixedly connected to the outer walls of the two ends of the rubber sleeve, conical shells are fixedly connected to the outer walls of the cones on the two sides, and locking sleeves are fixedly connected to the sides, away from the cones, of the conical shells on the two sides. A plurality of first staggered grooves are evenly formed in the peripheries of the outer walls of the conical shells on the two sides, a plurality of second staggered grooves are formed in the peripheries of the outer walls of the locking sleeves on the two sides, the first staggered grooves and the second staggered grooves are arranged in a staggered mode, connectors are fixedly connected to one ends of the opposite faces of the locking sleeves on the two sides, and threaded sleeves are fixedly connected to the ends, away from the locking sleeves, of the connectors on the two sides. The whole bridge plug seat sealing structure is provided with the tightly-connected staggered structures for connection, the tightness of the whole structure is guaranteed, the tightly-connected staggered structures can reduce the gap between the bridge plug and the well wall, the sealing effect is enhanced, oil gas leakage is prevented, and the stability of the pressure in the well is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas well setting technology, specifically to a special electric hydraulic setting device for oil and gas wells. Background Art

[0002] The specialized electro-hydraulic setting device for oil and gas wells is a piece of equipment used in oil and gas well operations. It is mainly used for sealing operations within the wellbore to prevent oil and gas leakage and uncontrolled well pressure. The bridge plug acts as a sealing layer in oil and gas wells, featuring fewer construction steps, shorter cycle, and accurate sealing position. Its principle is to use a cable or tubing string to deliver it to a predetermined position in the wellbore. Pressure generated by explosive detonation, hydraulic setting, or mechanical setting tools acts on the upper slips, and tension acts on the tension rod. The upper and lower cones apply both pressure and tension to the sealing rubber sleeve. When the tension reaches a certain value, the tension rod breaks, and the setting tool disengages from the bridge plug. At this time, the locking device on the central tube of the bridge plug takes effect, the upper and lower slips break and embed into the inner wall of the casing, and the rubber sleeve expands and seals, completing the setting.

[0003] In existing technologies, the sealing performance of oil and gas well bridge plug setting devices will gradually be affected as the service time increases. Poor sealing performance may lead to gas and liquid leakage in oil and gas wells. Such leakage will not only waste resources, but may also cause serious safety accidents, such as explosions and fires, posing a significant threat to personnel and equipment. When leakage occurs, the production process may need to be forced to stop in order to repair and replace equipment, resulting in extended production time and increased production costs. Leakage in oil and gas wells may also cause serious environmental pollution.

[0004] To address this, a dedicated electric hydraulic setting device for oil and gas wells is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a dedicated electro-hydraulic setting device for oil and gas wells to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special electric hydraulic setting device for oil and gas wells, comprising a rubber cylinder, with cones fixedly connected to the outer walls of both ends of the rubber cylinder, and cone shells fixedly connected to the outer walls of both sides of the cones, with locking sleeves fixedly connected to the side of both sides of the cone shells away from the cones, and several misalignment grooves I evenly formed around the outer walls of both sides of the cone shells, and several misalignment grooves II formed around the outer walls of both sides of the locking sleeves, the misalignment grooves I and II being staggered, and a connector fixedly connected to one end of the opposite side of both sides of the locking sleeves, with threaded sleeves fixedly connected to the end of both sides of the connectors away from the locking sleeves.

[0007] Preferably, an outer sleeve is fixedly connected to the outer wall of one side of the threaded sleeve, and a fastener is fixedly connected to the outer wall of the other side of the threaded sleeve.

[0008] Preferably, the inner wall of the fastener is provided with a fastening block.

[0009] Preferably, the fastening block is fixedly connected to the inner wall of the outer sleeve by an inner sleeve, and a limit sleeve is fixedly connected to the upper part of the inner wall of the inner sleeve.

[0010] Preferably, an electro-hydraulic rod is fixedly connected to the bottom of the limiting sleeve.

[0011] Preferably, the end of the electro-hydraulic rod away from the limiting sleeve is fixedly connected to a threaded shaft.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By setting up a tightly connected staggered structure for the overall bridge plug seat structure, the overall structure is guaranteed to be tight. The tightly connected staggered structure can reduce the gap between the bridge plug and the well wall, enhance the sealing effect, prevent oil and gas leakage, ensure the stability of the well pressure, and make the stress distribution of the overall structure more uniform. It can withstand higher downhole pressure and impact force, reduce the risk of structural failure, and the staggered structure can effectively absorb and disperse the vibration generated during downhole operations, reduce the impact on the bridge plug, and extend the service life of the equipment.

[0014] 2. The tight overall structure effectively prevents safety accidents such as well blowouts, protecting the safety of operators and equipment. The tightly connected design makes the installation and disassembly of the bridge plug more convenient, reducing operation time, reducing direct contact between corrosive media and the bridge plug, and enhancing its corrosion resistance. The staggered structure can improve the flow characteristics of fluid around the bridge plug, reduce flow resistance, improve oil and gas recovery efficiency, adapt to different types of oil and gas wells and complex downhole environments, and enhance the versatility of the equipment. The tight connection and staggered design of the overall bridge plug setting structure can significantly improve the setting effect of oil and gas wells, ensuring the safety and efficiency of operations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a vertical cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram showing the disassembled state of some parts of the structure of this utility model;

[0018] Figure 4 This is a horizontal cross-sectional view of the overall structure of this utility model.

[0019] In the picture:

[0020] 1. Inner sleeve; 2. Limiting sleeve; 3. Electro-hydraulic rod; 4. Threaded shaft; 5. Rubber sleeve; 6. Cone; 7. Conical shell; 8. Locking sleeve; 9. Connector; 10. Threaded sleeve; 11. Outer sleeve; 12. Fastening connector; 13. Fastening block; 14. Misalignment groove one; 15. Misalignment groove two. DETAILED DESCRIPTION

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 An embodiment of this utility model is provided: an electric hydraulic setting device for oil and gas wells, including a rubber cylinder 5. Cones 6 are fixedly connected to the outer walls of both ends of the rubber cylinder 5. Conical shells 7 are fixedly connected to the outer walls of both sides of the cones 6. Locking sleeves 8 are fixedly connected to the side of both sides of the cone shells 7 away from the cones 6. Several misaligned grooves 14 are evenly opened around the outer walls of both sides of the cone shells 7. Several misaligned grooves 15 are opened around the outer walls of both sides of the locking sleeves 8. The misaligned grooves 14 and 15 are staggered. Connecting heads 9 are fixedly connected to the opposite ends of both sides of the locking sleeves 8. Threaded sleeves 10 are fixedly connected to the ends of both sides of the connecting heads 9 away from the locking sleeves 8.

[0023] Wherein: the cone 6 is hollow and matches the shape of the outer wall of the rubber tube 5;

[0024] Even better: During the setting and sealing process of the oil and gas well, by rotating the threaded sleeves 10 on both sides, the connectors 9 on both sides can be tightly fastened to the outer walls of the locking sleeves 8 on both sides. Then, the cones 6 are clamped by the cone shells 7 on both sides. At the same time, with the cooperation of the first misalignment groove 14 and the second misalignment groove 15, the tightness of the fit between the cone shell 7 and the locking sleeve 8 is ensured. The rubber sleeve 5 located in the middle of the cones 6 on both sides expands and plugs into the inside of the tubing, achieving the effect of sealing the tubing.

[0025] An outer sleeve 11 is fixedly connected to the outer wall of one side of the threaded sleeve 10, and a snap-fit ​​connector 12 is fixedly connected to the outer wall of the other side of the threaded sleeve 10. A snap-fit ​​block 13 is snapped into the inner wall of the snap-fit ​​connector 12. An inner sleeve 1 is fixedly connected to the inner wall of the outer sleeve 11 and the snap-fit ​​block 13. A limit sleeve 2 is fixedly connected to the upper part of the inner wall of the inner sleeve 1. An electric hydraulic rod 3 is fixedly connected to the bottom of the limit sleeve 2. A threaded shaft 4 is fixedly connected to the end of the electric hydraulic rod 3 away from the limit sleeve 2.

[0026] Wherein: the fastening block 13 is set in a convex shape and matches the cross-sectional shape of the inner wall of the fastening connector 12;

[0027] Even better: the outer sleeve 11 is fixedly connected to the upper threaded sleeve 10 to ensure the sealing of the connection process. After the snap-fit ​​block 13 is inserted into the inside of the snap-fit ​​connector 12, the threaded shaft 4 and the electric hydraulic rod 3 can form a whole, which is convenient for driving extension or retraction during operation, thereby making the setting and sealing treatment of oil and gas wells more perfect.

[0028] The working principle of the above implementation is as follows:

[0029] The operation steps are as follows:

[0030] Firstly, during the setting process of an oil and gas well, rotating the threaded sleeves 10 on both sides allows the connecting heads 9 on both sides to be tightly fastened to the outer walls of the locking sleeves 8 on both sides. Then, the cones 6 are clamped by the cone shells 7 on both sides. Simultaneously, the cooperation of the misalignment grooves 14 and 15 ensures the tightness of the fit between the cone shells 7 and the locking sleeves 8. This tight overall structure effectively prevents well blowouts and other safety accidents, protecting the safety of personnel and equipment. The tightly connected design makes the installation and removal of the bridge plug more convenient, reducing operation time, reducing direct contact between corrosive media and the bridge plug, and enhancing its corrosion resistance. The misaligned structure improves the flow characteristics of fluid around the bridge plug, reduces flow resistance, and increases oil and gas recovery efficiency. It adapts to different types of oil and gas wells and complex downhole environments, enhancing the versatility of the equipment. The tight connection and misaligned design of the overall bridge plug setting structure significantly improves the setting effect of oil and gas wells, ensuring the safety and efficiency of operations. The rubber sleeve 5, located between the two conical sections 6, expands and plugs into the tubing to achieve a sealing effect. The outer sleeve 11 is fixedly connected to the upper threaded sleeve 10 to ensure the sealing during the connection process. After the snap-fit ​​block 13 is inserted into the snap-fit ​​connector 12, the threaded shaft 4 and the electric hydraulic rod 3 form a whole, facilitating drive extension or retraction during operation. This further improves the setting and sealing of the oil and gas well. The overall bridge plug setting structure is connected by a tightly connected misaligned structure to ensure the overall structure's tightness. The tightly connected misaligned structure reduces the gap between the bridge plug and the well wall, enhances the sealing effect, prevents oil and gas leakage, ensures stable well pressure, and makes the overall structure more uniformly stressed. It can withstand higher downhole pressure and impact, reducing the risk of structural failure. The misaligned structure can effectively absorb and disperse vibrations generated during downhole operations, reduce the impact on the bridge plug, and extend the service life of the equipment.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dedicated electro-hydraulic setting device for oil and gas wells, characterized in that: The device includes a rubber tube (5), with cones (6) fixedly connected to the outer walls of both ends of the rubber tube (5). Conical shells (7) are fixedly connected to the outer walls of the cones (6) on both sides. Locking sleeves (8) are fixedly connected to the side of the cone shells (7) away from the cones (6). Several misaligned grooves (14) are evenly opened around the outer walls of the cone shells (7) on both sides. Several misaligned grooves (15) are opened around the outer walls of the locking sleeves (8) on both sides. The misaligned grooves (14) and the misaligned grooves (15) are staggered. Connectors (9) are fixedly connected to the opposite end of the locking sleeves (8) on both sides. Threaded sleeves (10) are fixedly connected to the end of the connectors (9) away from the locking sleeves (8) on both sides.

2. The electro-hydraulic setting device for oil and gas wells according to claim 1, characterized in that: An outer sleeve (11) is fixedly connected to the outer wall of the threaded sleeve (10) on one side, and a fastener (12) is fixedly connected to the outer wall of the threaded sleeve (10) on the other side.

3. The electro-hydraulic setting device for oil and gas wells according to claim 2, characterized in that: The inner wall of the fastener (12) is fitted with a fastening block (13).

4. The electro-hydraulic setting device for oil and gas wells according to claim 3, characterized in that: The fastening block (13) is fixedly connected to the inner wall of the outer sleeve (11) by an inner sleeve (1), and a limit sleeve (2) is fixedly connected above the inner wall of the inner sleeve (1).

5. The electro-hydraulic setting device for oil and gas wells according to claim 4, characterized in that: The bottom of the limiting sleeve (2) is fixedly connected to an electric hydraulic rod (3).

6. The electro-hydraulic setting device for oil and gas wells according to claim 5, characterized in that: The end of the electric hydraulic rod (3) away from the limiting sleeve (2) is fixedly connected to a threaded shaft (4).

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