CN219220358U

CN219220358U - Self-sealing type safety packer for oil field

Info

Publication number: CN219220358U
Application number: CN202223469896.7U
Authority: CN
Inventors: 张景柱; 张文喆; 张利
Original assignee: Dongying Shengjing Petroleum Equipment Co ltd
Current assignee: Dongying Shengjing Petroleum Equipment Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-20
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a self-sealing type safety packer for an oil field, which belongs to the technical field of safety packers and aims at solving the problem that loose connection parts between flanges of pipelines at two sides of the safety packer and flanges of connecting pipelines are easy to leak and pollute the soil in the long-term use process; the utility model avoids the occurrence of leakage of the first flange and the second flange at the adjacent position after being fixed for a period of time, thereby improving the practicability of the device.

Description

Self-sealing type safety packer for oil field

Technical Field

The utility model belongs to the technical field of safety packers, and particularly relates to a self-sealing type safety packer for an oil field.

Background

In order to ensure safe production, the oil pipe with higher compression resistance is adopted during the exploitation of the high-pressure oil gas well, the annular space of the oil pipe and the sleeve is sealed by using the packer, the packer is selected reliably in the development process of the high-pressure oil gas well, the post treatment is simple, the treatment of the packer is simple, the large-scale production increase reconstruction measures are met, the ground pollution caused by well repair is prevented, the ground environment pollution is prevented, the well repair cost is reduced, and the construction is safe and reliable.

The flanges of the pipelines at the two sides of the safety packer and the flanges of the pipelines at the two sides of the connecting pipeline are often fixed through the threaded connecting piece, however, in the long-term use process, after loosening is caused by rusting of the surfaces of the threaded connecting piece, the connection between the flanges of the pipelines at the two sides of the safety packer and the flanges of the connecting pipeline is easy to loosen, so that the connection part of the flanges of the pipelines at the two sides of the safety packer and the flanges of the connecting pipeline is easy to leak, the land is polluted, and the use is inconvenient

Therefore, a self-sealing type safety packer for oil fields is needed, and the problems that in the prior art, loose connection parts are easy to leak and pollution is caused to the land when the flanges of pipelines on two sides of the safety packer are connected with the flanges of connecting pipelines in the long-term use process are solved.

Disclosure of Invention

The utility model aims to provide a self-sealing type safety packer for an oil field, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a self-sealing type oil field is with safe packer, includes the packer body, the both sides of packer body are fixed with first flange, the both sides symmetry of packer body is provided with connecting tube, one side that connecting tube is close to the packer body is fixed with the second flange, first flange is laminated mutually with adjacent position second flange, the both ends symmetric distribution of first flange and adjacent position second flange laminating department has the seal cover, the internal surface of seal cover is laminated mutually with adjacent position first flange and the outer peripheral face of second flange, and the surface symmetry at both ends runs through about two adjacent position seal covers is inserted and is equipped with two second threaded rods, the both ends threaded connection of second threaded rod outer peripheral face has the tight cover, and the one end that two adjacent position tight covers are close to each other is inconsistent with the surface of adjacent position seal cover, the surface equidistance of seal cover both sides is encircleed and is set up two sets of symmetric distribution's reinforcement groove, the both sides of seal cover are provided with the lantern ring, the fixed with the inserted bar that is the equidistance and encircle the setting, the inside of the reinforcement groove of one side extension adjacent position and the reinforcement groove is inconsistent with adjacent position.

In the scheme, two ends of the connecting pipeline and two ends of the two side surfaces of the packer body are symmetrically fixed with two fixing blocks, two sides of the sleeve ring are connected with a first threaded rod in a penetrating threaded manner, and one side of the first threaded rod penetrates through the fixing blocks at adjacent positions and is in rotary connection with the inner walls of the fixing blocks at the adjacent positions.

It is further worth to say that the surface at the two ends of the first flange and the second flange at the adjacent position is inserted with a positioning rod, and two sides of the positioning rod penetrate through the fixing blocks at the adjacent positions and extend out of the fixing blocks.

It should be further noted that the two ends of the outer peripheral surfaces of the first flange and the second flange are fixed with fixing pieces, and the inner surface of the sealing sleeve is provided with clamping grooves at positions close to the fixing pieces at adjacent positions.

As a preferable implementation mode, the outer peripheral surface of the fixing piece is abutted against the inner wall of the clamping groove at the adjacent position, and the two groups of clamping grooves are arranged at the opposite positions of the two ends of the inner surface of the sealing sleeve by taking the central line of the side surface of the sleeve ring in the vertical direction as a symmetrical axis.

As a preferred embodiment, the diameter of the surface of the side of the first threaded rod, which is close to each other, of the two adjacent positions at the same end is larger than the diameter of the surface of the side of the first threaded rod, which is far away from each other, and the surface of the side of the first threaded rod, which is close to each other, of the two adjacent positions at the same end is abutted against the surface of the side of the sealing sleeve at the adjacent positions.

Compared with the prior art, the self-sealing type safety packer for the oil field provided by the utility model at least comprises the following beneficial effects:

(1) The sealing sleeve wraps the joint between the first flange and the second flange, and the sealing sleeve is in a fixed state by the connection between the second threaded rod and the fastening sleeve and the extension of the inserted rod to the inside of the adjacent position reinforcing groove, so that the connection between the first flange and the adjacent position second flange is further sealed, leakage of the first flange and the adjacent position second flange after the first flange and the adjacent position second flange are used for a period of time after the first flange and the adjacent position second flange are fixed is avoided, and the practicability of the device is improved.

(2) Through the seal cover when the installation through the inside with the stationary blade extension to adjacent position draw-in groove to can play the fixed action to the installation of seal cover, and can avoid appearing rocking the condition emergence when the seal cover is installed, when connecting first flange and second flange through the bolt fastening piece simultaneously, pass the locating lever fixed block and pass inside the screw on first flange and connecting tube flange surface, thereby both take place because the condition of external force skew when avoiding through bolt fastening first flange and second flange, thereby further improved the practicality of the device.

Drawings

FIG. 1 is a schematic perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial structural explosion of the three-dimensional structure of the present utility model;

FIG. 3 is a schematic perspective view of a partial structure of the present utility model;

fig. 4 is a schematic cross-sectional view of a partial structure of the present utility model.

In the figure: 1. a packer body; 2. a first flange; 3. a connecting pipe; 4. a second flange; 5. sealing sleeve; 6. a fixed block; 7. a first threaded rod; 8. a collar; 9. a rod; 10. a reinforcing groove; 11. a second threaded rod; 12. a fastening sleeve; 13. a positioning rod; 14. a clamping groove; 15. and a fixing piece.

Detailed Description

Referring to fig. 1-4, the utility model provides a self-sealing type safety packer for an oil field, which comprises a packer body 1, wherein two sides of the packer body 1 are fixedly provided with a first flange 2, two sides of the packer body 1 are symmetrically provided with connecting pipelines 3, one side of each connecting pipeline 3, which is close to the packer body 1, is fixedly provided with a second flange 4, the first flange 2 is jointed with the second flange 4 at the adjacent position, sealing sleeves 5 are symmetrically distributed at two ends of the joint of the first flange 2 and the second flange 4 at the adjacent position, the inner surfaces of the sealing sleeves 5 are jointed with the outer peripheral surfaces of the first flange 2 and the second flange 4 at the adjacent position, two threaded rods 11 are symmetrically inserted through the surfaces of the upper end and the lower end of each sealing sleeve 5 at the adjacent position, two ends of the threaded rods 11 are in threaded connection with fastening sleeves 12, one end, which is close to each other, of the sealing sleeves 5 at the adjacent positions is in contact with the surface of each other, two groups of symmetrically distributed fastening grooves 10 are formed by equidistantly encircling the surfaces of the two sides of the sealing sleeves 5, inserted rods 9 are fixedly arranged on one side of the sealing sleeves 8, one side of the inserted rods 9 extends from one side of the fastening grooves 10 to the adjacent positions and is in contact with the inner walls of the adjacent flanges 10, and is further connected with the adjacent flanges 2 through the fastening sleeves 10, and the adjacent flanges 2 are connected with the adjacent flanges through the two threaded rods and the adjacent flanges 2 at the adjacent positions.

Further, as shown in fig. 1 and 3, it is worth specifically explaining that two fixing blocks 6 are symmetrically fixed at two ends of the connecting pipeline 3 and two end positions of two side surfaces of the packer body 1, two sides of the collar 8 are connected with first threaded rods 7 through threads, one side of each first threaded rod 7 penetrates through the adjacent position fixing block 6 and is in rotary connection with the inner wall of the adjacent position fixing block 6, and the collar 8 can displace in the horizontal direction under the cooperation effect between the internal thread structure of the inner wall and the external thread structure of the outer peripheral surface of the adjacent position first threaded rod 7 by sequentially rotating the two groups of first threaded rods 7.

Further, as shown in fig. 1, it is worth specifically explaining that the surfaces of the two ends of the first flange 2 and the second flange 4 at the adjacent positions are inserted with positioning rods 13, two sides of each positioning rod 13 pass through the adjacent position fixing blocks 6 and extend out of the fixing blocks 6, when the first flange 2 and the second flange 4 are connected through the bolt fixing pieces, the positioning rods 13 pass through the fixing blocks 6 and pass through the inside of screw holes on the flange surfaces of the first flange 2 and the connecting pipeline 3, so that the situation that the first flange 2 and the second flange 4 are offset due to external force when the first flange 2 and the second flange 4 are fixed through bolts is avoided.

Further, as shown in fig. 4, it is worth specifically explaining that the two ends of the outer peripheral surfaces of the first flange 2 and the second flange 4 are fixed with fixing pieces 15, the position of the inner surface of the sealing sleeve 5 close to the fixing pieces 15 at the adjacent positions is provided with a clamping groove 14, the outer peripheral surface of the fixing piece 15 is in contact with the inner wall of the clamping groove 14 at the adjacent positions, two groups of clamping grooves 14 are arranged at the opposite positions of the two ends of the inner surface of the sealing sleeve 5 by taking the central line of the side surface of the lantern ring 8 as a symmetrical axis, and the fixing pieces 15 are extended to the inner parts of the clamping grooves 14 at the adjacent positions during installation of the sealing sleeve 5, so that the installation of the sealing sleeve 5 can be fixed, and shaking conditions during installation of the sealing sleeve 5 can be avoided.

The scheme comprises the following working processes: in the actual use process, when a user needs to connect the packer body 1 with two connecting pipelines 3, the second flange 4 on one side of the connecting pipeline 3 is attached to the surfaces of the first flanges 2 at the adjacent positions, the two groups of screw holes are communicated, then the two fixing blocks 6 sequentially pass through the positioning rods 13 and pass through the inside of the screw holes communicated with the two first flanges 2 and the second flanges 4 at the adjacent positions, so that the first flanges 2 and the second flanges 4 at the adjacent positions are fixed through bolts, the positioning effect is achieved to avoid deflection, then the two groups of sealing sleeves 5 sequentially wrap the joints of the first flanges 2 and the second flanges 4 at the adjacent positions, the fixing pieces 15 can extend into the clamping grooves 14 at the adjacent positions, then the two groups of second threaded rods 11 sequentially pass through the upper ends and the lower ends of the joints of the sealing sleeves 5 at the two adjacent positions, the fastening sleeve 12 is then sleeved on the surface of the second threaded rod 11 at the adjacent position through the thread structure, the fastening sleeve 12 can be abutted against the surface of the sealing sleeve 5 at the adjacent position, so that the sealing sleeve 5 can be in a fixed state, and then the first threaded rod 7 is sequentially rotated, so that the sleeve ring 8 can move along the horizontal direction under the matching action between the internal thread structure of the inner wall of the sleeve ring 8 and the external thread structure of the outer peripheral surface of the first threaded rod 7 at the adjacent position until the inserted rod 9 can extend to the inside of the reinforcing groove 10 at the adjacent position and is abutted against the inner wall of the reinforcing groove 10 at the adjacent position, so that the sealing sleeve 5 can be reinforced, and the joint of the first flange 2 and the second flange 4 at the adjacent position can be sealed through the sealing sleeve 5.

The working process can be as follows: the sealing sleeve 5 wraps the joint between the first flange 2 and the second flange 4, the sealing sleeve 5 is in a fixed state through the connection between the second threaded rod 11 and the fastening sleeve 12 and the extension of the inserting rod 9 to the inside of the adjacent position reinforcing groove 10, so that a further sealing effect is achieved on the connection between the first flange 2 and the adjacent position second flange 4, leakage of the first flange 2 and the adjacent position second flange 4 after the sealing sleeve is fixed for a period of time is avoided, practicability of the device is improved, the fixing effect on the sealing sleeve 5 is achieved through the extension of the fixing piece 15 to the inside of the adjacent position clamping groove 14 during installation, shaking of the sealing sleeve 5 during installation is avoided, and meanwhile, when the first flange 2 and the second flange 4 are connected through the bolt fixing piece, the positioning rod 13 penetrates through the fixing block 6 and penetrates through the inside of the screw holes on the flange surface of the first flange 2 and the connecting pipeline 3, external force offset of the first flange 2 and the second flange 4 during the fixing of the first flange 2 and the second flange 4 through the bolts is avoided, and practicability of the device is further improved.

Further, as shown in fig. 3, it is worth specifically explaining that the diameter of the surface of the side of the first threaded rod 7, which is close to each other, at the same end is larger than the diameter of the surface of the side of the first threaded rod 7, which is far away from each other, and the surface of the side of the first threaded rod 7, which is close to each other, at the same end is in contact with the surface of the side of the sealing sleeve 5, which is close to each other, and the shape change of the outer peripheral surface of the first threaded rod 7 makes the screw hole of the inner wall of the collar 8 under the contact action with the side of the larger diameter of the outer peripheral surface of the first threaded rod 7, thereby avoiding that the collar 8 can be separated from the surface of the first threaded rod 7 at the adjacent position.

To sum up: the sealing sleeve 5 wraps the joint between the first flange 2 and the second flange 4, the sealing sleeve 5 is in a fixed state through the connection between the second threaded rod 11 and the fastening sleeve 12 and the extension of the inserting rod 9 to the inside of the adjacent position reinforcing groove 10, so that a further sealing effect is achieved on the connection between the first flange 2 and the adjacent position second flange 4, leakage of the first flange 2 and the adjacent position second flange 4 after the sealing sleeve is fixed for a period of time is avoided, practicability of the device is improved, the fixing effect on the sealing sleeve 5 is achieved through the extension of the fixing piece 15 to the inside of the adjacent position clamping groove 14 during installation, shaking of the sealing sleeve 5 during installation is avoided, and meanwhile, when the first flange 2 and the second flange 4 are connected through the bolt fixing piece, the positioning rod 13 penetrates through the fixing block 6 and penetrates through the inside of the screw holes on the flange surface of the first flange 2 and the connecting pipeline 3, external force offset of the first flange 2 and the second flange 4 during the fixing of the first flange 2 and the second flange 4 through the bolts is avoided, and practicability of the device is further improved.

Claims

1. The utility model provides a self-sealing oil field safety packer, includes packer body (1), its characterized in that, the both sides of packer body (1) are fixed with first flange (2), the bilateral symmetry of packer body (1) is provided with connecting tube (3), one side that connecting tube (3) is close to packer body (1) is fixed with second flange (4), first flange (2) is laminated mutually with adjacent position second flange (4), the both ends symmetric distribution of first flange (2) and adjacent position second flange (4) laminating department has seal cover (5), the internal surface of seal cover (5) is laminated mutually with adjacent position first flange (2) and the outer peripheral face of second flange (4), the surface symmetry of two adjacent position seal cover (5) upper and lower both ends runs through and inserts and be equipped with two second (11), the both ends threaded connection of second threaded rod (11) outer peripheral face has fastening sleeve (12), the one end that two adjacent positions fastening sleeve (12) are close to each other is inconsistent with the surface of adjacent position second flange (4), seal cover (5) both ends symmetric distribution has seal cover (8) to be the equidistant setting up of seal cover (8) around two sides of seal cover (8), one side of the inserted link (9) extends into the adjacent position reinforcing groove (10) and is abutted against the inner wall of the adjacent position reinforcing groove (10).

2. The self-sealing oilfield safety packer of claim 1, wherein: two ends of the connecting pipeline (3) and two end positions of the two side surfaces of the packer body (1) are symmetrically fixed with two fixing blocks (6), two sides of the sleeve ring (8) are connected with a first threaded rod (7) through threads, and one side of the first threaded rod (7) penetrates through the fixing blocks (6) at adjacent positions and is in rotary connection with the inner wall of the fixing blocks (6) at adjacent positions.

3. The self-sealing oilfield safety packer of claim 2, wherein: the positioning rods (13) are inserted into the surfaces of the two ends of the first flange (2) and the second flange (4) at the adjacent positions, and two sides of each positioning rod (13) penetrate through the adjacent position fixing blocks (6) and extend out of the fixing blocks (6).

4. The self-sealing oilfield safety packer of claim 1, wherein: fixing sheets (15) are fixed at two ends of the outer peripheral surfaces of the first flange (2) and the second flange (4), and clamping grooves (14) are formed in the inner surface of the sealing sleeve (5) at positions close to the fixing sheets (15) at adjacent positions.

5. The self-sealing oilfield safety packer of claim 4, wherein: the outer peripheral surface of the fixing piece (15) is abutted against the inner wall of the clamping groove (14) at the adjacent position, and the two groups of clamping grooves (14) are arranged at the opposite positions of the two ends of the inner surface of the sealing sleeve (5) by taking the central line of the side surface of the sleeve ring (8) in the vertical direction as a symmetrical axis.

6. The self-sealing oilfield safety packer of claim 1, wherein: the diameter of the surface of one side, close to each other, of the first threaded rod (7) positioned at the same end is larger than that of the surface, far away from each other, of the first threaded rod (7) positioned at the same end, and the surface of one side, close to each other, of the first threaded rod (7) positioned at the same end is in contact with the surface of one side of the sealing sleeve (5) positioned at the adjacent position.