CN218376406U

CN218376406U - Permanent bridge plug for oil exploitation

Info

Publication number: CN218376406U
Application number: CN202222738238.7U
Authority: CN
Inventors: 张跃; 张东升; 陈文革; 侯先龙
Original assignee: Nanjing Cosol Energy Technology Co ltd
Current assignee: Nanjing Cosol Energy Technology Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-24
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a permanent formula bridging plug of oil development, its technical scheme includes: pipeline and locating plate, the locating plate bottom is close to the surface and installs the rubber sleeve through the draw-in groove, the rubber sleeve cup joints inside the pipeline, install the registration arm in the middle of the locating plate lower surface, the outer surface of registration arm has cup jointed the internal expanding cover, the elastic ring is installed through the locating platform to the internal expanding cover surface, the locating plate has cup jointed the pull rod with the inside middle of the locating plate, the pull rod surface is located the locating plate top and has cup jointed the swivel mount, both sides the locating plate top is close to the surface and has cup jointed the endotheca, the endotheca internal surface has cup jointed the locating sleeve through the screw thread. The permanent bridge plug for oil exploitation solves the problems that most of existing bridge plugs are limited in sealing effect on the inner wall of a pipeline, poor in sealing effect of the inner wall of the pipeline and poor in pipeline plugging effect, improves the sealing performance of the bridge plug and accordingly guarantees the sealing performance of the pipeline.

Description

Permanent bridge plug for oil exploitation

Technical Field

The utility model relates to an oil development technical field specifically is a permanent formula bridging plug of oil development.

Background

The oil and gas exploitation is a process of exploiting oil, natural gas and the like buried in an underground oil layer from the underground, and the mode that the oil and gas are exploited to the ground from the underground can be divided into the following steps according to whether energy is artificially supplemented to a shaft fluid as required: the bridge plug is a tool for plugging the oil well underground, and is widely applied to construction operations such as layered fracturing, layered acidification, layered oil testing and the like of an oil-water well in oil field exploration and development.

Through mass search, the permanent bridge plug for the oil exploitation vertical well, disclosed as CN210195713U in the prior art, is found, through the arrangement of a rubber sealing sleeve I, the bridge plug is bonded with the inner wall of an oil well shaft by using a special chemical bonding agent, and meanwhile, through the arrangement of a rubber sealing sleeve II, the bottom of the bridge plug and the inner wall of the oil well shaft are sealed, so that the problem of the flow of the special chemical bonding agent is prevented.

Most of existing bridge plugs have limited sealing effect on the inner wall of a pipeline, the sealing effect on the inner wall of the pipeline is poor, and the pipeline plugging effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a permanent formula bridging plug of oil development possesses sealed effectual advantage, and it is limited to pipe inner wall's sealed effect to have solved current most of bridging plugs, and pipe inner wall seals the effect relatively poor, the not good problem of pipeline shutoff effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a permanent formula bridging plug of oil development, includes pipeline and locating plate, wherein the locating plate bottom is close to the surface and installs the rubber sleeve through the draw-in groove, the rubber sleeve cup joints inside the pipeline, install the registration arm in the middle of the locating plate lower surface, the cover that rises in has been cup jointed to the locating plate outer surface, the elastic ring is installed through the location platform to the cover surface that rises in, the locating plate has cup jointed the pull rod with the inside middle of the locating plate, the pull rod surface is located the locating plate top and has cup jointed the swivel mount.

Preferably, the elastic rings are provided with two elastic rings, the two elastic rings are respectively arranged on the outer surface of the internal expansion sleeve close to the top and the bottom, and the outer surfaces of the two elastic rings are provided with open grooves.

Preferably, the pull rod is connected with the rotating sleeve in a screwing mode through threads.

Preferably, the top of the positioning plate at two sides is sleeved with an inner sleeve close to the outer surface, the inner surface of the inner sleeve is sleeved with a positioning sleeve through threads, and the outer surface of the positioning sleeve close to the top is provided with a locking ring.

Preferably, the locating sleeve top is equipped with the handle, install the connecting rod in the middle of the handle bottom, the transmission platform is installed to the connecting rod bottom, the transmission platform is connected in swivel sleeve top position department.

Preferably, the internal expansion sleeve is made of bearing steel materials.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up internal expanding cover, pull rod, position sleeve and elastic ring, reach the effect of carrying out high-efficient shutoff to the pipeline to it is limited to solve the sealed effect of most of bridging plugs to pipeline inner wall, and the pipeline inner wall is sealed the effect relatively poor, and the not good problem of pipeline shutoff effect has improved the sealing performance of bridging plug, thereby has guaranteed the sealing performance of pipeline.

2. The utility model discloses a set up swivel sleeve, position sleeve and handle, reach the effect of being convenient for take out the bridging plug by pipeline inside to solve the bridging plug and adopt disposable setting, the rate of reuse is low, and the wasting of resources is big, and the not good problem of energy-concerving and environment-protective effect has improved the dismantlement performance of bridging plug, thereby has improved the use economic nature of bridging plug.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of A in FIG. 2;

fig. 4 is an enlarged structural diagram of B in fig. 2.

Reference numerals are as follows: 1. a pipeline; 2. a locking ring; 3. a handle; 4. a positioning sleeve; 5. a rubber sleeve; 6. a pull rod; 7. positioning a plate; 8. a connecting rod; 9. an internal expanding sleeve; 10. a transmission table; 11. a rotating sleeve; 12. an inner sleeve; 13. a positioning tube; 14. an elastic ring; 15. and a positioning table.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-4, in order to achieve the above purpose, the present invention provides the following technical solutions: a permanent bridge plug for oil exploitation comprises a pipeline 1 and a positioning plate 7, wherein a rubber sleeve 5 is installed at the bottom of the positioning plate 7 close to the outer surface through a clamping groove, the rubber sleeve 5 is sleeved inside the pipeline 1, a positioning pipe 13 is installed in the middle of the lower surface of the positioning plate 7, an inner expansion sleeve 9 is sleeved on the outer surface of the positioning pipe 13, an elastic ring 14 is installed on the outer surface of the inner expansion sleeve 9 through a positioning table 15, a pull rod 6 is sleeved between the positioning plate 7 and the inner part of the positioning pipe 13, a rotary sleeve 11 is sleeved on the outer surface of the pull rod 6 at the top of the positioning plate 7, the number of the elastic rings 14 is two, and the two elastic rings 14 are respectively arranged at the positions of the outer surface of the inner expansion sleeve 9 close to the top and the bottom, so as to conveniently plug the pipeline 1, the surface of two elastic rings 14 is equipped with the open slot, and pull rod 6 closes with rotatory cover 11 through the screw thread soon and is connected, drives pull rod 6 through rotatory cover 11 and removes, and 7 tops of both sides locating plate have been close to the surface and have cup jointed

endotheca

12, and 12 internal surfaces of endotheca have cup jointed position sleeve 4 through the screw thread, and 4 surfaces of position sleeve are close to the top and install locking collar 2, and be convenient for follow-up will the utility model discloses take out, 4 tops of position sleeve are equipped with handle 3, install connecting rod 8 in the middle of 3 bottoms of handle, and transmission platform 10 is installed to 8 bottoms of connecting rod, and transmission platform 10 is connected in 11 top position departments of rotatory cover, and internal expanding cover 9 adopts the bearing steel material to make, increases the use strength of internal expanding cover 9.

The working principle of the permanent bridge plug for oil exploitation based on the embodiment is as follows: will the utility model discloses after the installation, when needs carry out the shutoff to pipeline 1, through locking ring 2 with 12 internal surfaces of 4 screw in endotheca of position sleeve, move rubber sleeve 5 and locating plate 7 to pipeline 1 inside again, insert inside 4 of position sleeve with connecting rod 8 again, and peg graft in 11 tops of swivel nut through the transmission platform 10 of 8 bottoms of connecting rod, drive pull rod 6 through swivel nut 11 and shift up, strut cover 9 expanding to the internal expanding of pull rod 6, strut elastic ring 14 through internal expanding cover 9, thereby through elastic ring 14 and rubber sleeve 5, carry out the shutoff to pipeline 1, to this point, this equipment work flow is accomplished.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations to the above embodiments based on the technical solution of the present invention and the related teachings of the above embodiments.

Claims

1. The utility model provides a permanent formula bridging plug of oil development, includes pipeline (1) and locating plate (7), its characterized in that: locating plate (7) bottom is close to the surface and installs rubber sleeve (5) through the draw-in groove, rubber sleeve (5) cup joint inside pipeline (1), install registration arm (13) in the middle of locating plate (7) lower surface, registration arm (13) surface has cup jointed internal expanding cover (9), elastic ring (14) are installed through location platform (15) to internal expanding cover (9) surface, locating plate (7) have cup jointed pull rod (6) with registration arm (13) inside in the middle of, rotatory cover (11) have been cup jointed at locating plate (7) top to pull rod (6) surface.

2. A permanent bridge plug for oil extraction as defined in claim 1, wherein: the elastic ring (14) is provided with two parts, the elastic ring (14) is respectively arranged on the outer surface of the internal expansion sleeve (9) and is close to the top and the bottom, and the outer surface of the elastic ring (14) is provided with an open slot.

3. A permanent bridge plug for oil extraction as defined in claim 1, wherein: the pull rod (6) is connected with the rotary sleeve (11) in a screwing mode through threads.

4. A permanent bridge plug for oil extraction as claimed in claim 1, wherein: the top of the positioning plate (7) on the two sides is close to the outer surface and sleeved with an inner sleeve (12), the inner surface of the inner sleeve (12) is sleeved with a positioning sleeve (4) through threads, and the outer surface of the positioning sleeve (4) is close to the top and provided with a locking ring (2).

5. A permanent bridge plug for oil extraction as claimed in claim 4, wherein: the utility model discloses a rotary sleeve, including position sleeve (4), connecting rod (8), transmission platform (10) are connected in rotary sleeve (11) top position department, the position sleeve (4) top is equipped with handle (3), install connecting rod (8) in the middle of handle (3) bottom, connecting rod (8) bottom.

6. A permanent bridge plug for oil extraction as claimed in claim 1, wherein: the internal expansion sleeve (9) is made of bearing steel materials.