CN213103625U

CN213103625U - Shaft descaling device for oil exploitation

Info

Publication number: CN213103625U
Application number: CN202021787939.4U
Authority: CN
Inventors: 张林善; 尚丽丽; 张玉芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-05-04
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a pit shaft scale removal device for oil development relates to oil pit shaft scale removal equipment technical field. The utility model discloses an auxiliary rod, sleeve pipe and set up in sleeve pipe one side and be linked together the radial sleeve pipe windowing that sets up with the sleeve pipe, the inside below that just is located radial sleeve pipe windowing connector of sheathed tube is reserved the card and is equipped with the whipstock, the sleeve pipe interpolation is equipped with high-pressure water pipe, high-pressure water pipe's bottom intercommunication is provided with the shower nozzle, the bottom fixed mounting of shower nozzle has the guide head just the top of shower nozzle is provided with the scraper blade. The utility model discloses a combined action of high-pressure rivers and scraper blade realizes that the crude oil dirt can effectively follow the wellbore wall face and takes off to realize improving the process of oil pit shaft cleaning efficiency, realize the application of force scale removal work to the scraper blade through the effect of establishing the auxiliary rod at the earth's surface even, the clearance effect is thorough, has prolonged the regrowth cycle of dirt, has optimized the cleaning work of oil pit shaft.

Description

Shaft descaling device for oil exploitation

Technical Field

The utility model relates to an oil pit shaft scale removal equipment technical field, concretely relates to pit shaft scale removal device for oil development.

Background

In the process of oil exploitation, extracting crude oil for a long time can cause a large amount of viscous crude oil with high viscosity to be attached to a pipeline of an oil well shaft, and the efficiency of oil exploitation can be seriously affected when more dirt is attached to the inner wall of the pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems in the background technology, the utility model provides a shaft descaling device for oil exploitation.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a pit shaft scale removal device for oil development, includes auxiliary rod, sleeve pipe and sets up in sleeve pipe one side and be linked together the radial sleeve pipe windowing that sets up with the sleeve pipe, the inside below that just is located radial sleeve pipe windowing connector of sleeve pipe is reserved the card and is equipped with the whipstock, the sleeve pipe interpolation is equipped with high-pressure water pipe, high-pressure water pipe's bottom intercommunication is provided with the shower nozzle, the bottom fixed mounting of shower nozzle has the guide head just the top of shower nozzle is provided with the scraper blade, auxiliary rod avoids high-pressure water pipe's fixed position and shower nozzle fixed connection.

Further, the number of the scrapers is four and each scraper is fan-shaped, the top of the spray head and the outside of the high-pressure water pipe are fixedly provided with an auxiliary supporting pipe, four supporting pieces distributed in a circumferential array and sliding sleeves corresponding to the supporting pieces are fixedly arranged on the ring piece at the top of the auxiliary supporting pipe, each connecting rod connected to the scrapers is arranged in the corresponding sliding sleeves in a sliding mode, and each supporting piece is fixedly connected with a first spring which is used for being abutted to the bottom end of the corresponding scraper.

Furthermore, a seat head is fixedly mounted at the bottom of the guide head, two mutually perpendicular and non-intersecting through holes are formed in the seat head, two sliding cylinders are fixedly mounted in the through holes, two sliding cylinders are connected inside the sliding cylinders in a sliding mode, every two sliding rods are connected between every two sliding rods, and a roller used for rolling on the inner wall of the sleeve is fixedly mounted at one end, extending out of the corresponding sliding cylinder, of each sliding rod.

Furthermore, each roller is provided with a plurality of tooth sockets which are distributed in a circumferential array at equal intervals.

Furthermore, the auxiliary rod comprises a plurality of hollow pipes which are connected with each other, internal threads are formed in the top of each hollow pipe, and threaded pipes which are connected with the adjacent hollow pipes in a threaded mode are fixedly installed at the bottoms of the hollow pipes except the hollow pipes of which the bottoms are fixedly connected with the spray head.

The utility model has the advantages as follows: the utility model discloses a combined action of high-pressure rivers and scraper blade realizes that the crude oil dirt can effectively follow the wellbore wall face and takes off to realize improving the process of oil pit shaft cleaning efficiency, realize the application of force scale removal work to the scraper blade through the effect of establishing the auxiliary rod at the earth's surface even, the clearance effect is thorough, has prolonged the regrowth cycle of dirt, has optimized the cleaning work of oil pit shaft.

Drawings

FIG. 1 is a side view of the structure of the present invention;

FIG. 2 is a sectional view of the structure A-A of the present invention;

FIG. 3 is an enlarged view of the structure B of FIG. 2;

FIG. 4 is an enlarged view of the structure of FIG. 2;

reference numerals: 1. a sleeve; 2. windowing the radial sleeve; 3. a whipstock; 4. a spray head; 5. an auxiliary lever; 501. a hollow tube; 502. an internal thread; 503. a threaded pipe; 6. a squeegee; 7. supporting a tube; 8. a support member; 9. a sliding sleeve; 10. a first spring; 11. a guide head; 12. a seat head; 13. a slide cylinder; 14. a slide bar; 15. a roller; 16. a second spring; 17. a high pressure water pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

As shown in fig. 2, an embodiment of the present invention provides a wellbore descaling device for oil exploitation, which can clean the inner wall of an oil wellbore through the action of a scraper 6 and a high-pressure water flow, wherein the device comprises an auxiliary rod 5, a radial casing windowing 2 communicated with the casing 1 is disposed on one side of the casing 1 before cleaning, the radial casing windowing 2 is used for collecting the dirt flushed by the water flow, wherein a whipstock 3 is reserved inside the casing 1 and below a connection port of the radial casing windowing 2, the whipstock 3 is not taken out after the radial casing windowing 2 is disposed, the whipstock is used for preventing the dirt from falling into the bottom of the wellbore after being flushed, the repeated cleaning of the dirt is avoided, for the flushing action of the real water flow, the high-pressure water pipe 17 is inserted into the high-pressure casing 1, and a spray head 4 is disposed at the bottom end of the high-pressure water pipe 17, increase local velocity of water flow through the effect of shower nozzle 4, realize the high pressure cleaning to the dirt, for the better removal of the adnexed dirt of wellbore wall, bottom fixed mounting guide head 11 at shower nozzle 4 and set up scraper blade 6 at the top of shower nozzle 4, guide head 11 is narrow down and wide from top to bottom passes through, more be favorable to wearing to establish of high pressure water pipe 17, the specification of scraper blade 6 should be less than the internal diameter of pit shaft a little, wherein for scraping the dirt to scraper blade 6 application of force, set up auxiliary rod 5 and avoid the fixed position and the shower nozzle 4 fixed connection of high pressure water pipe 17 (can be as shown in fig. 2 with auxiliary rod 5 setting in the inside of high pressure water pipe 17 for balanced effort).

As shown in figure 3, considering the special structure of the inner wall of the shaft, in order to make the scrapers 6 fit the bulges of the inner wall of the shaft to a certain extent without causing the blockage of the equipment, four scrapers 6 are provided and each scraper 6 is provided in a mutually matched fan shape, an auxiliary support pipe 7 is fixedly arranged at the top end of the spray head 4 and outside the high-pressure water pipe 17, four supporting pieces 8 distributed in a circumferential array and a sliding sleeve 9 corresponding to each supporting piece 8 are fixedly arranged on a ring sheet at the top of the auxiliary support pipe 7, a connecting rod connected to each scraper 6 is slidably arranged in the corresponding sliding sleeve 9, each scraper 6 can slide radially along the corresponding sliding sleeve 9, a spring I10 for abutting against the bottom end of the corresponding scraper 6 is fixedly connected to each supporting piece 8, when the scrapers 6 encounter the irregular structure of the inner wall of the shaft, the shaft acts on the corresponding scraper 6 and applies pressure to the spring I10, can effectively avoid the protruding structure of pit shaft, prevent equipment jamming that causes when the clearance to a certain extent.

As shown in fig. 3, in order to effectively control the action point of the spray head 4, a seat head 12 is fixedly installed at the bottom of a guide head 11, two through holes which are perpendicular to each other and do not intersect are formed in the seat head 12, a sliding cylinder 13 is fixedly installed in each through hole (the structure of the sliding cylinder 13 is shown in fig. 3, two sides of the sliding cylinder are sealed to avoid the slipping of the internal structure), two sliding rods 14 are slidably installed in each sliding cylinder 13, each two sliding rods 14 are connected by a second spring 16, finally, a roller 15 for rolling on the inner wall of the casing 1 is fixedly installed at one end of each sliding rod 14 extending out of the corresponding sliding cylinder 13, each two corresponding rollers 15 are far away from each other and are contacted with the wall surface of the well bore by the elastic force of the two second springs 16, when the internal structure section of the well bore is unevenly distributed, the roller 15 can balance the acting force under the action of the spring to enable the guide head 11 to be located at the stressed central position of the shaft at any time (the sliding rod 14 and the sliding cylinder 13 have a certain limit relation so as to drive the guide head 11 to move conveniently).

As shown in fig. 3, when the dirt in the shaft is too much, the roller 15 cannot pick up the wall surface of the shaft to roll, a plurality of tooth grooves which are distributed in a circumferential array at equal intervals are formed in each roller 15, viscous dirt is avoided to a certain extent through the action of the tooth grooves, the contact depth of the roller 15 and the wall surface is increased, and the guide head 11 can be driven to be in a reasonable position to act.

As shown in figures 2 and 4, considering that the auxiliary rod 5 can not be a straight rod and is difficult to install and use, the auxiliary rod 5 is composed of a plurality of hollow pipes 501 connected with each other, an internal thread 502 is arranged at the top of each hollow pipe 501, except for the hollow pipes 501 fixedly connected with the spray head 4, a threaded pipe 503 which is used for being in threaded connection with the adjacent hollow pipes 501 is fixedly arranged at the bottom of each hollow pipe 501, mutual splicing between the hollow pipes 501 is realized through the connecting action of the threaded pipe 503 and the internal thread 502, and normal installation and use of the equipment are guaranteed.

Claims

1. The utility model provides a pit shaft scale removal device for oil development, its characterized in that includes auxiliary rod (5), sleeve pipe (1) and sets up in sleeve pipe (1) one side and radial sleeve pipe windowing (2) that are linked together the setting with sleeve pipe (1), the inside of sleeve pipe (1) just is located the below reservation card of radial sleeve pipe windowing (2) connector and is equipped with whipstock (3), sleeve pipe (1) interpolation is equipped with high-pressure water pipe (17), the bottom intercommunication of high-pressure water pipe (17) is provided with shower nozzle (4), the bottom fixed mounting of shower nozzle (4) has guide head (11) just the top of shower nozzle (4) is provided with scraper blade (6), auxiliary rod (5) avoid the fixed position and shower nozzle (4) fixed connection of high-pressure water pipe (17).

2. The wellbore descaling device for oil exploitation according to claim 1, wherein the number of the scrapers (6) is four, each scraper (6) is fan-shaped, the top end of the spray head (4) is fixedly provided with an auxiliary support tube (7) at the outer side of the high-pressure water pipe (17), four supporting members (8) distributed in a circumferential array and a sliding sleeve (9) corresponding to each supporting member (8) are fixedly arranged on a ring sheet at the top of the auxiliary support tube (7), a connecting rod connected to each scraper (6) is slidably arranged in the corresponding sliding sleeve (9), and a first spring (10) for abutting against the bottom end of the corresponding scraper (6) is fixedly connected to each supporting member (8).

3. The wellbore descaling device for oil exploitation according to claim 1, wherein a seat head (12) is fixedly installed at the bottom of the guide head (11), two through holes which are perpendicular to each other and do not intersect are formed in the seat head (12), sliding cylinders (13) are fixedly installed in the two through holes, two sliding rods (14) are slidably connected inside the two sliding cylinders (13), a second spring (16) is connected between every two sliding rods (14), and a roller (15) for rolling on the inner wall of the casing (1) is fixedly installed at one end of each sliding rod (14) extending out of the corresponding sliding cylinder (13).

4. A wellbore descaling device according to claim 3, wherein each roller (15) is provided with a plurality of tooth grooves which are equally spaced and circumferentially arrayed.

5. The wellbore descaling device for oil production according to claim 1, wherein the auxiliary rod (5) comprises a plurality of hollow pipes (501) connected with each other, the top of each hollow pipe (501) is provided with an internal thread (502), and the bottom of each hollow pipe (501) is fixedly provided with a threaded pipe (503) for being in threaded connection with the adjacent hollow pipe (501) except the hollow pipe (501) the bottom of which is fixedly connected with the spray head (4).