CN114160517B - Pipeline cleaning device and method for oil and gas field - Google Patents

Abstract

The invention discloses a pipeline cleaning device and method for an oil and gas field, and relates to the technical field of oil and gas field pipelines. The invention comprises a line pipe, wherein the bottom of the line pipe is provided with two supporting mechanisms for preventing the line pipe from falling off; a cleaning mechanism for cleaning the inner wall of the line pipe is arranged in the line pipe; one end of the conduit is equipped with a moving mechanism for lateral movement as well as rotation of the cleaning mechanism. According to the invention, the inner walls of the line pipes can be better cleaned through the cleaning mechanism, and the cleaning mechanism can clean the diameters of the inner walls of different line pipes, so that the applicability of the device is improved, the device is more efficient and convenient, the moving mechanism can move through electric drive of the cleaning mechanism, so that manpower is saved, the height positions of the line pipes with different diameters can be adjusted through the arrangement of the supporting mechanism, the circle center of the line pipe and the circle center of the first driving motor are on a uniform horizontal line, and the cleaning mechanism can conveniently clean the inner walls of the line pipes.

Description

A pipeline cleaning device and method for oil and gas fields

technical field

The invention belongs to the technical field of pipelines in oil and gas fields, and in particular relates to a pipeline cleaning device and method for oil and gas fields.

Background technique

Scale samples in pipelines in oil and gas fields include inorganic substances and organic substances mainly including petroleum and asphalt. Oilfield scales that appear in large quantities in pipelines can be roughly divided into salt scales, corrosion scales and sediment deposits. When incompatible liquids are mixed during transportation, some ions will form insoluble, slightly soluble and insoluble substances in water after being combined. These substances will deposit in the pipeline to produce salt scale, such as carbonate scale, sulfate scale, At the same time, the corrosion products, sediment, etc. in the metal pipeline are deposited together to form mixed scale. If it continues to form, it may eventually block the pipeline, or even completely block it, causing the pipeline to be abandoned;

In the existing pipeline cleaning, the dirt on the inner wall of the pipeline cannot be cleaned well, resulting in troublesome treatment of dirt, requiring multiple cleanings, wasting manpower, and not efficient enough.

Contents of the invention

The object of the present invention is to provide a pipeline pigging and scale removal device and method for oil and gas fields, so as to solve the existing problem: in the existing pipeline cleaning, the dirt on the inner wall of the pipeline cannot be cleaned well, resulting in Dirt treatment is more troublesome, requires multiple cleanings, wastes manpower, and is not efficient enough.

In order to solve the above-mentioned technical problems, the present invention is achieved through the following technical solutions: a pipeline cleaning device for oil and gas fields, including a line pipe, the bottom of the line pipe is equipped with two to prevent the line pipe from falling off support mechanism;

A cleaning mechanism for cleaning the inner wall of the wire pipe is installed inside the wire pipe;

One end of the line pipe is equipped with a moving mechanism for lateral movement and rotation of the cleaning mechanism;

The cleaning mechanism includes a circular fixed block, the circular fixed block is located on the outside of the threaded rod and is threadedly connected with the threaded rod, and the circular fixed block is slidably connected with the horizontal polished rod;

The inside of the circular fixed block is slidingly connected with a plurality of vertical cylinders. The end of the vertical cylinder away from the circular fixed block is also fixed with a fixed column. rectangular scraper;

One side of the fixed column is rotatably connected to a connecting rod, and one end of the connecting rod is rotatably connected to a return block;

A second jacking mechanism is also provided between the return-shaped block and the circular fixed block;

The cleaning mechanism also includes a circular liquid storage tank, the circular liquid storage tank is fixed on the other side of the circular fixed block, the inner bolt of the circular liquid storage tank is fixed with a water pump, and the water pump The input end is connected to the circular liquid storage tank through the connecting water pipe;

The output end of the water pump is connected to the circular stopper through a pipeline;

Atomizing nozzles for spraying liquid are evenly distributed on the outer side of the circular limiting block.

Further, the support mechanism includes a bottom arc-shaped support, the bottom arc-shaped support is located at the bottom of the wire pipe, and the top of the bottom arc-shaped support is provided with an arc-shaped groove for placing the wire pipe;

A first jacking mechanism is fixed on the bottom of the arc-shaped support at the bottom, and the first jacking mechanism is an air cylinder, a hydraulic cylinder, or an electric push rod.

Further, the moving mechanism includes a vertical support plate, the inside of the vertical support plate is rotatably connected with a circular rotating plate, and a bolt at one end of the circular rotating plate is fixed with a second drive motor, and the circular rotating plate One end of the plate is also fixed with a U-shaped bracket on the outside of the second drive motor;

One end of the vertical support plate is fixed with an L-shaped support plate, and one end bolt of the L-shaped support plate is fixed with a first drive motor, and the output end of the first drive motor is fixedly connected with the U-shaped holder;

The output end of the second driving motor is fixed with a threaded rod, and the other end of the circular rotating plate is fixed with a transverse polished rod.

Further, the vertical support plate is rotationally connected to the circular rotating plate through a bearing.

Further, a circular through hole is opened in the inside of the paper-shaped block, for the threaded rod and the transverse polished rod to pass through the inside of the paper-shaped block;

The second jacking mechanism is an air cylinder or a hydraulic cylinder or an electric push rod.

Further, the inside of the circular fixed block is provided with a circular chute, the top of the vertical column is fixed with a circular limit block, and the circular chute passes between the vertical column and the circular fixed block. Sliding connection with the cooperation of the circular limit block.

Further, the fixed column and the connecting rod, and the connecting rod and the circular block are all rotatably connected by pins.

A pipeline pigging and scale removal method for oil and gas fields, which is applicable to the above-mentioned pipeline pigging and scale removal device for oil and gas fields, characterized in that the method steps are:

S. Move the wire pipe containing dirt inside to the top of the support mechanism, the operation of the first jacking mechanism can change the position and height of the arc support at the bottom, and adjust the position height of the wire pipe according to the diameter of the wire pipe;

S. The operation of the first jacking mechanism enables the center of circle of the wire pipe to make the center of the circle of the output end of the first drive motor be on the same horizontal line, and then the cleaning mechanism is moved to the inside of the wire pipe, and the operation of the second jacking mechanism makes the return block Move towards the direction of the circular fixed block, the movement of the return-shaped block enables the vertical cylinder to slide inside the circular fixed block through the connecting rod, and the sliding of the vertical cylinder makes the fixed column and the rectangular scraper move closer to the wire tube The inner wall of the pipe is moved, so that the rectangular scraper can fit the inner wall of the wire pipe;

S. The operation of the second driving motor makes the threaded rod rotate, and the rotation of the threaded rod makes the circular fixed block slide on the outside of the horizontal polished rod, so that the cleaning mechanism can move to the inside of the wire pipe, and then the operation of the first driving motor makes The U-shaped fixed frame rotates, the rotation of the U-shaped fixed frame enables the circular rotating plate to rotate, the rotation of the circular rotating plate enables the cleaning mechanism to rotate inside the wire pipe, and the rectangular scraper can rotate inside the wire pipe , so that the rectangular scraper can scrape off the dirt inside the line pipe;

S. The operation of the water pump makes the liquid inside the circular liquid storage tank inject into the inside of the water pump through the connecting water pipe, and then the water pump injects the liquid into the inside of the circular limit block, and then atomizes the liquid from the outside of the circular limit block. The nozzle sprays to the inner wall of the line pipe;

S. After the inner wall of the line pipe is cleaned, dry the liquid on the inner wall of the line pipe, and then install it on its station.

The present invention has the following beneficial effects:

1. The present invention can better clean the inner wall of the wire pipe through the cleaning mechanism, and the cleaning mechanism can clean the diameter of the inner wall of different wire pipes, which improves the applicability of the device and is more efficient and convenient.

2. Through the moving mechanism, the present invention can drive the cleaning mechanism to move by electricity, saving manpower. The setting of the support mechanism can adjust the height and position of the wire pipes with different diameters, so that the center of the wire pipe is unified with the center of the first drive motor On the horizontal line, it is convenient for the cleaning mechanism to clean the inner wall of the wire pipe.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a structural cross-sectional view inside the line pipe of the present invention;

Fig. 3 is the structural representation of moving mechanism of the present invention;

Fig. 4 is a partial structural schematic diagram of the cleaning mechanism of the present invention;

Fig. 5 is a structural cross-sectional view of the interior of the circular fixed block of the present invention;

Fig. 6 is a schematic structural view of the water pump of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Wire tube; 2. Bottom arc support; 3. The first jacking mechanism; 4. Vertical support plate; 5. The first drive motor; 6. L-shaped support plate; 7. U-shaped fixed frame; 8 , second driving motor; 9, circular rotating plate; 10, threaded rod; 11, horizontal polished rod; 12, circular fixed block; 13, return-shaped block; 14, connecting rod; 15, fixed column; 16, rectangular scraper 17. Circular liquid storage tank; 18. Circular limit block; 19. Atomizing nozzle; 20. Water pump; 21. Connecting water pipe; 22. Vertical column; 23. Second jacking mechanism.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Figures 1-6, the present invention is a pipeline cleaning device for oil and gas fields, including a line pipe 1, and the bottom of the line pipe 1 is equipped with two supporting mechanisms for preventing the line pipe 1 from falling off;

The support mechanism includes a bottom arc-shaped support 2, which is located at the bottom of the wire pipe 1, and the top of the bottom arc-shaped support 2 is provided with an arc-shaped groove for placing the wire pipe 1;

The bottom of the bottom arc support 2 is fixed with a first jacking mechanism 3, the first jacking mechanism 3 is an air cylinder or a hydraulic cylinder or an electric push rod, so that the first jacking mechanism 3 can have more options, and it can be selected according to the situation. The use of the first jacking mechanism 3;

A cleaning mechanism for cleaning the inner wall of the line pipe 1 is installed inside the line pipe 1;

One end of the line pipe 1 is equipped with a moving mechanism for lateral movement and rotation of the cleaning mechanism;

The moving mechanism includes a vertical support plate 4, and the inside of the vertical support plate 4 is rotatably connected with a circular rotating plate 9, and the vertical supporting plate 4 and the circular rotating plate 9 are rotatably connected through a bearing, so that the circular rotating plate 9 Can be rotated inside the vertical support plate 4, one end of the circular rotating plate 9 is bolt-fixed with a second driving motor 8, and one end of the circular rotating plate 9 is also fixed with a U-shaped fixing on the outside of the second driving motor 8. Rack 7;

One end of the vertical support plate 4 is fixed with an L-shaped support plate 6, and one end bolt of the L-shaped support plate 6 is fixed with a first drive motor 5, and the output end of the first drive motor 5 is fixedly connected with the U-shaped holder 7;

The output end of the second driving motor 8 is fixed with a threaded rod 10, and the other end of the circular rotating plate 9 is fixed with a horizontal polished rod 11;

The cleaning mechanism includes a circular fixed block 12, which is located on the outside of the threaded rod 10 and is threadedly connected with the threaded rod 10, and the circular fixed block 12 is slidingly connected with the horizontal polished rod 11;

The inside of the circular fixed block 12 is slidingly connected with a plurality of vertical cylinders 22, the inside of the circular fixed block 12 is provided with a circular chute, the top of the vertical cylinder 22 is fixed with a circular stopper 18, and the vertical cylinder 22 Slidingly connected with the circular fixing block 12 through the cooperation of the circular chute and the circular limiting block 18, so that the circular limiting block 18 can slide inside the circular fixing block 12;

The end of the vertical cylinder 22 away from the circular fixed block 12 is also fixed with a fixed column 15, and one end of the fixed column 15 is fixed with a rectangular scraper 16 for scraping the dirt on the inner wall of the line pipe 1;

One side of fixed post 15 is rotatably connected with connecting rod 14, and one end of connecting rod 14 is rotatably connected with return-shaped block 13, and all is rotatably connected by pin between fixed post 15 and connecting rod 14 and connecting rod 14 and return-shaped block 13 , so that the fixed column 15 and the connecting rod 14 and the connecting rod 14 and the return block 13 can be better rotated and connected;

The inside of the return-shaped block 13 is provided with a circular through hole, which is used for the threaded rod 10 and the transverse smooth rod 11 to penetrate the inside of the return-shaped block 13, so that the rotation of the threaded rod 10 will not affect the return-shaped block 13;

A second jacking mechanism 23 is also provided between the return-shaped block 13 and the circular fixed block 12;

The second jacking mechanism 23 is an air cylinder or a hydraulic cylinder or an electric push rod, so that the second jacking mechanism 23 has more options;

The cleaning mechanism also includes a circular liquid storage tank 17, the circular liquid storage tank 17 is fixed on the other side of the circular fixed block 12, the inner bolt of the circular liquid storage tank 17 is fixed with a water pump 20, and the input end of the water pump 20 Connect with the circular liquid storage tank 17 by connecting the water pipe 21;

The output end of the water pump 20 is connected with the circular stop block 18 through a pipeline;

Atomizing nozzles 19 for spraying liquid are evenly distributed on the outer side of the circular limiting block 18, through the operation of the water pump 20, the liquid inside the circular liquid storage tank 17 can be sprayed to the inner wall of the line pipe 1, reducing the line pressure. The adhesion of the dirt on the inner wall of the pipe 1 enables the dirt to fall off the inner wall of the pipe 1;

Here, the method for using the device of the present invention is disclosed, the steps are as follows:

S1. Move the wire pipe 1 containing dirt inside to the top of the support mechanism. The operation of the first jacking mechanism 3 enables the position and height of the bottom arc support 2 to be changed, and the wire pipe 1 is adjusted according to the diameter of the wire pipe 1 position height;

S2. The operation of the first jacking mechanism 3 enables the center of circle of the line pipe 1 to make the center of circle of the output end of the first driving motor 5 be on the same horizontal line, and then the cleaning mechanism is moved to the inside of the line pipe 1, and the operation of the second jacking mechanism 23 Make the back-shaped block 13 move towards the direction close to the circular fixed block 12, the movement of the back-shaped block 13 makes the vertical cylinder 22 slide in the inside of the circular fixed block 12 through the connecting rod 14, the vertical cylinder 22 Sliding makes the fixed column 15 and the rectangular scraper 16 move closer to the inner wall of the wire pipe 1, so that the rectangular scraper 16 can fit the inner wall of the wire pipe 1;

S3. The operation of the second driving motor 8 makes the threaded rod 10 rotate, and the rotation of the threaded rod 10 makes the circular fixed block 12 slide on the outside of the horizontal polished rod 11, so that the cleaning mechanism can move to the inside of the wire pipe 1, and then the second The operation of a driving motor 5 makes the U-shaped fixed frame 7 rotate, and the rotation of the U-shaped fixed frame 7 enables the circular rotating plate 9 to rotate, and the rotation of the circular rotating plate 9 enables the cleaning mechanism to rotate inside the wire pipe 1 , so that the rectangular scraper 16 can rotate inside the wire pipe 1, so that the rectangular scraper 16 can scrape off dirt inside the wire pipe 1;

S4. The operation of the water pump 20 makes the liquid inside the circular liquid storage tank 17 inject into the inside of the water pump 20 through the connecting water pipe 21, and then the liquid is injected into the inside of the circular limiter 18 by the water pump 20, and then the liquid is injected into the circular limiter 18 by the circular limiter. The atomizing nozzle 19 on the outside of the block 18 sprays to the inner wall of the line pipe 1;

S5. After the inner wall of the line pipe 1 is cleaned, the liquid on the inner wall of the line pipe 1 is dried, and then installed on its work station.

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific 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 invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description 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 invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (8)

1. A pipeline cleaning device for oil and gas fields, including a line pipe (1), characterized in that: the bottom of the line pipe (1) is equipped with two supports for preventing the line pipe (1) from falling off mechanism; A cleaning mechanism for cleaning the inner wall of the line pipe (1) is installed inside the line pipe (1); One end of the line pipe (1) is equipped with a moving mechanism for lateral movement and rotation of the cleaning mechanism; The cleaning mechanism includes a circular fixed block (12), the circular fixed block (12) is located on the outside of the threaded rod (10) and is threadedly connected with the threaded rod (10), the circular fixed block (12) It is slidingly connected with the horizontal polished rod (11); A plurality of vertical cylinders (22) are slidably connected inside the circular fixing block (12), and a fixing column (15) is fixed at the end of the vertical cylinder (22) away from the circular fixing block (12), One end of the fixing column (15) is fixed with a rectangular scraper (16) for scraping off dirt on the inner wall of the line pipe (1); One side of the fixed column (15) is rotatably connected to a connecting rod (14), and one end of the connecting rod (14) is rotatably connected to a return-shaped block (13); A second jacking mechanism (23) is also provided between the return-shaped block (13) and the circular fixed block (12); The cleaning mechanism also includes a circular liquid storage box (17), the circular liquid storage box (17) is fixed on the other side of the circular fixed block (12), and the circular liquid storage box (17) A water pump (20) is fixed on the inner bolt, and the input end of the water pump (20) is connected to the circular liquid storage tank (17) through a connecting water pipe (21); The output end of the water pump (20) is connected to the circular stopper (18) through a pipe; Atomizing nozzles (19) for spraying liquid are evenly distributed on the outer side of the circular limiting block (18). 2. A pipeline pigging device for oil and gas fields according to claim 1, characterized in that: the support mechanism includes a bottom arc support (2), and the bottom arc support (2) Located at the bottom of the line pipe (1), the top of the bottom arc-shaped support (2) is provided with an arc-shaped groove for placing the line pipe (1); A first jacking mechanism (3) is fixed on the bottom of the bottom arc support (2), and the first jacking mechanism (3) is an air cylinder or a hydraulic cylinder or an electric push rod. 3. A pipeline pigging device for oil and gas fields according to claim 1, characterized in that: the moving mechanism includes a vertical support plate (4), and the inside of the vertical support plate (4) A circular rotating plate (9) is rotatably connected, and one end of the circular rotating plate (9) is bolted to a second driving motor (8), and one end of the circular rotating plate (9) is located at the second driving motor (8) is also fixed with a U-shaped bracket (7); One end of the vertical support plate (4) is fixed with an L-shaped support plate (6), and one end of the L-shaped support plate (6) is bolted with a first drive motor (5), and the first drive motor ( 5) The output end is fixedly connected with the U-shaped bracket (7); The output end of the second drive motor (8) is fixed with a threaded rod (10), and the other end of the circular rotating plate (9) is fixed with a horizontal polished rod (11). 4. A pipeline cleaning device for oil and gas fields according to claim 3, characterized in that: the vertical support plate (4) and the circular rotating plate (9) are rotationally connected by bearings . 5. A pipeline pigging device for oil and gas fields according to claim 1, characterized in that: a circular through hole is opened inside the circular block (13) for threaded rods (10) And the horizontal polished rod (11) runs through the inside of the back-shaped block (13); The second jacking mechanism (23) is an air cylinder or a hydraulic cylinder or an electric push rod. 6. A pipeline cleaning device for oil and gas fields according to claim 1, characterized in that: a circular chute is opened inside the circular fixing block (12), and the vertical cylinder ( The top of 22) is fixed with a circular limit block (18), and the vertical cylinder (22) and the circular fixed block (12) are connected through the cooperation of the circular chute and the circular limit block (18). Swipe to connect. 7. A pipeline pigging device for oil and gas fields according to claim 1, characterized in that: the fixed column (15) and the connecting rod (14) and the connecting rod (14) and the circular block ( 13) are connected by rotation through pins. 8. A pipeline pigging and scale removal method for oil and gas fields, suitable for a pipeline pigging and scale removal device for oil and gas fields according to any one of claims 1-7, characterized in that: the method steps are : S1. Move the wire pipe (1) containing dirt to the top of the support mechanism, the operation of the first jacking mechanism (3) can change the position and height of the bottom arc support (2), according to the wire pipe (1 ) to adjust the position height of the wire pipe (1); S2. The operation of the first jacking mechanism (3) enables the center of the circle of the wire pipe (1) to make the center of the circle of the output end of the first drive motor (5) be on the same horizontal line, and move the cleaning mechanism to the inside of the wire pipe (1). The operation of the two jacking mechanisms (23) enables the vertical cylinder (22) to slide inside the circular fixed block (12), and the sliding of the vertical cylinder (22) enables the rectangular scraper (16) to fit the line the inner wall of the tube (1); S3. The operation of the second driving motor (8) enables the cleaning mechanism to move to the inside of the wire pipe (1), and then the operation of the first driving motor (5) enables the cleaning mechanism to rotate inside the wire pipe (1), so that The rectangular scraper (16) can rotate inside the wire pipe (1), so that the rectangular scraper (16) can scrape off dirt inside the wire pipe (1); S4. The operation of the water pump (20) makes the liquid inside the circular liquid storage tank (17) spray to the inner wall of the line pipe (1); S5. After the inner wall of the line pipe (1) is cleaned, dry the liquid on the inner wall of the line pipe (1), and then install it on its work station.

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