Oil sludge and oil dirt cleaning device for outer wall of oil pipe of oil well of well drilling and workover platform

Abstract

A cleaning device for oil sludge and oil dirt on the outer wall of an oil pipe of an oil well of a well drilling and workover platform comprises a first component and a second component, one end of the first component and one end of the second component are each provided with a connecting piece, the connecting pieces on the first component and the second component are coaxially matched with each other, a connecting rod is arranged at the axis position, and the connecting rod is rotationally connected with the connecting pieces. Nuts are arranged at the two ends of the first component and are in threaded connection with the connecting rods, flushing pipes are arranged in inner cavities of the first component and the second component, water inlet hoses are connected to one sides of the flushing pipes, the water inlet hoses are connected with a water pump, and nozzles are arranged on the flushing pipes. Cleaning assemblies used for cleaning the outer wall of an oil well oil pipe are arranged in inner cavities of the first component and the second component, a lock pin is arranged at the end, away from the connecting piece, of the first component, and a locking structure matched with the lock pin and used for locking the first component and the second component is arranged on the second component. According to the cleaning device, closed high-temperature and high-pressure water is used for cleaning, the cleaning effect is remarkable, oil-containing dirt sewage is completely recycled and cleaned, and environmental pollution is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of oil extraction, and in particular to a device for cleaning the outer wall of oil sludge and oil dirt on an oil well pipe of a drilling and repairing platform. Background Art

[0002] Oil pipe is a kind of pipeline equipment used in oil well drilling and production. It is used in combination with the wellhead and completion equipment in the oil well. As an important component inside the oil well, it is usually made of heavy steel pipe. It can isolate various geological materials in the formation and limit the diffusion and intersection of the mixture of oil, water and gas in the oil well.

[0003] During the oil well production process, after a long period of deposition, a lot of sludge and oil dirt will adhere to the outer wall of the oil well pipe. These sludge and oil dirt will have a negative impact on the stability of the pipe and the strength of the well wall during the oil well production process, causing wear and damage to the well body equipment. It is necessary to clean the sludge and oil dirt on the outer wall of the pipe in time to ensure the safe production of the oil well and extend the life of the oil well.

[0004] At present, during the drilling and workover process, the outer wall of the oil pipe is usually cleaned by workers on the drilling and workover platform directly when the oil pipe is taken out of the oil well, or the oil pipes are gathered together and then cleaned manually. The disadvantages of manual cleaning are that the steps are complicated, the cleaning is difficult, and the cleaning effect is difficult to guarantee. In addition, the sludge and oil dirt after cleaning on the drilling and workover platform cannot be recovered. At the same time, high-pressure cleaning brings potential safety risks and is not easy to operate safely. At the same time, the sludge and oil dirt after cleaning will pollute the environment. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this application is to provide a device for cleaning the outer wall of oil sludge and oil stains on the oil well pipe of a drilling and repair platform, so as to solve the problems mentioned in the background technology that the manual cleaning steps are cumbersome, the cleaning is difficult and the cleaning effect is difficult to guarantee, and the sludge and oil stains after cleaning cannot be recovered, making it difficult to operate safely and damaging the environment.

[0006] The above technical problems solved by the present application are achieved through the following technical solutions:

[0007] A device for cleaning sludge and oil stains on the outer wall of an oil well pipe on a drilling and workover platform comprises a first component and a second component, wherein a connecting piece is arranged at one end of the first component and the second component, the connecting pieces on the first component and the second component cooperate with each other coaxially, and a connecting rod is arranged at the axis, the connecting rod is rotatably connected to the connecting piece, and nuts are arranged at both ends, the nut and the connecting rod are threadedly connected, a flushing pipe is arranged in the inner cavity of the first component and the second component, a hose is connected to one side of the flushing pipe, a nozzle is arranged on the flushing pipe, a cleaning component for cleaning the outer wall of the oil pipe is arranged on one side of the flushing pipe in the inner cavity of the first component and the second component, a locking pin is arranged at the end of the first component away from the connecting piece, and a locking structure for locking the first component and the second component cooperating with the locking pin is arranged on the second component.

[0008] By adopting the above technical scheme, when in use, the cleaning device is placed on the wellhead, the cleaning device is wrapped around the outer wall of the oil well tubing that needs to be cleaned, and the first component and the second component are locked by a locking structure. When the tubing is taken out from the wellhead of the drilling and repairing platform, the high-temperature and high-pressure cleaning fluid is sprayed from the nozzle of the flushing pipe and sprayed onto the outer wall of the tubing, and then the cleaning component scrapes the outer wall of the tubing, and the cleaned sludge and oil dirt will flow back into the wellbore. The equipment can clean the outer wall of the tubing while the tubing is taken out from the drilling and repairing platform, thereby improving the cleaning effect and cleaning efficiency, and the cleaned sludge and oil dirt will not flow around on the drilling and repairing platform, thereby improving the working safety of the workers and avoiding environmental pollution.

[0009] A further optimization scheme, the cleaning assembly includes a clamp, a cleaning plate and a fixing plate, one side of the two clamps are fixedly connected to the inner walls of the first component and the second component respectively, the cleaning plate is arranged on one side of the clamp, and the fixing plate is arranged on the side of the cleaning plate away from the clamp, and is fixed by bolts on the clamp, the cleaning plate and the fixing plate.

[0010] By adopting the above technical solution, the cleaning plate is fixed on the clamp and the fixing plate, so that the cleaning effect of the cleaning plate on the oil pipe is guaranteed.

[0011] According to a further optimization scheme, a plurality of water filter openings are provided on the clamp.

[0012] By adopting the above technical solution, the multiple water filter ports provided on the clamp can allow the cleaning liquid to flow into the wellbore from the water filter ports after cleaning, thereby preventing sludge and oil dirt from flowing to the ground and polluting the environment.

[0013] According to a further optimization scheme, the cleaning components are arranged in a plurality of groups relative to each other in the first component and the second component.

[0014] By adopting the above technical solution and setting up multiple groups of cleaning components, the outer wall of the oil pipe can be cleaned multiple times to ensure the cleaning effect.

[0015] According to a further optimization solution, the cleaning plate is made of rubber.

[0016] By adopting the above technical solution, the rubber has a certain toughness and strength, which can prevent damage to the outer wall of the oil pipe while ensuring cleanliness.

[0017] A further optimization scheme, the locking structure assembly includes a connecting plate, one end of the connecting plate is fixedly connected to the second component, and the other end is rotatably connected to the locking handle, a connecting column is provided on the side of the locking handle close to the connecting plate, the connecting column is rotatably connected to the locking handle through a through hole opened on the locking handle, and U-shaped locking pieces are provided passing through both ends of the connecting column, and both ends of the U-shaped locking piece are movably connected to the connecting column through the through holes opened on the connecting column.

[0018] By adopting the above technical solution, the locking structure locks the first component and the second component during the operation of the cleaning device.

[0019] A further optimization scheme is that a limiter is provided on the locking handle close to the second component and away from the connecting plate. One end of the limiter is rotatably connected to the locking handle through a circular hole opened on the locking handle, and the other end is engaged with a locking groove opened on the connecting plate.

[0020] By adopting the above technical solution and setting the limiter, it is ensured that the locking structure prevents accidental unlocking when locking the first component and the second component.

[0021] According to a further optimization solution, handles are symmetrically arranged on the outer walls of the first component and the second component.

[0022] By adopting the above technical solution and providing a handle, the cleaning device can be easily transported, assembled and disassembled.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the first component and the second component, the flushing pipe, nozzle, cleaning assembly arranged in the first component and the second component and the locking structure arranged on the outer wall of the first component and the second component, the pre-cleaning device is placed at the wellhead, and the cleaning device is wrapped on the outer wall of the oil pipe. The first component and the second component are locked by the locking structure. When the oil pipe is taken out of the wellhead, the high-temperature and high-pressure cleaning liquid in the flushing pipe is sprayed from the nozzle and evenly splashed on the outer wall of the online oil pipe. Then, after the cleaning assembly is cleaned, the cleaned sludge and oil dirt return to flow into the wellbore, thereby improving the cleaning efficiency and cleaning effect, and the cleaned sludge and oil dirt will not flow onto the drilling platform, thereby improving the working safety of the workers and avoiding environmental pollution.

[0025] 2. Fix the cleaning plate with the clamp and the fixing plate to ensure the cleaning effect of the cleaning plate on the oil pipe.

[0026] 3. Through the multiple water filter ports provided on the clamp, the cleaning liquid can flow into the wellbore from the water filter ports after cleaning, thus preventing the sludge and oil dirt from being discharged to the ground and polluting the environment.

[0027] 4. Through the multiple sets of cleaning components, the outer wall of the oil pipe can be cleaned multiple times to ensure the cleaning effect.

[0028] 5. The setting of the limiter ensures that the locking structure prevents accidental unlocking when locking the first component and the second component. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model;

[0030] Figure 2 It is a schematic diagram of the cleaning component of the utility model;

[0031] Figure 3 It is a schematic diagram of the locking structure of the utility model.

[0032] Figure numerals: 1. first component; 2. second component; 3. connecting member; 4. connecting rod; 5. flushing pipe; 6. cleaning assembly; 60. clamp; 61. cleaning plate; 62. fixing plate; 63. water filter outlet; 7. locking pin; 8. locking structure; 80. connecting plate; 81. locking handle; 82. connecting column; 83. U-shaped locking member; 84. limiter; 85. locking groove; 9. handle; 10. limit plate. DETAILED DESCRIPTION

[0033] The utility model application is further described in detail below in conjunction with the accompanying drawings.

[0034] Example, see Figure 1 , Figure 2 and Figure 3A device for cleaning the outer wall of oil sludge and oil dirt of an oil well pipe on a drilling and repairing platform comprises two identical semi-barrel-shaped first components 1 and second components 2, one end of the first component 1 and the second component 2 are respectively fixedly connected with a plurality of connecting pieces 3, the connecting pieces 3 on the first component 1 and the second component 2 cooperate with each other coaxially, and a connecting rod 4 is installed at the axis, the connecting rod 4 connects one end of the first component 1 and the second component 2 together, the connecting rod 4 is rotatably connected to the connecting pieces 3 on the first component 1 and the second component 2, and both ends are threadedly connected to the connecting rod 4 through nuts, a semi-circular flushing pipe 5 is fixedly installed in the inner cavity of the first component 1 and the second component 2, and the two One end of the flushing pipe 5 is connected to one end of a water inlet hose (not shown in the drawings), and the other end of the water inlet hose is connected to a water pump (not shown in the drawings). Multiple nozzles are installed on the two semicircular flushing pipes 5, and the nozzles are facing the outer wall of the oil pipe. In this way, when the cleaning device is working, it can be ensured that the outer wall of the oil pipe can be splashed with cleaning liquid 360 degrees. Multiple cleaning components 6 are installed on one side of the flushing pipe 5 inside the first component 1 and the second component 2 to clean the outer wall of the oil pipe. A locking pin 7 is installed on the outer side of the end of the first component 1 away from the connecting piece 3, and the second component 2 is installed with a locking structure 8 for locking the first component 1 and the second component 2, which cooperates with the locking pin 7.

[0035] Specifically, the cleaning assembly 6 includes a clamp 60 respectively installed in the inner cavity of the first component 1 and the second component 2 and fixedly connected to the first component 1 and the second component 2, a cleaning plate 61 installed on one side of the clamp 60, and a fixing plate 62 for fixing the cleaning plate 61. The fixing plate 62 fixes the clamp 60, the cleaning plate 61 and the fixing plate 62 into a whole by bolts.

[0036] Furthermore, a plurality of water filter ports 63 are formed on the clamp 60 .

[0037] Furthermore, the cleaning plate 61 is preferably made of rubber material, but is not limited thereto.

[0038] Specifically, the locking structure 8 includes a connecting plate 80, one end of which is fixedly connected to the second component 2, and the other end is rotatably connected to a locking handle 81, and a connecting column 82 is connected to the side of the locking handle 81 close to the connecting plate 80, and the connecting column 82 is rotatably connected to the locking handle 81 through a through hole opened on the locking handle 81, and both ends of the connecting column 82 are penetrated by a U-shaped locking piece 83, and both ends of the U-shaped locking piece 83 are movably connected to the connecting column 82 through the through holes opened on the connecting column 82, and the U-shaped locking piece 83 passes through one end of the connecting column 82 and is threadedly connected to locking nuts on both sides of the connecting column 82.

[0039] More specifically, a limiter 84 is installed on the locking handle 81 close to the second component 2 and away from the connecting plate 80. One end of the limiter 84 is rotatably connected to the locking handle 81 through a circular hole provided on the locking handle 81, and the other end is engaged with a locking groove 85 provided on the connecting plate 80. When the locking structure 8 locks the first component 1 and the second component 2, the limiter 84 is engaged in the locking groove 85, which can ensure that the position of the locking handle 81 changes and prevent the U-shaped locking member 83 from escaping from the locking pin 7.

[0040] In order to facilitate the transportation, assembly and disassembly of the cleaning device, handles 9 are symmetrically installed on the outer walls of the first component 1 and the second component 2 .

[0041] In order to ensure that the first component 1 and the second component 2 produce relative displacement during work, a limit plate 10 is installed on the side of the first component 1 and the second component 2 close to the handle. During use, when the first component 1 and the second component 2 are locked, the limit plate 10 on the first component 1 is inserted between the two limit plates 10 on the second component 2.

[0042] In the specific implementation process, the pre-cleaning device is placed at the wellhead of the drilling and repairing platform, the oil pipe is installed in the middle of the cleaning device, the oil pipe is wrapped 360 degrees by the cleaning plate 61, the U-shaped locking piece 83 is inserted into the locking pin 7, the first component 1 and the second component 2 are locked, the limiter 84 is clamped into the locking groove 85, and the oil pipe is taken out of the oil well. At the same time, the water pump is started, and the high-temperature and high-pressure cleaning liquid is sprayed from the nozzle of the flushing pipe 5 and splashed onto the outer wall of the oil pipe. Then the cleaning plate 61 cleans the sludge and dirt on the outer wall of the oil pipe, and the cleaned sludge and dirt and the cleaning agent flow into the wellbore from the water filter port 63 opened on the clamp 60.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for cleaning the outer wall of oil sludge and oil dirt on oil well pipes on a drilling and workover platform, characterized in that: The invention comprises a first component (1) and a second component (2), wherein one end of each of the first component (1) and the second component (2) is provided with a connecting piece (3), the connecting pieces (3) on the first component (1) and the second component (2) are coaxially matched with each other, and a connecting rod (4) is provided at the axis, the connecting rod (4) is rotatably connected to the connecting piece (3), and nuts are provided at both ends, the nuts and the connecting rod (4) are threadedly connected, a flushing pipe (5) is provided in the inner cavity of each of the first component (1) and the second component (2), one side of the flushing pipe (5) is connected to a water inlet hose, the water inlet hose is connected to a water pump, a nozzle is provided on the flushing pipe (5), and a useful nozzle is provided on one side of the flushing pipe (5) in the inner cavity of each of the first component (1) and the second component (2) A cleaning assembly (6) for cleaning the outer wall of an online oil pipe, wherein a locking pin (7) is provided at one end of the first component (1) away from the connecting member (3), and a locking structure (8) is provided on the second component (2) for locking the first component (1) and the second component (2) in cooperation with the locking pin (7). The cleaning assembly (6) comprises a clamp (60), a cleaning plate (61) and a fixing plate (62), one side of the two clamps (60) being fixedly connected to the inner wall of the first component (1) and the second component (2) respectively, the cleaning plate (61) being arranged on one side of the clamp (60), and the fixing plate (62) being arranged on the side of the cleaning plate (61) away from the clamp (60), and being fixed by bolts of the clamp (60), the cleaning plate (61) and the fixing plate (62).

2. The device for cleaning the outer wall of oil sludge and oil dirt of oil well pipe on a drilling and workover platform according to claim 1, characterized in that: The clamp (60) is provided with a plurality of water filtering ports (63).

3. The device for cleaning the outer wall of oil sludge and oil dirt of oil well pipe on a drilling and workover platform according to claim 2, characterized in that: The cleaning components (6) are arranged in a plurality of groups in the inner cavities of the first component (1) and the second component (2) in a relative manner.

4. The device for cleaning the outer wall of oil sludge and oil dirt of oil well pipe on a drilling and workover platform according to claim 1, characterized in that: The cleaning plate (61) is made of rubber.

5. The device for cleaning the outer wall of oil sludge and oil dirt of oil well pipe on a drilling and workover platform according to claim 1, characterized in that: The locking structure (8) comprises a connecting plate (80), one end of which is fixedly connected to the second component (2), and the other end of which is rotatably connected to a locking handle (81); a connecting column (82) is provided on a side of the locking handle (81) close to the connecting plate (80); the connecting column (82) is rotatably connected to the locking handle (81) through a through hole provided on the locking handle (81); U-shaped locking members (83) are provided through both ends of the connecting column (82); and both ends of the U-shaped locking member (83) are movably connected to the connecting column (82) through the through holes provided on the connecting column (82).

6. The device for cleaning the outer wall of oil sludge and oil dirt of oil well pipe on a drilling and workover platform according to claim 5, characterized in that: A limiter (84) is provided on the locking handle (81) close to the second component (2) and away from the connecting plate (80); one end of the limiter (84) is rotatably connected to the locking handle (81) through a circular hole provided on the locking handle (81), and the other end is engaged with a locking groove (85) provided on the connecting plate (80).

7. The device for cleaning the outer wall of oil sludge and oil dirt of oil well pipe on a drilling and workover platform according to claim 1, characterized in that: Handles (9) are symmetrically arranged on the outer walls of the first component (1) and the second component (2).

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