A flushing device for oil well sealing equipment

Abstract

This utility model discloses a flushing device for an oil drilling wellhead, relating to the field of oil drilling technology. The utility model includes a cleaning tank with a cleaning chamber and a water storage chamber on its two sides. A cleaning assembly is installed within the cleaning chamber, comprising a mounting plate fixedly connected to the lower part of the cleaning chamber and a turntable rotatably connected to the mounting plate. Multiple drainage holes are evenly distributed on the surface of the turntable. A recovery assembly is also installed inside the water storage chamber of the cleaning tank. This utility model uses the turntable to rotate the wellhead and a lifting plate to raise and lower the flushing pipe and nozzle, achieving flushing of the wellhead's outer surface and solving the problem of poor cleaning effect in existing systems. Simultaneously, a serpentine tube heats the water storage chamber, causing oil to float on the surface. The oil on the surface is then recovered using a pumping hood, solving the problem of inconvenient oil recovery from water in existing systems.

Description

Technical Field

[0001] This utility model belongs to the field of oil drilling technology, and in particular relates to an oil drilling well sealing device flushing device. Background Technology

[0002] A well sealer is a sealing device for oilfield wellheads. It is mainly used to seal the annular space between the tubing and casing during well-running and tripping operations without pressure control, in order to prevent blowout accidents. It usually consists of two parts: a sealing shell and a rubber core. It is widely used in the oil drilling process. During the use of well sealers, in order to avoid excessive heat accumulation and impurities on the well sealer, a flushing device is usually used to clean the well sealer regularly.

[0003] An existing patent announcement document with the number CN214321081U discloses an automatic flushing device for well sealing devices used in oil drilling, including a cleaning box. A turntable is rotatably connected to the cleaning box. A rack is fixedly connected to the outer wall of the turntable. Support columns are symmetrically fixedly connected to the top of the turntable above the rack. A water tank is fixedly connected to the top of the support columns. Spray nozzles are symmetrically fixedly connected to the bottom of the water tank. A machine box is fixedly connected to one side of the cleaning box below the spray nozzles. A motor is installed inside the machine box.

[0004] However, it still has the following drawbacks in practical use:

[0005] 1. The automatic flushing device for the well sealer mentioned above uses a motor, gears, racks, turntables, and nozzles to rotate and clean the well sealer, thereby improving its cleaning efficiency. However, during use, the nozzle is fixed at the bottom of the water tank, and the water tank is fixed above the cleaning tank by a support column. The installation position of the nozzle is fixed, which means that the cleaning position of the nozzle on the well sealer is also fixed, resulting in poor cleaning effect.

[0006] 2. The automatic flushing device for the well sealer mentioned above uses a water pump, filter head, connecting pipe and rotary joint to recycle the water after use, saving water resources. However, during use, oil droplets remaining on the well sealer will enter the water tank through the water circulation structure such as the connecting pipe. The water tank mentioned above lacks an oil-water separation structure, which causes the oil droplets in the water tank to contaminate the well sealer that is cleaned later.

[0007] To address these issues, we provide an oil well sealing device flushing apparatus. Utility Model Content

[0008] The purpose of this utility model is to provide a flushing device for oil drilling wellheads. The wellhead is rotated by a turntable, and the flushing pipe and nozzle are raised and lowered by a lifting plate, which realizes the flushing of the outer surface of the wellhead and solves the problem of poor cleaning effect in the existing system. At the same time, the water storage chamber is heated by a serpentine pipe, so that the oil floats on the water surface and the oil on the water surface is recovered by a water pumping hood, which solves the problem of inconvenience in recovering oil from the water in the existing system.

[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0010] This utility model relates to a flushing device for oil drilling sealing equipment, comprising a cleaning tank, with a cleaning chamber and a water storage chamber respectively arranged on both sides of the cleaning tank. A cleaning assembly is installed in the cleaning chamber, including a mounting plate fixedly connected to the lower part of the cleaning chamber and a turntable rotatably connected to the mounting plate. Multiple drainage holes are evenly distributed on the surface of the turntable. Mounting frames are fixedly connected to the front and rear ends of the upper surface of the mounting plate, and threaded rods are rotatably connected to each mounting frame. Slider blocks are threadedly connected to each threaded rod. A lifting plate is fixedly connected to one end of each slider located outside the mounting frame. Flushing pipes are fixedly connected to both sides of the lifting plate, and a nozzle is fixedly connected to one end of each flushing pipe. A recovery assembly is also installed inside the water storage chamber of the cleaning tank. The recovery assembly includes a cover plate fixedly connected to the top opening of the water storage chamber. Hydraulic cylinders are fixedly connected to the front and rear ends of the center of the upper surface of the cover plate. The output shaft of the hydraulic cylinder extends into the water storage chamber and is fixedly connected to the same movable plate. A water suction hood is fixedly connected below the movable plate, and a serpentine pipe with internal steam flow is fixedly connected below the water suction hood.

[0011] A further feature of this invention is that a water pump is fixedly connected to the center of the front end face of the cleaning tank, a water inlet end of the water pump is fixedly connected to a water suction pipe, the end of the water suction pipe away from the water pump extends to the lower part of the cleaning chamber of the cleaning tank, and a water outlet end of the water pump is fixedly connected to a water return pipe, the end of the water return pipe away from the water pump extends to the lower part of the water storage chamber of the cleaning tank.

[0012] A further feature of this invention is that a mounting rod is fixedly connected to the bottom center of the turntable, and the bottom end of the mounting rod extends to the lower outer side of the cleaning tank and is fixedly connected to a first bevel gear.

[0013] A further feature of this invention is that a first drive motor is fixedly connected to one side of the bottom of the cleaning tank via a first motor frame, a drive rod is fixedly connected to the output shaft of the first drive motor, and a second bevel gear is fixedly connected to the end of the drive rod away from the first drive motor, with the second bevel gear meshing below the first bevel gear.

[0014] The present invention is further configured such that: the bottom end of the threaded rod is rotatably connected to the lower interior of the mounting frame, the top end of the threaded rod extends to the upper exterior of the mounting frame and is fixedly connected to a third bevel gear, the front and rear ends of the top of the cleaning tank are fixedly connected to a second drive motor via a second motor frame, the output shaft of the second drive motor is fixedly connected to a fourth bevel gear, and the third bevel gear and the fourth bevel gear mesh with each other.

[0015] A further feature of this invention is that: mounting seats are fixedly connected to the upper and lower sides of the outer walls on both sides of the lifting plate; a collar is provided between adjacent mounting seats; a first fixing rod is welded to the top and bottom of the collar; the end of the first fixing rod away from the collar is rotatably connected to the mounting seat; the top of the upper first fixing rod passes through the upper mounting seat and is threadedly connected to a first fastening nut.

[0016] A further feature of this invention is that the top front and rear ends of the water pump cover are fixedly connected to a second fixing rod, the top end of each second fixing rod penetrates the movable plate and is threaded with a second fastening nut, and the second fastening nut is respectively attached to the front and rear ends of the upper surface of the movable plate.

[0017] A further feature of this invention is that a telescopic joint is fixedly connected to the top center of the water-drawing hood, and a first connecting pipe is fixedly connected to the top end of the telescopic joint.

[0018] A further feature of this invention is that both ends of the serpentine tube are fixedly connected to a second connecting tube, and the end of the second connecting tube away from the serpentine tube passes through both sides of the surface of the cover plate and extends to the upper outer side of the cleaning tank.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model, by setting up a cleaning component, starts a first drive motor. The output shaft of the first drive motor drives the turntable and the well sealer to rotate through the drive rod and the mounting rod. It also starts a second drive motor, which drives the threaded rod to rotate. The threaded rod drives the lifting plate and the flushing pipe to rise and fall through the slider. The flushing pipe and the nozzle flush various parts of the outer surface of the well sealer, which improves the cleaning effect of the well sealer and facilitates the flushing of the well sealer.

[0021] 2. This utility model, by setting up a recovery component, delivers steam into the serpentine tube, which heats the oil-water mixture in the water storage chamber, accelerating its separation. The hydraulic cylinder is then activated, and its output shaft drives the movable plate and the water suction hood to rise and fall, ensuring the hood remains submerged in the oil layer on the water surface. The oil layer is then extracted and recovered through the hood, preventing the oil mixed in the water from affecting subsequent cleaning work, reducing the waste of oil resources, and facilitating the flushing of the well sealer. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the cleaning component of this utility model.

[0025] Figure 3 This is a schematic diagram showing the installation of the turntable and the first drive motor of this utility model.

[0026] Figure 4 This is a structural disassembly diagram of the mounting frame, lifting plate, and flushing pipe of this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the recycling component of this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of the water pump cover of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1-Cleaning tank, 101-Water pump, 102-Suction pipe, 103-Return pipe, 2-Cleaning assembly, 201-Mounting plate, 202-Turntable, 202a-Drain hole, 202b-Mounting rod, 202c-First bevel gear, 203-First drive motor, 203a-First motor frame, 203b-Drive rod, 203c-Second bevel gear, 204-Mounting frame, 204a-Threaded rod, 204b-Third bevel gear, 204c-Slider, 205-Lifting plate, 205a-Mounting base, 2 05b-Collar, 205c-First fixing rod, 205d-First fastening nut, 206-Flush pipe, 206a-Nozzle, 207-Second drive motor, 207a-Second motor frame, 207b-Fourth bevel gear, 3-Recovery assembly, 301-Cover plate, 302-Hydraulic cylinder, 303-Moving plate, 304-Water suction hood, 304a-Second fixing rod, 304b-Second fastening nut, 304c-Expansion joint, 304d-First connecting pipe, 305-Serpentine pipe, 305a-Second connecting pipe. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this is the first embodiment of the present invention. This embodiment provides a flushing device for an oil drilling wellhead, including a cleaning tank 1. The cleaning tank 1 has a cleaning chamber and a water storage chamber on its two sides. A cleaning assembly 2 is provided in the cleaning chamber of the cleaning tank 1. The cleaning assembly 2 includes a mounting plate 201, a turntable 202, a mounting frame 204, a lifting plate 205, and a flushing pipe 206. The wellhead is rotated by the turntable 202, and the flushing pipe 206 and the nozzle 206a are raised and lowered by the lifting plate 205, thereby flushing the outer surface of the wellhead and solving the problem of poor cleaning effect in existing devices.

[0034] Specifically, the mounting plate 201 is fixedly connected to the lower interior of the cleaning chamber, and the turntable 202 is rotatably connected to the mounting plate 201. Multiple drainage holes 202a are evenly distributed on the surface of the turntable 202. Mounting frames 204 are fixedly connected to the front and rear ends of the upper surface of the mounting plate 201. Threaded rods 204a are rotatably connected inside each mounting frame 204. Slider blocks 204c are threadedly connected to each threaded rod 204a. A lifting plate 205 is fixedly connected to one end of each slider 204c located outside the mounting frame 204. Flushing pipes 206 are fixedly connected to both sides of the lifting plate 205, and one end of each flushing pipe 206 is fixedly connected to... The nozzle 206a and mounting plate 201 are used to install the turntable 202. The turntable 202 is used to place the well sealer and drive the well sealer to rotate. The drain hole 202a allows the wastewater after cleaning to flow into the lower part of the cleaning chamber. The mounting frame 204 is used to install the threaded rod 204a. The threaded rod 204a and slider 204c are used to drive the lifting plate 205 to rise and fall. The lifting plate 205 is used to drive the flushing pipe 206 and nozzle 206a to rise and fall. The flushing pipe 206 and nozzle 206a are used to flush the well sealer.

[0035] Furthermore, a water pump 101 is fixedly connected to the center of the front end face of the cleaning tank 1. The water inlet end of the water pump 101 is fixedly connected to a water suction pipe 102. The end of the water suction pipe 102 away from the water pump 101 extends to the lower part of the cleaning chamber of the cleaning tank 1. The water outlet end of the water pump 101 is fixedly connected to a water return pipe 103. The end of the water return pipe 103 away from the water pump 101 extends to the lower part of the water storage chamber of the cleaning tank 1.

[0036] A mounting rod 202b is fixedly connected to the bottom center of the turntable 202. The bottom end of the mounting rod 202b extends to the lower outer side of the cleaning tank 1 and is fixedly connected to the first bevel gear 202c.

[0037] A first drive motor 203 is fixedly connected to one side of the bottom of the cleaning tank 1 via a first motor frame 203a. A drive rod 203b is fixedly connected to the output shaft of the first drive motor 203. A second bevel gear 203c is fixedly connected to the end of the drive rod 203b away from the first drive motor 203. The second bevel gear 203c meshes with the lower part of the first bevel gear 202c.

[0038] The bottom end of the threaded rod 204a is rotatably connected to the lower interior of the mounting frame 204, and the top end of the threaded rod 204a extends to the upper exterior of the mounting frame 204 and is fixedly connected to the third bevel gear 204b. The front and rear ends of the top of the cleaning tank 1 are fixedly connected to the second drive motor 207 via the second motor frame 207a. The output shaft of the second drive motor 207 is fixedly connected to the fourth bevel gear 207b. The third bevel gear 204b and the fourth bevel gear 207b mesh with each other.

[0039] Mounting bases 205a are fixedly connected to the upper and lower sides of the outer walls on both sides of the lifting plate 205. A collar 205b is provided between adjacent mounting bases 205a. A first fixing rod 205c is welded to the top and bottom of the collar 205b. The end of the first fixing rod 205c away from the collar 205b is rotatably connected to the mounting base 205a. The top of the first fixing rod 205c located at the top passes through the mounting base 205a located at the top and is threadedly connected to a first fastening nut 205d.

[0040] The operation process of this embodiment is as follows: the first drive motor 203 is started, and the output shaft of the first drive motor 203 drives the turntable 202 and the well sealer to rotate through the drive rod 203b and the mounting rod 202b. The second drive motor 207 is started, and the second drive motor 207 drives the threaded rod 204a to rotate. The threaded rod 204a drives the lifting plate 205 and the flushing pipe 206 to rise and fall through the slider 204c. The flushing pipe 206 and the nozzle 206a flush various parts of the outer surface of the well sealer.

[0041] Example 2

[0042] Please see Figure 1 , Figure 5 and Figure 6 As shown, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: the water storage chamber of the cleaning tank 1 is also provided with a recovery component 3. The recovery component 3 includes a cover plate 301, a hydraulic cylinder 302, a movable plate 303, a water suction hood 304, and a serpentine tube 305. The serpentine tube 305 heats the water storage chamber, causing the oil to float on the water surface, and the water suction hood 304 recovers the oil on the water surface, thus solving the problem of the inconvenience of recovering oil from the water in the existing system.

[0043] Specifically, the cover plate 301 is fixedly connected to the top opening of the water storage chamber. Hydraulic cylinders 302 are fixedly connected to the front and rear ends of the center of the upper surface of the cover plate 301. The output shaft of the hydraulic cylinder 302 extends into the interior of the water storage chamber and is fixedly connected to the same movable plate 303. A water suction hood 304 is fixedly connected below the movable plate 303. A serpentine pipe 305, through which steam flows, is also fixedly connected below the water suction hood 304. The cover plate 301 is used to seal the water storage chamber of the cleaning tank 1. The hydraulic cylinder 302 is used to drive the movable plate 303 to rise and fall. The movable plate 303 is used to install the water suction hood 304 and drive it to rise and fall, ensuring that the water suction hood 304 is always submerged in the oil layer on the water surface. The water suction hood 304 is connected to an external water pump to recover the oil on the water surface. The serpentine pipe 305 is used to heat the water, accelerating oil-water separation.

[0044] Furthermore, the top front and rear ends of the water pump cover 304 are fixedly connected with second fixing rods 304a. The top ends of the second fixing rods 304a penetrate the movable plate 303 and are threaded with second fastening nuts 304b. The second fastening nuts 304b are respectively attached to the front and rear ends of the upper surface of the movable plate 303.

[0045] The top center of the water-drawing cover 304 is fixedly connected to the expansion joint 304c, and the top end of the expansion joint 304c is fixedly connected to the first connecting pipe 304d; both ends of the serpentine pipe 305 are fixedly connected to the second connecting pipe 305a, and the end of the second connecting pipe 305a away from the serpentine pipe 305 passes through both sides of the surface of the cover plate 301 and extends to the upper outer side of the cleaning tank 1.

[0046] The rest of the structure is the same as in Example 1.

[0047] The operation process of this embodiment is as follows: Steam is supplied into the serpentine tube 305 to heat the oil-water mixture in the water storage chamber through the serpentine tube 305, thereby accelerating its separation. The hydraulic cylinder 302 is activated, and the output shaft of the hydraulic cylinder 302 drives the movable plate 303 and the water suction hood 304 to rise and fall, so that the water suction hood 304 is always submerged in the oil layer on the water surface. The oil layer on the water surface is extracted and recovered through the water suction hood 304, thus avoiding the oil mixed in the water from affecting the subsequent cleaning work.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0049] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, enabling those skilled in the art to better understand and utilize it.

Claims

1. A flushing device for a petroleum drilling well packer, comprising a cleaning tank (1), characterized in that: The cleaning tank (1) has a cleaning chamber and a water storage chamber on its two sides. A cleaning assembly (2) is installed inside the cleaning chamber of the cleaning tank (1). The cleaning assembly (2) includes a mounting plate (201) fixedly connected to the lower part of the cleaning chamber and a turntable (202) rotatably connected to the mounting plate (201). Multiple drainage holes (202a) are evenly distributed on the surface of the turntable (202). Mounting frames (204) are fixedly connected to the front and rear ends of the upper surface of the mounting plate (201). Threaded rods (204a) are rotatably connected inside the mounting frames (204). Slider blocks (204c) are threadedly connected to the threaded rods (204a). A lifting plate is fixedly connected to one end of each slider (204c) located outside the mounting frame (204). 205), both sides of the lifting plate (205) are fixedly connected to flushing pipes (206), and one end of each flushing pipe (206) is fixedly connected to a nozzle (206a). The water storage chamber of the cleaning tank (1) is also provided with a recovery component (3), and the recovery component (3) includes a cover plate (301) fixedly connected to the top opening of the water storage chamber. The front and rear ends of the upper surface of the cover plate (301) are fixedly connected to hydraulic cylinders (302), and the output shaft of the hydraulic cylinder (302) extends into the interior of the water storage chamber and is fixedly connected to the same movable plate (303). A water suction hood (304) is fixedly connected below the movable plate (303), and a serpentine pipe (305) with steam flowing inside is fixedly connected below the water suction hood (304).

2. A flushing device for a well packer for oil drilling according to claim 1, characterized in that A water pump (101) is fixedly connected to the center of the front end face of the cleaning tank (1), and the water inlet end of the water pump (101) is fixedly connected to a water suction pipe (102). The end of the water suction pipe (102) away from the water pump (101) extends to the lower part of the cleaning chamber of the cleaning tank (1), and the water outlet end of the water pump (101) is fixedly connected to a water return pipe (103). The end of the water return pipe (103) away from the water pump (101) extends to the lower part of the water storage chamber of the cleaning tank (1).

3. A flushing device for a well packer for oil drilling according to claim 1, characterized in that A mounting rod (202b) is fixedly connected to the bottom center of the turntable (202), and the bottom end of the mounting rod (202b) extends to the lower outer side of the cleaning tank (1) and is fixedly connected to a first bevel gear (202c).

4. A flushing device for a well packer for oil drilling according to claim 3, characterized in that The bottom side of the cleaning tank (1) is fixedly connected to a first drive motor (203) via a first motor frame (203a), and the output shaft of the first drive motor (203) is fixedly connected to a drive rod (203b). The end of the drive rod (203b) away from the first drive motor (203) is fixedly connected to a second bevel gear (203c), and the second bevel gear (203c) meshes with the bottom of the first bevel gear (202c).

5. A flushing device for a well packer for oil drilling according to claim 1, characterized in that The bottom end of the threaded rod (204a) is rotatably connected to the lower interior of the mounting frame (204), and the top end of the threaded rod (204a) extends to the upper exterior of the mounting frame (204) and is fixedly connected to a third bevel gear (204b). The front and rear ends of the top of the cleaning tank (1) are fixedly connected to a second drive motor (207) via a second motor frame (207a), and the output shaft of the second drive motor (207) is fixedly connected to a fourth bevel gear (207b). The third bevel gear (204b) and the fourth bevel gear (207b) mesh with each other.

6. A flushing device for a well packer for oil drilling according to claim 1, characterized in that Mounting seats (205a) are fixedly connected to the upper and lower sides of the outer walls on both sides of the lifting plate (205), and a collar (205b) is provided between the upper and lower adjacent mounting seats (205a). A first fixing rod (205c) is welded to the top and bottom of the collar (205b), and the end of the first fixing rod (205c) away from the collar (205b) is rotatably connected to the mounting seat (205a). The top end of the first fixing rod (205c) located at the top passes through the mounting seat (205a) located at the top and is threadedly connected to a first fastening nut (205d).

7. A flushing device for a well packer for oil drilling according to claim 1, characterized in that The top front and rear ends of the water pump cover (304) are fixedly connected with second fixing rods (304a), and the top ends of the second fixing rods (304a) penetrate the movable plate (303) and are threaded with second fastening nuts (304b). The second fastening nuts (304b) are respectively attached to the front and rear ends of the upper surface of the movable plate (303).

8. The oil well sealing device flushing apparatus according to claim 7, characterized in that, The top center of the water pump cover (304) is fixedly connected to an expansion joint (304c), and the top end of the expansion joint (304c) is fixedly connected to a first connecting pipe (304d).

9. A flushing device for a well packer for oil drilling according to claim 1, characterized in that Both ends of the serpentine tube (305) are fixedly connected to a second connecting tube (305a), and the end of the second connecting tube (305a) away from the serpentine tube (305) passes through both sides of the surface of the cover plate (301) and extends to the upper outer side of the cleaning tank (1).

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