Paraffin removal and control equipment for oil well

Abstract

The utility model discloses paraffin removal and control equipment for an oil well, which relates to the technical field of oil wells and comprises a support frame erected at the top of the oil well, a paraffin removal mechanism is mounted on the support frame, moving mechanisms are arranged at two ends of the support frame, and the paraffin removal mechanism comprises a first hydraulic cylinder. A supporting rod is fixedly connected to an output shaft of the first hydraulic cylinder, a fixing plate is fixedly connected to the supporting rod, a second hydraulic cylinder is fixedly connected to the fixing plate, and a heating cover is fixedly connected to the end of an output shaft of the second hydraulic cylinder. According to the paraffin removal and control equipment for the oil well, a heating cover is lowered into the oil well through a first hydraulic cylinder, paraffin is heated and softened through the heating cover, after the paraffin is softened, a second hydraulic cylinder drives the heating cover to move, a scraping plate is exposed, then an air pump conducts ventilation so that the scraping plate can abut against the inner wall of the oil well, and a driving motor drives the scraping plate to rotate; and the softened paraffin is scraped off, so that the paraffin removal efficiency and effect can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil wells, in particular to a wax cleaning and prevention device for oil wells. Background Art

[0002] Thermal wax removal is generally used to remove the wax from the inner wall of an oil well. A heating device is used to remove the wax. In the prior art, the heating process of the wax removal device for oil wells is relatively slow during use, and the wax removal effect and efficiency are not ideal.

[0003] For example, patent announcement number CN211715102U specifically discloses a device for cleaning and preventing wax in oil wells, which comprises: an oil well wall, a group of inverted U-shaped clamping parts connected to the top of the oil well wall, a group of top fixing holes opened around the circumference of the top of the oil well wall, a top through hole opened in the middle part of the inverted U-shaped clamping part, both sides of the through hole are connected to the top expansion hole, the top through hole clamps the top fixing hole and is connected with bolts for fixing, both sides of the bolts are buried in the top expansion hole, the inner side of the inverted U-shaped clamping part is connected to a semicircular buckle plate, the semicircular buckle plate buckles the electric heating wire, the electric heating wires are connected by wires, the wires are connected to a thermostat, the thermostat is connected to a power supply, the bottom of the semicircular buckle plate is fixedly connected to a bottom closing plate, the semicircular buckle plate and the bottom closing plate close the electric heating wire, the utility model is used for cleaning and preventing wax in oil wells, and there is a problem that during the use of the wax cleaning device for oil wells, the heating process is relatively slow, and the removal effect and efficiency of paraffin are not ideal. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a paraffin removal and prevention device for oil wells, which solves the problem that the heating process of the paraffin removal device of the oil well is relatively slow during use, and the paraffin removal effect and efficiency are not ideal.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a wax cleaning and prevention device for oil wells, comprising a support frame erected on the top of the oil well, a wax cleaning mechanism installed on the support frame, and moving mechanisms at both ends of the support frame;

[0006] The wax cleaning mechanism includes a first hydraulic cylinder, a support rod is fixedly connected to the output shaft of the first hydraulic cylinder, a fixed plate is fixedly connected to the support rod, a second hydraulic cylinder is fixedly connected to the fixed plate, a heating hood is fixedly connected to the output shaft end of the second hydraulic cylinder, a plurality of heating wires are fixedly connected to the heating hood, a rotating arm is rotatably connected to the bottom end of the support rod, a driven gear is fixedly connected to the rotating arm, a driving gear is provided on one side of the driven gear, a driving motor is fixedly connected to the end of the driving gear, a connecting air pipe is connected to the rotating arm via a rotating joint, two pistons are slidably connected inside the rotating arm, both ends of the two pistons are fixedly connected to connecting rods, a scraper is fixedly connected to the end of the connecting rod, and a return spring is provided on the connecting rod.

[0007] Preferably, the first hydraulic cylinder is fixedly mounted on the support frame, and the first hydraulic cylinder is detachably connected to the support frame.

[0008] Preferably, the support rod and the heating cover are interpenetratingly arranged, and the heating cover is arranged between the fixing plate and the rotating arm.

[0009] Preferably, a mounting frame is fixedly mounted on the support rod, the mounting frame matches the drive motor, and the mounting frame is detachably connected to the drive motor and the support rod.

[0010] Preferably, the end of the connecting air pipe is fixedly connected to an air pump, and the air pump is fixedly mounted on a supporting frame.

[0011] Preferably, the end of the connecting rod passes through the rotating arm and partially extends to the outside thereof, and the two ends of the return spring are fixedly connected to the inner wall of the rotating arm and the piston respectively.

[0012] Preferably, the moving mechanism comprises a moving seat, and a universal wheel is installed at the bottom of the moving seat.

[0013] Preferably, a stabilizing nut is fixedly connected to the movable seat, a stabilizing screw is threadedly connected to the inside of the stabilizing nut, a stabilizing handwheel is fixedly connected to the top end of the stabilizing screw, and a stabilizing foot is fixedly connected to the bottom end of the stabilizing screw.

[0014] Beneficial Effects

[0015] The utility model provides a wax removal and prevention device for oil wells. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The wax cleaning and preventing equipment for oil wells uses a first hydraulic cylinder to lower a heating hood into the oil well. The heating wire works through the heating hood to heat and soften the paraffin. After the paraffin is softened, the second hydraulic cylinder drives the heating hood to move to expose the scraper. Then, the air pump ventilates the scraper so that the scraper is close to the inner wall of the oil well. The drive motor drives the scraper to rotate to scrape off the softened paraffin, thereby effectively improving the wax cleaning efficiency and effect.

[0017] 2. The wax cleaning and prevention equipment for oil wells can conveniently move the support frame through the universal wheel, and then turn the stabilizing hand wheel. The rotation of the stabilizing hand wheel drives the stabilizing screw to rotate. The stabilizing screw cooperates with the stabilizing nut to drive the stabilizing foot to move down and fix the support frame, thereby effectively improving the convenience of movement and stability during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the wax cleaning mechanism structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure between the rotating arm and the supporting rod of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the mobile mechanism of the utility model.

[0022] In the figure: 1. support frame; 2. wax cleaning mechanism; 201. support rod; 202. fixed plate; 203. second hydraulic cylinder; 204. heating cover; 205. heating wire; 206. rotating arm; 207. driven gear; 208. driving gear; 209. driving motor; 210. piston; 211. connecting air pipe; 212. connecting rod; 213. scraper; 214. reset spring; 3. oil well; 4. moving mechanism; 401. moving seat; 402. universal wheel; 403. stabilizing nut; 404. stabilizing screw; 405. stabilizing handwheel; 406. stabilizing foot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] See also Figure 1-3The utility model provides a technical solution: a wax cleaning and prevention device for oil wells, comprising a support frame 1 erected on the top of an oil well 3, a wax cleaning mechanism 2 being installed on the support frame 1, the wax on the inner wall of the oil well 3 can be heated by the wax cleaning mechanism 2, and the wax can be scraped off after being heated to a softened state, thereby effectively improving the wax cleaning efficiency and effect.

[0026] The wax cleaning mechanism 2 includes a first hydraulic cylinder, which is fixedly mounted on the support frame 1, and the first hydraulic cylinder is detachably connected to the support frame 1, which is convenient for replacement and maintenance of the first hydraulic cylinder. A support rod 201 is fixedly connected to the output shaft of the first hydraulic cylinder, a fixed plate 202 is fixedly connected to the support rod 201, a second hydraulic cylinder 203 is fixedly connected to the fixed plate 202, a heating cover 204 is fixedly connected to the output shaft end of the second hydraulic cylinder 203, the support rod 201 and the heating cover 204 are arranged through, and the heating cover 204 is arranged between the fixed plate 202 and the rotating arm 206, a plurality of heating wires 205 are fixedly connected to the heating cover 204, and a temperature controller is provided, which can play a good role in softening paraffin and is convenient for temperature control. The bottom end of the support rod 201 is rotatably connected to a rotating arm 206, and a driven gear 207 is fixedly connected to the rotating arm 206. A driving gear 208 is provided on one side of the driven gear 207, and a driving motor 209 is fixedly connected to the end of the driving gear 208. A mounting frame is fixedly installed on the support rod 201, and the mounting frame matches the driving motor 209. The mounting frame, the driving motor 209 and the support rod 201 are detachably connected, which can facilitate the fixing of the driving motor 209. A connecting air pipe 211 is connected to the rotating arm 206 through a rotating joint. The rotating joint allows gas to pass into the interior of the rotating arm 206 through the connecting air pipe 211 during the rotation of the rotating arm 206, which will not hinder or affect the rotation of the rotating arm 206. An air pump (not shown in the figure) is fixedly connected to the end 211, and the air pump is fixedly installed on the support frame 1. The air pump can be used to pass gas into the interior of the rotating arm 206, so as to push the piston 210 to move. Two pistons 210 are slidably connected to the interior of the rotating arm 206, and the ends of the two pistons 210 are fixedly connected to a connecting rod 212. The end of the connecting rod 212 passes through the rotating arm 206 and partially extends to the outside thereof. A scraper 213 is fixedly connected to the end of the connecting rod 212. A reset spring 214 is provided on the connecting rod 212. The two ends of the reset spring 214 are respectively fixedly connected to the inner wall of the rotating arm 206 and the piston 210, so as to reset the scraper 213. The support rod 201 can be driven to move by the first hydraulic cylinder. The support rod 201 moves The heating cover 204 is driven to move, and the heating cover 204 is lowered into the oil well 3. The heating wire 205 works to heat and soften the paraffin through the heating cover 204. After the paraffin is softened, the second hydraulic cylinder 203 drives the heating cover 204 to move, exposing the scraper 213. Then the air pump introduces gas into the rotating arm 206 through the connecting air pipe 211. The gas pushes the piston 210 to move. The movement of the piston 210 drives the connecting rod 212 to move. The movement of the connecting rod 212 drives the scraper 213 to move, so that the scraper 213 is close to the inner wall of the oil well 3. Then the output shaft of the driving motor 209 drives the driving gear 208 to rotate. The driving gear 208 rotates to drive the driven gear 207 to rotate. The driven gear 207 rotates to drive the rotating arm 206.The rotation of the rotating arm 206 drives the scraper 213 to rotate, scraping off the softened paraffin, thereby effectively improving the efficiency and effect of wax removal.

[0027] Embodiment 2 is different from Embodiment 1 in that:

[0028] See also Figure 1 and Figure 4 A moving mechanism 4 is provided at both ends of the support frame 1. The moving mechanism 4 includes a moving seat 401. A universal wheel 402 is installed at the bottom of the moving seat 401. The universal wheel 402 facilitates the movement of the support frame 1.

[0029] Embodiment 3 is different from Embodiments 1 and 2 in that:

[0030] See also Figure 1 and Figure 4 A stabilizing nut 403 is fixedly connected to the movable seat 401, and a stabilizing screw 404 is threadedly connected to the inner side of the stabilizing nut 403. A stabilizing handwheel 405 is fixedly connected to the top of the stabilizing screw 404, and a stabilizing foot 406 is fixedly connected to the bottom end of the stabilizing screw 404. The stabilizing handwheel 405 can be then rotated, and the stabilizing handwheel 405 drives the stabilizing screw 404 to rotate. The stabilizing screw 404 cooperates with the stabilizing nut 403 to drive the stabilizing foot 406 to move downward, thereby fixing the support frame 1, thereby effectively improving the convenience of movement and stability during work.

[0031] During operation, the first hydraulic cylinder drives the support rod 201 to move, and the movement of the support rod 201 drives the heating cover 204 to move, and the heating cover 204 is lowered into the oil well 3. The heating wire 205 works to heat and soften the paraffin through the heating cover 204. After the paraffin is softened, the second hydraulic cylinder 203 drives the heating cover 204 to move, and the scraper 213 is exposed. Then the air pump passes gas into the rotating arm 206 through the connecting air pipe 211, and the gas pushes the piston 210 to move. The movement of the piston 210 drives the connecting rod 212 to move, and the movement of the connecting rod 212 drives the scraper 213 to move, so that the scraper 213 is close to the inner wall of the oil well 3. Then the output shaft of the driving motor 209 drives the active gear 208 to rotate, and the active gear 208 rotates to drive the driven gear 207 to rotate, and the driven gear 207 rotates to drive the rotating arm 206 to rotate, and the rotating arm 206 rotates to drive the scraper 213 to rotate, and the softened paraffin is scraped off, thereby effectively improving the wax cleaning efficiency and effect.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A wax removal and prevention device for oil wells, comprising a support frame (1) erected on the top of an oil well (3), characterized in that: A wax cleaning mechanism (2) is installed on the support frame (1), and moving mechanisms (4) are provided at both ends of the support frame (1); The wax removal mechanism (2) comprises a first hydraulic cylinder, a support rod (201) is fixedly connected to the output shaft of the first hydraulic cylinder, a fixed plate (202) is fixedly connected to the support rod (201), a second hydraulic cylinder (203) is fixedly connected to the fixed plate (202), a heating cover (204) is fixedly connected to the output shaft end of the second hydraulic cylinder (203), a plurality of heating wires (205) are fixedly connected to the heating cover (204), a rotating arm (206) is rotatably connected to the bottom end of the support rod (201), and a A driven gear (207) is provided on one side of the driven gear (207), a driving gear (208) is fixedly connected to the end of the driving gear (208) with a driving motor (209), the rotating arm (206) is connected to a connecting air pipe (211) via a rotating joint, two pistons (210) are slidably connected inside the rotating arm (206), the ends of the two pistons (210) are fixedly connected to connecting rods (212), the ends of the connecting rods (212) are fixedly connected to a scraper (213), and a return spring (214) is provided on the connecting rod (212).

2. The wax removal and prevention equipment for oil wells according to claim 1, characterized in that: The first hydraulic cylinder is fixedly mounted on the support frame (1), and the first hydraulic cylinder and the support frame (1) are detachably connected.

3. The wax removal and prevention equipment for oil wells according to claim 1, characterized in that: The support rod (201) and the heating cover (204) are intersectingly arranged, and the heating cover (204) is arranged between the fixing plate (202) and the rotating arm (206).

4. The wax removal and prevention equipment for oil wells according to claim 1, characterized in that: A mounting frame is fixedly mounted on the support rod (201), the mounting frame matches the drive motor (209), and the mounting frame is detachably connected to the drive motor (209) and the support rod (201).

5. The wax removal and prevention equipment for oil wells according to claim 1, characterized in that: The end of the connecting air pipe (211) is fixedly connected to an air pump, and the air pump is fixedly mounted on the support frame (1).

6. The wax removal and prevention equipment for oil wells according to claim 1, characterized in that: The end of the connecting rod (212) passes through the rotating arm (206) and partially extends to the outside thereof, and the two ends of the return spring (214) are fixedly connected to the inner wall of the rotating arm (206) and the piston (210) respectively.

7. The wax removal and prevention equipment for oil wells according to claim 1, characterized in that: The moving mechanism (4) comprises a moving seat (401), and a universal wheel (402) is installed at the bottom of the moving seat (401).

8. The wax removal and prevention equipment for oil wells according to claim 7, characterized in that: The movable seat (401) is fixedly connected with a stabilizing nut (403), the internal thread of the stabilizing nut (403) is connected with a stabilizing screw rod (404), the top end of the stabilizing screw rod (404) is fixedly connected with a stabilizing hand wheel (405), and the bottom end of the stabilizing screw rod (404) is fixedly connected with a stabilizing foot (406).

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