Circulating sand pumping device for oil field drilling

Abstract

The utility model discloses a circulating sand pumping device for oilfield drilling, and relates to the technical field of sand pumping devices. According to the circulating sand pumping device for oil field drilling, a first motor works to drive a rotating shaft to rotate, a first connecting rod and a second connecting rod drive a first scraping plate and a second scraping plate to rotate, the surface of a first filter screen and the inner wall of a filter box are continuously cleaned, and attachment of oil-containing silt is avoided; a second motor works to drive a spiral blade to rotate, the silt is conveyed and extruded, most of water in the silt flows out of the extrusion pipe from a second filter screen through extrusion and is gathered at the lower end of a collecting bin, and therefore the silt can be collected through the second filter screen. Sediment falls into the collecting box from the front end of the extrusion pipe, and after the gravel is fully drained in the collecting box, the collecting box can be taken out through the handle, and centralized treatment is conducted on the gravel.

Description

Technical Field

[0001] The utility model relates to the technical field of sand pumping devices, in particular to an oilfield drilling circulating sand pumping device. Background Art

[0002] In the middle and late stages of oil field exploitation, sand production from oil wells directly affects the crude oil production of the oil wells. It is necessary to pump out the sand accumulated in the oil wells, which involves the use of oil field drilling circulating sand pumping equipment.

[0003] For example, publication number CN219974473U discloses an oilfield drilling circulating sand pumping device, comprising a bottom plate, four support rods are fixedly provided at the top of the bottom plate, and a filter box is provided at the top of the four support rods. The beneficial effects of the utility model are as follows: the motor is started, and the transmission shaft of the motor drives the rotating rod to rotate, thereby driving the scraper on the fourth fixed seat to rotate, and the sand and gravel attached to the inner wall of the filter box are scraped off by the scraper to realize automatic cleaning of the filter box. When too much sand and gravel are accumulated in the filter box, the sealing plug is removed, and the sand and gravel are discharged into the collection box through the first fixed pipe, and the sand and gravel at the first fixed pipe are stirred by the stirring blades, and the sand and gravel are concentrated at the first fixed pipe by the sand collecting bucket, so as to facilitate the smooth discharge of the sand and gravel. After the sand discharge is completed, the first fixed pipe is sealed by the sealing plug, and the electric valve and the first water pump are started, and the water in the collection box is pumped into the filter box by the first water pump, so as to reduce the waste of water.

[0004] The oilfield drilling circulating sand pumping device in the utility model lacks the function of cleaning the filter, which makes it easy for oil-containing mud and sand to adhere to the surface of the filter, reducing the filtering efficiency. At the same time, it lacks the function of squeezing the sand and gravel in the collection box, resulting in the water in the collection box cannot be discharged quickly, affecting the sand discharge efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an oilfield drilling circulating sand pumping device, which solves the problem that the oilfield drilling circulating sand pumping device lacks a cleaning function for the filter, which causes oil-containing mud and sand to easily adhere to the surface of the filter, thereby reducing the filtration efficiency. At the same time, it lacks a squeezing function for sand and gravel in the collection box, which causes the water in the collection box to be unable to be quickly discharged, affecting the sand discharge efficiency.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an oilfield drilling circulating sand pumping device, comprising a filter box, a water suction pipe is arranged on the left side of the filter box, a water pump 1 is arranged on the rear side of the filter box, a filter screen 1 is fixedly installed on the inner side of the filter box, a motor 1 is fixedly installed on the upper end of the filter box, the output end of the motor 1 extends to the inner side of the filter box and a rotating shaft is arranged, a scraper 1 and a scraper 2 are arranged on the outer side of the rotating shaft, a collecting bin is fixedly installed on the lower end of the filter box, an extrusion tube is arranged on the inner side of the collecting bin, a blocking block is arranged on the upper end of the extrusion tube, a screw rod is threadedly connected to the inner side of the blocking block, a limiting bin is arranged on the outer side of the front end of the blocking block, a spiral blade is arranged on the inner side of the extrusion tube, and a collecting box is arranged at the front end of the collecting bin.

[0007] Preferably, the left end of the filter box and the inner side of the water pump are connected to each other through a pipe, the input end of the water pump 1 and the inner side of the upper end of the filter box are connected to each other through a pipe, and the output end of the water pump 1 and the inner side of the water pump are connected to each other through a pipe, so as to facilitate circulating sand pumping.

[0008] Preferably, the rotating shaft extends to the lower end of filter screen one and is rotatably connected to filter screen one through a bearing, the upper end of scraper one and the lower end of filter screen one are adapted to each other, and the lower end of scraper one and the rotating shaft are fixedly connected through a connecting rod one, so as to facilitate cleaning of the surface of filter screen one.

[0009] Preferably, the upper end of the scraper 2 is fixedly connected to the connecting rod 1, and the lower end of the scraper 2 is fixedly connected to the rotating shaft through the connecting rod 2. The scraper 2 is arranged in a spiral structure and is adapted to the inner side of the filter box to facilitate cleaning of the inner wall of the filter box.

[0010] Preferably, the lower end of the filter box is arranged in a bucket-shaped structure, and extends to the inner side of the collecting bin and is connected with the upper end of the extrusion tube, the rear end of the blocking block extends to the inner side of the filter box and is sealed with the inner side of the lower end of the filter box, the rear end of the limiting bin and the inner side of the filter box are connected with each other, the blocking block is slidingly connected with the inner side of the limiting bin, the front end of the screw rod is rotatably connected with the inner side of the limiting bin, and a crank handle is provided extending to the outside of the collecting bin, which is convenient for controlling the rotation of the screw rod to drive the movement of the blocking block and realize the opening and closing of the lower end of the filter box.

[0011] Preferably, the extrusion tube is arranged in a structure that is narrow at the front and wide at the rear, a filter screen 2 is fixedly installed at the lower end of the extrusion tube, a motor 2 is fixedly installed at the rear end of the extrusion tube, the output end of the motor 2 extends to the inner side of the extrusion tube and is fixedly connected to the rear end of the spiral blade, the spiral blade and the inner side of the extrusion tube and the upper end of the filter screen 2 are adapted to each other, so as to facilitate the control of the rotation of the spiral blade to extrude and transport the mud and sand.

[0012] Preferably, a handle is provided at the front end of the collecting box extending to the front side of the collecting bin, the left and right sides of the collecting box and the inner side of the collecting bin are slidably connected by a slide rail, the upper end of the collecting box and the front end of the extrusion tube are adapted to each other, a filter screen three is fixedly installed at the lower end of the collecting box, a water pump two is connected to the right side of the collecting bin, the output end of the water pump two and the inner side of the filter box are connected to each other through a return pipe, and an electric valve is provided at the upper end of the return pipe to facilitate the centralized collection of mud and sand and the recovery of water.

[0013] Beneficial Effects

[0014] The utility model provides an oilfield drilling circulating sand pumping device. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The oilfield drilling circulating sand pumping device is provided with a filter screen 1, a motor 1, a rotating shaft, a connecting rod 1, a connecting rod 2, a scraper 1 and a scraper 2. The motor 1 drives the rotating shaft to rotate, so that the connecting rods 1 and 2 drive the scrapers 1 and 2 to rotate, and the surface of the filter screen 1 and the inner wall of the filter box are continuously cleaned to avoid the adhesion of oil-containing sediment.

[0016] 2. The oilfield drilling circulating sand pumping device is provided with a collecting bin, an extrusion tube, a second filter, a blocking block, a screw rod, a crank handle, a limiting bin, a spiral blade, a second motor, a collecting box, a handle, and a third filter. The screw rod is driven to rotate by rotating the crank handle, so that the blocking block slides along the limiting bin under the action of the thread, and the seal on the lower end of the filter box is released, so that the mud and sand inside the filter box falls into the extrusion tube. The spiral blade is driven to rotate by the work of the second motor to transport and extrude the mud and sand. Most of the water in the mud and sand flows out of the extrusion tube from the second filter screen through extrusion and gathers at the lower end of the collecting bin. The mud and sand falls into the collecting box from the front end of the extrusion tube, and the remaining water is also gathered at the bottom of the collecting bin through the third filter screen. After the sand and gravel are fully drained in the collecting box, the collecting box can be taken out by the handle, and the sand and gravel can be processed centrally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view and half section structure of the filter box of the utility model;

[0019] Figure 3 It is a right side half-section structural schematic diagram of the filter box and collection bin of the utility model.

[0020] In the figure: 1. filter box; 2. suction pipe; 3. water pump 1; 4. filter screen 1; 5. motor 1; 6. rotating shaft; 61. connecting rod 1; 62. connecting rod 2; 7. scraper 1; 8. scraper 2; 9. collecting bin; 91. water pump 2; 92. return pipe; 93. electric valve; 10. extrusion tube; 101. filter screen 2; 11. blocking block; 12. screw rod; 121. crank handle; 13. limit bin; 14. spiral blade; 141. motor 2; 15. collecting box; 151. handle; 152. filter screen 3. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3 The utility model provides a technical solution: an oilfield drilling circulating sand pumping device, comprising a filter box 1, a water pumping pipe 2 is arranged on the left side of the filter box 1, a water pump 3 is arranged on the rear side of the filter box 1, the left end of the filter box 1 and the inner side of the water pumping pipe 2 are connected to each other through a pipeline, the input end of the water pump 3 and the inner side of the upper end of the filter box 1 are connected to each other through a pipeline, the output end of the water pump 3 and the inner side of the water pumping pipe 2 are connected to each other through a pipeline, a filter screen 4 is fixedly installed on the inner side of the filter box 1, the water pump 3 drives the silt and water from the water pumping pipe 2 into the filter box 1, and after being filtered by the filter screen 4, the silt and water are returned to the water pump 2 through the water pump 3, so as to realize the circulating sand pumping of the oil well;

[0023] A motor 5 is fixedly installed on the upper end of the filter box 1, and the output end of the motor 5 extends to the inner side of the filter box 1 and is provided with a rotating shaft 6. A scraper 1 7 and a scraper 2 8 are provided on the outer side of the rotating shaft 6. The rotating shaft 6 extends to the lower end of the filter screen 4 and is rotatably connected to the filter screen 4 through a bearing. The upper end of the scraper 7 and the lower end of the filter screen 4 are adapted to each other, and the lower end of the scraper 7 and the rotating shaft 6 are fixedly connected through a connecting rod 1 61, and the upper end of the scraper 2 8 is fixedly connected to the connecting rod 1 61, and the lower end of the scraper 2 8 and the rotating shaft 6 are fixedly connected through a connecting rod 2 62. The scraper 2 8 is arranged in a spiral structure and is adapted to the inner side of the filter box 1. The rotating shaft 6 is driven to rotate by the operation of the motor 5, so that the connecting rod 1 61 and the connecting rod 2 62 drive the scraper 1 7 and the scraper 2 8 to rotate, so as to continuously clean the surface of the filter screen 4 and the inner wall of the filter box 1 to avoid the adhesion of oily sediment.

[0024] A collecting bin 9 is fixedly installed at the lower end of the filter box 1, an extrusion tube 10 is arranged on the inner side of the collecting bin 9, a blocking block 11 is arranged on the upper end of the extrusion tube 10, a screw rod 12 is threadedly connected to the inner side of the blocking block 11, a limiting bin 13 is arranged on the outer side of the front end of the blocking block 11, the lower end of the filter box 1 is arranged in a bucket-shaped structure, and extends to the inner side of the collecting bin 9 and is connected to the upper end of the extrusion tube 10, the rear end of the blocking block 11 extends to the inner side of the filter box 1, and is sealed and connected to the inner side of the lower end of the filter box 1, the rear end of the limiting bin 13 is connected to the inner side of the filter box 1, the blocking block 11 is slidably connected to the inner side of the limiting bin 13, the front end of the screw rod 12 and the limiting bin 13 are connected to each other, and the inner side of the limiting bin 13 is connected to the inner side of the limiting bin 13. The inner side of the position bin 13 is rotatably connected, and a crank handle 121 is provided on the outer side of the collecting bin 9. A spiral blade 14 is provided on the inner side of the extrusion tube 10. The extrusion tube 10 is arranged in a structure that is narrow at the front and wide at the back. A filter screen 101 is fixedly installed at the lower end of the extrusion tube 10. A motor 141 is fixedly installed at the rear end of the extrusion tube 10. The output end of the motor 141 extends to the inner side of the extrusion tube 10 and is fixedly connected to the rear end of the spiral blade 14. The spiral blade 14 and the inner side of the extrusion tube 10 and the upper end of the filter screen 101 are adapted to each other. A collection box 15 is provided at the front end of the collecting bin 9. The front end of the collection box 15 extends to the front side of the collecting bin 9. There is a handle 151, the left and right sides of the collection box 15 and the inner side of the collection bin 9 are slidably connected by a slide rail, the upper end of the collection box 15 and the front end of the extrusion tube 10 are adapted to each other, and the lower end of the collection box 15 is fixedly installed with a filter screen 3 152, the right side of the collection bin 9 is connected to a water pump 2 91, the output end of the water pump 2 91 and the inner side of the filter box 1 are connected to each other through a return pipe 92, and an electric valve 93 is provided at the upper end of the return pipe 92. By turning the crank 121 to drive the screw rod 12 to rotate, the block 11 slides along the limit bin 13 under the action of the thread, and the seal of the lower end of the filter box 1 is released, so that the sediment inside the filter box 1 falls into the extrusion tube 10. Inside, the spiral blade 14 is driven to rotate by the motor 2 141 to transport and squeeze the silt. Most of the water in the silt flows out of the squeezing tube 10 from the filter 2 101 after squeezing, and gathers at the lower end of the collecting bin 9. The silt falls into the collecting box 15 from the front end of the squeezing tube 10, and the remaining water is also gathered at the bottom of the collecting bin 9 through the filter 3 152. After the sand and gravel are fully drained in the collecting box 15, the collecting box 15 can be taken out through the handle 151, and the sand and gravel can be centrally processed. Subsequently, the water pump 2 91 and the electric valve 93 can be turned on to return the water in the collecting bin 9 through the return pipe 92 to avoid waste of water resources.

[0025] During use, the water pump 3 drives the silt and water from the water pumping pipe 2 into the filter box 1, and after being filtered by the filter screen 4, the silt and water are returned to the water pumping pipe 2 through the water pump 3, so as to realize the circulating sand pumping of the oil well. The motor 5 drives the rotating shaft 6 to rotate, so that the connecting rod 1 61 and the connecting rod 2 62 drive the scraper 1 7 and the scraper 2 8 to rotate, and the surface of the filter screen 4 and the inner wall of the filter box 1 are continuously cleaned to avoid the adhesion of oil-containing silt. When the filter box 1 needs to be discharged, the screw rod 12 is driven to rotate by rotating the crank 121, so that the block 11 slides along the limit bin 13 under the action of the thread, and the seal on the lower end of the filter box 1 is released, so that the inside of the filter box 1 is The silt falls into the squeezing tube 10, and the spiral blade 14 is driven to rotate by the motor 2 141 to transport and squeeze the silt. Most of the water in the silt flows out of the squeezing tube 10 from the filter 2 101 after squeezing, and gathers at the lower end of the collecting bin 9. The silt falls into the collecting box 15 from the front end of the squeezing tube 10, and the remaining water also gathers at the bottom of the collecting bin 9 through the filter 3 152. After the sand and gravel are fully drained in the collecting box 15, the collecting box 15 can be taken out through the handle 151, and the sand and gravel can be centrally processed. Subsequently, the water pump 2 91 and the electric valve 93 can be turned on to return the water in the collecting bin 9 through the return pipe 92 to avoid waste of water resources.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oilfield drilling circulating sand pumping device, comprising a filter box (1), characterized in that: A water suction pipe (2) is arranged on the left side of the filter box (1), a water pump (3) is arranged on the rear side of the filter box (1), a filter screen (4) is fixedly installed on the inner side of the filter box (1), a motor (5) is fixedly installed on the upper end of the filter box (1), an output end of the motor (5) extends to the inner side of the filter box (1) and a rotating shaft (6) is arranged, a scraper (7) and a scraper (8) are arranged on the outer side of the rotating shaft (6), and the filter box ( 1) is fixedly mounted with a collecting bin (9), an extrusion tube (10) is arranged inside the collecting bin (9), a blocking block (11) is arranged at the upper end of the extrusion tube (10), a screw rod (12) is threadedly connected to the inner side of the blocking block (11), a limiting bin (13) is arranged outside the front end of the blocking block (11), a spiral blade (14) is arranged inside the extrusion tube (10), and a collecting box (15) is arranged at the front end of the collecting bin (9).

2. The oilfield drilling circulating sand pumping device according to claim 1, characterized in that: The left end of the filter box (1) and the inner side of the water pump (2) are connected to each other via a pipeline, the input end of the water pump (3) and the inner side of the upper end of the filter box (1) are connected to each other via a pipeline, and the output end of the water pump (3) and the inner side of the water pump (2) are connected to each other via a pipeline.

3. The oilfield drilling circulating sand pumping device according to claim 1, characterized in that: The rotating shaft (6) extends to the lower end of the filter screen (4) and is rotatably connected to the filter screen (4) via a bearing; the upper end of the scraper (7) and the lower end of the filter screen (4) are adapted to each other; the lower end of the scraper (7) and the rotating shaft (6) are fixedly connected via a connecting rod (61).

4. The oilfield drilling circulating sand pumping device according to claim 3, characterized in that: The upper end of the scraper blade 2 (8) is fixedly connected to the connecting rod 1 (61), and the lower end of the scraper blade 2 (8) is fixedly connected to the rotating shaft (6) via the connecting rod 2 (62). The scraper blade 2 (8) is arranged in a spiral structure and is mutually adapted to the inner side of the filter box (1).

5. The oilfield drilling circulating sand pumping device according to claim 1, characterized in that: The lower end of the filter box (1) is arranged in a bucket-shaped structure and extends to the inner side of the collection bin (9) and is connected to the upper end of the extrusion tube (10). The rear end of the blocking block (11) extends to the inner side of the filter box (1) and is sealed to the inner side of the lower end of the filter box (1). The rear end of the limiting bin (13) and the inner side of the filter box (1) are connected to each other. The blocking block (11) and the inner side of the limiting bin (13) are slidably connected. The front end of the screw rod (12) is rotatably connected to the inner side of the limiting bin (13) and extends to the outer side of the collection bin (9) and is provided with a crank handle (121).

6. The oilfield drilling circulating sand pumping device according to claim 1, characterized in that: The extrusion tube (10) is arranged in a structure that is narrow at the front and wide at the rear. A second filter screen (101) is fixedly mounted at the lower end of the extrusion tube (10). A second motor (141) is fixedly mounted at the rear end of the extrusion tube (10). The output end of the second motor (141) extends to the inner side of the extrusion tube (10) and is fixedly connected to the rear end of the spiral blade (14). The spiral blade (14) and the inner side of the extrusion tube (10) and the upper end of the second filter screen (101) are mutually adapted.

7. The oilfield drilling circulating sand pumping device according to claim 1, characterized in that: The front end of the collecting box (15) extends to the front side of the collecting bin (9) and is provided with a handle (151). The left and right sides of the collecting box (15) and the inner side of the collecting bin (9) are slidably connected via a slide rail. The upper end of the collecting box (15) and the front end of the extrusion tube (10) are adapted to each other. The lower end of the collecting box (15) is fixedly provided with a filter screen three (152). The right side of the collecting bin (9) is connected to a water pump two (91). The output end of the water pump two (91) and the inner side of the filter box (1) are connected to each other via a return pipe (92). The upper end of the return pipe (92) is provided with an electric valve (93).

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