Rapid desanding device for oil exploitation drilling fluid

Abstract

The utility model discloses a rapid desanding device for oil exploitation drilling fluid, which belongs to the field of drilling fluid desanding and comprises a settling tank, a support column is fixedly connected to the lower bottom end of the settling tank, a desanding component is arranged at the upper top end of the settling tank, and the desanding component comprises a desanding tank fixedly mounted at the upper top end of the settling tank. The inner wall of the sand removing box is fixedly connected with a keeping sliding seat, the inner side wall of the sand removing box is fixedly connected with a supporting sleeve, and the inner wall of the supporting sleeve is fixedly connected with a feeding cylinder. Through cooperative use of all the devices, the sand removing efficiency of slurry can be improved, the influence of large-particle impurities or stones in the sand removing process is reduced, and the situation that sand removing equipment is blocked is avoided; through driving of the stepping motor, the gear drives the gear sleeve to rotate, then the desanding cylinder is driven to rotate, impurities falling into the desanding cylinder are extruded and collided through the steel balls rolling in the gear, the particle size of the impurities is rapidly reduced, the impurities and the drilling fluid are screened and filtered together, and therefore the desanding quality of the drilling fluid is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling fluid sand removal technical field, concretely is a kind of petroleum exploitation drilling fluid quick sand removal device. BACKGROUND

[0002] In petroleum exploitation, drilling fluid sand removal has the following advantages, can protect equipment, sand in drilling fluid can cause serious wear and tear to drilling pump, drill bit, drill pipe and other equipment, by sand removal, can reduce the wear and tear of equipment, prolong the service life of equipment, reduce equipment maintenance and replacement cost, sand in drilling fluid if discharge to environment, can cause pollution to soil, water and the like.

[0003] According to the search, Chinese utility model patent discloses a pile foundation mud high -efficient sand separating device (publication number: CN211863982U), including mud sand separating cylinder, the upper part of mud sand separating cylinder is cylindrical barrel structure, the lower part of mud sand separating cylinder is inverted conical barrel structure;The second rotating rod of the utility model can be scraped off the sand on the inner wall of the bottom of mud sand separating cylinder by scraper after rotating, prevent sand from accumulating more and more in the inner wall of mud sand separating cylinder and affect the cleaning of device later, the second rotating rod can also drive positioning frame and helical blade to rotate, to accelerate the flow between sand at the bottom of mud sand separating cylinder, prevent sand from depositing and accumulating into block to block sand outlet, helical blade can also uniformly discharge sand, as a whole, through scraper, positioning frame and helical blade, sand can be effectively prevented from blocking the bottom of mud sand separating cylinder, improve the applicability of pile foundation mud high -efficient sand separating device.

[0004] Although the above-mentioned patent is provided with helical blade, scraper and other components, the flow of bottom sand in mud sand separating process is accelerated by the mutual cooperation of various components, the phenomenon of sand accumulation and deposition is avoided, and the applicability of sand separating device is improved, but in the process of oil exploitation, the underground environment is relatively complex, and there are certain hard stone particles in the process of drilling, with the circulation of drilling fluid, stone and other large particle impurities will be more likely to block the equipment in the sand removal process, which is very unfavorable for the long-term stable operation of sand removal equipment.

[0005] Therefore, the utility model provides a kind of petroleum exploitation drilling fluid quick sand removal device to solve the above problems. UTILITY MODEL CONTENT

[0006] (I) technical problem solved

[0007] The utility model provides a kind of petroleum exploitation drilling fluid quick sand removal device, aims at solving the problems proposed in the background art.

[0008] (II) technical scheme

[0009] In order to achieve the above object, the utility model provides the following technical scheme:

[0010] A petroleum exploitation drilling fluid rapid sand removal device, including the sediment tank, the lower bottom end of the sediment tank is fixedly connected with the support column, the upper top end of the sediment tank is provided with sand removal subassembly;

[0011] The sand removal subassembly includes the sand removal tank fixedly installed on the upper top end of the sediment tank, the inner wall of the sand removal tank is fixedly connected with the holding sliding seat, the inner side wall of the sand removal tank is fixedly connected with the support sleeve, the inner wall of the support sleeve is fixedly connected with the feeding cylinder, the end of the feeding cylinder is rotatably connected with the sand removal cylinder, the inner wall of the sand removal cylinder is placed with the steel ball, the outer wall of the sand removal cylinder is fixedly sleeved with the gear sleeve, the sidewall of the sand removal tank is installed with the stepping motor, the output of the stepping motor is fixedly sleeved with the gear, the upper top end of the sand removal tank is provided with the premixing assembly.

[0012] As a preferred technical scheme of the application, the premixing assembly includes a premixing tank fixedly connected to the upper top end of the sand removal tank, a rotating roller rotatably connected to the sidewall of the premixing tank, and a grinding tool head fixedly connected to the outer wall of the rotating roller.

[0013] As a preferred technical scheme of the application, the premixing assembly further includes a gear ring fixedly sleeved to the outer wall of the rotating roller, and an end of one of the rotating rollers is fixedly sleeved with a driving motor, the upper top end of the premixing tank is fixedly connected with a liquid inlet pipe, the outer wall of the liquid inlet pipe is fixedly sleeved with a connecting disc, and the sidewall of the sand removal tank is slidably connected with a filter assembly.

[0014] As a preferred technical scheme of the application, the filter assembly includes a clamping plate slidably connected to the sidewall of the sand removal tank, a handle fixedly connected to the outer wall of the clamping plate, and a filter plate clamped to the inner wall of the clamping plate.

[0015] As a preferred technical scheme of the application, the inner bottom end of the sediment tank is fixedly connected with a mud pump, and the output end of the mud pump is fixedly connected with the upper top end of the premixing tank through a circulating pipe.

[0016] As a preferred technical scheme of the application, the inner wall of the sand removal cylinder is fixedly connected with a plurality of protective sleeves, and the end of the sand removal cylinder is rotatably connected with a door.

[0017] As a preferred technical scheme of the application, the sidewall of the sediment tank is fixedly connected with a liquid outlet pipe, and the outer wall of the liquid outlet pipe is fixedly connected with a mounting sleeve.

[0018] (Three) beneficial effects

[0019] Through the setting of the sand removing assembly, the efficiency of mud sand removing can be improved, through the mutual cooperation of each part inside it, the influence of large particle impurities or stones in the sand removing process can be reduced, the situation of blocking the sand removing equipment can be avoided, the stepping motor is driven, the gear drives the gear sleeve to run, and then drives the sand removing cylinder to rotate, the impurities falling into the sand removing cylinder are extruded and collided by the rolling steel balls inside, the particle size is quickly reduced, and the drilling fluid is screened and filtered together, so that the sand removing quality of the drilling fluid is improved.

[0020] Through the setting of the sand removing assembly, the efficiency of mud sand removing can be improved, through the mutual cooperation of each part inside it, the influence of large particle impurities or stones in the sand removing process can be reduced, the situation of blocking the sand removing equipment can be avoided, the stepping motor is driven, the gear drives the gear sleeve to run, and then drives the sand removing cylinder to rotate, the impurities falling into the sand removing cylinder are extruded and collided by the rolling steel balls inside, the particle size is quickly reduced, and the drilling fluid is screened and filtered together, so that the sand removing quality of the drilling fluid is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of a kind of petroleum exploitation drilling fluid fast sand removing device;

[0022] Figure 2 It is a structure schematic view of sand removing cylinder in a kind of petroleum exploitation drilling fluid fast sand removing device;

[0023] Figure 3 It is a structure schematic view of sand removing cylinder in a kind of petroleum exploitation drilling fluid fast sand removing device;

[0024] Figure 4 It is a structure schematic view of sand removing cylinder in a kind of petroleum exploitation drilling fluid fast sand removing device;

[0025] Figure 5 It is a structure schematic view of a kind of petroleum exploitation drilling fluid fast sand removing device in circulation pipe.

[0026] In the drawing:

[0027] 1, sedimentation tank;2, sand removing tank;3, retaining slide;4, support sleeve;5, feeding cylinder;6, sand removing cylinder;7, steel ball;8, gear sleeve;9, stepping motor;10, gear;11, premixing box;12, rotating roller;13, gear ring;14, driving motor;15, liquid inlet pipe;16, clamping plate;17, filter plate;18, mud pump;19, circulation pipe;20, sheath;21, liquid outlet pipe. DETAILED DESCRIPTION

[0028] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides a rapid desanding device for oil drilling fluid, such as... Figures 1-5 As shown, the rapid desanding device for oil drilling fluid includes a sedimentation tank 1, a support column is fixedly connected to the bottom of the sedimentation tank 1, and a desanding component is provided at the top of the sedimentation tank 1.

[0030] The sand removal assembly includes a sand removal box 2 fixedly installed on the top of the sedimentation tank 1. A retaining slide 3 is fixedly connected to the inner wall of the sand removal box 2. A support sleeve 4 is fixedly connected to the inner side wall of the sand removal box 2. A feed cylinder 5 is fixedly connected to the inner wall of the support sleeve 4. A sand removal cylinder 6 is rotatably connected to the end of the feed cylinder 5. A steel ball 7 is placed on the inner wall of the sand removal cylinder 6. A toothed sleeve 8 is fixedly sleeved on the outer wall of the sand removal cylinder 6. A stepper motor 9 is installed on the side wall of the sand removal box 2. A gear 10 is fixedly sleeved on the output end of the stepper motor 9. A premixing component is provided at the top of the sand removal box 2.

[0031] The premixing assembly includes a premixing box 11 fixedly connected to the top of the desanding box 2, a rotating roller 12 rotatably connected to the side wall of the premixing box 11, and a grinding head fixedly connected to the outer wall of the rotating roller 12.

[0032] The premixing assembly also includes a toothed ring 13 fixedly sleeved on the outer wall of the rotating roller 12, a drive motor 14 fixedly sleeved at the end of one of the rotating rollers 12, an inlet pipe 15 fixedly connected to the top of the premixing box 11, a connecting plate fixedly sleeved on the outer wall of the inlet pipe 15, and a filter assembly slidably connected to the side wall of the sand removal box 2.

[0033] The inner wall of the sand removal cylinder 6 is fixedly connected with a protective sleeve 20, and there are several protective sleeves 20. The end of the sand removal cylinder 6 is rotatably connected with an opening and closing door.

[0034] Specifically, the support column can provide sufficient support for the sediment tank 1 to ensure its safety and stability during operation, avoid instability of the device during mud desanding, and improve the desanding quality of the desanding device through the cooperation of the internal components, avoid the blockage of the desanding device by stones or large particles, and drive the meshing tooth sleeve 8 to rotate through the gear 10 connected to the output end of the stepping motor 9, thereby driving the desanding cylinder 6 to rotate. Since the desanding cylinder 6 is rotationally limited to the inner wall of the desanding tank 2 by the feed cylinder 5, it will be in a stable state during rotation. When the mud enters the desanding cylinder 6, the rotating desanding cylinder 6 will continuously roll the steel balls 7 placed on its inner wall, and the steel balls 7 will fall due to gravity after rotation. Through the mutual collision of multiple steel balls 7, the stones and particles in the desanding cylinder 6 can be crushed. The use of the sheath 20 can reduce the damage to the inner wall of the desanding cylinder 6 caused by the falling and collision of the steel balls 7, and improve its service life. This component has a simple structure and strong practicality, and can improve the desanding efficiency of the drilling fluid. The use of the premixing tank 11 can facilitate the transportation of a large amount of drilling fluid, and the rotating roller 12 can drive the grinding tool bit to pre-mix the drilling fluid, improve its mixing uniformity, and avoid the phenomenon of large particle impurities settling due to weight. The mutual grinding of the two grinding tool bits can pre-grind the impurities to avoid the blockage of the premixing tank 11. The tooth ring 13 on the outer wall of the roller 12 can drive the two rollers 12 to rotate synchronously when the roller 12 rotates, thereby improving the grinding efficiency. The use of the driving motor 14 can provide power source for the roller 12, and strong power will be conducive to the operation of the grinding tool bit. The use of this component can avoid the blockage of the desanding device by particles through pre-treatment, and improve the desanding efficiency of the device.

[0035] The filter assembly includes a clamping plate 16 slidably connected to the side wall of the desanding tank 2. The outer wall of the clamping plate 16 is fixedly connected with a handle, and the inner wall of the clamping plate 16 is clamped with a filter plate 17.

[0036] The inner bottom end of the sediment tank 1 is fixedly connected with a mud pump 18, and the output end of the mud pump 18 is fixedly connected with the upper top end of the premixing tank 11 through a circulating pipe 19.

[0037] The side wall of the sediment tank 1 is fixedly connected with a liquid outlet pipe 21, and the outer wall of the liquid outlet pipe 21 is fixedly connected with a mounting sleeve.

[0038] Specific, with the setting of the filter assembly, the drilling fluid treated by the sand removal cylinder 6 can be further filtered, the crushed particle impurities are intercepted by the multi-layer filter plate 17, avoiding being extracted with the drilling fluid for circulation, the filter plate 17 has good filtering performance, the quality of sand removal is improved, the clamping plate 16 can be pulled out by pulling the handle, then the filter plate 17 can be replaced or cleaned by the operator, the cleaning degree of the filter plate 17 is improved, the filter plate 17 can be quickly clamped by the operator through the clamping of the clamping plate 16, the stability in the filtering process can be ensured, and the disassembly efficiency of the operator is improved, when the drilling fluid filtered is flowed into the sedimentation tank 1, the drilling fluid can be transported into the premixing tank 11 through the circulation pipe 19 through extraction by the work of the mud pump 18, the sand removal and filtering effect of the drilling fluid is improved through circulation, the influence of the sand and particles in the drilling fluid on oil drilling is reduced, and the stable conveying of the drilling fluid can be ensured by the setting of the liquid outlet pipe 21.

[0039] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for rapid sand removal from oil production drilling fluids, comprising a sedimentation tank (1), characterized in that: The lower bottom end of the sedimentation tank (1) is fixedly connected with a support column, and the upper top end of the sedimentation tank (1) is provided with a sand removal assembly. The sand removal assembly comprises a sand removal tank (2) fixedly installed on the upper top end of the sedimentation tank (1), the inner wall of the sand removal tank (2) is fixedly connected with a retaining sliding seat (3), the inner side wall of the sand removal tank (2) is fixedly connected with a support sleeve (4), the inner wall of the support sleeve (4) is fixedly connected with a feeding cylinder (5), the end of the feeding cylinder (5) is rotatably connected with a sand removal cylinder (6), the inner wall of the sand removal cylinder (6) is placed with a steel ball (7), the outer wall of the sand removal cylinder (6) is fixedly sleeved with a gear sleeve (8), the sidewall of the sand removal tank (2) is provided with a stepping motor (9), the output end of the stepping motor (9) is fixedly sleeved with a gear (10), and the upper top end of the sand removal tank (2) is provided with a premixing assembly.

2. The device for removing sand from drilling fluid for oil production according to claim 1, characterized in that: The premixing assembly comprises a premixing tank (11) fixedly connected to the upper top end of the sand removal tank (2), a rotating roller (12) rotatably connected to the sidewall of the premixing tank (11), and a grinding tool bit fixedly connected to the outer wall of the rotating roller (12).

3. The device for removing sand from drilling fluid for oil production according to claim 2, characterized in that: The premixing assembly further comprises a gear ring (13) fixedly sleeved on the outer wall of the rotating roller (12), the end of one of the rotating rollers (12) is fixedly sleeved with a driving motor (14), the upper top end of the premixing tank (11) is fixedly connected with a liquid inlet pipe (15), the outer wall of the liquid inlet pipe (15) is fixedly sleeved with a connecting disc, and the sidewall of the sand removal tank (2) is slidably connected with a filter assembly.

4. The oil drilling fluid rapid desanding device according to claim 3, characterized in that: The filter assembly comprises a clamping plate (16) slidably connected to the sidewall of the sand removal tank (2), a handle fixedly connected to the outer wall of the clamping plate (16), and a filter plate (17) clamped to the inner wall of the clamping plate (16).

5. The oil drilling fluid rapid desanding device of claim 2, wherein: The inner bottom end of the sedimentation tank (1) is fixedly connected with a mud pump (18), and the output end of the mud pump (18) is fixedly connected with the upper top end of the premixing tank (11) through a circulating pipe (19).

6. The device for removing sand from drilling fluid for oil production according to claim 1, characterized in that: The inner wall of the sand removal cylinder (6) is fixedly connected with a sheath (20), and the number of the sheaths (20) is several, and the end of the sand removal cylinder (6) is rotatably connected with an opening and closing door.

7. The oil drilling fluid rapid desanding device of claim 5, wherein: The sidewall of the sedimentation tank (1) is fixedly connected with a liquid outlet pipe (21), and the outer wall of the liquid outlet pipe (21) is fixedly connected with a mounting sleeve.

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