Multifunctional water pre-separation treatment equipment for oil field
By installing components such as liquid-sand separation mechanisms and gas-liquid baffles in the pre-water treatment equipment in the oilfield, the problems of mud and sand deposition and foam generation have been solved, and the equipment has been protected against damage and efficiently separated.
Patent Information
- Application Number
- CN202520149646.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-22
AI Technical Summary
During oilfield extraction, mud and sand deposits in pipelines and ground equipment are difficult to clean, leading to equipment damage and reduced processing capacity. At the same time, crude oil produces a large amount of foam, affecting the water separation effect.
Design a multi-functional pre-separation water treatment device for oil fields, including a first tank and a second tank. The first tank is equipped with a liquid-sand separation mechanism to separate mud and sand using a hydrocyclone. The second tank is equipped with components such as a gas-liquid baffle and a defoaming net to reduce the impact of crude oil and the generation of foam.
It effectively separates mud and sand, prevents equipment damage, reduces foam generation, and improves water separation quality and efficiency.
Smart Images
Figure CN223737997U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oilfield prewater separation treatment technical field especially relates to a kind of oilfield multifunctional prewater separation treatment equipment. BACKGROUND
[0002] Prewater separation refers to the well group, measurement station, transfer station etc. in advance part of sewage is separated, and is handled locally and is injected back after reaching standard, and the remaining low water cut produced liquid is sent to joint station centralized treatment, and in the process of oilfield exploitation, part of mud sand is brought into ground gathering system with well flow, when prewater separation treatment of crude oil, these mud sand can be deposited in pipeline and ground equipment, leading to equipment damage, reduce the processing capacity of equipment, affect water separation effect, while mud sand is not easy to clean up for long time deposition.
[0003] Crude oil enters the process in prewater separation treatment tank, inevitably collides with the inner wall of treatment tank, and a large amount of foam is generated, which can affect the quality of water separation, so a kind of oilfield multifunctional prewater separation treatment equipment is needed to solve the problem of mud sand deposition difficult to clean up and a large amount of foam generated by crude oil. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of oilfield multifunctional prewater separation treatment equipment, solves.
[0005] To achieve the above object, the utility model provides a kind of oilfield multifunctional prewater separation treatment equipment, including first tank body and second tank body, the first tank body and the second tank body are respectively fixed on first support column and second support column, the first tank body with the second tank body are connected by pumping pipe, the inside of the first tank body is provided with liquid sand separation mechanism and support plate, mud sand conveying mechanism, which is arranged below the first tank body, is connected with the liquid sand separation mechanism, the right lower end of the first tank body is provided with liquid outlet;
[0006] The inside of the second tank body is sequentially provided with gas-liquid folding plate, defoaming net, U-shaped plate, mist eliminator and baffle, the left upper end of the second tank body is provided with liquid inlet, the lower end of the liquid inlet is connected with flow guide plate, the port section of the flow guide plate is arc-shaped, the top of the second tank body is provided with safety valve and exhaust port, the mist eliminator is connected with the exhaust port, the bottom of the second tank body is provided with blowdown, oil outlet and water outlet.
[0007] Preferably, the gas-liquid folding plate and the mist eliminator are both arranged at the inside top end of the second tank body, and the defoaming net, the U-shaped plate and the baffle are all arranged at the inside bottom end of the second tank body.
[0008] Preferably, the support plate, the first tank body and the mud sand separation mechanism form a liquid collecting cavity, and the liquid collecting cavity is used for collecting oil-water mixture separated by the mud sand separation mechanism.
[0009] The liquid sand separation mechanism is a cyclone, which comprises a feed pipe, a flow guide sleeve and an overflow port, the feed pipe is connected with an external crude oil raw material pipe, the bottom end of the flow guide sleeve is provided with a sand outlet, and the sand outlet is connected with the mud sand conveying mechanism.
[0010] Preferably, one end of the liquid pumping pipe is connected with the liquid outlet, and the other end is connected with the liquid inlet, and a water pump is arranged on the liquid pumping pipe.
[0011] Preferably, the oil outlet and the water outlet are both provided with a vortex elimination plate.
[0012] Preferably, the baffle and the side wall of the first tank body form a water collecting cavity, the inside of the U-shaped plate is provided with a first liquid level control sensor, the inside of the water collecting cavity is provided with a second liquid level control sensor, and the exhaust port is provided with a pressure control sensor.
[0013] Preferably, the top end of the overflow port is provided in a sawtooth shape.
[0014] Preferably, the mud sand conveying mechanism comprises a screw conveyor and a mud sand collecting tank, the sand outlet corresponds to the feed hopper of the screw conveyor, and the discharge port of the screw conveyor corresponds to the mud sand collecting tank.
[0015] Preferably, a manhole is arranged at the right middle part of the second tank body.
[0016] Preferably, the support plate is arranged in a slope manner in the inside of the first tank body.
[0017] Therefore, the oil field multifunctional pre-water separation treatment equipment has the following beneficial effects: the first tank body is arranged, the liquid sand separation mechanism is arranged in the inside of the first tank body, the liquid sand separation mechanism adopts a cyclone, the sand outlet is arranged at the bottom of the cyclone, the separation of mud sand is completed through the cyclone, the separated mud sand is discharged through the sand outlet, and then is conveyed to the mud sand collecting tank through the screw conveyor, and the mud sand treatment of the crude oil is completed.
[0018] The second tank body is arranged, the separation of gas, oil and water of the crude oil is completed in the second tank body, the flow guide plate is arranged at the lower end of the liquid inlet, the flow guide plate can guide the crude oil when the crude oil enters the second tank body through the liquid inlet, the impact force of the crude oil on the inner wall of the second tank body is reduced, the generation of foam is greatly reduced, the defoaming net is arranged in the inside of the second tank body, a small amount of generated foam can be eliminated, and the water separation quality is improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 It is a structural schematic view of the oil field multifunctional pre-water separation treatment equipment in the embodiment of the utility model;
[0020] Fig. 2 Figure 1 is a schematic view of a guide plate according to an embodiment of the present application;
[0021] Reference signs
[0022] 1, first tank body; 2, second tank body; 3, first support column; 4, second support column; 5, liquid pumping pipe; 6, liquid-sand separation mechanism; 7, support plate; 8, mud-sand conveying mechanism; 9, liquid outlet; 10, liquid inlet; 11, water pump; 12, gas-liquid folding plate; 13, defoaming net; 14, U-shaped plate; 15, mist catcher; 16, baffle; 17, guide plate; 18, safety valve; 19, exhaust port; 20, blowdown port; 21, oil outlet; 22, water outlet; 23, vortex elimination plate; 24, liquid collection cavity; 25, feed guide pipe; 26, guide sleeve; 27, overflow port; 28, sand outlet; 29, water collection cavity; 30, first liquid level control sensor; 31, second liquid level control sensor; 32, screw conveyor; 33, mud-sand collection tank; 34, manhole. DETAILED DESCRIPTION
[0023] The technical scheme of the present application is further described below with reference to the drawings and embodiments.
[0024] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the common meaning understood by one of ordinary skill in the art to which the present application belongs. The terms "first", "second", and similar terms used in the present application do not indicate any order, number, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are only used to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.
[0025] EMBODIMENT
[0026] As Figs. 1-2As shown, the utility model discloses a kind of oilfield multifunctional pre-water separation treatment equipment, including first tank body 1 and second tank body 2, first tank body 1 and second tank body 2 are respectively fixed on first support column 3 and second support column 4, first tank body 1 is connected with second tank body 2 by pumping tube 5, the inside of first tank body 1 is provided with liquid sand separation mechanism 6 and support plate 7, support plate 7 is obliquely arranged in the inside of first tank body 1, mud sand conveying mechanism 8 is connected with liquid sand separation mechanism 6, being arranged in the below of first tank body 1, the right side lower end of first tank body 1 is provided with liquid outlet 9, the left side upper end of second tank body 2 is provided with liquid inlet 10, one end of pumping tube 5 is connected with liquid outlet 9, the other end is connected with liquid inlet 10, water pump 11 is provided on pumping tube 5.
[0027] The inside of second tank body 2 is sequentially provided with gas-liquid baffle 12, defoaming net 13, U-shaped plate 14, mist catcher 15 and baffle 16, gas-liquid baffle 12 and mist catcher 15 are all arranged at the inside top end of second tank body 2, defoaming net 13, U-shaped plate 14 and baffle 16 are all arranged at the inside bottom end of second tank body 2.
[0028] Gas-liquid baffle 12 separates oil-water fluid, when liquid and gas mix together and flow, if meet obstruction, gas will turn and go, and oil-water fluid continues to have a forward speed due to inertia, and the oil-water fluid that is forward adheres on the surface of obstruction filler and gathers together due to the action of gravity, and flows back to second tank body 2.
[0029] The lower end of liquid inlet 10 is connected with guide plate 17, the port section of guide plate 17 is arc-shaped, guides the crude oil flowing into second tank body 2, reduces the impact force of crude oil to second tank body 2, reduces the generation of foam, improves water separation quality, the top of second tank body 2 is provided with safety valve 18 and exhaust port 19, mist catcher 15 is connected with exhaust port 19, the bottom of second tank body 2 is provided with blowdown 20, oil outlet 21 and water outlet 22, oil outlet 21 and water outlet 22 are all provided with vortex elimination plate 23, to prevent vortex.
[0030] Support plate 7, first tank body 1 and mud sand separation mechanism form liquid collection cavity 24, liquid collection cavity 24 is used for collecting oil-water mixed liquid separated by mud sand separation mechanism, liquid sand separation mechanism 6 is arranged as cyclone, cyclone includes feed guide pipe 25, flow guide sleeve 26 and overflow port 27, feed guide pipe 25 is connected with external crude oil raw material pipe, the bottom end of flow guide sleeve 26 is provided with sand outlet 28, sand outlet 28 is connected with mud sand conveying mechanism 8.
[0031] Baffle 16 and the side wall of first tank body 1 form water collection cavity 29, the inside of U-shaped plate 14 is provided with first liquid level control sensor 30, the inside of water collection cavity 29 is provided with second liquid level control sensor 31, pressure control sensor is arranged at exhaust port 19.
[0032] The top end of the overflow port 27 is sawtooth-shaped, which can ensure that the overflowed oil-water mixture flows out of the flow sleeve smoothly.
[0033] The mud sand conveying mechanism 8 comprises a screw conveyor 32 and a mud sand collecting tank 33, the sand outlet 28 corresponds to a feeding hopper of the screw conveyor 32, and a discharging port of the screw conveyor 32 corresponds to the mud sand collecting tank 33.
[0034] A manhole 34 is arranged at the right middle part of the second tank body 2, so that the inside of the second tank body 2 can be accessed for cleaning and maintenance.
[0035] The working principle of the oilfield multifunctional pre-water separation treatment equipment with the above structure is as follows: liquid sand separation: the feeding pipe 25 is connected with an external crude oil raw material pipe, crude oil enters the inside of the cyclone, mud sand is deposited at the bottom end of the cyclone through centrifugal force difference, and the oil-water mixture flows out at the overflow port 27 and enters the liquid collecting cavity 24.
[0036] Oil-gas-water separation: the water pump 11 is started, the oil-water mixture in the liquid collecting cavity 24 is extracted and enters the second tank body 2 through the liquid extraction pipe 5, and then is guided to the bottom of the second tank body 2 through the flow guide plate 17; the gas-liquid mixture flows through the gas-liquid folding plate 12, so that the liquid and the gas are separated, the liquid flows back to the second tank body 2, the defoaming net 13 can eliminate the foam generated by the collision of the crude oil, with the continuous increase of the oil-water mixture, the oil and water are gradually layered, when the height of the oil rises to the left side height of the U-shaped plate 14, the oil overflows into the U-shaped plate 14, when the oil level reaches the first liquid level control sensor 30, the oil outlet 21 is opened, and the separation of the oil is completed; with the continuous entry of the crude oil, the water level gradually rises, when the water level rises to the height of the baffle 16, the water overflows into the water collecting cavity 29, when the water level reaches the second liquid level control sensor 31, the water outlet 22 is opened, and the preliminary separation of the water is completed; the gas in the second tank body 2 is discharged through the exhaust port 19 after passing through the mist catcher 15, and the separation of the natural gas is completed.
[0037] Therefore, the oilfield multifunctional pre-water separation treatment equipment with the above structure is adopted: the liquid sand separation mechanism is arranged in the first tank body, so that the mud sand mixed in the crude oil can be separated in advance, the mud sand is prevented from entering the second tank body, the equipment is prevented from being damaged due to the deposition of the mud sand, the flow guide plate is arranged below the liquid inlet of the second tank body, the impact force of the crude oil on the second tank body is reduced, the generation of foam is reduced, the defoaming net is arranged, a small amount of generated foam is eliminated, the water separation effect is prevented from being affected, and the water separation quality and efficiency are improved.
[0038] It should be pointed out finally that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been explained in detail with reference to the preferred embodiments, ordinary skilled in the art should understand that: its still can modify or equivalent replace the technical solutions of the utility model, and these modifications or equivalent replacements also can not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.
Claims
1. An oilfield multifunctional predewatering treatment apparatus, characterized by: The application relates to a liquid-sand separation device, which comprises a first tank body and a second tank body, the first tank body and the second tank body are fixed on a first supporting column and a second supporting column respectively, the first tank body is connected with the second tank body through a liquid pumping pipe, the inside of the first tank body is provided with a liquid-sand separation mechanism and a supporting plate, a mud-sand conveying mechanism arranged below the first tank body is connected with the liquid-sand separation mechanism, and a liquid outlet is arranged at the right lower end of the first tank body. The inside of the second tank body is sequentially provided with a gas-liquid folding plate, a defoaming net, a U-shaped plate, a mist catcher and a baffle, a liquid inlet is arranged at the left upper end of the second tank body, a guide plate is connected with the lower end of the liquid inlet, the port section of the guide plate is arc-shaped, a safety valve and an exhaust port are arranged at the top of the second tank body, the mist catcher is connected with the exhaust port, and a blowdown port, an oil outlet and a water outlet are arranged at the bottom of the second tank body.
2. The multifunctional pre-separation treatment apparatus for oilfield according to claim 1, characterized in that: The gas-liquid folding plate and the mist catcher are arranged at the inside top end of the second tank body, and the defoaming net, the U-shaped plate and the baffle are arranged at the inside bottom end of the second tank body.
3. The multifunctional water separation treatment device for oil field of claim 1, wherein: The supporting plate, the first tank body and the mud-sand separation mechanism form a liquid collecting cavity, and the liquid collecting cavity is used for collecting oil-water mixed liquid separated through the mud-sand separation mechanism. The liquid-sand separation mechanism is a cyclone, the cyclone comprises a feeding guide pipe, a flow guide sleeve and an overflow port, the feeding guide pipe is connected with an external crude oil raw material pipe, the bottom end of the flow guide sleeve is provided with a sand outlet, and the sand outlet is connected with the mud-sand conveying mechanism.
4. The oilfield multifunctional predewatering treatment apparatus according to claim 1, characterized in that: One end of the liquid pumping pipe is connected with the liquid outlet, and the other end is connected with the liquid inlet, and a water pump is arranged on the liquid pumping pipe.
5. The oilfield multifunctional predewatering treatment apparatus according to claim 1, characterized in that: The oil outlet and the water outlet are both provided with vortex elimination plates.
6. The oilfield multifunctional predewatering treatment apparatus according to claim 2, characterized in that: The baffle and the side wall of the first tank body form a water collecting cavity, a first liquid level control sensor is arranged in the U-shaped plate, a second liquid level control sensor is arranged in the water collecting cavity, and a pressure control sensor is arranged at the exhaust port.
7. The oilfield multifunctional predewatering treatment apparatus according to claim 3, characterized in that: The top end of the overflow port is sawtooth-shaped.
8. The oilfield multifunctional predewatering treatment apparatus according to claim 7, characterized in that: The mud-sand conveying mechanism comprises a screw conveyor and a mud-sand collecting tank, the sand outlet corresponds to a feeding hopper of the screw conveyor, and a discharging port of the screw conveyor corresponds to the mud-sand collecting tank.
9. The oilfield multifunctional predewatering treatment apparatus according to claim 2, characterized in that: A manhole is arranged at the right middle part of the second tank body.
10. The oilfield multifunctional predewatering treatment apparatus of claim 1, wherein: The supporting plate is arranged in the first tank body in an inclined mode.