CN214167842U - Oil, gas, water and sand four-phase separation integrated device - Google Patents

Abstract

The utility model discloses an oil, gas, water, sand four-phase separation integrated device, include: the device comprises a prying seat, a crude oil liquid inlet pipe, a first sand removal filter, a liquid inlet pump, a sand removal cyclone, a sand washing assembly, a sand discharging box, a three-phase separator and a discharging pipe assembly; the crude oil inlet pipe is fixedly arranged on the prying seat and is connected with one end of the first sand removal filter; the first sand removing filter is fixedly arranged on the prying seat, and the other end of the first sand removing filter is connected with a liquid inlet of the liquid inlet pump; the liquid inlet pump is fixedly arranged on the prying seat, and the liquid outlet is connected with the desanding cyclone; the desanding cyclone is fixedly arranged on the prying seat and is connected with a liquid inlet at the top of the tank body of the three-phase separator; the sand washing component is connected with the tank body; the sand discharge box is fixedly arranged on the prying seat; the tank body is fixedly arranged on the prying seat and is connected with the discharge pipe assembly; and the discharge pipe assembly is fixedly arranged on the prying seat and is positioned outside the tank body. The utility model discloses all set up three-phase separator and three-phase separator complex equipment on the sled seat, compact structure, it is little to take up an area of, has practiced thrift the space greatly.

Description

Oil, gas, water and sand four-phase separation integrated device

Technical Field

The utility model belongs to the technical field of oil field crude oil separation equipment, concretely relates to oil, gas, water, sand four-phase separation integrated device.

Background

At present, in the field of oil and gas gathering and transportation, a three-phase separator is taken as one of the most important core devices in the ground engineering construction of oil and gas fields, replaces the original complex and low-energy process technology of gas-liquid separation and large-tank sedimentation in the oil field with the characteristics of energy conservation and high efficiency, shortens the process chain of production equipment, simplifies the process flow, reduces the management and investment cost, and is widely applied to the production construction of the oil field. However, in the use process of recent years, some problems are exposed, such as long installation and debugging period, large occupied area, inconvenience in migration, sand accumulation and serious corrosion of equipment, influence on equipment separation effect and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems existing in the prior art, the utility model provides an oil, gas, water, sand four-phase separation integrated device. The to-be-solved technical problem of the utility model is realized through following technical scheme:

an oil, gas, water, sand four-phase separation integrated device, includes: the device comprises a prying seat, a crude oil liquid inlet pipe, a first sand removal filter, a liquid inlet pump, a sand removal cyclone, a sand washing assembly, a sand discharging box, a three-phase separator and a discharging pipe assembly;

the crude oil inlet pipe is fixedly arranged on the prying seat and is connected with one end of the first sand removal filter;

the first sand removing filter is fixedly arranged on the prying seat, and the other end of the first sand removing filter is connected with a liquid inlet of the liquid inlet pump;

the liquid inlet pump is fixedly arranged on the prying seat, and the liquid outlet is connected with the desanding cyclone;

the sand removal cyclone is fixedly arranged on the prying seat and is connected with a liquid inlet at the top of the tank body of the three-phase separator;

the sand washing assembly is connected with the tank body;

the sand discharging box is fixedly arranged on the prying seat, is positioned outside the tank body and below the sand washing assembly, is connected with the bottom of the tank body and is communicated with the inside of the tank body;

the tank body is fixedly arranged on the prying seat and is connected with the discharge pipe assembly;

and the discharge pipe assembly is fixedly arranged on the prying seat and is positioned outside the tank body.

In an embodiment of the present invention, the present invention further includes: a second sand removal filter;

the second sand removing filter is fixedly arranged on the prying seat, one end of the second sand removing filter is connected with the crude oil liquid inlet pipe, and the other end of the second sand removing filter is connected with the liquid inlet of the liquid inlet pump.

In an embodiment of the present invention, the valve further comprises a first valve, a second valve, a third valve, a fourth valve, a first three-way joint and a second three-way joint;

a first interface of the first three-way joint is communicated with the crude oil inlet pipe, a second interface of the first three-way joint is connected with one end of the first sand removing filter through a first liquid sending pipe, and a third interface of the first three-way joint is connected with one end of the second sand removing filter through a second liquid sending pipe;

a first port of the second tee joint is connected with the liquid inlet pump, the second tee joint is connected with the other end of the first sand removing filter through a third liquid sending pipe, and the second tee joint is connected with the other end of the second sand removing filter through a fourth liquid sending pipe;

the first valve is arranged on the first liquid sending pipe;

the second valve is arranged on the second liquid sending pipe;

the third valve is arranged on the third liquid sending pipe;

and the fourth valve is arranged on the fourth liquid sending pipe.

In an embodiment of the present invention, the discharge pipe assembly includes: the water outlet pipe, the electromagnetic flowmeter, the fifth valve, the oil outlet pipe, the rotor flowmeter, the sixth valve, the air outlet pipe, the precession vortex flowmeter, the seventh valve, the eighth valve and the sewage discharge pipe;

the water outlet pipe is connected with the water outlet of the tank body;

the electromagnetic flowmeter and the fifth valve are both arranged on the water outlet pipe;

the oil outlet pipe is connected with an oil outlet of the tank body;

the rotor flowmeter and the sixth valve are both arranged on the oil outlet pipe;

the air outlet pipe is connected with the tank body;

the precession vortex flowmeter and the seventh valve are both arranged on the air outlet pipe;

the sewage discharge pipe is connected with a sewage discharge port of the tank body;

and the eighth valve is arranged on the sewage discharge pipe.

In an embodiment of the present invention, the device further comprises a PLC controller;

the PLC is electrically connected with the first desanding filter, the liquid inlet pump, the desanding cyclone, the sand discharging box, the three-phase separator, the second desanding filter, the first valve, the second valve, the third valve, the fourth valve, the electromagnetic flow meter, the fifth valve, the rotor flow meter, the sixth valve, the precession vortex flow meter, the seventh valve and the eighth valve.

In an embodiment of the present invention, the present invention further includes: a sand-limiting plate;

the sand limiting plate is fixedly arranged at the tail end of the pre-separation section in the tank body of the three-phase separator, two ends and the bottom end of the sand limiting plate are respectively and fixedly connected with the inner wall and the bottom of the tank body, and a spacing distance is reserved between the top end of the sand limiting plate and the top of the tank body;

the sand washing component penetrates into the tank body, and the part in the tank body is positioned in the pre-separation section and used for introducing liquid outside the tank body into the pre-separation section in the tank body;

the sand discharging box is positioned outside the tank body, is positioned below the sand washing assembly, is connected with the bottom of the tank body, and is communicated with the inside of the tank body.

In an embodiment of the present invention, the sand washing assembly includes: a water conduit, a distribution pipe and a plurality of nozzles;

one end of the water conduit is positioned outside the tank body, and the other end of the water conduit penetrates through the tank body and is communicated with one end of the distribution pipe;

the distribution pipe is positioned in the tank body, and the other end of the distribution pipe is closed;

one end of the nozzle is communicated with the distribution pipe, and the other end of the nozzle is communicated with the inside of the tank body; the plurality of nozzles are arranged at intervals.

In an embodiment of the present invention, the distribution pipe includes: two distribution sub-pipes;

the distribution sub-pipe is of an arc bent pipe structure and protrudes towards the side wall of the tank body.

In an embodiment of the present invention, the sand discharging box includes: a box body and an electric valve;

the box body is positioned outside the tank body, is positioned below the sand washing assembly, is connected with the bottom of the tank body and is communicated with the inside of the tank body;

and the electric valve is arranged at the bottom of the box body.

In one embodiment of the utility model, the utility model also comprises a circulating water pump;

and the water outlet end of the circulating water pump is connected with one end of the water conduit.

The utility model has the advantages that:

1. the utility model discloses all set up the three-phase separator, with each way pipeline of three-phase separator complex and with three-phase separator complex filter and pump on the sled seat, can move the sled seat to can move equipment on the sled seat thereupon, so that equipment is recycled and the transformation of moving of mill, improve equipment reuse rate, improve the equipment of mill simultaneously and moved, the work efficiency of transformation.

2. The utility model discloses all set up three-phase separator, with each way pipeline of three-phase separator complex and with three-phase separator complex filter and pump on the sled seat, compact structure, occupation of land is little, has practiced thrift the space greatly.

3. When the initial assembly is carried out on the separation equipment, only the pipeline and the electric outside communication are needed to be completed, the field workload is reduced, the working efficiency is improved, and meanwhile, the convenience is provided for the use of a user.

4. The utility model discloses a first sand removal filter carries out outside degritting with the desanding swirler, removes most gravel before crude oil gets into the three-phase separator, and the three-phase separation effect that goes on in can making the three-phase separator is better. The external sand removing device is integrated on the prying seat. Inside the sand washing subassembly embedding equipment, further clear away the grit, for subsequent oil, the separation of water provide good separation environment, further improved the effect of three-phase separation. The sand is removed at the inner and outer stages, so that four-phase separation of oil, gas, water and sand is realized.

5. The utility model discloses a sand limiting plate is the grit interception at the preseparation section also be the anterior segment of the jar body, erode the grit of preseparation section through the sand washing subassembly, then through the external portion of the sand discharging box jar, owing to clear sand, arrange the sand processing at the preseparation section, the sedimentary separation section and the long-pending sand volume of stable section (middle and back section) of three-phase separator are very little, avoid disturbing the internal stable flow field that has tended to of jar originally, consequently, can not influence ultimate water oil separating effect. Meanwhile, the three-phase separator does not need to be shut down specially for sand cleaning and sand discharging, and only needs to be cleaned by the way during overhauling and maintenance.

6. The utility model discloses further reduce because the corruption that the long-pending sand in jar body bottom arouses, prolonged the life of equipment.

7. The utility model discloses a PLC controller control motorised valve and circulating water pump need not manual operation, have simplified the operation, and degree of automation is higher.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of an oil, gas, water and sand four-phase separation integrated device provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an oil, gas, water and sand four-phase separation integrated device provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a three-phase separator provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a sand washing assembly and a sand discharging box provided by the embodiment of the present invention;

FIG. 5 is a view from the A-A direction of FIG. 4;

fig. 6 is a block diagram of an oil, gas, water and sand four-phase separation integrated device provided by an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of an oil, gas, water, and sand four-phase separation integrated device provided by an embodiment of the present invention.

Description of reference numerals:

10-sand limiting plate; 20-a sand washing assembly; 21-a water conduit; 22-a distribution pipe; 23-a nozzle; 24-a distributor sub-tube; 30-sand discharging box; 31-a box body; 32-electric valve; 40-a three-phase separator; 41-tank body; 42-a liquid inlet pipe; 50-a circulating water pump; 60-a PLC controller; 70-prying seat; 80-crude oil inlet pipe; 90-a first sand removal filter; 100-liquid inlet pump; 110-desanding cyclone; 120-a drain tube assembly; 130-a second sand removal filter; 131-a first valve; 132-a second valve; 133-a third valve; 134-a fourth valve; 135-a first three-way joint; 136-a second three-way joint; 137-a first liquid sending pipe; 138-a second liquid delivery tube; 139-a third liquid delivery tube; 140-a fourth liquid delivery tube; 141-a water outlet pipe; 142-an electromagnetic flow meter; 143-a fifth valve; 144-an oil outlet pipe; 145-a rotameter; 146-a sixth valve; 147-an outlet duct; 148-vortex precession flow meter; 149-a seventh valve; 150-an eighth valve; 151-sewage draining pipe.

Detailed Description

The present invention will be described in further detail with reference to specific examples, but the present invention is not limited thereto.

Example one

Referring to fig. 1, an oil, gas, water and sand four-phase separation integrated device comprises: pry seat 70, crude oil inlet pipe 80, first sand removal filter 90, inlet pump 100, sand removal cyclone 110, sand washing assembly 20, sand discharge tank 30, three-phase separator 40 and discharge pipe assembly 120. The crude oil inlet pipe 80 is fixedly arranged on the pry seat 70, and the crude oil inlet pipe 80 is connected with one end of the first sand removing filter 90. The first sand removing filter 90 is fixedly arranged on the pry seat 70, and the other end of the first sand removing filter 90 is connected with the liquid inlet of the liquid inlet pump 100. The liquid inlet pump 100 is fixed on the pry seat 70, and a liquid outlet of the liquid inlet pump 100 is connected with the desanding cyclone 110. The desanding cyclone 110 is fixedly arranged on the prying seat 70, and the desanding cyclone 110 is connected with a liquid inlet at the top of the tank 41 of the three-phase separator 40. In this embodiment, the crude oil enters the first sand removing filter 90 from the crude oil inlet pipe 80 for sand removing filtration, so as to remove grit of 300 μm or more from the crude oil, and then the crude oil filtered by the first sand removing filter 90 is sent to the sand removing cyclone 110 by the inlet pump 100, and the sand removing cyclone 110 is able to remove grit of 40 μm or more by filtration, and then enters the tank 41 of the three-phase separator 40 for three-phase separation treatment. This embodiment carries out the filtration sand removal processing of crude oil outside three phase separator 40, can filter most grit, reduces the grit that gets into in three phase separator 40, can make the three phase separation effect of going on in three phase separator 40 better.

In this embodiment, the sand wash assembly 20 is connected to the tank 41. The sand wash assembly 20 is used to sand the interior of the tank 41. The sand wash assembly 20 is partially located inside the tank 41 and partially located outside the tank 41 to be connected to a water source. When the sand washing assembly 20 works, water outside the tank body 41 is introduced into the tank body 41 to wash away the gravel inside the tank body 41, and the washed gravel is accumulated in the sand discharge tank 30 and then discharged to a sewage pool. The sand discharge box 30 is fixedly arranged on the pry seat 70, the sand discharge box 30 is positioned outside the tank body 41, the sand discharge box 30 is positioned below the sand washing assembly 20, the sand discharge box 30 is connected with the bottom of the tank body 41, and the sand discharge box 30 is communicated with the inside of the tank body 41. In this embodiment, the sand discharging box 30 is used for collecting the gravel washed down by the sand washing assembly 20, and the sand discharging port of the sand discharging box 30 is opened to discharge the gravel to the sewage tank outside the tank 41.

In one possible implementation, the sand washing assembly 20 may include a water supply pipe having one end connected to a water source and the other end penetrating into the tank 41, and the other end communicating with a sand washing pipe located in the tank 41. During sand washing, water firstly enters the water supply pipe and then enters the sand washing pipe, the water flows out of the sand washing pipe to the tank body 41 for sand washing, and sand washed by the sand is accumulated in the sand discharge box 30 and then discharged to a sewage pool. Of course, the sand wash assembly 20 may have other configurations.

This embodiment is through carrying out two-stage sand washing sand removal in three phase separator 40's inside and outside, provides good separation environment for subsequent oil, separation of water, has further improved the effect of three phase separation.

In this embodiment, the tank 41 is fixed to the pry seat 70, and the tank 41 is connected to the discharge pipe assembly 120. The drain pipe assembly 120 is fixedly mounted to the pry seat 70, and the drain pipe assembly 120 is located outside the tank 41. In this embodiment, all set up three phase separator 40, with each way pipeline of three phase separator 40 complex and with three phase separator 40 complex filter and pump on sled seat 70, compact structure, take up an area of for a short time, practiced thrift the space greatly, can also migrate sled seat 70, thereby can migrate the equipment on the sled seat 70 along with it, so that the equipment is recycled and the removal transformation of mill is reformed transform, the equipment reuse rate has been improved, the equipment removal of mill, the work efficiency of transformation has been improved simultaneously. When the initial assembly is carried out on the separation equipment, only the pipeline and the electric outside communication are needed to be completed, the field workload is reduced, the working efficiency is improved, and meanwhile, the convenience is provided for the use of a user.

Example two

As shown in fig. 2, the present embodiment further defines an oil, gas, water, sand four-phase separation integrated device based on the first embodiment, further comprising: and a second sand removing filter 130. The second sand removing filter 130 is fixedly arranged on the pry seat 70, one end of the second sand removing filter 130 is connected with the crude oil inlet pipe 80, and the other end of the second sand removing filter 130 is connected with the liquid inlet of the liquid inlet pump 100. In this embodiment, the first sand-removing filter 90 and the second sand-removing filter 130 can work alternately, and when one of the sand-removing filters is stopped and cleaned, the other sand-removing filter can work normally, so that the continuous operation of the system is ensured.

Further, as shown in fig. 2, the oil, gas, water and sand four-phase separation integrated device further includes a first valve 131, a second valve 132, a third valve 133, a fourth valve 134, a first three-way joint 135 and a second three-way joint 136. The first interface of the first three-way joint 135 is communicated with the crude oil inlet pipe 80, the second interface of the first three-way joint 135 is connected with one end of the first sand removing filter 90 through a first liquid sending pipe 137, and the third interface of the first three-way joint 135 is connected with one end of the second sand removing filter 130 through a second liquid sending pipe 138. In this embodiment, the crude oil inlet pipe 80 is connected to a first three-way joint 135, a second port and a third port of the first three-way joint 135 are respectively connected to a first liquid sending pipe 137 and a second liquid sending pipe 138, and the first liquid sending pipe 137 and the second liquid sending pipe 138 are respectively connected to a first sand removing filter 90 and a second sand removing filter 130. The crude oil inputted from the crude oil inlet pipe 80 may be introduced into the first sand removing filter 90 through the first liquid sending pipe 137, or may be introduced into the second sand removing filter 130 through the second liquid sending pipe 138.

In this embodiment, the first port of the second three-way joint 136 is connected to the inlet of the inlet pump 100, the second port of the second three-way joint 136 is connected to the other end of the first sand-removing filter 90 through a third liquid-feeding pipe 139, and the third port of the second three-way joint 136 is connected to the other end of the second sand-removing filter 130 through a fourth liquid-feeding pipe 140. The liquid inlet of the liquid inlet pump 100 is connected with a second three-way joint 136 through a pipeline, a second interface and a third interface of the second three-way joint 136 are respectively connected with a third liquid sending pipe 139 and a fourth liquid sending pipe 140, the third liquid sending pipe 139 and the fourth liquid sending pipe 140 are respectively connected with the first sand removing filter 90 and the second sand removing filter 130, crude oil filtered by the first sand removing filter 90 can enter the liquid inlet pump 100 through the third liquid sending pipe 139, and crude oil filtered by the second sand removing filter 130 can also enter the liquid inlet pump 100 through the fourth liquid sending pipe 140.

In this embodiment, the first valve 131 is disposed on the first liquid sending pipe 137. The second valve 132 is provided on the second liquid sending pipe 138. The third valve 133 is provided on the third liquid sending pipe 139. The fourth valve 134 is provided on the fourth liquid sending pipe 140. When the first sand-removing filter 90 is used and the second sand-removing filter 130 is not used, the first valve 131 and the third valve 133 are opened, and the second valve 132 and the fourth valve 134 are closed. If the first sand removing filter 90 is not used, the first valve 131 and the third valve 133 are closed and the second valve 132 and the fourth valve 134 are opened when the second sand removing filter 130 is used.

Further, as shown in fig. 2, the drain pipe assembly 120 includes: a water outlet pipe 141, an electromagnetic flowmeter 142, a fifth valve 143, an oil outlet pipe 144, a rotameter 145, a sixth valve 146, an air outlet pipe 147, a precession vortex flowmeter 148, a seventh valve 149, an eighth valve 150 and a sewage discharge pipe 151. The water outlet pipe 141 is connected with the water outlet of the tank 41. The electromagnetic flow meter 142 and the fifth valve 143 are both disposed on the water outlet pipe 141. When the separated water needs to be discharged out of the tank 41, the fifth valve 143 is opened, and the separated water is delivered into the water outlet pipe 141 from the water outlet, passes through the electromagnetic flowmeter 142, and is then delivered into the corresponding equipment. The electromagnetic flow meter 142 facilitates metering of water output.

The oil outlet pipe 144 is connected with the oil outlet of the tank 41. Both the rotameter 145 and the sixth valve 146 are disposed on the flowline 144. When the separated oil needs to be discharged out of the tank 41, the sixth valve 146 is opened, and the separated oil is delivered from the oil outlet to the oil outlet pipe 144, passes through the rotameter 145 and then is sent to the corresponding equipment. The rotameter 145 facilitates metering of oil output.

The outlet pipe 147 is connected to the tank 41. A precession vortex flowmeter 148 and a seventh valve 149 are provided on the outlet pipe 147. When the separated gas needs to be discharged out of the tank 41, the seventh valve 149 is opened, and the separated gas is delivered from the gas outlet to the gas outlet pipe 147, passes through the vortex flowmeter 148 and is then delivered to the corresponding equipment. The precession vortex flowmeter 148 facilitates metering of the gas output. In this embodiment, the tank 41 is further provided with a two-stage demister, and the gas in the tank 41 enters the gas outlet pipe 147 after passing through the two-stage demister.

The drain pipe 151 is connected to a drain outlet of the tank 41. The eighth valve 150 is provided on the soil pipe 151. When the waste needs to be discharged, the eighth valve 150 is opened, and the waste in the tank 41 is sent to the drain pipe 151 through the drain outlet, and then sent to the corresponding device through the drain pipe 151.

In this embodiment, the valves and the measuring instruments of the three-phase separator 40 are integrated on the prying seat 70.

Further, as shown in fig. 7, the oil, gas, water and sand four-phase separation integrated device further includes a PLC controller 60. The PLC controller 60 is electrically connected to the first sand removal filter 90, the feed pump 100, the sand removal cyclone 110, the sand discharge tank 30, the three-phase separator 40, the second sand removal filter 130, the first valve 131, the second valve 132, the third valve 133, the fourth valve 134, the electromagnetic flow meter 142, the fifth valve 143, the rotameter 145, the sixth valve 146, the precession vortex flowmeter 148, the seventh valve 149, and the eighth valve 150. The PLC Controller 60(Programmable Logic Controller) can control the operation of each component, thereby realizing automatic operation. The PLC controller 60 may control each component to work by using a PID (Proportional Integral Derivative) method, so as to achieve a stable oil-water liquid level.

In a feasible implementation manner, the integrated device of the present embodiment is equipped with various automatic instruments and meters and a PLC controller 60, so as to achieve automatic operation, high automation degree, and convenient maintenance and operation.

EXAMPLE III

As shown in fig. 3, this embodiment further defines an oil, gas, water, and sand four-phase separation integrated device based on the first embodiment and the second embodiment, and further includes: a sand limit plate 10. In this embodiment, the tank 41 of the horizontal three-phase separator 40 can be sequentially divided into three sections, namely a pre-separation section, a separation settling section and a stabilization section, for performing three-phase separation on crude oil. The sand limiting plate 10 is fixedly arranged at the tail end of a pre-separation section in a tank 41 of the three-phase separator 40, two ends of the sand limiting plate 10 are fixedly connected with the inner wall of the tank 41, the bottom end of the sand limiting plate 10 is fixedly connected with the bottom of the tank 41, and a certain spacing distance is reserved between the top end of the sand limiting plate 10 and the top of the tank 41. The sand limiting plate 10 is positioned between the pre-separation section and the separation settling section, the liquid inlet pipe 42 of the three-phase separator 40 conveys crude oil to the pre-separation section in the tank body 41 for pre-separation treatment, and when the liquid level of the crude oil is higher than the height of the sand limiting plate 10, the crude oil can overflow the sand limiting plate 10 and continuously flow into the separation settling section and the stabilization section in the tank body 41.

In this embodiment, the sand washing assembly 20 penetrates the tank 41, the part of the sand washing assembly 20 located inside the tank 41 is located in the pre-separation section, and the sand washing assembly 20 is used for introducing the liquid outside the tank 41 into the pre-separation section inside the tank 41. The sand washing assembly 20 penetrates the interior of the tank 41 from the exterior of the tank 41 to wash the pre-separated section of the tank 41. The sand discharge box 30 is positioned outside the tank body 41, the sand discharge box 30 is positioned below the sand washing assembly 20, the sand discharge box 30 is connected with the bottom of the tank body 41, and the sand discharge box 30 is communicated with the inside of the tank body 41. In this embodiment, the sand discharging box 30 is used for collecting the gravel washed down by the sand washing assembly 20, and the sand discharging port of the sand discharging box 30 is opened to discharge the gravel to the sewage tank outside the tank 41.

In this embodiment, when the sand is to be cleaned, the sand washing assembly 20 starts to work to wash away the accumulated sand in the tank 41, and the gravel moves and accumulates in the sand discharge box 30.

Example four

As shown in fig. 4, the present embodiment further defines, on the basis of the third embodiment, that the sand washing assembly 20 includes: a water conduit 21, a distribution pipe 22 and a plurality of nozzles 23. One end of the water conduit 21 is positioned outside the tank body 41, and the other end of the water conduit 21 passes through the tank body 41 to communicate with one end of the distribution pipe 22. One end of the water conduit 21 is connected with an external water source to introduce the sand washing water into the tank 41. The distribution pipe 22 is located in a pre-separation section inside the tank 41, and the other end of the distribution pipe 22 is closed. One end of the nozzle 23 communicates with the distribution pipe 22, and the other end of the nozzle 23 faces the inner wall of the can 41 or the bottom of the can 41. The nozzles 23 are arranged at intervals, sand washing water enters the water conduit 21 and then enters the distribution pipe 22, then the sand washing water is sprayed out from the nozzles 23 to wash the gravel accumulated in the pre-separation section, the washed gravel moves and accumulates in the sand discharge box 30, and the sand discharge port of the sand discharge box 30 is opened to discharge the gravel to a sewage pool outside the tank body 41.

Further, as shown in fig. 5, the distribution pipe 22 includes: two distribution sub-tubes 24. The distributing sub-pipe 24 is of an arc-shaped bent pipe structure, and the distributing sub-pipe 24 is protruded towards the side wall of the tank body 41. In this embodiment, the two distribution sub-pipes 24 can introduce water into two sides in the tank 41, the nozzles 23 can wash and sand-remove sand from two sides in the tank 41, and wash inner walls at two ends of the tank 41 and inner walls at side surfaces, so that the sand-removing water introduced by the distribution sub-pipes 24 can wash and remove sand corners in the tank 41 more comprehensively, and the sand-removing effect is better.

In one possible implementation, the distribution sub-pipe 24 is a part of an oval shape so that the distribution sub-pipe 24 can be close to the inner walls of both ends and the inner walls of both sides of the tank 41.

Further, as shown in fig. 5, two distribution sub-pipes 24 are disposed to be axisymmetrical with respect to the axial direction of the water conduit 21. In this embodiment, the two distributing sub-pipes 24 are axisymmetric, and can uniformly introduce water in the water conduit 21 for sand washing.

Further, as shown in fig. 4 and 5, the other end of at least one of the plurality of nozzles 23 faces the inner wall of the pot 41, and the other end of the remaining at least one of the nozzles 23 faces in a direction close to the drag flask 30. The plurality of nozzles 23 spray water toward the inner wall of the tank 41 and the sand discharge box 30, respectively, so that a part of the nozzles 23 wash the gravel near the inner wall of the tank 41, the gravel can move toward the bottom of the tank 41, and at the same time, another part of the nozzles 23 wash the gravel from the bottom of the sand discharge box 30 toward the sand discharge box 30, and the gravel washed from the inner wall of the tank 41 and the gravel at the bottom can be together washed into the sand discharge box 30 and collected for subsequent discharge. In this embodiment, the nozzles 23 can further wash all the corners of accumulated sand in the tank 41, so that the sand washing and cleaning effects are better.

Further, as shown in fig. 4, the sand discharge box 30 includes: a tank 31 and an electric valve 32. The box 31 is positioned outside the tank 41, the box 31 is positioned below the sand washing assembly 20, the box 31 is connected with the bottom of the tank 41, and the box 31 is communicated with the inside of the tank 41. Grit flushed by the nozzle 23 can enter the tank 31 from the bottom of the tank 41, and the electric valve 32 is arranged at the bottom of the tank 31. When sand needs to be discharged, the electric valve 32 is controlled to be opened, and the gravel is discharged into the sewage pool.

Further, as shown in fig. 3 and 6, the oil, gas, water and sand four-phase separation integrated device further comprises a circulating water pump 50. The water outlet end of the circulating water pump 50 is connected with one end of the water conduit 21. In this embodiment, the circulating water pump 50 delivers the sand wash water into the penstock 21. The PLC controller 60 is electrically connected to the circulating water pump 50 and the electric valve 32. In this embodiment, the opening and closing of the circulating water pump 50 and the opening and closing of the electric valve 32 can be periodically and periodically controlled by a PLC Controller 60(Programmable Logic Controller). The PLC 60 realizes the automatic control of the electric valve 32 and the circulating water pump 50 to start and stop periodically, realizes the automatic sand cleaning and discharging work and improves the working efficiency.

Further, the water inlet end of the circulating water pump 50 is connected with the water outlet of the tank 41. After the crude oil in the tank body 41 is subjected to oil-water-gas three-phase separation, the separated water is discharged out of the tank body 41, and at the moment, the separated water can be introduced into the circulating water pump 50 to perform sand washing and discharging work, so that the water resource is recycled, and the water resource is saved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. The utility model provides an oil, gas, water, sand four-phase separation integrated device which characterized in that includes: the device comprises a prying seat (70), a crude oil inlet pipe (80), a first sand removal filter (90), an inlet pump (100), a sand removal cyclone (110), a sand washing assembly (20), a sand discharge box (30), a three-phase separator (40) and a discharge pipe assembly (120);

the crude oil inlet pipe (80) is fixedly arranged on the prying seat (70) and is connected with one end of the first sand removal filter (90);

the first sand removing filter (90) is fixedly arranged on the prying seat (70), and the other end of the first sand removing filter is connected with a liquid inlet of the liquid inlet pump (100);

the liquid inlet pump (100) is fixedly arranged on the prying seat (70), and the liquid outlet is connected with the desanding cyclone (110);

the sand removal cyclone (110) is fixedly arranged on the prying seat (70) and is connected with a liquid inlet at the top of the tank body (41) of the three-phase separator (40);

the sand washing assembly (20) is connected with the tank body (41);

the sand discharging box (30) is fixedly arranged on the prying seat (70), is positioned outside the tank body (41), is positioned below the sand washing assembly (20), is connected with the bottom of the tank body (41), and is communicated with the inside of the tank body (41);

the tank body (41) is fixedly arranged on the prying seat (70), and the tank body (41) is connected with the discharge pipe assembly (120);

the discharge pipe assembly (120) is fixedly arranged on the pry seat (70) and is positioned outside the tank body (41).

2. The oil, gas, water and sand four-phase separation integrated device according to claim 1, further comprising: a second sand removal filter (130);

and the second sand removing filter (130) is fixedly arranged on the prying seat (70), one end of the second sand removing filter is connected with the crude oil liquid inlet pipe (80), and the other end of the second sand removing filter is connected with a liquid inlet of the liquid inlet pump (100).

3. The oil, gas, water and sand four-phase separation integrated device is characterized by further comprising a first valve (131), a second valve (132), a third valve (133), a fourth valve (134), a first tee joint (135) and a second tee joint (136);

a first interface of the first three-way joint (135) is communicated with the crude oil inlet pipe (80), a second interface of the first three-way joint (135) is connected with one end of the first sand removal filter (90) through a first liquid sending pipe (137), and a third interface of the first three-way joint (135) is connected with one end of the second sand removal filter (130) through a second liquid sending pipe (138);

a first port of the second three-way joint (136) is connected with the liquid inlet pump (100), the second three-way joint (136) is connected with the other end of the first sand removing filter (90) through a third liquid sending pipe (139), and the second three-way joint (136) is connected with the other end of the second sand removing filter (130) through a fourth liquid sending pipe (140);

the first valve (131) is arranged on the first liquid sending pipe (137);

the second valve (132) is arranged on the second liquid sending pipe (138);

the third valve (133) is provided on the third liquid sending pipe (139);

the fourth valve (134) is disposed on the fourth liquid sending pipe (140).

4. The integrated oil, gas, water and sand four-phase separation device according to claim 3, wherein the discharge pipe assembly (120) comprises: the device comprises a water outlet pipe (141), an electromagnetic flowmeter (142), a fifth valve (143), an oil outlet pipe (144), a rotor flowmeter (145), a sixth valve (146), an air outlet pipe (147), a vortex precession flowmeter (148), a seventh valve (149), an eighth valve (150) and a sewage discharge pipe (151);

the water outlet pipe (141) is connected with a water outlet of the tank body (41);

the electromagnetic flow meter (142) and the fifth valve (143) are both arranged on the water outlet pipe (141);

the oil outlet pipe (144) is connected with an oil outlet of the tank body (41);

the rotameter (145) and the sixth valve (146) are both disposed on the flowline (144);

the air outlet pipe (147) is connected with the tank body (41);

the precession vortex flowmeter (148) and the seventh valve (149) are both disposed on the outlet pipe (147);

the sewage discharge pipe (151) is connected with a sewage discharge port of the tank body (41);

the eighth valve (150) is arranged on the sewage discharge pipe (151).

5. The oil, gas, water and sand four-phase separation integrated device according to claim 4, further comprising a PLC (60);

the PLC controller (60) is electrically connected with the first sand removing filter (90), the liquid inlet pump (100), the sand removing cyclone (110), the sand discharging box (30), the three-phase separator (40), the second sand removing filter (130), the first valve (131), the second valve (132), the third valve (133), the fourth valve (134), the electromagnetic flowmeter (142), the fifth valve (143), the rotor flowmeter (145), the sixth valve (146), the precession vortex flowmeter (148), the seventh valve (149) and the eighth valve (150).

6. The oil, gas, water and sand four-phase separation integrated device according to claim 1, further comprising: a sand-limiting plate (10);

the sand limiting plate (10) is fixedly arranged at the tail end of a pre-separation section in a tank body (41) of the three-phase separator (40), two ends and the bottom end of the sand limiting plate are fixedly connected with the inner wall and the bottom of the tank body (41) respectively, and a spacing distance is reserved between the top end of the sand limiting plate and the top of the tank body (41);

the sand washing assembly (20) penetrates into the tank body (41), and the part of the sand washing assembly positioned in the tank body (41) is positioned in the pre-separation section and used for introducing liquid outside the tank body (41) into the pre-separation section inside the tank body (41);

the sand discharging box (30) is positioned outside the tank body (41), is positioned below the sand washing assembly (20), is connected with the bottom of the tank body (41), and is communicated with the inside of the tank body (41).

7. An oil, gas, water and sand four-phase separation integrated device according to claim 6, wherein the sand washing assembly (20) comprises: a water conduit (21), a distribution pipe (22) and a plurality of nozzles (23);

one end of the water conduit (21) is positioned outside the tank body (41), and the other end of the water conduit penetrates through the tank body (41) and is communicated with one end of the distribution pipe (22);

the distribution pipe (22) is positioned in the tank body (41), and the other end of the distribution pipe is closed;

one end of the nozzle (23) is communicated with the distribution pipe (22), and the other end of the nozzle is communicated with the inside of the tank body (41); the plurality of nozzles (23) are arranged at intervals.

8. The integrated oil, gas, water and sand separating device as claimed in claim 7, wherein said distributing pipe (22) comprises: two distribution sub-pipes (24);

the distribution sub-pipe (24) is of an arc-shaped bent pipe structure and is protruded towards the side wall of the tank body (41).

9. The integrated oil, gas, water and sand separating apparatus as claimed in claim 8, wherein said sand-discharging box (30) comprises: a box body (31) and an electric valve (32);

the box body (31) is positioned outside the tank body (41), is positioned below the sand washing assembly (20), is connected with the bottom of the tank body (41), and is communicated with the inside of the tank body (41);

the electric valve (32) is arranged at the bottom of the box body (31).

10. The integrated oil, gas, water and sand separating device as recited in claim 9, further comprising a circulating water pump (50);

the water outlet end of the circulating water pump (50) is connected with one end of the water conduit (21).

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