CN110656921A - Oil field produced liquid processing apparatus - Google Patents
Oil field produced liquid processing apparatus Download PDFInfo
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- CN110656921A CN110656921A CN201911097042.0A CN201911097042A CN110656921A CN 110656921 A CN110656921 A CN 110656921A CN 201911097042 A CN201911097042 A CN 201911097042A CN 110656921 A CN110656921 A CN 110656921A
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- 239000007788 liquid Substances 0.000 title claims abstract description 120
- 238000012545 processing Methods 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 155
- 238000004581 coalescence Methods 0.000 claims abstract description 65
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 230000018044 dehydration Effects 0.000 claims abstract description 15
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims description 61
- 238000005188 flotation Methods 0.000 claims description 31
- 230000001105 regulatory effect Effects 0.000 claims description 28
- 238000007667 floating Methods 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 82
- 235000019198 oils Nutrition 0.000 description 81
- 235000019476 oil-water mixture Nutrition 0.000 description 13
- 238000002604 ultrasonography Methods 0.000 description 12
- 239000000839 emulsion Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002569 water oil cream Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides an oilfield produced liquid treatment device, which comprises a horizontal tank, wherein the horizontal tank is provided with a liquid inlet port, and a rectifying chamber, a coalescing chamber, an ultrasonic chamber, a settling chamber, an oil chamber and a water chamber are arranged in the horizontal tank; the rectification chamber is connected with the liquid inlet port and is used for rectifying the oilfield produced liquid entering the liquid inlet port; the coalescence chamber is used for performing coalescence dehydration on the rectified oilfield produced liquid in the rectification chamber; the ultrasonic chamber is used for carrying out ultrasonic demulsification and demulsification agent demulsification on the oil-containing part of the oilfield produced fluid from the coalescence chamber after coalescence and dehydration; the settling chamber is used for receiving the oilfield produced fluid after demulsification in the ultrasonic chamber and carrying out settling separation; the oil chamber and the water chamber are used for respectively receiving the oil and the water separated by the settling chamber; wherein, the rectification chamber, the coalescence chamber, the ultrasonic chamber and the space above the settling chamber in the height direction are communicated. The oilfield produced liquid treatment device can reduce the water content in the separated oil, reduce the heating load of the rear-section heating furnace and reduce the cost.
Description
Technical Field
The invention relates to the technical field of oil fields, in particular to an oil field produced liquid treatment device.
Background
With the development and application of tertiary oil recovery technologies such as high water-cut period and polymer flooding of an oil field, produced liquid contains a large amount of polymers and surfactants, the thickness of an interfacial film of oil-water emulsion is increased, the stability and the conductivity are enhanced, and the difficulty of oil-water separation is increased. The polymer increases the viscosity of the produced liquid, and the chemical demulsification speed is reduced, so that the water content of the outlet of a common three-phase separator is higher, the heating load of a rear-section heating furnace is increased, the fuel consumption is increased, and the cost is increased.
Disclosure of Invention
In view of the problems in the background art, the present invention aims to provide an oilfield produced fluid treatment apparatus which can reduce the water content in the separated oil, reduce the heating load of a rear-stage heating furnace, and reduce the cost.
In order to achieve the aim, the invention provides an oilfield produced liquid treatment device which comprises a horizontal tank, wherein the horizontal tank is provided with a liquid inlet port, and a rectifying chamber, a coalescing chamber, an ultrasonic chamber, a settling chamber, an oil chamber and a water chamber are arranged in the horizontal tank from one end of the horizontal tank in the length direction to the other end of the horizontal tank in the length direction; the rectification chamber is connected with the liquid inlet port and is used for rectifying the oilfield produced liquid entering the liquid inlet port; the coalescence chamber is adjacent to and communicated with the rectification chamber and is used for performing coalescence dehydration on the rectified oilfield produced fluid in the rectification chamber; the ultrasonic chamber is adjacent to and communicated with the coalescence chamber, is provided with an ultrasonic oscillator and a demulsifier addition port, the demulsifier addition port is used for adding a demulsifier from the outside, the ultrasonic oscillator is used for being connected with an external ultrasonic forming device to form ultrasonic waves, and the ultrasonic chamber is used for performing ultrasonic demulsification and demulsifier demulsification on an oil-containing part of oilfield produced fluid from the coalescence chamber after coalescence and dehydration; the settling chamber is adjacent to and communicated with the ultrasonic chamber and is used for receiving the oilfield produced fluid demulsified by the ultrasonic chamber and carrying out settling separation; the oil chamber and the water chamber are adjacent to the settling chamber and are used for respectively receiving the oil and the water separated by the settling chamber; wherein, the rectification chamber, the coalescence chamber, the ultrasonic chamber and the space above the settling chamber in the height direction are communicated.
In one embodiment, the rectification chamber is provided with an impingement plate, a liquid distribution pipe, a rectification chamber overflow plate and a rectification chamber baffle plate; the impingement baffle is arranged on the inner wall of the horizontal tank; one end of the liquid distribution pipe is communicated with the liquid inlet port, and the other end of the liquid distribution pipe faces the impingement plate; the rectification chamber overflow plate is positioned between the liquid distribution pipe and the rectification chamber baffle plate along the length direction of the horizontal tank, and the rectification chamber overflow plate, the liquid distribution pipe and the rectification chamber baffle plate are separated from each other along the length direction of the horizontal tank; the rectification chamber baffle is adjacent to the coalescence chamber; along the height direction of the horizontal tank, the upper edge of the overflow plate of the rectification chamber is lower than the upper edge of the baffle of the rectification chamber, the upper edge of the overflow plate of the rectification chamber is higher than the lower edge of the baffle of the rectification chamber, and the lower edge of the baffle of the rectification chamber is spaced from the facing wall surface of the horizontal tank; along the width direction of the horizontal tank, the two ends of the overflow plate of the rectification chamber and the two ends of the baffle of the rectification chamber are hermetically connected with the inner wall of the horizontal tank.
In an embodiment, the coalescing chamber is provided with a coalescing module comprising a set of coalescing plates.
In one embodiment, the coalescing chamber is provided with a coalescing chamber water outlet located on the bottom wall of the horizontal tank.
In one embodiment, the coalescing chamber is further provided with a radio frequency admittance meter located on the top wall of the horizontal tank.
In one embodiment, the ultrasonic chamber is also provided with an ultrasonic chamber overflow plate and an ultrasonic chamber baffle plate; along the length direction of the horizontal tank, the ultrasonic vibrator and the demulsifier inlet are positioned between the ultrasonic chamber overflow plate and the ultrasonic chamber baffle plate; the upper end of the overflow plate of the ultrasonic chamber is lower than the upper end of the baffle of the ultrasonic chamber along the height direction of the horizontal tank; along the width direction of the horizontal tank, two ends of the overflow plate of the ultrasonic chamber and two ends of the baffle of the ultrasonic chamber are hermetically connected with the inner wall of the horizontal tank.
In one embodiment, the ultrasonic vibrator comprises a primary amplitude transformer, a flange, a secondary amplitude transformer and a transmitting tool head which are connected in sequence along a straight line; the flange is arranged on a mounting hole of the horizontal tank, the primary amplitude transformer is positioned outside the horizontal tank, and the primary amplitude transformer is used for being connected with the secondary amplitude transformer of the ultrasonic forming device and the transmitting tool head is positioned in the horizontal tank; the ultrasound forming device includes an ultrasonic power source and a transducer.
In one embodiment, the ultrasonic chamber baffle is provided with a through hole; the settling chamber is provided with a water distribution pipe and an oil receiving tank; the bottom wall of the water distribution pipe is provided with a through hole which penetrates along the height direction; along the length direction of the horizontal tank, the water distribution pipe is connected between the ultrasonic chamber baffle and the water chamber, one end of the water distribution pipe is communicated with the through hole of the ultrasonic chamber baffle, and the other end of the water distribution pipe is closed; the water distribution pipe is spaced from the bottom wall of the horizontal tank along the height direction of the horizontal tank; along the width direction of the horizontal tank, two sides of the water distribution pipe are respectively spaced from the inner wall of the horizontal tank; the oil receiving tank is arranged above the water distribution pipe, is arranged between the baffle of the ultrasonic chamber and the oil chamber and is spaced from the top wall of the horizontal tank.
In one embodiment, the horizontal tank is also provided with an air floating chamber; the oilfield produced liquid treatment device also comprises a partition plate, an oil guide pipe, a circulating pump, a first regulating valve and an ejector; the air flotation chamber is arranged among the ultrasonic chamber, the oil chamber and the water chamber, and the air flotation chamber and the settling chamber are parallel in the width direction and are separated by a partition plate; the oil guide pipe penetrates through the partition plate, two ends of the oil guide pipe are respectively positioned at the upper part of the air flotation chamber and the lower part of the settling chamber, and the oil guide pipe is used for inputting upper-layer oil subjected to air flotation separation in the air flotation chamber into the settling chamber; the wall of the horizontal tank forming the air flotation chamber is provided with an air outlet and an air inlet; the ejector is respectively connected with the gas outlet, the first regulating valve and the inlet; the circulating pump is connected between the water outlet of the coalescence chamber and the first regulating valve; the first regulating valve is in communication connection with the radio frequency admittance instrument.
In one embodiment, the oilfield produced liquid treatment device further comprises a coaming and a partition plate, wherein the coaming is connected with the inner wall of the horizontal tank in a sealing manner and forms a sealed oil chamber and a sealed water chamber; the division plate is used for isolating the sealed oil chamber and the sealed water chamber from each other and enabling the oil chamber and the water chamber to be arranged side by side along the width direction of the horizontal tank; the hydroecium is provided with water level regulator, and water level regulator's entrance point is installed on the bounding wall and is close to the bottom of drip chamber, and water level regulator's exit end is located the hydroecium, and water level regulator is used for leading into the hydroecium with the water of drip chamber with the hydroecium intercommunication.
The invention has the following beneficial effects: the ultrasonic chamber is used for performing ultrasonic demulsification and demulsification of a demulsifier on an oil-containing part of oilfield produced fluid subjected to coalescence and dehydration in the coalescence chamber, so that physical ultrasonic demulsification and chemical agent demulsification are coupled, and the demulsification effect of complex crude oil (containing a large amount of polymers and surfactants, for example) is improved, thereby reducing the water content of separated oil, lightening the heating load of a rear-section heating furnace and reducing the cost.
Drawings
FIG. 1 is a schematic cross-sectional view of an oilfield production fluid treatment apparatus according to the present invention as viewed from one side in the width direction.
FIG. 2 is a schematic diagram of an ultrasonic forming device and an ultrasonic vibrator of an oilfield produced fluid treatment device.
Fig. 3 is a schematic plan view of the oil chamber and the water chamber as viewed in the longitudinal direction.
Fig. 4 is a schematic plan view of the settling chamber and the flotation chamber viewed in the length direction.
Wherein the reference numerals are as follows:
10 horizontal tank 411 perforations
10a liquid inlet port 42 oil collecting tank
10c inlet 1 rectifying chamber 6 water chamber
11 baffle 61 water level regulator
12 liquid distribution pipe 611 inlet end
13 outlet end of overflow plate 612 of rectification chamber
14 rectification chamber baffle 62 water chamber water outlet
2 polymerization chamber 7 air flotation chamber
21 coalescence module 71 air-float chamber water outlet
211 coalescence plate group 72 air flotation chamber desanding port
22 sand removing port D float liquid level regulator of coalescence chamber
V-shaped safety valve port at water outlet of 23 coalescence chamber
24 ultrasonic forming device of radio frequency admittance instrument 20
3 ultrasonic chamber 20a ultrasonic power supply
31 ultrasonic vibrator 20b transducer
311 first-stage amplitude transformer 30 spacing plate
312 flange 40 oil guide pipe
313 two-stage amplitude transformer 50 circulating pump
314 launch tool head 60 first regulating valve
33 ultrasonic chamber overflow plate 80 second regulating valve
34 ultrasonic chamber baffle 90 coaming
341 through hole 100 divider plate
35 support plate H height direction
4 length direction of settling chamber L
41 water distribution pipe W width direction
Detailed Description
The accompanying drawings illustrate embodiments of the present invention and it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms, and therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.
Further, expressions of directions indicated for explaining operations and configurations of respective members in the embodiment, such as upper, lower, left, right, front, and rear, are not absolute but relative, and although these indications are appropriate when the respective members are in the positions shown in the drawings, when the positions are changed, the directions should be interpreted differently to correspond to the changes.
Fig. 1 is a schematic cross-sectional view of an oilfield production fluid treatment apparatus according to the present invention, as viewed from one side in the width direction W, as shown in fig. 1, the oilfield production fluid treatment apparatus including a horizontal tank 10.
A rectifying chamber 1, a coalescing chamber 2, an ultrasonic chamber 3, a settling chamber 4, an oil chamber 5, and a water chamber 6 are provided in the horizontal tank 10 from one end of the horizontal tank 10 in the longitudinal direction L to the other end of the horizontal tank 10 in the longitudinal direction L. The spaces above the height direction H of the rectifying chamber 1, the coalescing chamber 2, the ultrasonic chamber 3 and the settling chamber 4 communicate, whereby the gas separated in these chambers can be made to collect in the spaces where these chambers communicate with each other. The horizontal tank 10 may also be provided with an air flotation chamber 7 inside, and accordingly, the rectification chamber 1, the coalescence chamber 2, the supersonic chamber 3, the sedimentation chamber 4, and the space above the air flotation chamber 7 in the height direction H communicate with each other, whereby the gas separated in these chambers can be collected in the space where these chambers communicate with each other.
The horizontal tank 10 is provided with a liquid inlet port 10 a. The liquid inlet port 10a is used for allowing produced liquid of the oil field to enter the horizontal tank 10. The inlet port 10a is preferably horizontally arranged. The oil field produced liquid is oil-gas-water three-phase mixed liquid. The horizontal tank 10 may further be provided with a mounting hole 10d, and the mounting hole 10d allows an ultrasonic vibrator 31, which will be described later, to be mounted on the horizontal tank 10, thereby enabling the ultrasonic vibrator 31 to be detachably mounted, and facilitating maintenance and replacement of the ultrasonic vibrator 31. Further, the horizontal tank 10 may be provided with an air outlet 10b and an inlet 10c on the wall constituting the air flotation chamber 7. The gas outlet 10b serves to lead the gas collected in the spaces communicating with each other in the horizontal tank 10 out of the horizontal tank 10. The top of the horizontal tank 10 may also be provided with a relief valve port V. The relief valve V is used to ensure that the gas pressure in the canister 10 is within a safe range. The safety valve V is normally closed, and when the gas pressure in the canister 10 rises above a predetermined value, the safety valve V opens to discharge the gas in the canister 10, so that the gas pressure in the canister 10 is reduced to below the predetermined value, thereby protecting the personal safety and the operation of the canister 10.
The rectifying chamber 1 is connected to the inlet port 10 a. The rectification chamber 1 is used for rectifying oilfield produced liquid entering from the liquid inlet port 10a, as shown in fig. 1, the rectification chamber 1 is provided with a baffle plate 11, a liquid distribution pipe 12, a rectification chamber overflow plate 13 and a rectification chamber baffle plate 14. The impingement plate 11 is provided on the inner wall of the horizontal tank 10. One end of the liquid distribution pipe 12 is communicated with the liquid inlet port 10a, and the other end of the liquid distribution pipe 12 faces the impingement plate 11. The rectification chamber overflow plate 13 is positioned between the liquid distribution pipe 12 and the rectification chamber baffle 14 along the length direction L of the horizontal tank 10, and the rectification chamber overflow plate 13, the liquid distribution pipe 12 and the rectification chamber baffle 14 are spaced from each other along the length direction L of the horizontal tank 10. The rectification chamber baffle 14 is adjacent to the coalescing chamber 2. Along the height direction H of the horizontal tank 10, the upper edge of the rectification chamber overflow plate 13 is lower than the upper edge of the rectification chamber baffle plate 14, the upper edge of the rectification chamber overflow plate 13 is higher than the lower edge of the rectification chamber baffle plate 14, and the lower edge of the rectification chamber baffle plate 14 is spaced from the facing wall surface of the horizontal tank 10; along the width direction W of the horizontal tank 10, both ends of the rectification chamber overflow plate 13 and both ends of the rectification chamber baffle plate 14 are hermetically connected with the inner wall of the horizontal tank 10. Thereby, oilfield production fluid from the inlet port 10a is caused to flow in the length direction L from the rectification chamber 1 to the coalescence chamber 2.
Because the oilfield produced liquid entering from the liquid inlet port 10a usually has high pressure and high speed, the oilfield produced liquid is introduced into the rectification chamber 1 by the liquid distribution pipe 12, the oilfield produced liquid passes through a long path of the liquid distribution pipe 12, the pressure and the speed at the tail end of the liquid distribution pipe 12 are reduced, the oilfield produced liquid is sprayed on the impact plate 11 from the tail end of the liquid distribution pipe 12, the oilfield produced liquid splashes by the impact plate 11, meanwhile, by means of the blocking effect of the overflow plate 13 of the rectification chamber and the inner wall of the horizontal tank 10, the splashed oilfield produced liquid is decelerated and falls back due to gravity, so that the pressure and the speed of the oilfield produced liquid entering the rectification chamber 1 are released and reduced, the oilfield produced liquid gradually gathers between the overflow plate 13 of the rectification chamber and the part of the horizontal tank 10 located at the side of the liquid inlet port 10a, when the liquid level of the gathered oilfield produced liquid is higher than the impact plate 11, the gathered oilfield produced liquid also plays a role of slowing down the pressure and the speed of the oilfield produced liquid sprayed from the The flushing is effected, and thereafter, the liquid level of the collected oilfield production liquid between the rectification chamber overflow plate 13 and the portion of the horizontal tank 10 on the side of the liquid inlet port 10a rises more and more smoothly upward until the liquid level is higher than the upper edge of the rectification chamber overflow plate 13, so that the oilfield production liquid overflows through the upper edge of the rectification chamber overflow plate 13 into the space (in the length direction L) spaced between the rectification chamber overflow plate 13 and the rectification chamber baffle 14 and falls, and the falling oilfield production liquid enters the coalescence chamber 2 through the space spaced from the facing wall surface of the horizontal tank 10 by the lower edge of the rectification chamber baffle 14. The arrangement of the overflow plate 13 and the baffle plate 14 of the rectification chamber not only reverses the flow direction of the oilfield produced fluid in the rectification chamber 1, but also lengthens the flow path entering the coalescence chamber 2, so that the pressure and the speed of the oilfield produced fluid entering the coalescence chamber 2 are regulated to a very stable state, and the coalescence dehydration of the coalescence chamber 2 is facilitated when the pressure and the speed of the oilfield produced fluid are regulated to a stable state.
The liquid distribution pipe 12 preferably has a bent structure, and specifically, as shown in fig. 1, the liquid distribution pipe 12 is a horizontal U-shape, so that the oilfield produced liquid in the liquid distribution pipe 12 is turned at two corners, thereby reducing the pressure and speed of the oilfield produced liquid, and being beneficial to shortening the time for the flow field of the oilfield produced liquid to reach stability in the rectification chamber 1.
The impingement plate 11 faces the tail end of the liquid distribution pipe 12, so that oilfield produced liquid sprayed from the tail end of the liquid distribution pipe 12 is prevented from being directly sprayed onto the inner wall of the horizontal tank 10, fatigue damage to the horizontal tank 10 is reduced, and the service life of the horizontal tank 10 is prolonged.
The coalescence chamber 2 is adjacent to and communicated with the rectification chamber 1, and the coalescence chamber 2 is used for performing coalescence dehydration on the rectified oilfield produced fluid in the rectification chamber 1.
The coalescence chamber 2 is provided with a coalescence module 21, a coalescence chamber desanding port 22, a coalescence chamber water outlet 23 and a radio frequency admittance instrument 24.
The coalescing module 21 includes a set of coalescing plates 211. The bottom of the coalescing plate group 211 is higher than the lower edge of the rectification chamber baffle 14, and the bottom of the coalescing plate group 211 is spaced from the bottom wall of the horizontal tank 10, so that there is a corresponding space between the bottom of the coalescing plate group 211 and the bottom wall of the horizontal tank 10 to accommodate oilfield production fluid entering through the space between the rectification chamber overflow plate 13 and the rectification chamber baffle 14 and through the space between the lower edge of the rectification chamber baffle 14 and the bottom wall of the horizontal tank 10. The oil field produced liquid entering the space also rises in liquid level along with the increase of the amount, when the liquid level rises to enter the coalescence plate group 211, the coalescence plate group 211 can play a role in coalescence and dehydration, and the coalescence plate group 211 enables small oil drops of the oil field produced liquid entering the coalescence plate group 211 to be coalesced into large oil drops, so that oil-water separation is realized. The collection of coalescing plates 211 may be constructed using a plurality of corrugated plates or a plurality of inclined plates. The collection of coalescing plates 211 may be supported within the horizontal tank 10 using corresponding insulating support brackets (not shown). In addition, the coalescence module 21 can adopt a physical coalescence dehydration mode, and also can adopt other modes, such as an electric coalescence mode, the breakdown volt-second characteristic of the emulsion in the oilfield produced fluid is utilized in the coalescence chamber 2, so that the high-frequency pulse output time is shorter than the time required by the emulsion to form short-circuit breakdown between electrodes, and the pulse output is closed before the breakdown is formed, thereby establishing a stable high-voltage high-frequency electromagnetic field to realize coalescence dehydration. The adoption of the electric coalescence dehydration mode is very beneficial to the demulsification and coalescence dehydration of the water-in-oil type emulsion and can realize large-scale continuous operation.
A coalescing chamber desanding port 22 is located in the bottom wall of the horizontal tank 10 for periodic desanding. The coalescence chamber water outlet 23 is positioned on the bottom wall of the horizontal tank 10 and is used for discharging coalesced and dehydrated water in the coalescence chamber 2 out of the horizontal tank 10 (for complete discharge or for introduction into the air flotation chamber 7). The radio frequency admittance meter 24 is located on the top wall of the canister 10.
The radio frequency admittance meter 24 is an improvement over conventional capacitive level meters. The radio frequency admittance instrument 24 uses the capacitance between the high frequency current measuring probe and the two plates of the capacitor to calculate the liquid level, the radio frequency admittance instrument 24 detects the electrical interface with step change of conductivity, and the conductivity of the oil and water medium is greatly different, so the oil-water interface can be clearly measured.
The ultrasound chamber 3 is adjacent to and in communication with the coalescing chamber 2. The ultrasonic chamber 3 is used for carrying out ultrasonic demulsification and demulsification of demulsifier on the oil-containing part of the coalesced and dehydrated oilfield produced fluid from the coalescing chamber 2.
Fig. 2 is a schematic diagram of an ultrasonic forming device 20 and an ultrasonic vibrator 31 of an oilfield produced fluid processing device.
Referring to fig. 1 and 2, the ultrasound chamber 3 is provided with an ultrasound transducer 31 and a demulsifier inlet 32. The ultrasound chamber 3 may also be provided with an ultrasound chamber overflow plate 33 and an ultrasound chamber baffle 34. The ultrasound chamber 3 may also be provided with a support plate 35.
The ultrasonic vibrator 31 is used for connection with an external ultrasonic forming device 20 to form an ultrasonic wave. The ultrasonic forming device 20 includes an ultrasonic power supply 20a and a transducer 20 b. The ultrasonic vibrator 31 is attached to the horizontal tank 10 in the width direction W of the horizontal tank 10.
The ultrasonic vibrator 31 includes a primary horn 311, a flange 312, a secondary horn 313, and a transmitting tool head 314, which are connected in this order along a straight line. The flange 312 is mounted on the mounting hole 10d of the horizontal tank 10, the primary horn 311 is located outside the horizontal tank 10, the primary horn 311 is used for connecting to the ultrasonic forming device 20, and the secondary horn 313 and the launching tool head 314 are located inside the horizontal tank 10. The transmitting tool head 314 is wavy in shape, so that the turbulence of ultrasonic waves is enhanced, and the demulsification performance of the ultrasonic waves is improved.
The number of the ultrasonic vibrators 31 is not limited, and the number of the ultrasonic vibrators 31 can be multiple or single, and is set according to actual conditions. For example, 12 mounting holes 10d are provided in fig. 1, in other words, the ultrasonic vibrators 31 may be 12 and arranged in two rows. The plurality of ultrasonic vibrators 31 are attached to the horizontal tank 10 from top to bottom in the height direction H. The ultrasonic vibrator 31 and the demulsifier inlet 32 are located between the ultrasonic chamber overflow plate 33 and the ultrasonic chamber baffle plate 34 along the length direction L of the horizontal tank 10.
The demulsifier addition port 32 is used to externally add a demulsifier to thereby achieve demulsification by the demulsifier. The number of emulsion breaker inlets 32 may be determined according to actual needs. In fig. 1, the number of emulsion breaker inlets 32 is two, arranged at the top and bottom of the ultrasound chamber 3, respectively. Specifically, the demulsifier introduction port 32 is provided on the wall of the horizontal tank 10. The emulsion breaker inlet 32 may be opened and closed by any suitable means.
The upper end of the overflow plate 33 of the ultrasonic chamber is lower than the upper end of the baffle 34 of the ultrasonic chamber along the height direction H of the horizontal tank 10; along the width direction W of the horizontal tank 10, two ends of the ultrasonic chamber overflow plate 33 and two ends of the ultrasonic chamber baffle plate 34 are hermetically connected with the inner wall of the horizontal tank 10. The ultrasound chamber baffle 34 is provided with a through hole 341, the through hole 341 communicating the ultrasound chamber 3 and the settling chamber 4.
The support plate 35 is located below the ultrasound chamber baffle 34; along the length direction L of the horizontal tank 10, two ends of the supporting plate 35 are respectively and fixedly connected with the ultrasonic chamber overflow plate 33 and the ultrasonic chamber baffle 34; both ends of the support plate 35 are fixedly and hermetically connected to the inner wall of the canister 10 along the width direction W of the canister 10, respectively.
The oil-containing part (which can be called as oil-water mixed liquid) of the oilfield produced liquid after coalescence and dehydration in the coalescence chamber 2 enters the ultrasonic chamber 3 through an ultrasonic chamber overflow plate 33, an ultrasonic power supply 20a, a transducer 20b and an ultrasonic vibrator 31 form a serial loop, ultrasonic waves are transmitted to the oil-water mixed liquid acting in the ultrasonic chamber 3 step by step through the transducer 20b, a first-stage amplitude transformer 311, a flange 312, a second-stage amplitude transformer 313 and a transmitting tool head 313, the ultrasonic waves cause the local tensile stress in emulsion liquid drops in the oil-water mixed liquid to form negative pressure, the reduction of the pressure causes the gas originally dissolved in the emulsion liquid drops to be supersaturated and escape from the liquid of the emulsion liquid drops to form small bubbles, the small bubbles can continuously move, grow or suddenly break along with the vibration of the surrounding oil-water mixed liquid, and the surrounding oil-water mixed liquid suddenly rushes into the small bubbles to generate high temperature and high pressure when the small bubbles break, the high temperature and high pressure reduce the strength of the oil-water interface film and reduce the viscosity of the emulsified liquid drop, so that the emulsified liquid drop is deformed and broken to realize demulsification. Meanwhile, the chemical demulsifier is added through the demulsifier addition port 32, and the ultrasonic wave can enable the chemical demulsifier to quickly permeate into an oil layer and reach an oil-water interface film, so that the physical ultrasonic demulsification is coupled with the chemical demulsification, and the demulsification effect of the complex crude oil is improved. Similarly, the ultrasonic wave, the high temperature and the high pressure can promote the dispersion uniformity of the chemical demulsifier, improve the moving speed of the chemical demulsifier and improve the demulsification effect and efficiency of coupling (i.e. physicochemical coupling) of the chemical demulsifier and the chemical demulsifier. The oil-water mixed liquid after the physicochemical coupling demulsification flows into the settling chamber 4 from the ultrasonic chamber 3 through the through hole 341 of the ultrasonic chamber baffle 34.
The settling chamber 4 is adjacent to and communicated with the ultrasonic chamber 3, and the settling chamber 4 is used for receiving the oilfield produced fluid demulsified by the ultrasonic chamber 3 and carrying out settling separation.
The settling chamber 4 is provided with a water distributor 41 and an oil sump 42. The settling chamber 4 may also be provided with a settling chamber desanding port 43.
The bottom wall of the water distribution pipe 41 is provided with a through hole 411 penetrating in the height direction H. Along the length direction L of the horizontal tank 10, the water distribution pipe 41 is connected between the ultrasonic chamber baffle 34 and the water chamber 6, one end of the water distribution pipe 41 is communicated with the through hole 341 of the ultrasonic chamber baffle 34, and the other end of the water distribution pipe 41 is closed; the water distribution pipe 41 is spaced from the bottom wall of the horizontal tank 10 along the height direction H of the horizontal tank 10; both sides of the water distribution pipe 41 are spaced apart from the inner wall of the horizontal tank 10 in the width direction W of the horizontal tank 10, respectively. Preferably, the perforations 411 are evenly distributed over the bottom wall of the water distributor 41. The diameter of the perforation 411 allows the oil-water mixture after the physicochemical coupling demulsification to pass through the perforation 411 in the up-down direction H. The water distribution pipe 41 may be a square pipe, a circular pipe, or the like.
The oil collecting tank 42 is positioned above the water distributing pipe 41, and the oil collecting tank 42 is arranged between the ultrasonic chamber baffle 34 and the oil chamber 5 and is spaced from the top wall of the horizontal tank 10.
A settling chamber desanding port 43 is located on the bottom wall of the horizontal tank 10 for periodic desanding.
The oil-water mixture after the physicochemical coupling demulsification flows into the water distribution pipe 41 of the settling chamber 4 from the ultrasonic chamber 3 through the through hole 341 of the ultrasonic chamber baffle 34 and then falls through the perforation 411 on the bottom wall of the water distribution pipe 41, the oil-water mixture below the water distribution pipe 41 accumulates and the liquid level floats to the bottom surface exceeding the bottom wall of the water distribution pipe 41, the perforation 411 on the water distribution pipe 41 is immersed by the liquid level of the oil-water mixture, the floating oil-water mixture gradually fills the settling chamber 4, and in the process of filling the oil-water mixture, the oil-water mixture is layered by virtue of the oil-water density difference, namely, oil floats on the upper part and. The oil floating on the upper portion is collected through the oil collecting sump 42. Therefore, when the oil-water mixture from the ultrasonic chamber 3 is just injected into the settling chamber 4, the space between the water distribution pipe 41 and the bottom wall of the horizontal tank 10 is used as a storage space, when the liquid level of the oil-water mixture in the storage space floats to exceed the bottom surface of the bottom wall of the water distribution pipe 41, the storage space is filled with the oil-water mixture, then the liquid level of the oil-water mixture gradually floats from the bottom surface of the water distribution pipe 41 and submerges the water distribution pipe 41, and in the process that the liquid level of the oil-water mixture gradually floats above the water distribution pipe 41, the perforations 411 distributed on the bottom wall of the water distribution pipe 41 generate turbulence at the perforated 411. When the bottom wall of the water distribution pipe 41 is provided with the evenly distributed perforations 411, the turbulence generated by the adjacent perforations 411 can be offset with each other, so that the flow field in the oil-water mixed liquid is regulated and stabilized, and the floating of the whole liquid surface is more stable. Therefore, in order to make the perforations 411 distributed on the water distributor 41 better perform the function of adjusting the stability of the oil-water mixture, the perforations 411 on the bottom wall of the water distributor 41 are preferably arranged in a uniform and equally spaced manner (for example, a single row is arranged in equal intervals, or a plurality of rows are arranged in equal intervals), and the interval between the adjacent perforations 411 is set so that the turbulence generated at the adjacent perforations 411 can cancel each other out.
Fig. 3 is a schematic plan view of the oil chamber and the water chamber as viewed in the longitudinal direction.
An oil chamber 5 and a water chamber 6 are adjacent to the settling chamber 4, the oil chamber 5 and the water chamber 6 being for separating oil and water respectively received by the settling chamber 4.
The oilfield produced liquid treatment device also comprises a coaming 90 and a partition plate 100, wherein the coaming 90 is connected with the inner wall of the horizontal tank 10 in a sealing way and forms a sealed oil chamber 5 and a sealed water chamber 6; the partition plate 100 serves to isolate the sealed oil chamber 5 and water chamber 6 from each other and to arrange the oil chamber 5 and water chamber 6 side by side in the width direction W of the horizontal tank 10.
The water chamber 6 is provided with a water level regulator 61, an inlet end 611 of the water level regulator 61 is installed on the enclosing plate 90 near the bottom of the settling chamber 4, an outlet end 612 of the water level regulator 61 is located in the water chamber 6, and the water level regulator 61 is used for communicating the settling chamber 4 and the water chamber 6 to introduce the water of the settling chamber 4 into the water chamber 6.
The oil chamber 5 is provided with an oil chamber oil outlet 51 on the bottom wall of the horizontal tank 10. The water chamber 6 is provided with a water chamber outlet 62 located on the bottom wall of the horizontal tank 10. The water chamber 6 and the oil chamber 5 are both provided with a floater liquid level regulator D which is respectively connected with the oil outlet 51 of the oil chamber and the water outlet 61 of the water chamber. The float liquid level regulators D of the water chamber 6 and the oil chamber 5 are matched with the oil chamber oil outlet 51 and the water chamber water outlet 61, so that the liquid levels in the water chamber 6 and the oil chamber 5 are controlled at a certain height. The floater liquid level regulator D can be a floater liquid level regulating mechanism consisting of a floating ball, a connecting rod, a weighting block and an oil outlet regulating valve, and can also be a self-operated floater liquid level regulating mechanism consisting of a floating ball, a connecting rod and an oil outlet regulating valve.
Fig. 4 is a schematic plan view of the settling chamber and the flotation chamber viewed in the length direction.
The oilfield produced fluid treatment device further comprises a partition plate 30, an oil guide pipe 40, a circulating pump 50, a first regulating valve 60 and an ejector 70. The oilfield produced fluid treatment apparatus further includes a second regulating valve 80.
The air flotation chamber 7 is arranged between the ultrasonic chamber 3 and the oil chamber 5 and the water chamber 6, and the air flotation chamber 7 and the settling chamber 4 are juxtaposed in the width direction W and are separated by the partition plate 30.
The oil guide pipe 40 passes through the partition plate 30, and both ends of the oil guide pipe 40 are respectively positioned at the upper part of the air flotation chamber 7 and the lower part of the settling chamber 4, and the oil guide pipe 40 is used for inputting the upper oil subjected to air flotation separation in the air flotation chamber 7 into the settling chamber 4. The ejector 70 is connected to the gas outlet 10b, the first regulating valve 60, and the inlet 10c, respectively. The circulation pump 50 is connected between the coalescer chamber water outlet 23 and the first regulator valve 60. The first control valve 60 is communicatively connected to the RF admittance meter 24 such that the height of the oil-water interface detected by the RF admittance meter 24 controls the first control valve 60 to be an electrical control valve. A second regulating valve 80 is connected to the line between the gas outlet 10b and the ejector 70 for regulating the pressure in the line between the gas outlet 10b and the ejector 70, preferably for holding the pressure (i.e. maintaining the pressure constant). The second regulating valve 80 is a pressure regulating valve, preferably a self-operated regulating valve.
The air flotation chamber 7 is provided with an air flotation chamber water outlet 71 and an air flotation chamber desanding opening 72.
An air flotation chamber water outlet 71 is located on the bottom wall of the canister 10 for individual drainage. The separately discharged water can be used for detecting the air floatation oil removal effect of the air floatation chamber.
An air flotation chamber desanding port 72 is located on the bottom wall of the horizontal tank 10 for periodic desanding.
The gas in the horizontal tank 10 is supplied to the ejector 70 through the gas outlet 10b, the water coalesced and separated in the coalescing chamber 2 is supplied to the ejector 70 through the coalescing chamber water outlet 23, the circulating pump 50 and the first regulating valve 60, the gas from the horizontal tank 10 and the water coalesced and separated in the coalescing chamber 2 are mixed in the ejector 70, and the water of the mixed gas enters the gas floating chamber 7 through the inlet 10 c. Before the water mixed with gas enters the air floating chamber 7 through the inlet 10c, the water mixed with gas has higher pressure than the pressure in the horizontal tank 10 due to the action of the circulating pump 50 and the ejector 70, when the air floating chamber 7 is initially empty, the water mixed with gas is filled in the air floating chamber, when the water level is filled to be higher than the inlet 10c, the water mixed with gas entering the air floating chamber 7 through the inlet 10c releases micro-bubbles due to the reduction of the pressure of the horizontal tank 10, the micro-bubbles float upwards to float oil droplets, and therefore air floating separation of oil and water is achieved. The floating oil enters the oil conduit 40 and flows into the settling chamber 4 when reaching the opening of the oil conduit 40 on the air flotation chamber 7 side. Therefore, the oil is further separated from the water coalesced and separated in the coalescence chamber 2 through the arrangement of the air flotation chamber 7, and the oil separation effect is improved. The first regulating valve 60 is in communication connection with the radio frequency admittance instrument 24, and the requirements of the overflow of the coalescence chamber 2 to the ultrasonic chamber 3 and the water outlet of the coalescence chamber 2 to the air flotation chamber 2 are met through the height of the oil-water interface detected by the radio frequency admittance instrument 24 and the flow regulation control of the first regulating valve 60, in other words, the overflow of the coalescence chamber 2 to the ultrasonic chamber 3 and the water outlet of the coalescence chamber 2 to the air flotation chamber 2 can be simultaneously carried out or alternatively carried out.
The above detailed description describes exemplary embodiments, but is not intended to limit the combinations explicitly disclosed herein. Thus, unless otherwise specified, various features disclosed herein can be combined together to form a number of additional combinations that are not shown for the sake of brevity.
Claims (10)
1. An oilfield produced liquid treatment device is characterized by comprising a horizontal tank (10),
the horizontal tank (10) is provided with a liquid inlet port (10a),
a rectifying chamber (1), a coalescing chamber (2), an ultrasonic chamber (3), a settling chamber (4), an oil chamber (5) and a water chamber (6) are arranged in the horizontal tank (10) from one end of the horizontal tank (10) in the length direction (L) to the other end of the horizontal tank (10) in the length direction (L);
the rectification chamber (1) is connected with the liquid inlet port (10a), and the rectification chamber (1) is used for rectifying the oilfield produced liquid entering from the liquid inlet port (10 a);
the coalescence chamber (2) is adjacent to and communicated with the rectification chamber (1) and is used for performing coalescence dehydration on the rectified oilfield produced fluid in the rectification chamber (1);
the ultrasonic chamber (3) is adjacent to and communicated with the coalescence chamber (2), the ultrasonic chamber (3) is provided with an ultrasonic vibrator (31) and a demulsifier adding port (32), the demulsifier adding port (32) is used for adding a demulsifier from the outside, the ultrasonic vibrator (31) is used for being connected with an external ultrasonic forming device (20) to form ultrasonic waves, and the ultrasonic chamber (3) is used for performing ultrasonic demulsification and demulsifier demulsification on an oil-containing part of oil field produced liquid from the coalescence and dehydration of the coalescence chamber (2);
the settling chamber (4) is adjacent to and communicated with the ultrasonic chamber (3), and the settling chamber (4) is used for receiving the oilfield produced fluid demulsified by the ultrasonic chamber (3) and carrying out settling separation;
the oil chamber (5) and the water chamber (6) are adjacent to the settling chamber (4), and the oil chamber (5) and the water chamber (6) are used for respectively receiving the oil and the water separated from the settling chamber (4);
wherein, the rectification chamber (1), the coalescence chamber (2), the ultrasonic chamber (3) and the space above the settling chamber (4) in the height direction (H) are communicated.
2. The oilfield produced fluid processing apparatus of claim 1,
the rectification chamber (1) is provided with an impingement plate (11), a liquid distribution pipe (12), a rectification chamber overflow plate (13) and a rectification chamber baffle plate (14);
the impingement plate (11) is arranged on the inner wall of the horizontal tank (10);
one end of the liquid distribution pipe (12) is communicated with the liquid inlet port (10a), and the other end of the liquid distribution pipe (12) faces the impingement plate (11);
the rectification chamber overflow plate (13) is positioned between the liquid distribution pipe (12) and the rectification chamber baffle plate (14) along the length direction (L) of the horizontal tank (10), and the rectification chamber overflow plate (13), the liquid distribution pipe (12) and the rectification chamber baffle plate (14) are spaced from each other along the length direction (L) of the horizontal tank (10);
the rectification chamber baffle (14) is adjacent to the coalescence chamber (2);
along the height direction (H) of the horizontal tank (10), the upper edge of the rectification chamber overflow plate (13) is lower than the upper edge of the rectification chamber baffle plate (14), the upper edge of the rectification chamber overflow plate (13) is higher than the lower edge of the rectification chamber baffle plate (14), and the lower edge of the rectification chamber baffle plate (14) is spaced from the facing wall surface of the horizontal tank (10);
along the width direction (W) of the horizontal tank (10), the two ends of the overflow plate (13) of the rectification chamber and the two ends of the baffle (14) of the rectification chamber are hermetically connected with the inner wall of the horizontal tank (10).
3. The oilfield production fluid treatment apparatus of claim 1, wherein the coalescing chamber (2) is provided with a coalescing module (21), the coalescing module (21) comprising a set of coalescing plates (211).
4. The oilfield produced fluid treatment device according to claim 1, wherein the coalescence chamber (2) is provided with a coalescence chamber water outlet (23) located on the bottom wall of the horizontal tank (10).
5. The oilfield produced fluid treatment device according to claim 4, wherein the coalescence chamber (2) is further provided with a radio frequency admittance meter (24) located on the top wall of the horizontal tank (10).
6. The oilfield produced fluid processing apparatus of claim 1,
the ultrasonic chamber (3) is also provided with an ultrasonic chamber overflow plate (33) and an ultrasonic chamber baffle plate (34),
along the length direction (L) of the horizontal tank (10), the ultrasonic vibrator (31) and the demulsifier inlet (32) are positioned between the ultrasonic chamber overflow plate (33) and the ultrasonic chamber baffle plate (34);
the upper end of the overflow plate (33) of the ultrasonic chamber is lower than the upper end of the baffle plate (34) of the ultrasonic chamber along the height direction (H) of the horizontal tank (10);
along the width direction (W) of the horizontal tank (10), two ends of the ultrasonic chamber overflow plate (33) and two ends of the ultrasonic chamber baffle plate (34) are hermetically connected with the inner wall of the horizontal tank (10).
7. The oilfield produced fluid processing apparatus of claim 6,
the ultrasonic vibrator (31) comprises a primary amplitude transformer (311), a flange (312), a secondary amplitude transformer (313) and a transmitting tool head (314) which are connected in sequence along a straight line;
the flange (312) is arranged on a mounting hole (10d) of the horizontal tank (10), the primary amplitude transformer (311) is positioned outside the horizontal tank (10), the primary amplitude transformer (311) is used for being connected with a secondary amplitude transformer (313) of the ultrasonic forming device (20), and the transmitting tool head (314) is positioned in the horizontal tank (10);
the ultrasonic forming device (20) includes an ultrasonic power supply (20a) and a transducer (20 b).
8. The oilfield produced fluid processing apparatus of claim 6,
the ultrasonic chamber baffle (34) is provided with a through hole (341);
the settling chamber (4) is provided with a water distribution pipe (41) and an oil receiving tank (42);
the bottom wall of the water distribution pipe (41) is provided with a perforation (411) which penetrates along the height direction (H);
along the length direction (L) of the horizontal tank (10), the water distribution pipe (41) is connected between the ultrasonic chamber baffle (34) and the water chamber (6), one end of the water distribution pipe (41) is communicated with the through hole (341) of the ultrasonic chamber baffle (34), and the other end of the water distribution pipe (41) is closed; the water distribution pipe (41) is spaced from the bottom wall of the horizontal tank (10) along the height direction (H) of the horizontal tank (10); along the width direction (W) of the horizontal tank (10), two sides of the water distribution pipe (41) are respectively spaced from the inner wall of the horizontal tank (10);
the oil receiving tank (42) is positioned above the water distribution pipe (41), and the oil receiving tank (42) is arranged between the ultrasonic chamber baffle (34) and the oil chamber (5) and is spaced from the top wall of the horizontal tank (10).
9. The oilfield produced fluid processing apparatus of claim 5,
an air floating chamber (7) is also arranged in the horizontal tank (10);
the oilfield produced liquid treatment device also comprises a partition plate (30), an oil guide pipe (40), a circulating pump (50), a first regulating valve (60) and an ejector (70);
the air flotation chamber (7) is arranged between the ultrasonic chamber (3), the oil chamber (5) and the water chamber (6), and the air flotation chamber (7) and the settling chamber (4) are parallel in the width direction (W) and are separated by a partition plate (30);
the oil guide pipe (40) penetrates through the partition plate (30), two ends of the oil guide pipe are respectively positioned at the upper part of the air floatation chamber (7) and the lower part of the settling chamber (4), and the oil guide pipe (40) is used for inputting upper-layer oil subjected to air floatation separation in the air floatation chamber (7) into the settling chamber (4);
the wall of the horizontal tank (10) forming the air flotation chamber (7) is provided with an air outlet (10b) and an air inlet (10 c);
the ejector (70) is respectively connected with the gas outlet (10b), the first regulating valve (60) and the inlet (10 c);
the circulating pump (50) is connected between the water outlet (23) of the coalescence chamber and the first regulating valve (60);
the first regulating valve (60) is in communication connection with the radio frequency admittance meter (24).
10. The oilfield produced fluid processing apparatus of claim 1,
the oilfield produced liquid treatment device also comprises a coaming (90) and a partition plate (100),
the coaming (90) is connected with the inner wall of the horizontal tank (10) in a sealing way to form a sealed oil chamber (5) and a sealed water chamber (6);
the division plate (100) is used for isolating the sealed oil chamber (5) and the water chamber (6) from each other and enabling the oil chamber (5) and the water chamber (6) to be arranged side by side along the width direction (W) of the horizontal tank (10);
the water chamber (6) is provided with a water level regulator (61), the inlet end (611) of the water level regulator (61) is arranged on the enclosing plate (90) and close to the bottom of the settling chamber (4), the outlet end (612) of the water level regulator (61) is positioned in the water chamber (6), and the water level regulator (61) is used for communicating the settling chamber (4) with the water chamber (6) so as to introduce the water in the settling chamber (4) into the water chamber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097042.0A CN110656921A (en) | 2019-11-11 | 2019-11-11 | Oil field produced liquid processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911097042.0A CN110656921A (en) | 2019-11-11 | 2019-11-11 | Oil field produced liquid processing apparatus |
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| CN110656921A true CN110656921A (en) | 2020-01-07 |
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| CN201911097042.0A Pending CN110656921A (en) | 2019-11-11 | 2019-11-11 | Oil field produced liquid processing apparatus |
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| CN112282726A (en) * | 2020-11-02 | 2021-01-29 | 中国石油天然气集团有限公司 | External coalescence rectifying device for oilfield produced liquid and treatment method |
| CN114540076A (en) * | 2022-03-21 | 2022-05-27 | 中石化石油工程技术服务有限公司 | Crude oil extraction liquid double-field processing device |
| CN114538667A (en) * | 2022-03-21 | 2022-05-27 | 中国石油化工股份有限公司 | Crude oil produced liquid divides water and water treatment integrated device |
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Country or region after: China Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC PETROLEUM ENGINEERING JIANGHAN Corp. Address before: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Applicant before: SINOPEC OILFIELD SERVICE Corp. Country or region before: China Applicant before: SINOPEC ENERGY CONSERVATION AND ENVIRONMENTAL PROTECTION ENGINEERING TECHNOLOGY Co.,Ltd. |