CN114046865A - Three-phase metering system - Google Patents
Three-phase metering system Download PDFInfo
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- CN114046865A CN114046865A CN202111362674.2A CN202111362674A CN114046865A CN 114046865 A CN114046865 A CN 114046865A CN 202111362674 A CN202111362674 A CN 202111362674A CN 114046865 A CN114046865 A CN 114046865A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 180
- 238000005191 phase separation Methods 0.000 claims abstract description 58
- 239000000523 sample Substances 0.000 claims description 35
- 230000006698 induction Effects 0.000 claims description 20
- 230000005501 phase interface Effects 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 146
- 238000012360 testing method Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 238000000605 extraction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses a three-phase metering system, which is provided with a three-phase separation device and a metering device, the oil, gas and water three phases enter a three-phase separation device, the three-phase separation device separates the oil, gas and water three phases to form a water phase, an oil phase and a gas phase, the water phase, the oil phase and the gas phase are respectively driven to a metering device, the mass of the water phase and the mass of the oil phase are metered by the metering device, and the volume of the gas phase is measured to obtain the numerical values of the water content, the oil-gas ratio and the like in the three phases, thereby providing reliable basis for gas injection in the development of oil reservoirs, because the three-phase metering system is also provided with the temperature control device, the temperature control device can heat the three-phase separation device and control the three-phase separation device to carry out three-phase separation in a constant temperature environment, can provide convenience for the three-phase separation device in separating high pour-point oil or thickened oil, effectively solve the technical problem that a large amount of manpower and material resources are required to be consumed when the three-phase metering system separates the high pour-point oil or the thickened oil.
Description
Technical Field
The application belongs to the technical field of metering devices, and particularly relates to a three-phase metering system.
Background
At present, a gas injection pilot test is also planned to be developed domestically, the main scheme is to change the original part of a water injection well into a gas injection well, a gas-drive oil pilot test is developed in a laboratory for matching with a field pilot test, a three-phase metering system is required to be used at the tail end of a test process for metering oil, gas and water in the gas-drive process, and finally, the gas-oil ratio, the stage extraction degree, the water content and other related parameters in the displacement process are accurately calculated, so that an important theoretical basis is provided for guiding the field gas drive.
Because need separate oil gas water at three-phase measurement system before measuring oil gas water, in case the oil body in the oil gas water of separation is high-condensation oil or viscous crude, can often appear crude oil wall built-up phenomenon, need put the device and can only adopt the profit to measure after heating in the hot water bath, need consume a large amount of manpower and materials.
Disclosure of Invention
The technical problem that a large amount of manpower and material resources are required to be consumed when a three-phase metering system separates high-condensate oil or thick oil can be solved to a certain extent at least. To this end, the present application provides a three-phase metering system.
The embodiment of the application provides a three-phase measurement system, includes:
the three-phase separation device is used for separating oil, gas and water;
the metering device is connected with the three-phase separation device and is used for metering the mass of the oil phase, the mass of the water phase and the volume of the gas phase separated by the three-phase separation device;
and the temperature control device is used for keeping the temperature of the three-phase separation device constant and heating the three-phase separation device.
In some embodiments, the three-phase separation device comprises:
the upper end of the oil-water two-phase pipe is provided with a three-phase inlet and a gas phase outlet, and the lower end of the oil-water two-phase pipe is provided with a gas phase outlet;
the oil pipe is positioned on one side of the oil-water two-phase pipe, and an oil phase outlet is formed in the side surface of the oil pipe;
the oil phase flow guide pipe is positioned between the oil-water two-phase pipe and the oil pipe;
the two ends of the first hydraulic pump are communicated with the water phase discharge port and the metering device through pipelines;
and two ends of the second hydraulic pump are communicated with the oil phase discharge port and the metering device through pipelines.
In some embodiments, the oil phase flow guide pipe extends from a side surface of the oil-water two-phase pipe toward a lower end of the oil pipe.
In some embodiments, the three-phase separation device further comprises:
the water pipe is positioned on the other side of the oil-water two-phase pipe;
and the water phase flow guide pipe is positioned between the water pipe and the oil-water two-phase pipe and is positioned below the oil phase flow guide pipe.
In some embodiments, the three-phase separation device further comprises:
and the two communicating pipes are respectively positioned between the oil pipe and the oil-water two-phase pipe and between the water pipe and the oil-water two-phase pipe and are positioned above the oil phase flow guide pipe.
In some embodiments, the three-phase separation device further comprises:
the first resistance induction switch is electrically connected with the first hydraulic pump;
the second resistance induction switch is electrically connected with the second hydraulic pump;
the two water phase probe heads are respectively fixed at two ends of the water pipe and are electrically connected with the first resistance induction switch, and a water phase interface gap is formed between the two water phase probe heads;
the two oil phase probe heads are respectively fixed at two ends of the water pipe and electrically connected with the second resistance induction switch, and an oil phase interface gap is formed between the two oil phase probe heads.
In some embodiments, the oil phase interfacial gap is located on one side of the oil phase discharge port.
In some embodiments, the temperature control device comprises:
the oil pipe, the water pipe and the oil-water two-phase pipe are all fixed on the box body and extend towards the inside of the constant temperature cavity;
the electric heating plate is fixed on the side wall of the constant temperature cavity;
the temperature controller is positioned outside the box body and is electrically connected with the electric heating plate;
the thermal circulation fan is fixed on the box body and is communicated with the constant temperature cavity;
and the temperature probe is fixed on the box body and is electrically connected with the temperature controller.
In some embodiments, the metering device comprises:
the flowmeter is communicated with the gas phase outlet, and a spiral decoder is arranged inside the flowmeter;
two metering units, two the metering units respectively with first hydraulic pump with the second hydraulic pump intercommunication.
In some embodiments, the three-phase metrology system further comprises a data acquisition device comprising:
the data acquisition module is electrically connected with the spiral decoder and the two metering units;
and the display is electrically connected with the data acquisition module.
The embodiment of the application has at least the following beneficial effects:
when the three-phase metering system is provided with the three-phase separation device and the metering device to carry out a three-phase separation test, the oil, gas and water three phases enter a three-phase separation device, the three-phase separation device separates the oil, gas and water three phases to form a water phase, an oil phase and a gas phase, the water phase, the oil phase and the gas phase are respectively driven to a metering device, the mass of the water phase and the mass of the oil phase are metered by the metering device, and the volume of the gas phase is measured to obtain the numerical values of the water content, the oil-gas ratio and the like in the three phases, thereby providing reliable basis for gas injection in the development of oil reservoirs, because the three-phase metering system is also provided with the temperature control device, the temperature control device can heat the three-phase separation device and control the three-phase separation device to carry out three-phase separation in a constant temperature environment, can provide convenience for the three-phase separation device in separating high pour-point oil or thickened oil, effectively solve the technical problem that a large amount of manpower and material resources are required to be consumed when the three-phase metering system separates the high pour-point oil or the thickened oil.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 shows a schematic diagram of a three-phase metering system in an embodiment of the present application;
FIG. 2 is a schematic diagram of a three-phase separation device of a three-phase metering system according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a temperature control device of a three-phase metering system according to an embodiment of the present application;
reference numerals:
10-three-phase separation device 11-oil-water two-phase pipe 12-oil pipe
13-oil phase flow guide pipe 14-first hydraulic pump 15-second hydraulic pump
16-water pipe 17-water phase draft tube 18-communicating pipe
19-first resistance induction switch 21-second resistance induction switch 22-water phase probe head
23-water phase interface gap 24-oil phase probe head 25-oil phase interface gap
26-metering device 30-temperature control device 31-box
32-electric heating plate 33-temperature controller 34-thermal circulation fan
35-temperature probe 40-data acquisition device 41-data acquisition module
42-display 111-three-phase inlet 112-gas phase outlet
113-water phase outlet 121-oil phase outlet 311-constant temperature cavity
261-flow meter 262-metering unit.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The application is described below with reference to specific embodiments in conjunction with the following drawings:
in one embodiment of the present application, as shown in fig. 1, there is provided a three-phase metering system comprising:
the three-phase separation device 10 is used for separating oil, gas and water;
a metering device 26, the metering device 26 being connected to the three-phase separation device 10 and being configured to meter the mass of the oil phase, the mass of the water phase and the volume of the gas phase separated by the three-phase separation device 10;
and the temperature control device 30 is used for keeping the temperature of the three-phase separation device 10 constant and heating the temperature control device 30.
Specifically, in the three-phase metering system, the three-phase separation device 10 and the metering device 26 are arranged, so that when a three-phase separation test is carried out, the oil, gas and water three phases enter a three-phase separation device 10, the three-phase separation device 10 separates the oil, gas and water three phases into a water phase, an oil phase and a gas phase, and the water phase, the oil phase and the gas phase are respectively driven to a metering device 26, the mass of the water phase and the mass of the oil phase are metered by the metering device 26, and the volume of the gas phase is measured to obtain the numerical values of the water content, the oil-gas ratio and the like in the three phases, thereby providing reliable basis for gas injection in the development of oil reservoirs, because the three-phase metering system is also provided with the temperature control device, the temperature control device can heat the three-phase separation device 10 and control the three-phase separation device 10 to carry out three-phase separation in a constant temperature environment, can provide convenience for the three-phase separation device 10 in separating high pour-point oil or thickened oil, effectively solve the technical problem that a large amount of manpower and material resources are required to be consumed when the three-phase metering system separates the high pour-point oil or the thickened oil.
In another embodiment of the present application, as shown in fig. 2, a three-phase separation apparatus 10 includes:
the upper end of the oil-water two-phase pipe 11 is provided with a three-phase inlet 111 and a gas phase outlet 112, and the lower end of the oil-water two-phase pipe 11 is provided with a water phase outlet 113;
the oil pipe 12 is positioned at one side of the oil-water two-phase pipe 11, and an oil phase outlet 121 is arranged at the side surface of the oil pipe 12;
the oil phase flow guide pipe 13 is positioned between the oil-water two-phase pipe 11 and the oil pipe 12;
a first hydraulic pump 14, both ends of the first hydraulic pump 14 are communicated with the water phase discharge port 113 and the metering device 26 through pipelines;
and a second hydraulic pump 15, both ends of the second hydraulic pump 15 are communicated with the oil phase discharge port 121 and the metering device 26 through pipelines.
Specifically, when the three-phase separation device 10 performs a three-phase separation test, enough three-phase bodies are introduced into the oil-water two-phase pipe 11 through the three-phase inlet 111 at the upper end of the oil-water two-phase pipe 11, since the density of the water phase is greater than that of the oil phase, at this time, the water phase sinks below the oil phase under the action of gravity, the oil-water interface is located at the pipe orifice of the oil phase flow guide pipe 13, the oil phase above the water phase enters the oil pipe 12 from the oil phase flow guide pipe 13, the gas phase is discharged from the gas phase discharge port 112 and enters the metering device 26, the water phase enters the metering device 26 from the water phase discharge port 113 under the drive of the first hydraulic pump 14, and the oil phase enters the metering device 26 from the oil phase discharge port 121 under the drive of the second hydraulic pump 15, so as to realize the separation of the oil-water-oil phases.
In another embodiment of the present application, as shown in fig. 2, the oil phase flow guide pipe 13 extends from the side surface of the oil-water two-phase pipe 11 toward the lower end of the oil pipe 12.
Specifically, the extending direction of the oil phase flow guide pipe 13 is the same as the flowing direction of the oil phase, which facilitates the oil phase to flow into the oil pipe 12 from the oil-water two-phase pipe 11.
In another embodiment of the present application, as shown in fig. 2, the three-phase separator 10 further includes:
the water pipe 16 is positioned at the other side of the oil-water two-phase pipe 11;
and the water phase flow guide pipe 17 is positioned between the water pipe 16 and the oil-water two-phase pipe 11 and is positioned below the oil phase flow guide pipe 13.
Specifically, before the three-phase separation test is performed, the three-phase separation device 10 firstly introduces a water body into the oil-water two-phase pipe 11 through the three-phase inlet 111, the water body flows into the water pipe 16 from the water-phase draft tube 17 after entering the oil-water two-phase pipe 11, and after a certain amount of water is introduced, the oil body is introduced through the three-phase inlet 111, after a certain amount of water is introduced, the oil body in the oil-water two-phase pipe 11 slowly rises, and after the water body rises to a certain height, the oil body flows into the oil pipe 12 from the oil-phase draft tube 13, and the oil body is continuously introduced until the oil interface of the oil pipe 12 is flush with the water interface of the water pipe 16. And then a three-phase separation test is carried out, after oil-gas-water three phases are introduced into the oil-water two-phase pipe 11 from the three-phase inlet 111, the gas phases are discharged from the gas phase outlet 112 and enter the metering device 26, the water phase sinks to enable the water interface in the water pipe 16 to rise, the oil phase enters the oil pipe 12 from the oil phase draft tube 13 to enable the oil interface in the oil pipe 12 to rise, the first hydraulic pump 14 and the second hydraulic pump 15 are started to respectively extract the oil phase and the water phase, so that the oil interface and the oil-water interface return to the original positions, accurate extraction and metering of oil and water can be realized, and the metering accuracy of a three-phase metering system is effectively improved.
In another embodiment of the present application, as shown in fig. 2, the three-phase separator 10 further includes:
and two communicating pipes 18, wherein the two communicating pipes 18 are respectively positioned between the oil pipe 12 and the oil-water two-phase pipe 11, and between the water pipe 16 and the oil-water two-phase pipe 11, and are positioned above the oil phase flow guide pipe 13.
Specifically, the two communication pipes 18 are arranged to enable the oil pipe 12 and the water pipe 16 to be communicated with the oil-water two-phase pipe 11, so that gas entering the oil pipe 12 and the water pipe 16 can enter the oil-water two-phase pipe 11 from the communication pipes 18 and be discharged from the gas phase discharge port 112, the gas phase metering precision is improved, meanwhile, as the gas pressure in the oil pipe 12 and the water pipe 16 rises when the oil interface and the water interface rise, the gas in the oil pipe 12 and the water pipe 16 enters the oil-water two-phase pipe 11, so as to reduce the influence of the gas pressure change on the height of the oil interface and the water interface, and the liquid in the oil-water two-phase pipe 11 is pressed down when entering the oil-water two-phase pipe 11, so that the oil phase and the water phase can enter the oil pipe 12 and the water pipe 16 more favorably.
In another embodiment of the present application, as shown in fig. 2, the three-phase separator 10 further includes:
a first resistance sensing switch 19, the first resistance sensing switch 19 being electrically connected to the first hydraulic pump 14;
a second resistance sensing switch 21, the second resistance sensing switch 21 being electrically connected to the second hydraulic pump 15;
the two water phase probe heads 22 are respectively fixed at two ends of the water pipe 16 and electrically connected with the first resistance induction switch 19, and a water phase interface gap 23 is formed between the two water phase probe heads 22;
two oil phase probe heads 24, the two oil phase probe heads 24 are respectively fixed at two ends of the water pipe 16 and electrically connected with the second resistance induction switch 21, and an oil phase interface gap 25 is formed between the two oil phase probe heads 24.
Specifically, before the three-phase separation test, after the water body and the oil body are introduced, the water phase probe 22 located below is located in the water phase of the water pipe 16, the oil phase probe 24 located below is located in the oil phase of the oil pipe 12, the water interface and the oil interface are respectively located between the two water phase probe 22 and between the two oil phase probe 24, and the distances between the oil interface and the water interface and between the oil phase probe 24 and the water phase probe 22 are between 1 mm and 1.5 mm.
After oil, gas and water phases are introduced, an oil interface and a water interface rise and are in contact with an oil phase probe head 24 and a water phase probe head 22 which are positioned above, a first resistance induction switch 19 and a second resistance induction switch 21 respectively sense the resistance between the two water phase probe heads 22 and the two oil phase probe heads 24 to change, the first resistance induction switch 19 and the second resistance induction switch 21 respectively control a first hydraulic pump 14 and a second hydraulic pump 15 to start to extract the water phase and the oil phase, simultaneously, the water interface and the oil interface descend, when the water interface and the oil interface are respectively separated from being in contact with the water phase probe head 22 and the oil phase probe head 24 which are positioned above, the first resistance induction switch 19 and the second resistance induction switch 21 respectively sense the resistance between the two water phase probe heads 22 and the two oil phase probe heads 24 to change again, the first resistance induction switch 19 and the second resistance induction switch 21 respectively control the first hydraulic pump 14 and the second hydraulic pump 15 to close, the automatic control of the three-phase separation work of the three-phase separation device 10 is realized.
In this embodiment, the hydraulic pump is a micro peristaltic pump with adjustable rotation speed.
In another embodiment of the present application, as shown in fig. 2, oil phase interface gap 25 is located on one side of oil phase discharge port 121.
Specifically, since there may be a small amount of water phase entering the bottom of the oil pipe 12 from the oil phase draft tube 13 in the oil-water separation process of the three-phase separation device 10, the oil phase interface gap 25 is disposed on one side of the oil phase discharge port 121, so that the second hydraulic pump 15 can be effectively prevented from pumping the water phase at the bottom, and the oil phase pumping precision is improved.
In another embodiment of the present application, as shown in fig. 3, the temperature control device 30 includes:
the oil pipe 12, the water pipe 16 and the oil-water two-phase pipe 11 are all fixed on the box body 31 and extend towards the inside of the constant temperature cavity 311;
an electric heating plate 32, the electric heating plate 32 being fixed to a side wall of the thermostatic chamber 311;
a temperature controller 33, the temperature controller 33 being located outside the case 31 and electrically connected to the electric heating plate 32;
the thermal circulation fan 34 is fixed on the box body 31 and is communicated with the constant temperature cavity 311;
and the temperature probe 35, wherein the temperature probe 35 is fixed on the box body 31 and is electrically connected with the temperature controller 33.
Specifically, when the three-phase separation device 10 is used for a separation test, the temperature controller 33 controls the electric heating plate 32 to be opened, the oil pipe 12, the water pipe 16 and the oil-water two-phase pipe 11 which are positioned in the constant temperature cavity 311 are heated, meanwhile, the thermal circulation fan 34 ventilates to prevent the temperature of the constant temperature cavity 311 from being too high, the temperature probe 35 senses the temperature in the constant temperature cavity 311 and feeds the temperature back to the temperature controller 33, the temperature controller 33 controls the temperature in the constant temperature cavity 311 to be kept between 60 ℃ and 70 ℃, and through the arrangement of the temperature control device 30, the technical problem that a large amount of manpower and material resources are consumed when a three-phase metering system separates high-condensation oil or thick oil is effectively solved.
In another embodiment of the present application, as shown in fig. 1, the metering device 26 includes:
a flow meter 261, the flow meter 261 communicating with the gas phase outlet 112 via a pipe 18, the flow meter 261 having a screw decoder therein;
two metering units 262, the two metering units 262 being in communication with the first hydraulic pump 14 and the second hydraulic pump 15, respectively.
Specifically, the flow meter 261 can meter the flow rate of the gas phase, the helical decoder can facilitate the transmission of the gas flow rate, and the two metering units 262 respectively meter the mass of the water phase and the oil phase. Finally, the metering function of the metering device 26 for the water phase, the oil phase and the gas phase is realized.
In this embodiment, further, the two metering units 262 each include a metering scale and a beaker, into which the oil phase and the water phase are passed and weighed by the metering scale.
In another embodiment of the present application, as shown in fig. 1, the three-phase metering system further includes a data acquisition device 40, and the data acquisition device 40 includes:
the data acquisition module 41, the data acquisition module 41 is electrically connected with the spiral decoder and the two metering units 262;
and the display 42, wherein the display 42 is electrically connected with the data acquisition module 41.
Specifically, the metering balance is electrically connected with the data acquisition module 41 through a signal line, the flow meter 261 transmits the flow of the gas phase to the data acquisition module 41 through a spiral decoder, the metering balance transmits the mass of the oil phase and the water phase to the data acquisition module 41 through the signal line, the display 42 displays the related data of the water phase, the oil phase and the gas phase, meanwhile, the data acquisition time interval of the display 42 can be set through manual setting, the acquired oil-gas-water data can also be acquired, and the gas flooding oil production dynamic characteristics, namely the oil production amount, the liquid production amount, the water content, the oil-gas ratio and the relation between the extraction degree and the time, are calculated. The oil-gas ratio is the ratio of one ton of crude oil to be extracted by injecting a ton of gas when the oil reservoir is developed by gas injection; the extraction degree is the percentage of the accumulated oil extraction in the original geological reserves within any time after one oil reservoir is developed, and reliable basis is provided for developing the oil reservoir.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. 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 of the present application, 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" indicate orientations or positional relationships based on the orientation or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 application. 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.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A three-phase metering system, characterized in that it comprises:
the three-phase separation device is used for separating oil, gas and water;
the metering device is connected with the three-phase separation device and is used for metering the mass of the oil phase, the mass of the water phase and the volume of the gas phase separated by the three-phase separation device;
and the temperature control device is used for keeping the temperature of the three-phase separation device constant and heating the three-phase separation device.
2. The oil and water metering system of claim 1, wherein the three-phase separation device comprises:
the upper end of the oil-water two-phase pipe is provided with a three-phase inlet and a gas phase outlet, and the lower end of the oil-water two-phase pipe is provided with a gas phase outlet;
the oil pipe is positioned on one side of the oil-water two-phase pipe, and an oil phase outlet is formed in the side surface of the oil pipe;
the oil phase flow guide pipe is positioned between the oil-water two-phase pipe and the oil pipe;
the two ends of the first hydraulic pump are communicated with the water phase discharge port and the metering device through pipelines;
and two ends of the second hydraulic pump are communicated with the oil phase discharge port and the metering device through pipelines.
3. The oil-water metering system of claim 2, wherein the oil phase flow guide pipe extends from a side surface of the oil-water two-phase pipe toward a lower end of the oil pipe.
4. The oil and water metering system of claim 2, wherein the three-phase separation device further comprises:
the water pipe is positioned on the other side of the oil-water two-phase pipe;
and the water phase flow guide pipe is positioned between the water pipe and the oil-water two-phase pipe and is positioned below the oil phase flow guide pipe.
5. The oil and water metering system of claim 4, wherein the three-phase separation device further comprises:
and the two communicating pipes are respectively positioned between the oil pipe and the oil-water two-phase pipe and between the water pipe and the oil-water two-phase pipe and are positioned above the oil phase flow guide pipe.
6. The oil and water metering system of claim 4, wherein the three-phase separation device further comprises:
the first resistance induction switch is electrically connected with the first hydraulic pump;
the second resistance induction switch is electrically connected with the second hydraulic pump;
the two water phase probe heads are respectively fixed at two ends of the water pipe and are electrically connected with the first resistance induction switch, and a water phase interface gap is formed between the two water phase probe heads;
the two oil phase probe heads are respectively fixed at two ends of the water pipe and electrically connected with the second resistance induction switch, and an oil phase interface gap is formed between the two oil phase probe heads.
7. The oil and water metering system of claim 6 wherein the oil phase interfacial gap is located on one side of the oil phase discharge port.
8. The oil and water metering system of claim 4, wherein the temperature control device comprises:
the oil pipe, the water pipe and the oil-water two-phase pipe are all fixed on the box body and extend towards the inside of the constant temperature cavity;
the electric heating plate is fixed on the side wall of the constant temperature cavity;
the temperature controller is positioned outside the box body and is electrically connected with the electric heating plate;
the thermal circulation fan is fixed on the box body and is communicated with the constant temperature cavity;
and the temperature probe is fixed on the box body and is electrically connected with the temperature controller.
9. The oil and water metering system of any one of claims 1-7, wherein the metering device comprises:
the flowmeter is communicated with the gas phase outlet, and a spiral decoder is arranged inside the flowmeter;
two metering units, two the metering units respectively with first hydraulic pump with the second hydraulic pump intercommunication.
10. The oil and water metering system of claim 8, wherein the three-phase metering system further comprises a data acquisition device comprising:
the data acquisition module is electrically connected with the spiral decoder and the two metering units;
and the display is electrically connected with the data acquisition module.
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