CN109650319B - Low water content crude oil handover metering system - Google Patents
Low water content crude oil handover metering system Download PDFInfo
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- CN109650319B CN109650319B CN201811573273.XA CN201811573273A CN109650319B CN 109650319 B CN109650319 B CN 109650319B CN 201811573273 A CN201811573273 A CN 201811573273A CN 109650319 B CN109650319 B CN 109650319B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
- B67D7/16—Arrangements of liquid meters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
Abstract
The invention discloses a low-water-content crude oil handover metering system, and belongs to the field of crude oil transportation. The embodiment of the invention obtains the volume of the low-water-content crude oil conveyed by the main pipe based on the first flowmeter arranged on the main pipe, and obtains the density of the low-water-content crude oil based on the second flowmeter arranged on the branch pipe, thereby avoiding artificial factors existing in the detection of the density of the low-water-content crude oil by manual sampling and greatly reducing the manual labor degree. Furthermore, based on the obtained volume of the low water content crude oil, the density of the low water content crude oil and other related parameters, the more accurate clean oil quality in the low water content crude oil can be calculated through computer equipment, and the automation degree of the whole low water content crude oil handover metering system is improved.
Description
Technical Field
The invention relates to the field of crude oil transportation, in particular to a low-water-content crude oil handover metering system.
Background
The metering of the transferred low-water crude oil is needed in the low-water crude oil transfer process between the stations, the metering process can be realized by a low-water crude oil transfer metering system, and the accuracy of the low-water crude oil transfer metering system is crucial because the metering of the low-water crude oil is an important process in the low-water crude oil transfer process.
Currently, a common low-water crude oil cross-over metering system includes a dual rotor flow meter. Specifically, in the process of low-water-content crude oil handover metering, the low-water-content crude oil is subjected to volume measurement of the low-water-content crude oil through the double-rotor flow meter, a low-water-content crude oil sample is extracted at fixed points manually at regular time to perform density measurement, pressure and temperature correction is performed on the basis of the measured volume of the low-water-content crude oil and the density of the low-water-content crude oil, and further, the quality of the low-water-content crude oil under standard pressure and standard temperature is calculated on the basis of the corrected volume of the low-water-content crude oil and the density of the low-water-content crude.
Based on above-mentioned low moisture crude oil handing-over measurement system, because the moisture content of this low moisture crude oil is inhomogeneous, and there is the human factor in the manual sampling process, consequently, the density of this low moisture crude oil that measures is inaccurate, contains the quality of water in the quality of the low moisture crude oil that measures out, and, this manual sampling process has increaseed artifical work degree, and degree of automation is lower.
Disclosure of Invention
The embodiment of the invention provides a low-water-content crude oil handover metering system which can solve the problems of inaccurate handover metering result and low automation degree of low-water-content crude oil. The technical scheme is as follows:
in one aspect, a low water crude oil cross-over metering system is provided, the system comprising:
a main pipe for transporting low water crude oil;
the oil inlet and the oil outlet of the first flow meter are respectively connected with the main pipe, and the first flow meter is used for metering the volume of the low-water-content crude oil conveyed by the main pipe;
the oil inlet and the oil outlet of the filter are respectively connected with the main pipe and are positioned on one side close to the oil inlet of the first flow meter, and the filter is used for filtering out solid particles in the low-water-content crude oil;
the oil inlet and the oil outlet of the branch pipe are respectively connected with the main pipe and are positioned on one side close to the oil outlet of the first flow meter;
an oil inlet and an oil outlet of the second flowmeter are respectively connected with the branch pipe, and the second flowmeter is used for metering the density of the low water content crude oil;
the pressure transmitter is connected with the branch pipe and is positioned on one side close to an oil inlet of the second flowmeter, and the pressure transmitter is used for detecting the pressure of the low-water-content crude oil;
the temperature transmitter is connected with the main pipe and is positioned on one side close to the oil outlets of the branch pipes, and the temperature transmitter is used for detecting the temperature of the low water content crude oil;
a computer device for calculating a net oil mass in the low water crude based on parameters in the first flow meter, the second flow meter, the pressure transmitter, and the temperature transmitter.
In one possible design, the first flow meter is a dual rotor flow meter.
In one possible design, the second flow meter is a mass flow meter.
In one possible design, the system further comprises at least one pressure indicating gauge for checking whether the pressure of the currently transported low water crude oil is normal.
In one possible design, the system further comprises at least one temperature indicating instrument for checking whether the temperature of the currently transported low water crude oil is normal.
In one possible design, the outer periphery of the main pipe and the outer periphery of the branch pipe have electric tracing bands and insulating layers for maintaining the temperature of the low-water crude oil.
In one possible design, the internal diameter of the branch pipe is smaller than the internal diameter of the main pipe.
In one possible design, the computer device is wirelessly connected to the first flow meter, the second flow meter, the pressure transmitter, and the temperature transmitter, respectively.
In one possible design, the computer device is connected to the first flow meter, the second flow meter, the pressure transmitter, and the temperature transmitter by wires, respectively.
In one possible design, the computer device has mathematical calculation software for fitting the net oil mass in the low water crude oil.
The embodiment of the invention obtains the volume of the low-water-content crude oil conveyed by the main pipe based on the first flowmeter arranged on the main pipe, and obtains the density of the low-water-content crude oil based on the second flowmeter arranged on the branch pipe, thereby avoiding artificial factors existing in the detection of the density of the low-water-content crude oil by manual sampling and greatly reducing the manual labor degree. Furthermore, based on the obtained volume of the low water content crude oil, the density of the low water content crude oil and other related parameters, the more accurate clean oil quality in the low water content crude oil can be calculated through computer equipment, and the automation degree of the whole low water content crude oil handover metering system is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a low water crude oil cross-over metering system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a low water content crude oil handover metering system, as shown in fig. 1, the system comprises:
a main pipe 1, the main pipe 1 being used for transporting low water crude oil;
the oil inlet and the oil outlet of the first flow meter 2 are respectively connected with the main pipe 1, and the first flow meter 2 is used for metering the volume of the low-water-content crude oil conveyed by the main pipe 1;
the oil inlet and the oil outlet of the filter 3 are respectively connected with the main pipe 1 and are positioned on one side close to the oil inlet of the first flow meter 2, and the filter 3 is used for filtering solid particles in the low-water-content crude oil;
an oil inlet and an oil outlet of the branch pipe 4 are respectively connected with the main pipe 1 and are positioned at one side close to the oil outlet of the first flow meter 2;
an oil inlet and an oil outlet of the second flowmeter 5 are respectively connected with the branch pipe 4, and the second flowmeter 5 is used for metering the density of the low-water-content crude oil;
a pressure transmitter 6, wherein the pressure transmitter 6 is connected with the branch pipe 4 and is positioned at one side close to the oil inlet of the second flowmeter 5, and the pressure transmitter 6 is used for detecting the pressure of the low-water crude oil;
the temperature transmitter 7 is connected with the main pipe 1 and is positioned at one side close to the oil outlet of the branch pipe 4, and the temperature transmitter 7 is used for detecting the temperature of the low-water-content crude oil;
a computer device 8, the computer device 8 being adapted to calculate the quality of the clean oil in the low water crude oil based on the parameters in the first flow meter 2, the second flow meter 5, the pressure transmitter 6 and the temperature transmitter 7.
The embodiment of the invention obtains the volume of the low-water-content crude oil conveyed by the main pipe 1 based on the first flow meter 2 arranged on the main pipe 1, and obtains the density of the low-water-content crude oil based on the second flow meter 5 arranged on the branch pipe 4, thereby avoiding the artificial factor existing in the detection of the density of the low-water-content crude oil by manual sampling and greatly reducing the manual labor degree. Furthermore, based on the volume of the low water content crude oil, the density of the low water content crude oil and other related parameters, the clean oil quality in the low water content crude oil can be calculated more accurately through related software in the computer device 8, and the automation degree of the whole low water content crude oil handover metering system is improved.
The following details the structure and the working principle of each part of the low water content crude oil handover metering system:
structure and working principle of (I) main pipe 1
In the embodiment of the present invention, the main pipe 1 is used for transporting low water crude oil and for connecting other structures in the low water crude oil handover metering system, that is, the main pipe 1 can support other structures. The main pipe 1 may be connected to other main lines for transporting crude oil with low water content, for example, the main pipe 1 may be fixed to the other main lines by a pipe joint or a flange. Of course, the main pipe 1 and other main pipelines for transporting crude oil with low water content can be welded together, and the embodiment of the invention is not limited herein.
In one possible design, the main pipe 1 has a high pressure resistance and corrosion resistance, and the main pipe 1 can have a suitable wall thickness according to the oil delivery pressure, wherein both the outer wall and the inner wall of the main pipe 1 can be coated with a corrosion-resistant layer. Further, the outer periphery of the main pipe 1 may have an electric tracing band and an insulation layer, which may maintain the temperature of the low-water crude oil transported in the main pipe 1 within a desired range. For example, the electric tracing band and the insulating layer may be used to maintain the temperature of the low-water crude oil transported in the main pipe 1 at 3 degrees celsius above the freezing point of the low-water crude oil. Of course, the electric tracing band and the heat insulating layer can also maintain the temperature of the crude oil with low water content in other ranges, and the periphery of the main pipe 1 can also have other structures for heat insulation, and the embodiment of the invention is not limited herein.
It should be noted that the water content of the low water crude oil conveyed by the main pipe 1 is less than or equal to 20%, that is, the ratio of the mass of water in the low water crude oil to the mass of the low water crude oil is less than or equal to 20%, wherein the low water crude oil may also be a qualified crude oil, and the water content of the qualified crude oil is less than or equal to 0.5%.
Structure and operation principle of (second) first flowmeter 2
In the embodiment of the present invention, the first flow meter 2 is used for measuring the volume of the crude oil with low water content conveyed by the main pipe 1, and the oil inlet and the oil outlet of the first flow meter 2 are respectively connected with the main pipe 1, that is, the crude oil with low water content conveyed by the main pipe 1 can completely pass through the first flow meter 2, so that the first flow meter 2 can acquire the volume of the crude oil with low water content flowing through the first flow meter 2. The oil inlet and the oil outlet of the first flow meter 2 may be fixed to the main pipe 1 through corresponding joint devices, and of course, the oil inlet and the oil outlet of the first flow meter 2 may also be fixed to the main pipe 1 through welding, which is not limited herein in the embodiments of the present invention.
In one possible design, the first flow meter 2 may be a dual rotor flow meter that may have an electronic display screen that may display in real time the volume of low water crude oil flowing through the dual rotor flow meter. Further, the first flow meter 2 may have a data transmission function, and based on the data transmission function, the first flow meter 2 may transmit data such as the measured volume of the low-water crude oil to the computer device 8 or the like. Of course, in other embodiments, the first flow meter 2 may be other flow meters as long as the volume of the low water crude oil can be measured, and the embodiment of the present invention is not limited herein.
Structure and working principle of (III) filter 3
In the present embodiment, the filter 3 is used to filter out solid particles that may be carried in the low-water crude oil transported in the main pipe 1, in order to prevent the solid particles from clogging other structures in the cross-over metering system. The oil inlet and the oil outlet of the filter 3 are respectively connected with the main pipe 1, and the filter 3 is positioned at one side close to the oil inlet of the first flow meter 2, that is, the crude oil with low water content conveyed by the main pipe 1 can firstly pass through the filter 3 for filtering and then flows through the first flow meter 2.
It should be noted that the filter 3 may be connected to the oil inlet of the first flow meter 2, and the filter 3 may be in any form as long as it can filter the low-water-content crude oil entering the first flow meter 2, and the specific position and the specific form of the filter 3 are not limited in the embodiment of the present invention.
Structure and working principle of (IV) branch pipe 4
In the present embodiment, the branch pipe 4 is used for branching the transported low-water crude oil, and the density of the low-water crude oil is detected based on the branched low-water crude oil. The two ends of the branch pipe 4 are respectively connected with the main pipe 1 and are positioned at one side close to the oil outlet of the first flow meter 2, that is, after the low-water-content crude oil conveyed by the main pipe 1 flows through the first flow meter 2, part of the low-water-content crude oil can enter the branch pipe 4 from one end of the branch pipe 4, and the rest of the low-water-content crude oil is conveyed continuously through the main pipe 1. Wherein, the crude oil with low water content entering the branch pipe 4 is finally converged into the main pipe 1 from the other end of the branch pipe 4 and is continuously transported by the main pipe 1.
In one possible design, the internal diameter of the branch pipe 4 may be smaller than the internal diameter of the main pipe 1, so that a small portion of the low-water crude oil enters the branch pipe 4 for low-water crude oil density detection, while the majority of the low-water crude oil continues to be transported through the main pipe 1, and in particular, the branch pipe 4 may be a seamless steel pipe with an internal diameter of 50 mm. Of course, the inner diameter of the branch pipe 4 may be other sizes, and the embodiment of the present invention is not limited herein.
Further, similar to the main pipe 1, the outer periphery of the branch pipe 4 may have an electric tracing band and a heat insulating layer, so as to maintain the temperature of the low-water crude oil flowing through the branch pipe 4 within a required range, and prevent the low-water crude oil from flowing poorly in a low-temperature environment.
(V) Structure and operation principle of the second flowmeter 5
In the embodiment of the present invention, the second flow meter 5 is used for measuring the density of the crude oil with low water content, the oil inlet and the oil outlet of the second flow meter 5 are respectively connected with the branch pipe 4, that is, the crude oil with low water content entering the branch pipe 4 can flow through the second flow meter 5, and the second flow meter 5 can directly detect the density of the crude oil with low water content based on the crude oil with low water content in the branch pipe 4 without human intervention. The oil inlet and the oil outlet of the second flow meter 5 may be fixed with the branch pipe 4 through corresponding joint devices, respectively, and of course, the oil inlet and the oil outlet of the second flow meter 5 may also be fixed with the branch pipe 4 through welding, which is not limited herein in the embodiments of the present invention.
In one possible design, the second flow meter 5 may be a mass flow meter, and the mass flow meter has a function device such as a laminar flow sensor, and the density of the low water crude oil flowing through the second flow meter 5 can be detected in real time, and the density of the low water crude oil detected by the second flow meter 5 can be displayed in real time through an electronic display screen. Further, the second flow meter 5 may have a data transmission function to transmit data obtained by the second flow meter 5 to the computer device 8 or the like. Of course, the second flow meter 5 may be other than the mass flow meter, as long as the density of the low water content crude oil can be measured, and the embodiment of the present invention is not limited thereto.
(VI) Structure and operating principle of pressure transmitter 6
In the embodiment of the present invention, the pressure transmitter 6 is used for detecting the pressure of the transported crude oil with low water content, so as to correct the detected pressure data in the subsequent calculation process of the absolute oil quality, and calculate the absolute oil quality under the standard pressure. The pressure transmitter 6 may be connected to the branch pipe 4 and located on the side near the oil inlet of the second flow meter 5. Specifically, the pressure transmitter 6 may be fixed to the branch pipe 4 through a relevant joint, and may be fixed to the branch pipe 4 through any other way as long as the pressure transmitter 6 can detect the pressure of the low-water crude oil before entering the second flowmeter 5, and the embodiment of the present invention is not limited herein.
In one possible design, the pressure transmitter 6 may have an electronic display screen that can display sensed pressure data in real time. In addition, the pressure transmitter 6 may have a data transmission function to transmit the detected pressure data to the computer device 8 or the like.
It should be noted that, the pressure transmitter 6 is disposed on one side close to the oil inlet of the second flowmeter 5, so that the pressure data detected by the pressure transmitter 6 corresponds to the density data detected by the second flowmeter 5, and further, the metering result of the low water content crude oil obtained based on the pressure data and the density data is more accurate, thereby avoiding the influence on the final metering result caused by the pressure difference of the low water content crude oil in different pipeline sections.
In addition, the low-water-content crude oil handover metering system can further comprise at least one pressure indicating instrument 9, wherein each pressure indicating instrument 9 can be connected with the main pipe 1 or the branch pipe 4, so that a worker can conveniently check the pressure of the low-water-content crude oil conveyed by each pipeline section and timely overhaul equipment corresponding to the pipeline section with abnormal pressure. For example, a first pressure indicating instrument may be disposed on the main pipe 1 near the oil inlet of the filter 3, and a second pressure indicating instrument may be disposed on the main pipe 1 near the oil outlet of the filter 3, when the difference between the display data of the first pressure indicating instrument and the display data of the second pressure indicating instrument is large, the filter 3 may be blocked, and a worker may repair the filter 3 in time.
Of course, other positions of the main pipe 1 or the branch pipe 4 may also have the pressure indicating gauge 9, and the specific position and the specific number of the pressure indicating gauge 9 are not limited in the embodiment of the present invention.
(VII) Structure and operating principle of temperature transmitter 7
In the embodiment of the present invention, the temperature transmitter 7 is used for detecting the temperature of the transported crude oil with low water content, so as to correct the detected temperature data in the subsequent calculation process of the oil quality, and calculate the oil quality at the standard temperature. The temperature transmitter 7 may be connected to the main pipe 1 and located at a side close to the oil outlet of the branch pipe 4, specifically, the temperature transmitter 7 may be fixed to the main pipe 1 through a relevant joint, and of course, may also be fixed to the main pipe 1 in other manners as long as the temperature transmitter 7 can detect the temperature of the low-water crude oil at a corresponding position in the main pipe 1, which is not limited in the embodiment of the present invention.
In one possible design, the temperature transmitter 7 may have an electronic display screen that can display sensed temperature data in real time. In addition, the temperature transmitter 7 may also have a data transmission function to transmit the detected temperature data to the computer device 8 or the like.
In addition, the low-water-content crude oil handover metering system can further comprise at least one temperature indicating instrument 10, wherein each temperature indicating instrument 10 can be connected with the main pipe 1 or the branch pipe 4, so that a worker can conveniently check the temperature of the low-water-content crude oil conveyed by each pipeline section and timely overhaul equipment corresponding to the pipeline section with abnormal temperature. For example, a temperature indicating instrument 10 can be arranged on the main pipe 1 close to the oil outlet of the first flow meter, a worker can timely view the temperature indicating instrument 10, and when the display data of the temperature indicating instrument 10 is lower than or exceeds a normal value, the worker can timely overhaul the related equipment.
Of course, other positions of the main pipe 1 or the branch pipe 4 may have the temperature indicating instrument 10, and the specific position and the specific number of the temperature indicating instrument 10 are not limited in the embodiment of the present invention.
(VIII) Structure and operating principle of computer device 8
In the embodiment of the present invention, the computer device 8 is configured to receive data detected by the first flow meter 2, the second flow meter 5, the pressure transmitter 6, and the temperature transmitter 7, and calculate the net oil quality in the low-water crude oil conveyed through the main pipe 1 based on the received data, wherein the computer device 8 may be a desktop computer device, a portable computer device, or other computer devices as long as the data can be received and processed, and the embodiment of the present invention is not limited herein.
In one possible design, the computer device 8 may be wirelessly connected to the first flow meter 2, the second flow meter 5, the pressure transmitter 6 and the temperature transmitter 7 as described above. Specifically, the first flow meter 2, the second flow meter 5, the pressure transmitter 6, and the temperature transmitter 7 can transmit the detected data to the computer device 8 having a wireless receiving function through a wireless data transmission function, respectively. Of course, the computer device 8 may also be connected to the first flow meter 2, the second flow meter 5, the pressure transmitter 6 and the temperature transmitter 7 by wires, and the embodiment of the present invention is not limited herein as long as the computer device 8 can acquire data detected by the first flow meter 2, the second flow meter 5, the pressure transmitter 6 and the temperature transmitter 7.
In addition, the computer device 8 has mathematical calculation software for fitting the absolute oil quality of the crude oil with low water content transported through the main pipe 1 based on the above-mentioned detected volume data, density data, pressure data, temperature data, etc.
In the actual measurement process of the handover, the volume of the low-water-content crude oil under the working condition can be obtained based on the first flowmeter 2, and the volume of the low-water-content crude oil under the standard condition can be obtained by consulting GB/T1885 petroleum meter; and then, sequentially measuring the pressure, the density and the temperature of the low water-containing crude oil under the working condition by using a pressure transmitter 6, a second flowmeter 5 and a temperature transmitter 7, looking up the density of the pure crude oil and the density of water under different pressures and different temperatures under the working condition according to a CRC Handbook of Chemistry and Physics and a GB/T1885 petroleum meter, and obtaining the water content of the low water-containing crude oil according to the density of the low water-containing crude oil, the density of the pure crude oil and the density of the water. Further, the computer device 8 can calculate the absolute quality of the crude oil with low water content based on the volume of the crude oil with low water content, the water content of the crude oil with low water content, the density of the pure crude oil, and the like.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
The above description is for the purpose of promoting an understanding of the principles of the invention and is not intended to limit the invention to the particular embodiments disclosed, but rather the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. A low water crude oil cross-over metering system, comprising:
a main pipe (1), the main pipe (1) being used for transporting low water crude oil;
the oil inlet and the oil outlet of the first flow meter (2) are respectively connected with the main pipe (1), and the first flow meter (2) is used for metering the volume of the low-water-content crude oil conveyed by the main pipe (1);
the oil inlet and the oil outlet of the filter (3) are respectively connected with the main pipe (1) and are positioned on one side close to the oil inlet of the first flow meter (2), and the filter (3) is used for filtering out solid particles in the low-water-content crude oil;
the oil inlet and the oil outlet of the branch pipe (4) are respectively connected with the main pipe (1) and are positioned on one side close to the oil outlet of the first flowmeter (2);
the oil inlet and the oil outlet of the second flowmeter (5) are respectively connected with the branch pipe (4), and the second flowmeter (5) is used for metering the density of the low water content crude oil;
the pressure transmitter (6) is connected with the branch pipe (4) and is positioned on one side close to an oil inlet of the second flowmeter (5), and the pressure transmitter (6) is used for detecting the pressure of the low-water-content crude oil;
the temperature transmitter (7) is connected with the main pipe (1) and is positioned on one side close to the oil outlet of the branch pipe (4), and the temperature transmitter (7) is used for detecting the temperature of the low water content crude oil;
a computer device (8), the computer device (8) for calculating the net oil quality in the low water crude based on parameters in the first flow meter (2), the second flow meter (5), the pressure transmitter (6) and the temperature transmitter (7).
2. The system of claim 1, wherein the first flow meter (2) is a dual rotor flow meter.
3. A system according to claim 2, characterized in that the second flow meter (5) is a mass flow meter.
4. The system according to claim 1, characterized in that the system further comprises at least one pressure indicating gauge (9), the at least one pressure indicating gauge (9) being used for checking whether the pressure of the currently transported low water crude oil is normal.
5. The system according to claim 4, characterized in that the system further comprises at least one temperature indicating instrument (10), the at least one temperature indicating instrument (10) being used for checking whether the temperature of the currently transported sour crude is normal.
6. The system according to claim 1, characterized in that the periphery of the main pipe (1) and the periphery of the branch pipes (4) have electric tracing bands and insulating layers for maintaining the temperature of the low water crude oil.
7. System according to claim 1, characterized in that the branch pipe (4) has a smaller inner diameter than the main pipe (1).
8. The system according to claim 1, characterized in that the computer device (8) is connected wirelessly with the first flow meter (2), the second flow meter (5), the pressure transmitter (6) and the temperature transmitter (7), respectively.
9. The system according to claim 1, characterized in that said computer device (8) is connected by wire with said first flow meter (2), said second flow meter (5), said pressure transmitter (6) and said temperature transmitter (7), respectively.
10. The system according to claim 1, characterized in that the computer device (8) has mathematical calculation software for fitting the net oil quality in the low water crude oil.
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| CN101241121A (en) * | 2007-02-05 | 2008-08-13 | 常荫铎 | Timing method three phase metering separator |
| US20080282606A1 (en) * | 2007-04-16 | 2008-11-20 | Plaza John P | System and process for producing biodiesel |
| CN101525995B (en) * | 2009-04-22 | 2012-05-09 | 西安三林能源科技工程有限公司 | Gas and liquid multiphase quantitative measuring device and method thereof |
| CN101666770A (en) * | 2009-09-18 | 2010-03-10 | 中国石油大学(华东) | Device and method for measuring crude oil with low air void |
| CN102096387A (en) * | 2010-12-03 | 2011-06-15 | 上海高桥捷派克石化工程建设有限公司 | Automatic control system used for crude oil automatic online sampler |
| CN102133982B (en) * | 2011-01-27 | 2012-09-26 | 陆春红 | Full-function metering and alarming system of oil tank |
| CN103291269B (en) * | 2013-05-20 | 2016-03-09 | 江苏大江石油科技有限公司 | diesel type composite heat carrier generator system |
| CN103674147A (en) * | 2013-12-20 | 2014-03-26 | 中国计量学院 | On-line measuring device and method for double-flowmeter crude oil water content |
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