Natural gas flow meter scale applied case in changqing oilfield

Abstract: the gas flow meter scale applied case in changqing oilfield information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Traffic is a very important parameter in the process of industrial production, in the process of oil and gas field development, flow measurement throughout the whole production process, any link is inseparable from the flow measurement. Flow measurement is an important basis for economic accounting, flow measurement accuracy. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale gas flowmeter applied case in changqing oilfield article details. Traffic is a very important parameter in the process of industrial production, in the process of oil and gas field development, flow measurement throughout the whole production process, any link is inseparable from the flow measurement. Flow measurement is an important basis for economic accounting, flow measurement is accurate and reliable guarantee enterprise zui better benefits and ensure normal production and high efficiency are the important means. Flow measurement, however, is an extremely complex technology and its measurement precision is influenced by many factors, such as dielectric properties, installation conditions, operation conditions, the flow characteristics and the change of environment. , therefore, must establish a unified verification flow measuring accuracy of the method, to ensure that the flow meter meets the demand of production process, ensure equal trade. Changqing oil field gas flow measurement using orifice meter, intelligent precession flowmeter, turbine flowmeter, ultrasonic flowmeter, including internal measurement is given priority to with orifice flowmeter, transmission trade measurement basic using multichannel ultrasonic gas flowmeter. Changqing oilfield company gas metering station is responsible for the gas flow meter verification work, the orifice meter verification used geometric verification ( Check) Method; Intelligent precession flowmeter with laboratory offline verification flow test device, using low pressure gas and air as medium, pressure test; Ultrasound and offline verification inspection form will be used on turbine flowmeter. With the continuous development of actual flow calibration technology, changqing oil field gradually establish a perfect gas solid flow verification system, improve the reliability and credibility of the measurement system. Changqing oilfield in 2004 for the first time introduced the mobile online real flow test device, built in 2008 and the stationary online real flow calibration system, make the changqing oil field gas metering system has realized the online flow verification and calibration. 1 mobile online real flow prover application 1. 1 application background along with the continuous expansion of changqing gas field production, the production process flow measuring instrument and a growing number of scattered due to the gas station, so you need a mobile device. At present due to a large number of applications of orifice flowmeter are susceptible to install pipe line is not standard, the actual gas flow characteristics, improper pressure piping and orifice plate stained aspects of influence, low measurement precision, so need to use portable flow prover to update online. 1. 2 standard table type gas turbine meter has high measurement precision, stable performance, less influence factors, characteristics such as wide range than; Multichannel gas ultrasonic flowmeter with high accuracy and wide applicable traffic, no wear, no moving parts, no pressure loss, low maintenance, etc. So choose 0. Level 5 high-precision gas ultrasonic flowmeter as the comparison table, choose 0. Level 2 gas turbine flow meter as a standard table. 1. 3 test process and characteristics of the ( See figure 1) Figure 1 verification process verification methods for the double standard table series, two standard table shall be the working principle of the different instrument. Design DN250mm intake pipe road all the way, installation of gas ultrasonic flowmeter; Two lines of gas pipeline design, according to the changqing gas field in the case of using natural gas flow metering instrument, all the way to DN300mm, one for the DN100mm, and the installation of gas turbine flow meter as a standard table, table after the installation of electric control valve. The characteristics of the test way is: ( 1) Change the original design manifold T connection to bend connection. （ 2) In the table top 10 times the diameter of the installation plate flow regulator; Ultrasonic flowmeter set 20 times before long straight pipe diameter, turbine flowmeter set 15 times before long straight pipe diameter. （ 3) Gas pipeline table after install flow control valve, inlet pipe road table in line after all composition analyzer. （ 4) Skid integration, the vehicle calibration ( Colorado engineering laboratory CEESI issue of real flow verification test files) 。 1. 4 technical indicators: total uncertainty built on a complete set of equipment does not do any correction & le; 0. The revised 6%, the calibration & le; 0. 5%. Working condition of flow range: 50-5000 m3 / h. Design pressure: 6. 3MPa； Pressure of work: 4. 0 to 6. 0MPa。 A complete set of pressure loss of the device: no greater than 4% of the working pressure. Figure 2 prover overall diagram 3 fixed verification process verification in parallel design specifications for 12, DN250 and DN200, DN150mm inspection table, including DN300mm piping installation fixed verification ultrasonic flowmeter.

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