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Oil well oil-gas-water three-phase automatic metering system

An automatic metering, oil, gas and water technology, applied in measurement, wellbore/well components, earthwork drilling and production, etc., can solve problems such as long time-consuming and complicated measurement process

Inactive Publication Date: 2014-07-16
徐树臣
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The measurement process is complex and time-consuming

Method used

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  • Oil well oil-gas-water three-phase automatic metering system
  • Oil well oil-gas-water three-phase automatic metering system
  • Oil well oil-gas-water three-phase automatic metering system

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Embodiment Construction

[0020] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0021] Such as figure 1 as shown, figure 1 It is a flowchart of a specific embodiment of the oil well oil, gas and water three-phase automatic metering system of the present invention. The three-phase automatic metering system for oil, gas and water in an oil well consists of a capacitance tester 1, a capacitance test tube 2, a first differential pressure sensor 3, a flow resistance differential pressure test tube 4, a temperature sensor 5, a pressure sensor 6, a volume flow meter 7, and a poor quality sensor. The pressure test tube 8 and the second differential pressure sensor 9 are composed.

[0022] The capacitance test tube 2 is connected to the liquid production pipeline of the oil well to receive the three-phase fluid of oil, gas and wate...

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Abstract

The invention provides an oil well oil-gas-water three-phase automatic metering system. A capacitance test tube is connected to a fluid producing pipeline of an oil well and used to receive oil-gas-water fluid. A capacitance tester measures the ratio of the water, oil and gas of the oil-gas-water fluid transiently flowing through the capacitance test tube, according to a dielectric constant difference between the water and oil-gas. According to a viscosity difference between the oil and oil-gas, a first differential pressure sensor measures the ratio of the water, oil and gas of the oil-gas-water fluid transiently flowing through a flow resistance differential pressure test tube. According to a mass difference between the gas and oil-water, a second differential pressure sensor measures the ratio of the gas, water and water of the oil-gas-water fluid transiently flowing through a mass differential pressure test tube. The oil well oil-gas-water three-phase automatic metering system has the advantages that oil, gas and water are automatically metered for the oil well, metering level is increased, labor intensity is reduced, and automatic management of the oil well is achieved.

Description

technical field [0001] The invention relates to the technical field of oilfield development, in particular to an oil-gas-water three-phase automatic metering system for oil wells. Background technique [0002] In the process of oilfield exploitation, the output of oil production well includes oil, gas and water three-phase fluid. Due to the needs of scientific research and production, it is necessary to know the exact volume of each fluid every day, which requires a method to accurately measure it. come out. The same requirement applies to well stations consisting of several wells. [0003] The metering method of a conventional single well or well group station is to install a gas-liquid separator, inject a period of fluid into the separator in time, measure the mixed volume of gas and oil and water through gravity separation, and then take samples from the oil well The method is used to measure the percentage of water content in oil and calculate the amount of oil and wat...

Claims

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Application Information

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IPC IPC(8): E21B47/00
Inventor 吴光焕徐树臣张保卫徐则铭
Owner 徐树臣
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