Online continuous detection method and system of water content in wellhead output liquid

Abstract

The invention discloses an online continuous detection system of a water content in wellhead output liquid. The system is a real-time dynamic processing system of oil well output liquid, which comprises a signal collector sensor based on the Internet of Things and deployed at the wellhead, a high-speed data collection device and an analysis system deployed on a cloud platform, wherein the signal collector sensor realizes real-time data collection; the high-speed data collection device transmits the data collected by the signal collector sensor to the analysis system in real time; and the analysis system generates result flow in real time after receiving the data. Corresponding to the above system, the invention further provides an online continuous detection method of the water content inthe wellhead output liquid. By adopting the online continuous detection method and system disclosed by the invention, the online continuous detection of the wellhead output liquid is realized, and theproblems of poor adaptability, low detection accuracy, calibration difficulty and the like in the one-well-one-meter analysis mode of the existing water content analysis device are changed.

Description

technical field [0001] The invention relates to the technical field of oilfield automation equipment, in particular to an online continuous detection method and system for the water content of wellhead output fluid. Background technique [0002] In the production process of oil wells, the water content of the oil well output fluid is an important indicator. At present, the main method is manual sampling and testing, which takes up a lot of time and labor for the on-site workers. In addition, due to the low sampling frequency, the output fluid cannot be accurately characterized. Water cut: At present, there are experimental products that can automatically measure water cut at the wellhead of oil wells, but the products in use need to be calibrated according to the production conditions before they can be applied, and online measurement is a transient, nonlinear, multi-parameter complex process , the flow pattern is complex and changeable, the interaction between phases is str...

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Problems solved by technology

[0002] In the production process of oil wells, the water content of the oil well output fluid is an important indicator. At present, the main method is manual sampling and testing, which takes up a lot of time and labor for the on-site workers. In addition, due to the low sampling frequency, the output fluid cannot be accurately characterized. Water cut: At present, there are experimental products that can automatically measure water cut at the wellhead of oil wells, but the products in use need to be calibrated according to the production conditions before they can be applied, and online measurement is a transient, nonlinear, multi-parameter complex process , the flow pattern is complex and changeable, the interaction between phases is strong, and the mathematical description is strong, so the adaptability of the products in use is very poor, and the measurement accuracy is far from meeting the requirements

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