An unimpeded oil-gas-water multiphase flow parameter oil production combination logging tool

Abstract

The invention discloses an unobstructed oil-gas-water multiphase flow parameter petroleum production combined well logging instrument. Including an integrated measurement sensor and a control system; the integrated measurement sensor includes a measurement pipeline, a capacitance measurement module, an electromagnetic correlation flow measurement module and an impedance measurement module; the electromagnetic correlation flow measurement module is arranged in the insulation area of ​​the measurement pipeline The impedance measurement module is arranged in the inner insulating layer of the capacitance measurement module, and the inner surface of the impedance measurement module is exposed in the measurement pipeline; the upper and lower ends of the capacitance measurement module are connected to the insulation area; the control The system provides circuits and measurement methods, and controls the corresponding modules to measure and calculate the water phase flow and oil phase flow according to the internal fluid state of the integrated sensor. The invention realizes the accurate real-time measurement of the oil-water two-phase flow parameters (flow rate and phase separation holdup) at the wellhead, and has the characteristics of compact structure, low cost, no moving parts, no obstructed flow, high reliability and the like.

Description

technical field [0001] The invention relates to the technical field of oil production well monitoring, in particular to an unobstructed oil-gas-water multiphase flow parameter oil production combined well logging instrument. Background technique [0002] The measurement of oil-gas-water multiphase flow parameters has always been the focus and difficulty of research in the fields of petroleum, textile, chemical industry, and water conservancy. Digital oilfield construction is the main trend in the development of oilfield surface intelligent monitoring in my country. Therefore, the measurement of oil-gas-water multiphase flow parameters at the wellhead has become an important development direction of oilfield intelligent monitoring. [0003] The parameters of oil-gas-water multiphase flow mainly include fluid flow rate, phase holdup, pressure and temperature, etc. The real-time and accurate measurement of oil-gas-water multiphase flow rate and phase holdup is the focus and dif...

AI Technical Summary

Problems solved by technology

[0005] In order to realize the comprehensive measurement of fluid parameters of oil-water two-phase flow after gas-liquid separation, combining various sensors is one of the methods commonly used by those skilled in the art. Structural connection and electrical connection, this method is simple in technology, easy to implement, and strong in operability, but has complex structure, high failure rate, difficult maintenance, high cost, and does not realize the true multi-sensor integrated fusion design in essence

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