Horizontal well multiphase fluid measurement device

Abstract

The invention relates to a horizontal well multiphase fluid measurement device, which includes a downhole visual imaging tester for measuring the production profile of downhole fluid, and a universal adapter for rotating the downhole visual imaging tester; The adapter is connected, and there is a weak point inside; the optical signal adapter is used to convert the received electrical signal into an optical signal and transmit it through the optical fiber; the electronic pressure gauge is set under the optical signal adapter to monitor the well. Underflow pressure, and transmit the monitored data to the optical signal adapter; the distributed optical fiber temperature sensor is used to measure the temperature of the wellbore and transmit the measured temperature to the optical signal adapter; the optical fiber connector is connected to the optical signal adapter; the coiled tubing connector and central control unit. The central control unit calculates the injection and production parameters through the flow rate, water holdup, and gas holdup to determine the water injection parameters of oil, so as to improve the efficiency of water injection, thereby improving the efficiency of oil extraction.

Description

technical field [0001] The invention relates to the technical field of petroleum detection, in particular to a multiphase fluid measurement device for horizontal wells. Background technique [0002] Large-scale volume fracturing of horizontal wells with long horizontal sections is the most effective development method for low-permeability and ultra-low-permeability reservoirs such as tight oil and shale oil. The geological development and fracturing parameters of each fracturing section of a horizontal well are different, resulting in large differences in productivity of each fracturing section. In order to further optimize the fracturing process of horizontal wells and guide production, it is necessary to monitor the production profile of horizontal wells. At the same time, due to the complexity of the wellbore structure and completion method of the horizontal well, the flow pattern in the horizontal well is complex and changeable, and the production profile monitoring is ...

AI Technical Summary

Problems solved by technology

[0004] In summary, there is still a lack of a multiphase fluid measurement device for horizontal wells in the prior art that can measure flow velocity, water holdup, and gas holdup at the same time, and there is still a lack of a device that can measure the flow rate, water holdup, and gas holdup according to the flow rate, water holdup, and gas holdup. The water volume, water injection speed and water injection time can be adjusted differently, and the measuring device can improve the oil recovery efficiency while improving the monitoring ability of the device

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