The Flow Simulation And Sensing Technology Of Low Liquid Oil-water Two-phase Flow In Horizontal Well

Production fluid profile logging technology is one of the important technology of horizontal well logging development, it plays an important role in the p roduction of fluid profile logging in horizontal. The productiong fluid profile logging needs to provide the related basis in guiding the fracturing and water plugging as well as the optimized injectiong production plan and other asoects of the operations. The horizontal well production fluid profile logging data is more important and valuable than the vertical well. In recent years, with the continuous expansion of the scale of horizontal wells, related problems appear constantly, the production fluid profile logging data of incomplete for the influence of the horizontal well development is increasingly prominent.This topic researches the level of modular logging system by using the mature oil delivery process in transmission, can accurately reach the ta rget layer, avoids the difficult problems that tractor crawling hard in a sand producing excessive well. The flow measurement is based on the combination of turbine flowmeter and electromagnetic flowmeter, electromagnetic flowmeter effectively compensated for the effects of sand return phenomenon of turbine flowmeter. The measurement of the moisture content is the combination of the impedance moisture content meter and the tube shaped capacitance moisture meter, The impedance type moisture content meter can not constitute a continuous phase when the water phase is low, the water phase will lose response, combined with tube shaped capacitance moisture meter measurement can effectively expand the measurement range.According to the research contents, three simulation models of different sizes are designed and built, and the model was reasonable meshing. The model was established by fluent simulation software at conditions of different structure and different initial conditions and different flow rate and water rate of oil-water two-phase flow in the catchment conditions simulation. Through the comparison of the simulation results analysis, it is concluded that the fluid flow rate, moisture content and the tube length in the flow state, the interface height and the time required to reach steady state, the influence of low yield for the modular fluid horizontal well production logging technology to provide data support and technical guidance.