Abstract
Multiphase flow state is complex in shale gas horizontal well. Using foreign array probe tools to accurately monitor fluid production location and flowrate is very important, but at present domestic flow imaging and flow profile interpretation technology is still immature. In this paper, based on analysis the structure and characteristics of Schlumberger FSI (Flow Scanning Imager), firstly, the multiphase flow in shale gas horizontal wells was numerically simulated by Fluent software, and the velocity and pressure distributions were obtained. Compared with the typical horizontal well gas-water two-phase flow pattern classification, the two methods are in good agreement. Secondly, using the methods of gridding and simple inverse distance interpolation, the calculation of holdup and average velocity are carried out. After that, considering the deviation and flow pattern, the calculation method of key parameters was deduced such as the apparent velocity, phase distribution coefficient and drift velocity. What’s more, Flow profile interpretation model is established in horizontal air-water two-phase. In the end, the field test data show that three-dimensional flow imaging effect and interpretation precision is good for stratified flow.
