Production simulation and prediction of fractured horizontal well with complex fracture network in shale gas reservoir based on unstructured grid

Frontiers in Earth Science

Earth Science

Keren Wang¹  Huiyan Zhao²  Cui Jing²  Hongsha Xiao²  Man Chen² 

[1] Development Division of Southwest Oil & Gas Field Company, Chengdu, Sichuan, China;Sichuan Changning Natural Gas Development Co., Ltd., Chengdu, Sichuan, China;

关键词: shale gas reservoir;    complex fracture network;    fractured horizontal well;    production prediction;    numerical simulation;   

DOI  :  10.3389/feart.2023.1257219

 received in 2023-07-12, accepted in 2023-08-21,  发布年份 2023

来源: Frontiers

【 摘 要 】

In order to accurately simulate the productivity variation characteristics of fractured wells with complex fracture network in shale gas reservoir, based on the multiple migration mechanism of shale gas, the micro-seismic data and discrete fracture model were used to characterize the fracture geometry and complex boundary characteristics, and the comprehensive seepage mathematical model of fractured wells with complex fracture network was established based on the dual porosity-discrete fracture model, and the numerical solution was carried out by combining the unstructured grid and the control volume finite element method. The sensitivity analysis of the influence of key parameters such as fracture conductivity, physical property difference in composite area and Langmuir volume on the production performance of fractured horizontal wells is carried out. This study provides theoretical methods and calculation tools for accurate prediction of productivity change and optimization of production system of fractured horizontal wells with complex fracture network in shale gas reservoirs.

【 授权许可】

Unknown   
Copyright © 2023 Xiao, Chen, Jing, Zhao and Wang.