西南石油大学学报（自然科学版）2025，Vol.47Issue(4)：96-112,17.DOI:10.11885/j.issn.1674-5086.2023.09.08.02
压裂水平井多井干扰数值试井分析
Numerical Well Testing Analysis of Multi-well Interference from Multi-fractured Horizontal Wells
摘要
Abstract
Interwell interference cannot be ignored especially in tight and unconventional oil and gas reservoirs since adjacent wells may be communicated through natural fractures or even hydraulic fractures due to tight well spacing.Currently,the well testing models are focused on an individual well with simple fractures.It lacks the well testing model considering multiple wells with complex fracture networks.It is necessary to develop the numerical well testing method of multi-well interference,and analyze the impact of adjacent wells and fracture network parameters on the pressure transient behavior of the observed wells.Thus,this work proposes a numerical well test model of multiple fractured horizontal wells with complex fracture networks.The accuracy and advantages of the proposed model are validated.The effect of well interference,adjacent well's production,non-uniform fracture aperture,fracture networks,fracture conductivity of hydraulic and natural fractures on the pressure transient behavior are analyzed.Well-developed natural fractures lead to better interwell connectivity,and the adjacent wells influence the fracture linear flow,fracture radial flow,elliptical flow,and final radial flow period.When the natural fractures are not well developed,the adjacent wells affect the middle and late pressure behavior of the observation well.The developed multi-well numerical well testing model in this work considers the complex fracture networks,irregular fractures,nonuniform gas production profile,and interwell interference,which can characterize early pressure behavior and pressure differences among matrix,fracture and other grids more clearly.It enriches the numerical well testing analysis method of tight and unconventional oil and gas reservoirs.关键词
致密油气藏/压裂水平井/复杂缝网/多井干扰/数值试井/压力特征分析Key words
tight oil and gas reservoirs/multi-fractured horizontal wells/complex fracture networks/multi-well interference/numerical well testing/pressure behavior analysis分类
能源科技引用本文复制引用
何佑伟,陈樟池,汤勇,赵国庆,吴柯宇..压裂水平井多井干扰数值试井分析[J].西南石油大学学报（自然科学版）,2025,47(4):96-112,17.基金项目
国家自然科学基金青年基金(52004238) （52004238）
