摘要
Abstract
The tight gas reservoir of the Pinghu Formation in the Xihu Sag of the Donghai Basin belongs to a typical structural-lithologic composite gas reservoir.Aiming at the problems existing in T gas field of Xihu Sag,such as complex structural morphology,great difficulty in mining engineering,long development period and poor current production effect,through technical means like joint analysis of well-seismic data,fine structural interpretation and seismic reservoir inversion,and by integrating multidisciplinary data of seismic,geological and logging,it is clarified that the effective reservoirs in the study area show low-permeability and tight characteristics,and the characterization of"sweet spot"reservoirs faces high difficulty.Through in-depth analysis of the development potential of the gas field,the study established screening criteria for favorable traps,comprehensively predicted the distribution areas of favorable sweet spots in the tight gas res-ervoir of the eastern fault block in T gas field,and optimized the target deployment of well locations.关键词
西湖凹陷/平湖组/致密气藏/水平井/井位优选Key words
Xihu Sag/Pinghu Formation/tight gas reservoir/horizontal well/well location optimization分类
天文与地球科学
