The study focuses on the well control scale of the Upper Paleozoic tight sandstone gas reservoir in Yan'an Gas Field
Yan'an gasfield has the characteristics of complex geological conditions,poor reservoir physical properties,strong heterogeneity,small single well control range,low reserve production degree,and difficult development.As the earliest development area,after continuous development since 2012,well production and pressure decline rapidly in Yan-145-yanqi-2-yan-128 block.In order to extend the stable production period of the gas field as far as possible and achieve the purpose of economic and efficient development,the gas well productivity and pressure changes are determined Development trends such as regularity,dynamic reserves,control scale which are very important for the development of Yan'an gasfield.In this paper,based on the production dynamic data,combined with a variety of gas reservoir engineering methods,a comprehensive and in-depth analysis of well control scale in the study area of Yan'an gas field is carried out.On this basis,comprehensive suggestions are made for the next development adjustment mode of the gasfield.
Tight sandstone gasDynamic reservesDrainage areaWell control scale
NETL
NSTL
万方数据
