H Sandstone Reservoir Development Effect Evaluation And Countermeasure Research

Put into scale development from 1997 H sandstone reservoir,with the deepening of the oil field exploration,development,block water cut increase and production decline problem increasingly prominent,therefore,the H reservoir development effect and effectively evaluate quantitatively,and put forward corresponding countermeasures to its development and status quo,screening potential to tap potential blocks,have very important significance for ensuring oilfield long-term production.Based on the existing reservoir data,this paper analyzes the basic geological characteristics and production dynamic data of the reservoir,and has a clear understanding of the reservoir.On this basis,the following work is completed:(1)based on the existing dynamic and static data in the work area,the basic geological characteristics of the reservoir are analyzed,and the structural characteristics(including microstructural characteristics),stratigraphic characteristics,reservoir temperature and pressure system,fluid properties and the distribution of oil,gas and water are summarized;(2)make use of core,well logging,dynamic monitoring and other types of data to understand the reservoir lithological characteristics,physical characteristics and heterogeneous characteristics.(3)using the production data of oil and water wells and combining with the dynamic monitoring data of pressure,water absorption and liquid production,etc.,the research on the characteristics analysis of oil well exploitation,natural energy evaluation of strata,water injection effect evaluation and stimulation effect of various measures is carried out;(4)through the evaluation of the corresponding relationship between the current waterflood development mode,development layer and injection-production,determine the reasonable layer system,well pattern,well spacing and waterflood development mode;(5)through comparison of the same type of reservoir development practice,the selection of reasonable development mode,optimization of water injection mode,determination of reasonable injection-production well ratio,water injection timing,etc.Through the above work,we have a clear understanding of the development effect of reservoir H as a whole,and adjust its unreasonable and bad effects.