三塘湖盆地油气勘探历程与启示OA

The oil and gas exploration in the Santanghu Basin began in the 1950s,and from 1950s to 1980s,it mainly focused on surface geological surveys and local exploration.Large-scale oil and gas ex-ploration began in 1990s and achieved good results.Looking back on 60 years of oil and gas exploration practice,the theory of petroleum geology,exploration fields and exploration achievements in Santanghu Ba-sin are reviewed.Based on the analysis of drilling,seismic,reserves,and production data,the exploration process is divided into four stages:geological survey,sandstone reservoir exploration,volcanic reservoir ex-ploration,and tight oil exploration.Taking exploration ideas,scientific and technological innovation,explo-ration technology and major exploration achievements in each stage as the main line,the exploration enlight-enment as well as the achievements and understandings that have big influence on exploration are summa-rized.And then the geological theory and exploration and development technology of Jurassic low permeability and low pressure sandstone reservoir,volcanic rock reservoir and tuff tight reservoir were formed,which pro-moted the continuous breakthrough of exploration in Santanghu Basin,and provided guidance in the next step.