四川盆地中国石化探区油气勘探历程与启示

Petroleum Exploration History and Enlightenment in Sichuan Basin:A Case Study on Sinopec Exploration Areas

在系统梳理四川盆地中国石化探区石油地质理论、勘探成果的基础上,通过对四川盆地勘探历程回顾,将其勘探历程划分为构造油气藏勘探(1953—2000年)、岩性气藏勘探(2000—2010年)、常规与非常规油气藏勘探(2010年至今)3个勘探阶段。优选近20年来中国石化在四川盆地最具有代表性的普光气田、元坝气田和涪陵气田3个大气田,通过梳理其早期勘探面临的主要问题、理论认识创新、勘探思路转变、勘探发现与后续部署的系统论述,以期为其他盆地或地区勘探工作提供借鉴。

After systematically analyzing the petroleum geological theory and exploration results of the Sinopec exploration areas in the Si⁃chuan basin,we divide the exploration history of the Sichuan basin into three stages:exploration for structural oil and gas reservoirs(1953-2000),exploration for lithologic gas reservoirs(2000-2010),and exploration for both conventional and unconventional oil and gas reser⁃voirs(from 2010 to present).Taking Puguang,Yuanba and Fuling gas fields as cases,which are three most representative large gas fields discovered by Sinopec in the Sichuan basin in recent two decades,we analyze the problems arising in the early exploration stage,summa⁃rize the theoretical innovations,changes of idea,exploration discoveries and follow⁃up plans.Our findings can be a reference for exploration in other areas or basins.