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一、实施背景西南油气田公司从事四川盆地天然气勘探开发半个多世纪,勘探面积16.8万平方公里,占四川盆地18万平方公里的90%,先后发现了20多套产层,100多个气田,目前已形成天然气年生产能力150亿立方米。但是随着勘探的快速发展,勘探程度的不断提高,勘探对象日趋复杂,已由简单的构造油气藏、复合圈闭气藏转变为复杂山前带、高陡构
First, the implementation background Southwest Oil and Gas Company engaged in exploration and development of natural gas in the Sichuan Basin more than half a century, exploration area of 168,000 square kilometers, accounting for 90% of the 180,000 square km in Sichuan Basin, has discovered more than 20 sets of production layers, more than 100 gas fields, At present, the annual output of natural gas has reached 15 billion cubic meters. However, with the rapid development of exploration and the continuous improvement of exploration, the object of exploration has become more and more complex. It has been transformed from simple structural reservoirs and composite trap gas reservoirs to complex piedmont zones,