1984年在塔里木盆地部署的沙参2井实现了中国古生代海相油气田首次重大突破，成为我国油气勘探史上的重要里程碑，之后又发现多个古生代油气田及塔河大油田，并创立古生代海相成油理论。这一过程充分体现了自主创新的过程，对其进行较系统的总结，对当前和今后古生界油气勘探有重要指导意义。

In 1984, the Shachan-2 well, located in Tarim Basin and with a large amount of oil and gas flow, was discovered. It set forth the significant breakthrough as an important milestone in prospecting for oil present in paleozoic marine facies in China. After the Shachan-2 well discovery, many oil fields, including the Tahe Oil-gas Field were discovered in Tarim Basin and a new oil-gas theory of the paleozoic marine facies was advanced. These processes reflect independent innovation in the exploration of paleozoic marine facies oil-gas field. It is of great help to further oil-gas exploration in the paleozoic marine facies field.