It is the research on lithology and facies of volcanic reservoirs in Qingshen gas field of north Songliao basion.
这是松辽北部北部深深气田火山岩的岩性和相研究。
2
The volcanics can be divided into three lithofacies: volcanic explosive facies, effusive facies and volcano-sedimentary facies.
火山岩可划分出三个岩相带：火山爆发相、火山溢流相和火山沉积相。
3
The major volcanic reservoirs are mainly in the effusive facies, and the best reservoir belts are in the gas cavity belts on top and at base of the effusive facies.