松辽盆地深层火山岩气藏勘探技术与进展

松辽盆地深层早白垩纪断陷内充填了大量火山岩和碎屑岩地层，在其火山岩地层中已发现了丰富的天然气资源。为此，结合近年来深层火山岩气藏的勘探实践，总结了该区火山岩气藏勘探中形成的5项新技术：气藏的地球物理识别方法、储层岩性识别方法、气层的识别方法、深层气藏钻井技术和深层天然气试气压裂技术。同时介绍了截至目前该区火山岩气藏勘探的最新进展：徐家围子断陷东部获得新突破、徐家围子断陷南部肇州地区钻探获得好效果、徐家围子断陷安达地区含气面积进一步扩大。从目前的勘探技术应用和勘探成果看，松辽盆地深层火山岩气藏具有广阔的勘探开发前景。

EXPLORATORY TECHNIQUES AND THEIR ADVANCEMENT OF DEEP VOLCANIC GAS RESERVOIRS IN THE SONGLIAO BASIN

There are a great number of volcanic and clastic rock formations in deep Early Cretaceous fault depression in Songliao Basin, abundant gas resource have been discovered in volcanic reservoirs. Combined with recent years' exploration practices in deep volcanic gas reservoirs, this paper summarized 5 items of new exploratory techniques as follows: the geophysical identification method of gas reservoirs, lithologic identification method of reservoirs, identification method of gas formations, drilling techniques of deep gas reservoirs, and trial gas fracturing techniques. Meanwhile, this paper introduced some latest development in the volcanic gas reservoirs in the eastern, southern (such as Zhaoqing), and Anda of Xujiaweizi fault depression. From the present application of these exploratory techniques and effects in those districts, bright prospects for future exploration are presented in deep volcanic gas reservoirs in the Songliao Basin.