贵州凯里地区油气勘探开发远景预测

Oil and Gas Prospects for Exploitationin in Kaili Area,Southeastern Guizhou

研究了贵州凯里地区多年来有关石油、天然气普查、详查、专题研究、钻井地质及地震勘探等各项地质资料，进行对比分析。认为凯里地区是寻找深层天然气的勘探选区，以大山背斜构造（原虎庄背斜）的大坪高点为佳，目的层主要为下寒武统、下奥陶统、中下志留统翁项群，此区聚集的天然气，系石油深演化形成的油型干气；而寻找浅层油气区，以鱼洞向斜较好，目的层为下奥陶统、中下志留统，为油气并存的远景区。

The structurally high stand of the Dashan anticline is the most promising targetfor natural gas search on the basis of the author's analyses of comprehensive data from the early workon geological survey and exploration for oil and gas in Kaili area and from well lOgs and seismicprospecting. The reservoirs may include a set of deep buried sedimentary rocks in age from the earlyCambrian through the early Ordovician to the early-mid Silurian Wengxaing group where there isprobably a dry gas resulting from hypo-evolution of oil. For shallow gas, in author's opinion, theYudong anticline is likely to be fairly favorable target, and the stratigraphic traps might be the lowerOrdovician and the lower to middle Silurian.