中国石油地质的若干特点及其对储量增长的影响

CHARACTERISTICS OF PETROLEUM GEOLOGY IN CHINA AND THEIR INFLUENCES TO RESERVE GROWTH

中国大陆及近岸海域居于亚欧、太平洋和印度三大板块的结合部，元古界以来形成性质截然不同的两大套沉 积岩系，经历了两期重大的构造事件，形成了东、中、西三大含油气区，造就了两类中、新生代盆地。特定的石油地质条件和勘探阶段导致目前的探明储量，层位上以中、新生界为主，区域上以东中部区为主，类型上以构造油气藏为主。根据我国盆地油气储量增长曲线呈“多峰型”的规律，近 １５ 年全国油气储量高速增长的事实，第二次全国油气资源评价结果，以及我 国的地质结构利于形成众多非构造油气藏的分析，认为中国待发现的油气资源潜力是巨大的，工作难度也很大。下一世纪上半叶，中国的油气储量和产量还将继续增长。

The China mainland and nearshore areas, located in joint position of three giant plates:India Plate,Pacific Plate and Eurasia Plate.Since Phanerozoic,two massive sets of sedimentary rock series with completely different characteristics had been formed;two periods of important tectonic events had been occurred and hydrocarbon accumulated in eastern,central and western hydrocarbon bearing regions.Because of the special petroleum geology conditions in China, presently proved reserves were mainly found in Mesozoic Cenozoic strata in the eastern region and were mainly in structural pools.Based on the facts that reserve growth curves of basins showed shape of “multi kurtosis type”,China oil and gas reserves have been keeping growth in the recent 15 years.The second time resources estimation in China indicates that China geological tectonics are favorable to form various non structural oil and gas pools.So there is sufficient evidence to hold that potential of oil and gas resources to be found in China is tremendous,but the explorationis are of great difficulty.It can be predicated that China proved reserves will continuously increase at the first 50 years in next century.