吐-哈盆地台北凹陷侏罗系油藏类型及成藏条件分析

AN ANALYSIS OF THE TYPE AND FORMATION CONDITIONOF JURASSIC OIL RESERVOIR IN TAIBEI DEPRESSION IN TURPAN-HAMI BASIN

本文采用以圈闭成因为主、以影响油气分布主要因素为辅的分类方法,将吐-哈盆地台北凹陷已发现的油气藏分为构造油气藏、复合油气藏两大类;又根据断层在油气藏中的作用,分为背斜油气藏、断层油气藏及原生砂岩体油气藏三类,六个亚类。对油气藏形成的研究,可将台北凹陷已发现的油气藏分为四种成藏类型,本文命名为鄯善型、温吉桑型、七克台型和胜金口型。不同成藏条件的油气藏其构造演化、母源及油藏特点均不相同。

Taking the causes of the formation traps as a principal basis and the main factors of affectting oil-gas distribution as auxiliary ones, the oil-gas reservoir of Taibei depression are divided into two main types: structural oil-gas reservoir and complex reservoir. According to the function of faults in the forming of oil-gas reservoir, they are divided into three types: anticlinal oil-gas reservoir, fault oil-gas reservoir and original sand body oil-gas reservoir; and six subtypes oil-gas reservoirs are divided further. A study of formation of the oil-gas reservoir indicates that the oil-gas reservoirs discovered in Taibei depression can be divided into four types: Shanshan type, Wenjisang type, Qiketai type and Shengjinkou type as named in the thesis. Oil-gas reservoirs which have different formation conditions are different in structural evolution, source material and oil-gas reservoir characteristics.