天山南地区碳酸盐岩成藏因素分析

Analysis on Carbonate Reservoir Formation Factors in Southern Tianshan Mountains

天山南地区油气资源丰富、南北供烃、两相烃源,油气资源以凝析气和气层气为主,后为常规油。该地区分为海相、陆相两种油源,油气主要由该区北部的库车前陆变形带三叠-侏罗系泥岩烃源岩区、南部满加尔坳陷的寒武-奥陶系下统的碳酸盐岩烃源岩区产出。以天山南地区中两大类烃源岩储层中的碳酸盐岩储层为主要研究对象,以确定碳酸盐岩成藏条件为目标。综合运用地质,测井等方面的数据资料,以石油地质学、油气成藏地质学、构造地质学、测井方法等理论为指导方向,对天山南地区碳酸盐岩成藏条件进行系统的分析。

The southern Tianshan area is rich in oil and gas resources, with two-phase hydrocarbon sources for north-south hydrocarbon supply. The oil and gas resources are mainly condensate gas and gas layer gas, followed by conventional oil. The area is divided into marine and continental oil sources. The oil and gas were mainly derived from the Triassic-Jurassic mudstone source rock area in the Kuqa foreland deformation belt in the north of the area, and the carbonate source rock area of the Lower system in the Cambrian-Ordovician in the Manjiaer Depression in the south. In this thesis, taking the carbonate reservoirs in the two major types of source rock reservoirs in the southern Tianshan area as the main research object, the carbonate reservoir forming conditions were determined. Through comprehensive use of geology, logging and other data, with petroleum geology, oil and gas reservoir forming geology, structural geology, logging methods and other theories as guiding directions, the carbonate reservoir forming conditions in the southern Tianshan area were systematically analyzed.