Oil geologic feature in Sanhu depression of Qaidam Basin and next exploration and study direction
Kang Nan-chang1, Jiao Gui-hao2, Cai Jia-ming1, Lv You-sheng1
1. CNPC,BGP,Zhuozhou City,Hebei Province,072751,China;
2. Langfang Branch of China Research Institute of Exploration and Development,Langfang City,Hebei Province,065000,China
Abstract：Sanhu depression is superimposed depression mainly composing of Quaternary and Neogene Shizigou Stage that is characteristics of simple geologic structure and complex reservoir condition. The weak lifting and descending movement constructed the composition of generation,storage and cap of hydrocarbon that mainly is thin interbedded and large-area distribution's shore and shallow lacustrine facies deposit and autogenous and auto-reserving type. The analysis considered that the depression oil/gas-bearing depression that is mainly lithologic trap characterized by development of surrounding water system,which is favorable to generate the reservoir of water solution bio-gas.
康南昌, 焦贵浩, 蔡加铭, 吕友生. 柴达木盆地三湖拗陷石油地质特征及下步勘探与研究方向[J]. 石油地球物理勘探, 2009, 44(4): 508-514.
Kang Nan-chang, Jiao Gui-hao, Cai Jia-ming, Lv You-sheng. Oil geologic feature in Sanhu depression of Qaidam Basin and next exploration and study direction. OGP, 2009, 44(4): 508-514.
