Meshwork-carpet structural petroleum accumulation and transportation systems of the Carboniferous in the central Tarim Uplift
JIANG Tongwen1,2, XU Zhaohui1, XU Huaimin1, YANG Jianping2, YIN Nanxin3
1. College of Geosciences, China University of Petroleum-Beijing, Beijing 102249, China 2. Tarim Oilfield Company, PetroChina, Korla 841000, China 3. Postdoctoral Research Workstation of Zhongyuan Oilfield Company, Sinopec, Zhongyuan Oilfield, Puyang 457001, China
The Tarim Basin has generally undergone complex evolution with polycyclic tectonic events, and it has multiple layers of source rocks. It has had multiple periods of hydrocarbon accumulation and reservoir destruction. Mixed oil is common and distal source accumulation systems prevail. As a result, it is difficult to pick up a single-source system to help understand petroleum accumulation. Under the guidance of the meshwork-carpet structural petroleum accumulation model, the structure and transportation system of the Carboniferous in the central Tarim uplift was analyzed. The petroleum accumulation system is formed by two lower unit levels, and each unit has a three layered structure, namely channel-net layer, storage layer and accumulation layer. The conductive system can be divided into 4 classes and 11 types, such as faults, unconformities, connected sands and volcanic rocks. The transportation model has “Y”-shaped, “T”-shaped and “S”-shaped segments. The model of the central Tarim uplift is a typical meshwork-carpet structural petroleum accumulation system, and it provides new ideas for exploration and development of reservoirs.
Key words:
meshwork-carpet structural petroleum accumulation system transportation system migration patterns Carboniferous Tarim Basin
收稿日期: 2016-11-17
PACS:
基金资助:国家自然科学基金项目(41302109)资助
通讯作者:
徐朝晖, xuzh211@163.com
引用本文:
江同文,徐朝晖,徐怀民,阳建平,尹楠鑫. 塔中低凸起石炭系网毯式油气成藏体系结构及输导体系[J]. 石油科学通报, 2017, 2(2): 176-186. JIANG Tongwen, XU Zhaohui, XU Huaimin, YANG Jianping, YIN Nanxin. Meshwork-carpet structural petroleum accumulation and transportation systems of the Carboniferous in the central Tarim Uplift. Petroleum Science Bulletin, 2017, 2(2): 176-186.