Ordovician Carbonate Fracture-Cavity Reservoirs Identification and Quantitative Characteristics in Tahe Oilfield
详细信息
- 责任者：Li Yang (China Petroleum & Chemical Corporation ; Beijing 100728 ; China)
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(1)
- 关键词：碳酸盐岩储集层 ; carbonate reservoirs ; 溶洞 ; caves ; 塔里木盆地 ; Tarim Basin
- 页码：p.1-7
- 图表：7 illus., 5 tables, 15 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
In Tahe Ordovician carbonate fracture-cavity reservoirs,21 fracture-cavity units were divided by integrating well-seismic data with static and dynamic methods.A 3D through-going model of cave reservoirs in Tahe oilfield was built by integrating well-seismic data and sequential indicator co-simulation.The results show that the cave reservoir was the main reservoir in Tahe oilfield.During drilling and logging,serious fluid loss,drilling tools unloading and drilling time reducing to the minimum were important indicators to a large cave.The beads-shaped reflection and high abnormal impedance were the typical seismic response characteristic of cave reservoirs.