塔河油田碳酸盐岩缝洞型油藏排水采油实践  

Practices of Oil Development of Ordovician Carbonate Reservoirs in Tahe Oilfield by Drainage Process

作　　者：胡文革[1,2] 李相方[1] 

机构地区：[1]中国石油大学石油工程学院,北京昌平102249 [2]中国石化西北油田分公司,乌鲁木齐830011

出　　处：《新疆石油地质》2012年第4期461-463,共3页Xinjiang Petroleum Geology

摘　　要：塔河油田奥陶系碳酸盐岩缝洞型油藏储集体非均质性强,油水关系复杂,部分井水层在高返排水后出油。通过与四川盆地排水找气机理的对比分析,认为塔河油田奥陶系碳酸盐岩缝洞型油藏具有排水找油的基本条件,通过实践获得成功,并提出选择"排水找油"井的一些标志:一定储集空间、水体能量弱、有较好的录井显示、测试见油花或有硫化氢显示。排水找油的成功加深了对塔河油田碳酸盐岩油藏成藏规律的认识,探索了碳酸盐岩油藏新的开发途径。The Ordovician carbonate reservoirs with fractures and cavities in Tahe oilfield is characterized by serious heterogeneity,great changes of reservoir space,complex oil-water relations.Some wells drilled into the water zones procuce oil after high backflow volume.By means of experiences of searching gas by drainage process in Sichuan basin,it is recognized that the searching oil by drainage process can be practicable in Tahe Ordovician carbonate reservoirs.From the successful test,the process is optimized by selection of non-production wells with certain reservoir space,weak water energy,better logging data,oil flowers or H2S in testing.The successful practice of searching oil by drainage process in Tahe Ordovician carbonate reservoirs has deepened the recognition of hydrocarbon accumulation in such a reservoir,opening a new way for developing the carbonate reservoirs in Tarim basin.

关 键 词：塔河油田 碳酸盐岩 缝洞型油藏 排水找油 

分 类 号：TE355.9[石油与天然气工程—油气田开发工程]