复杂碳酸盐岩储层测井评价:中国的创新与发展

The Innovation and Development of Log Evaluation for Complex Carbonate Reservoir in China

针对塔里木油田、四川油田和长庆油田在非均质礁滩、岩溶风化壳和低孔隙度致密灰岩白云岩等几类主要碳酸盐岩储层测井评价中遇到的诸多难点,重点讨论目前制约中国碳酸盐岩勘探开发的3个关键问题:识别礁滩和岩溶风化壳优质高产储层、判断酸化压裂后的有效工业储层以及发现井壁外隐蔽缝洞储层。利用标准电成像图像识别、孔隙度分布谱分析和远探测声反射波成像等方法,形成了复杂碳酸盐岩评价技术方法体系,由此反映复杂碳酸盐岩测井评价技术近年来在中国的创新与发展。

Heterogeneous reef fiats, karst weathering crusts and tight limestones and dolomites are the main carbonate reservoir types in Tarim, Sichuan and Changqing oilfields. Aiming at the difficulties encounted in carbonate reservoir log evaluation of these types of reservoirs, in this paper, we mainly discuss three key problems that restricting today＇s carbonate exploration and development in China. how to identify prolific reservoirs from reef flats and karst weathering crust reservoirs how to estimate effective industrial reservoirs after the treatment of acid fracturing and how to find hidden fracture-vug reservoirs. The innovation and development of log evaluation technology for complex carbonate reservoir in recent years are thus reflected from these.