摘要
塔河油田碳酸盐岩储集层主要为岩溶作用、多期构造叠加及构造变形作用形成的缝洞型储集层,裂缝具有连通有效储存空间的桥梁作用。区分构造裂缝与非构造裂缝,结合塔河油田构造特征,并对碳酸盐岩储层裂缝特征、分类及其成因进行了分析。研究表明:构造裂缝为塔河油田岩溶储层发育提供了流体运移通道,为油气的运移,特别是垂向运移提供了条件;非构造裂缝的存在改善了储层储渗性能,扩大了储层泄油面积。构造裂缝和非构造裂缝的存在作为储层的有利影响因素,对其进行深入研究可以为碳酸盐岩储层开发提供有益参考,并可增加储层预测产量。
The carbonate reservoirs in Tahe Oilfield are fracture-cavity reservoirs generated from karstification, multiphase structure superposition and tectonic deformation. The reservoir space is connected by fractures. The tectoclase and non-tectoclase are discriminated, and the characteristics, classification and genesis of fractures in carbonate reservoirs are analyzed for Tahe Oilfield. The study shows that tectoclase acts as hydrocarbon migration path, especially vertical migration in karst reservoirs of Tahe Oilfield; non-tectocalse improves petrophysical property and enlarges drainage area. In-depth study of tectoclase and non-tectoclase can provide useful reference to carbonate reservoir development and increase forecast production.
出处
《特种油气藏》
CAS
CSCD
2009年第4期21-24,27,共5页
Special Oil & Gas Reservoirs
基金
国家重点基础研究发展计划(973计划)项目"碳酸盐岩缝洞型油藏开发基础研究"(2006CB202400)项目第一子课题"碳酸盐岩缝洞系统模式及成因研究"(2006CB202401)部分研究成果
