摘要
把缝洞单元的驱动类型划分为封闭弹性驱动、有水侵的弹性驱动、有封闭水体的弹性驱动及有封闭水体和水侵的弹性驱动4种。给出了每种驱动类型的物质平衡方程,所给出的方程充分结合了缝洞型碳酸盐岩油藏的特点,区别于以往的物质平衡方程。提出了缝洞单元的弹性产率、水侵量及封闭水体的水体倍数等评价缝洞单元能量的指标,建立了缝洞型碳酸盐岩油藏的能量评价方法。该方法能够对缝洞单元能量特征和驱动类型进行判断,并对能量和水侵量进行定量计算。实例计算结果表明,建立的方法能够较好地评价缝洞单元的能量特征。
The driving mechanisms of the fractured-vuggy units are classified into four types： closed elastic drive, elastic drive with water invasion, elastic drive with elosed aquifer, and elastic drive with both closed aquifer and water invasion. A material balance equation is established for each type of driven mechanism. These equations take the characteristics of fraetured-vuggy carbonate reservoirs into full consideration, and thus are different from the former equations. This paper puts forward several indexes for evaluating the energy of fraetured- vuggry units, including the elastic production rate, the volume of water invasion and multiple of closed aquifer, and proposes a method for evaluation of fractured-vuggy carbonate reservoirs. This method can determine the energy characteristics of fractured-vuggy units and drive mechanisms and can be used to quantitatively ealculate the energy and invasion water volume. The calculated results show that the established method can be used to evaluate the energy characteristics of fraetured-vuggy units.
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
2009年第6期773-778,785,共7页
Oil & Gas Geology
基金
国家重点基础研究发展规划(973)项目"碳酸盐岩缝洞型油藏开发基础研究"(2006CB202400)
国家科技重大专项大型油气田及煤层气开发项目"碳酸盐岩油田开发关键技术"(2008ZX05014-003)
关键词
水侵量
驱动类型
缝洞单元
能量评价
碳酸盐岩
物质平衡方法
water invasion volume
drive mechanism
fractured-vuggy unit
energy evaluation
carbonate rock
material balance method
