摘要
针对火山岩裂缝性油气藏裂缝测井识别的难题,在分析其裂缝曲线元及其变化特征的基础上,刻画了裂缝曲线元的数学特征,建立了基于测井曲线元的裂缝概率模型,进而计算裂缝发育的概率。利用该方法对准噶尔盆地六九区火山岩储层进行了裂缝定量识别,其结果与岩心描述对比表明,该方法能够较准确地对火山岩裂缝进行识别,且精度较高、实用性强,能够满足火山岩地层裂缝测井识别精度的要求。
To solve the tough problem of identifying fractures in volcanic fractured reservoirs using logging data, the fracture cure unit and its variation characteristics are fully analyzed, the mathematics characteristic of the fracture cure unit are depicted, and the fracture probabilistic model based on log curve unit are established, then the probability of fracture growth are calculated. In Block 69 of Junggar Basin, fractures in volcanic reservoir have been quantitatively identified using this method. Results of identification and core description comparison indicated that this method could accurately and precisely identify fractures in volcanic rocks, which could be adopted in practical use and would meet the accuracy requirements of fractures identification in volcanic reservoirs.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2008年第5期132-134,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
火山岩
裂缝
测井曲线元
定量识别
volcanic rock
fracture
logging curve unit
quantitative identification
