火山岩储层构造裂缝的测井识别及解释

针对辽河油田欢喜岭地区火山岩储层分布和结构构造特点,研究和分析了该地区不同类型火山岩的测井响应特征,结合不同岩性的测井曲线特征对各种火山岩进行了划分,同时利用电导率测井、声波测井、放射性测井和地层倾角测井等方法对火山岩储层的构造裂缝进行了识别,利用裂缝的测井解释成果建立了该区裂缝孔隙度地质模型,进行了裂缝倾角的判定及裂缝孔隙度的计算及火山岩储层评价.

LOG RESPONSE AND EXPLANATION OF STRUCTURAL FRACTURES IN VOLCANIC ROCK RESERVOIR

Volcanic rock hydrocarbon reservoir,which is same as the sedimentary rock reservoir,has already become an important domain for increasing reserves in China′s oilfields.Liaohe oilfield has a long exploration history and a large potentiality of volcanic rock hydrocarbon reservoir.Its volcanic rock hydrocarbon reservoir being as the main reservoir is very complex.In order to make a successful exploration in the volcanic rock hydrocarbon reservoir,the log response of different volcanic rock inHuanxiling of Liaohe oilfield was analyzed,and the different volcanic rocks were determined using log curve of different lithology.The structural fractures of different volcanic rock reservoirs were identified using the methods of electric conductivity logging,acoustic logging,nuclear logging,dip logging.By the use of interpretation of fracture′s log,a geological model for describing porosity of fracture was established,and the fracture′s dip was determined,and fracture porosity was calculated.