辽河滩海葵东地区低阻油气层测井评价  

Logging Assessments for Low-resistivity Reservoirs in Kuidong Area of Liaohe Beach Zones

作　　者：樊佐春[1] 

机构地区：[1]中国石油辽河油田分公司,辽宁盘锦124010

出　　处：《特种油气藏》2017年第6期121-124,共4页Special Oil & Gas Reservoirs

基　　金：国家科技重大专项"渤海湾盆地精细勘探关键技术"子课题"辽河坳陷增储领域地质评价与勘探实践"(2016ZX05006-005)

摘　　要：辽河滩海葵东地区低阻油气层发育,但其成因机理不明,测井识别难度大。通过对研究区岩性、微观结构、黏土矿物、含油幅度、钻井液等深入分析可知,高束缚水饱和度、低含油幅度和盐水钻井液侵入是低阻油气层形成的三大成因。为解决钻井液侵入而无法准确识别流体性质等难题,从不同测井技术原理出发,针对不同类型成因机理优选合适的测井评价技术。研究表明:高束缚水饱和度造成的低阻油气层,应优选核磁共振测井;盐水钻井液侵入和砂泥岩薄互层造成的低阻油气层,应优选具有不同探测深度的高分辨率阵列感应测井。该研究可为辽河油田其他低阻油气层研究提供借鉴。Kuidong Area in Liaohe beach zone has low-resistivity reservoirs well developed. But with significant un- certainties in their genetic mechanisms, it is a challenging job to identify these reservoirs through logging data inter- pretation. Through thorough studies related to lithologic features, microscopic structures, clay minerals, oil-bearing amplitudes, drilling fluids and other features in the concerned area, saturation of highly bounded water, low oil- bearing amplitudes and invasion of saltwater drilling fluids are the three key factors for formation of low-resistivity reservoirs. To remove problems related to accurate identification of fluid properties due to invasion of drilling fluids, principles of different logging technologies were considered to develop satisfactory logging assessment techniques to cope with genetic mechanisms of various types. Research results show ： nuclear magnetic resonance （ NMR ） logging techniques shall be deployed for low-resistivity reservoir generated due to high saturation of bounded water, where- as hlgh-resolution array induction logging with variable detection depths shall be used in low-resistivity reservoirs generated due to invasion of saltwater drilling fluids and alternating thin sandstone and mudstone layers. Relevant research results may provide valuable references for studies related to other low-resistivity reservoir in the Liaohe Oilfield.

关 键 词：低阻油气层 成因机理 测井评价 葵东地区 

分 类 号：TE132[石油与天然气工程—油气勘探]