图科1井电成像测井碳酸盐岩岩性解释

作者: 年涛 :油气资源与探测国家重点实验室(中国石油大学(北京)); 中国石油大学(北京) 地球科学学院, 北京; 王贵文 :油气资源与探测国家重点实验室(中国石油大学(北京)) ;中国石油大学(北京) 地球科学学院, 北京; 肖承文 :中石油塔里木油田分公司, 新疆库尔勒; 冉冶 , 刘超 , 崔玉峰 :中国石油大学(北京) 地球科学学院, 北京; 李籽娴 :长江大学工程技术学院, 湖北荆州;

关键词: 成像测井露头科研井连续取心岩性解释塔里木盆地图科1井

摘要:
井壁电成像测井是地层岩石电属性的图像反映,基于离散的岩心标定、统计,提高了井壁电成像测井的地质解释精度。但是岩心深度归位误差和地层岩石结构的相似性等因素导致的图像多解性不容忽视,制约了成像测井的有效应用。图科1井是塔里木盆地部署的第1口针对碳酸盐岩基准剖面展开的露头科研井,完钻井深207m,钻遇层位奥陶系良里塔格组、吐木休克组、一间房组和鹰山组。该井对奥陶系实施了全井段连续取心(60~186.9m)和综合地球物理测井资料采集,试图建立露头、岩心和测井标准刻度井。测井项目包括常规测井和地层微电阻率成像、偶极横波成像、阵列侧向和P型核磁等测井新技术。在全井段岩心和成像测井等比例归位的基础上,基于岩心铸体薄片和岩心描述,对图科1井高质量的电成像测井图像进行了岩性特征解释,剖析了图像特征差异的微观机理,厘定了泥晶灰岩、隐藻泥晶灰岩、生屑灰岩、砂屑灰岩、生物格架岩和生屑泥晶灰岩等岩性在井壁电成像测井图像上的特征。泥晶灰岩为规则带状模式,隐藻泥晶灰岩表现为“塑性”特征,生屑灰岩为亮暗斑组合模式,砂屑灰岩为不规则带状模式和块状模式,生物格架岩为亮斑模式,生屑泥晶灰岩为不均一色彩下的规则组合带状模式。

文章引用: 年涛 , 王贵文 , 肖承文 , 冉冶 , 刘超 , 崔玉峰 , 李籽娴 (2015) 图科1井电成像测井碳酸盐岩岩性解释。 石油天然气学报, 37, 16-24. doi:

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