摘要
英买力白垩系舒善河组滩坝薄砂岩是目前塔里木盆地塔北隆起带岩性勘探的有利区和目标储层,薄砂岩储层准确预测是英买力地区勘探成功的关键.通过岩心、测井与地震等资料研究及岩石物理分析建立了滩坝薄砂岩地质模型,模型正演、地震响应特征分析及储层敏感参数优选表明滩坝薄砂岩与均方根振幅及测井伽马呈强相关.利用地震波形横向高分辨率和钻井垂向高分辨率经地震相控波形反演获得滩坝薄砂岩的高分辨伽马数据体,以地震沉积学地层切片技术提取伽马体和振幅体敏感属性地层切片,采用二维颜色融合法融合属性得到表征薄层砂岩空间变异性的融合属性.以融合属性进行薄砂岩刻画,预测了英买力地区2套滩坝薄砂岩储层、7个滩坝单砂体分布,并明确了滩坝单砂体的高部位是有利的钻探位置.
The thin sandstone of the Shushanhe Formation Beach bar in the Cretaceous is a favorable area and target reservoir for lithologic exploration in the Yingmaili area of north uplift of Tarim Basin.Accurate prediction of thin sandstone reservoirs is the key to successful exploration of the area.Based on the data study of core, well logging and seismic and rock physics analysis, the model of thin sandstone of beach bar is established. The model forward, seismic response characteristics analysis and reservoir sensitivity parameter optimization show that thin sandstone of beach bar is strongly correlated with mean square root amplitude and well log gamma.High-resolution gamma data body is obtained by seismic facies-controlled waveform inversion using transverse high-resolution of seismic waveform and well logging vertical high-resolution.seismic sedimentology strata slicing technique was used to extract the sensitive attribute strata sections of the gamma body and the amplitude body, and the fusion attribute of thin sandstone space variability are obtained by using two-dimensional color fusion method.Thin sandstone prediction based on fusion attribute, and the distribution of two sets of thin sandstone reservoirs and eight single sand bodies in the area of Yingmaili were predicted. It is clear that the high part of the single sand body of the beach bar is the most favorable drilling position.
作者
赵继龙
曾庆鲁
刘春
陈戈
王俊鹏
张艳明
ZHAO Ji-long;ZENG Qing-lu;LIU Chun;CHEN Ge;WANG Jun-peng;ZHANG Yan-ming(Hangzhou Research Institute of Petroleum Geology,Hangzhou 310023,China;PetroChina Research Institute of Petroleum Exploration and Development Research center of Tarim Basin,Korla 841003,China;China International Technical Cooperation Corporation,Beijing 100004,China)
出处
《地球物理学进展》
CSCD
北大核心
2020年第6期2299-2308,共10页
Progress in Geophysics
基金
国家重大专项“西部重点盆地岩性油气藏区带评价与目标优选”(2017ZX05001-002-005)资助。
关键词
滩坝薄砂岩
敏感属性
相控波形反演
地震沉积学
属性融合
Beach bar thin-sandstone
Sensitive attribute
Facies-controlled waveform inversion
Seismic sedimentology
Attribute fusion
作者简介
第一作者:赵继龙,男,1981年生,博士,高级工程师,主要从事岩性圈闭勘探和薄储层预测工作.E-mail:zhaojl_hz@petrochina.com.cn.
