测井技术2017，Vol.41Issue(5)：538-543,6.DOI:10.16489/j.issn.1004-1338.2017.05.008
元坝长兴组气藏礁滩沉积微相地质特征及测井识别
Geological Characteristics of Sedimentary Microfacies in Reef Flat of Changxin Formation in Guangyuan Gas Reservoir and its Well Logging Identification Method
摘要
Abstract
The main developmental phases in Changxing formation of Yuanba gas reservoirs are reef and bioclastic shoal reservoir,controlled by different phase with the degree of reservoir development,logging data to carry out the identification of the characteristics of the reef insider is essential.Full electrical imaging and conventional logging data,a detailed description of the environment for the growth,morphology and rock structure characteristic differences in the logging response characteristics of different reef and non-reef strata,discusses Beach nuclear Beach edge and interbank logging response characteristics.Comprehensive studies have shown Changxing gas reservoir reef facies sedimentary cover the reef base-reef nuclear-reef to reef core-reef cover mode,the total development of the two reef cap reservoir vertical performance,its high-quality reservoir is mainly concentrated in the reef cover.Beach nuclear edge interbank Beach logging response characteristics biggest difference is that in the low-energy depositional environment interbank GR higher (30～80 API),was the type and spike-shaped,while the Beach nuclear and beach edge in high-energy andhigher energy depositional environment,GR is low (less than 20 API).In addition,Beach nuclear Beach margin,the biggest difference is that the Beach nuclear RD was "Out of round oversized type" electrical imaging visible cross-bedding,solution porosity development,beach edge was "jagged" RD low angle bedding,clip a small amount of dissolutionthin layers.The beach body widely distributed,but high-quality reservoir is mainly concentrated in nuclear Beach,the Tanjianshan almost not developed reservoir.Established on the basis of the integrated core,well logging,seismic data and regional geological background gas yuanba Tian Changxing group of reef (reef cap,reef core,reef base) and bioclastic beach (beach nuclear,beach edge,Tanjianshan) logging identification mode.关键词
电成像测井/常规测井/生物礁/生屑滩/礁相测井识别模式/滩相测井识别模式Key words
imaging logging/conventional logging/reef/bioclastic beaches/the reef logging recognition mode/beach facies logging recognition mode分类
天文与地球科学引用本文复制引用
杨丽兵,邓文龙,徐守成,杨杰,刘远洋,柯光明..元坝长兴组气藏礁滩沉积微相地质特征及测井识别[J].测井技术,2017,41(5):538-543,6.基金项目
“十三五”国家科技重大专项项目17课题5超深层复杂生物礁底水气藏高效开发技术(2016ZX05017-005) （2016ZX05017-005）
