准噶尔盆地玛北斜坡区甜点储层分类及成因模式  

Classification and genetic model of“sweet spot”reservoirs in Mabei slope area,Junggar Basin

作　　者：陈雪珍[1] 曲永强[1] 许多年[1] 尹路[1] 王斌[1] 关新[1] CHEN Xue-zhen;QU Yong-qiang;XU Duo-nian;YIN Lu;WANG Bin;GUAN Xin(Northwest branch,Research Institute of Petroleum Exploration and Development.Petro China,Lanzhou 730020,China)

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020

出　　处：《天然气地球科学》2020年第11期1524-1536,共13页Natural Gas Geoscience

基　　金：国家自然科学基金(编号:41872116);国家科技重大专项(编号:2016ZX05003-002)联合资助。

摘　　要：目前关于"甜点"的定义还没有统一的标准,进而影响对其分类与评价。以准噶尔盆地玛北斜坡区三叠系百口泉组为例,从"甜点储层"主控因素分析入手,结合钻井、测井、地震等资料,厘清研究区"甜点储层"成因及主控因素,为储层评价提供参数。研究认为:沉积相、成岩相、构造相是研究区"甜点储层"的三大主控因素。优选控制参数,在分类方案指导下,选用新的评价参数及方法,对目的层组划分出三大类储层甜点,最终科学建立研究区目的层组"甜点储层"的成因模式,为下一步油气勘探提供了有利的储层靶区和理论指导。At present,there is no uniform standard for the definition of"sweet spot",which affects its classification and evaluation.Taking Triassic Baikouquan Formation reservoir in the north slope area of Mahu Depression of Junggar Basin as an example,starting from the analysis of the main controlling factors of"sweet spot"reservoir,combined with drilling,logging and seismic data,this paper clarifies the genesis and main controlling factors of sweet spot reservoir in the study area,so as to provide parameters for evaluation.It is considered that sedimentary facies,diagenetic facies and structural facies are the three main controlling factors of sweet spot reservoir in the study area.Under the guidance of the classification scheme,three types of reservoir desserts are pointed out by using new evaluation parameters and methods under the guidance of the classification scheme.Finally,the genetic model of the sweet spot reservoirs of the geological target formations is established scientifically,which provides favorable reservoir target area and theoretical guidance for the next step of oil and gas exploration.

关 键 词：准噶尔盆地 玛北斜坡区 三叠系百口泉组 甜点储层 成因模式 

分 类 号：TE122.31[石油与天然气工程—油气勘探]