鄂尔多斯盆地常规测井识别天然裂缝方法应用  

Application of Conventional Well Log Series to Identify the Nature Fracture in Ordos Basin

作　　者：杜林徽 熊洺扬 王玉龙[2] DU Lin-hui;XIONG Ming-yang;WANG Yu-long(Yanxian Oilfield Co.,Ltd.,Fuxian Oil Production Plant,Shaanxi Yan'an 727500,China;Xi’an Shiyou University,Shaanxi Xi’an 710065,China)

机构地区：[1]延长油田股份有限公司富县采油厂,陕西延安727500 [2]西安石油大学,陕西西安710065

出　　处：《辽宁化工》2020年第3期267-269,共3页Liaoning Chemical Industry

摘　　要：低渗透砂岩致密油藏中普遍发育有大量天然裂缝,裂缝的存在使得储层形成了具有两类有效孔渗的复合储层,为此必须对储层裂缝进行识别与准确判断。本文利用常规测井资料建立测井曲线组合判断及测井响应识别模板方法说明了常规测井系列可以有效识别储层垂直缝、水平缝及得出裂缝的识别参数,其中重点应用感应-八侧向、声波、井径等系列举例说明了其在识别储层裂缝上的优势,应用测井曲线组合综合判断方法可以有效提高单一类曲线识别储层裂缝的精度,综合分析可以提高准确度27%。There are generally a lot of nature fractures in low permeability sandstone reservoir,the existence of fractures has led to the formation of composite reservoirs with two types of effective porosity and permeability,therefore,reservoir fractures must be identified and accurately judged.In this paper,the method of combination judgment of logging curves and response template was established by using conventional logging data,and then the nature vertical and horizontal fractures were identified,and the fracture parameters were obtained,induction-8 laterolog series,acoustic logging series,calliper log had response characteristics to identify the nature fracture,using the combination judgment method of logging curves increased the accuracy more than 27%.The method of fracture identification has been proved to be effective and it has important directive significance to the reservoir nature fracture identification in Ordos basin.

关 键 词：鄂尔多斯盆地 常规测井 垂直缝识别 水平缝识别 

分 类 号：TE121[石油与天然气工程—油气勘探]