薄差层厚度识别技术及其应用  

RECOGNIZING TECHNIQUE AND ITS APPLICATION FOR THE THICKNESS OF THE THIN AND POOR LAYER

作　　者：代青楼 

机构地区：[1]大庆油田有限责任公司第三采油厂,黑龙江大庆163113

出　　处：《大庆石油地质与开发》2015年第4期152-157,共6页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家"十二五"重大专项(2011ZX05052003)部分研究成果

摘　　要：针对大庆长垣目前普遍采用的HY-1000测井系列存在电性特征响应不明显而导致薄差层划分效果较差的问题,开展了薄差层厚度识别技术研究。通过成像测井刻度常规测井、建立成像测井色级与常规测井电阻率的对应关系及直方图均衡化处理,使原来凸显不出来的薄差层露出本色。以基本岩性曲线图版和色级作为二次辅助判别标准,进一步提高了薄差层的划分精度。经萨北开发区30口密闭取心井验证,应用改进的方法,平均单井补划表外薄差层厚度2.4 m,补划率2.1%,储层厚度解释符合率高达90.2%,比常规解释提高8.2%。In the light of the problem of the rather poor division result （ non obvious electrical features generally by means of HY-1000 logging series at present） of the thin and poor layer in Daqing Placanticline, the researches on the recognizing technique of the thickness the layers are conducted. Through the following measures： the conven- tional logging calibrated by the imaging logging, established corresponding relationship between the color grade of the imaging logging and the resistivity of the conventional logging and moreover the homogenization pretreatment by the histogram, the purpose of showing up the non obvious features is realized. Taking the basic lithology curve chart-board and color grade as the assistant dividing standards, the division precision is improved. It is proven by 30 sealed coring wells＂ data in Sabei Development Zone that with the help of the improved technical method, the average made-up divided untabulated thickness per well is risen to 2. 4 m, the made-up divided ratio is up to 2. 1% , the interpreted coincidence rate of the reservoir thickness is 90.2% i.e. enhanced by 8.2% than the conventional interpretation rate.

关 键 词：成像测井 常规电阻率测井 刻度 色级 均衡化处理 厚度划分 薄差层 大庆长垣 

分 类 号：TE321[石油与天然气工程—油气田开发工程]