渐趋法在气测录井解释油气层方面的应用  

Application of Asymptotic Method to Formation Interpretation by Gas Logging

作　　者：逄海明[1] 张晓明[1] 曾快相[1] 王冬燕[2] 

机构地区：[1]中国石化东北油气分公司勘探开发研究院,吉林长春130062 [2]中国石化东北油气分公司开发处,吉林长春130062

出　　处：《天然气技术与经济》2012年第1期41-44,78-79,共4页Natural Gas Technology and Economy

摘　　要：气测录井是现场解释评价油气储集层的重要手段。结合八屋地区的实际情况,分析了油气层轻烃比、中烃比、重烃比之间的对应关系,建立了区分油气关系的3R气测录井解释图版,将不同烃类比值之间的关系用渐趋法表示为线性函数,解决了八屋地区油气难以识别的难题,同时为钻井的动态跟踪提供指导。Gas logging is an important tool for interpreting and evaluating reservoir on-site. In this study,some corresponding relations among light hydrocarbon ratio, middle hydrocarbon ratio and heavy hydrocarbon ratio are analyzed for Bawu area. An interpretation chart of 3R gas logging, which is used to distinguish the relationship between oil and gas, is also established. The relations among different hydrocarbon ratios are represented as linear function by asymptotic method. This method can solve a problem that oil and gas in Bawu area is difficult to be identified. Meanwhile,it also can provide guidance for dynamic tracking of drilling activities.

关 键 词：气测录井 渐趋法 低孔低渗 3R值 全烃值 油气识别 

分 类 号：P631.84[天文地球—地质矿产勘探] P618.13[天文地球—地质学]