论文详情
用地球化学方法识别真假油气
——以四川盆地磨溪32井为例
断块油气田
2018年 25卷 第01期
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Title
Geochemical identification method for true or false oil and gas shows: taking Well Moxi 32 in Sichuan Basin as an example
作者
董君妍2
王镇全1
殷文1
陈世加2
路俊刚2
单位
中国石油大学(北京)克拉玛依校区石油学院,新疆 克拉玛依 834000
西南石油大学地球科学与技术学院,四川 成都 610500
Organization
Petroleum Institute, China University of Petroleum, Karamay 834000, China
School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China
摘要
四川盆地震旦系和寒武系气藏中普遍发现具有较强荧光显示的有机物,通过岩心观察及氯仿溶解物的饱和烃色谱 ̄质谱分析得出,这种有机物的正构烷烃具有明显的偶碳数优势,偶数碳位置均出现2个高峰值,奇偶优势指数(OEP)为0.29。分析认为,这种有机物是钻井液中加入的带有荧光材料的添加剂。随着实验仪器越来越精密,样品前处理的方法显得越来越重要,文中以磨溪32井龙王庙组岩心为例,介绍了一种简单有效的前处理方法。
Abstract
Strongly fluorescent display was generally found in the Sinian-Cambrian gas reservoirs, Sichuan Basin. Analyzing the core observation and saturated hydrocarbon by GC-MS, the even number alkane from soluble materials has obvious advantages, and there are two high peaks in even carbon positions and the OEP is 0.29. Therefore the fluorescence material is not the original material in the stratum but the pollutant from drilling fluid. With the precision development of experimental apparatus, the appropriate
pre-treatment is becoming more and more important in the experiment. Taking Well Moxi 32 in Sichuan Basin as an example, a simple and effective pretreatment method is introduced.
关键词:
地球化学;
污染物;
荧光;
抽提物;
四川盆地
;
Keywords:
geochemistry;
pollutant;
fluorescence;
extract;
Sichuan Basin
;
DOI
10.6056/dkyqt201801008