近地表游离烃化探系统及其应用效果  

Geochemical Exploration System for Near-surface Free Hydrocarbon and Its Application Effect

作　　者：索孝东[1] 劳文剑[1] 

机构地区：[1]中国石油天然气集团公司石油物理勘探局地调五处,河北省定兴072656

出　　处：《勘探家（石油与天然气）》1999年第1期52-55,共4页

摘　　要：近地表游离烃化探是以土壤中游离烃直接检测技术为主,多项参数综合运用的近地表油气化探系统,该系统采用车载高精度美国HP5890Ⅱ型和日本GC-14A型气相色谱仪及其配套设备,在野外现场直接检测近地表土壤中游离气中轻烃组分C_1—C_2及氢气、氦气和二氧化碳。另外,室内还具有分析各类土壤项目的能力,如酸解烃、紫外光谱、蚀变碳酸盐、铀、汞等。该系统实现了油气化探野外采集、分析与解释的现场化,可及时指导野外生产和进一步勘探工作,近年来通过大量的试验与生产,该系统显示了较好的应用效果。The geochemical exploration for near-surface free hydrocarbons is a geochemical exploration system mainly using the direct detect technology for the free hydrocarbons in soil and combining with the comprehensive application of multiple parameters. The system uses HP5890 and GC-14A truck high-accuracy gas chromatograph to detect C_1-C_2, H_2, He and CO_2 in the free gas in near surface soil. In addition, every item of soil can be analyzed indoor, such as acidolysis hydrocarbon, ultraviolet spectrum, alteration carbonate, U, Hg, etc. The system can carry out data acquisition, analysis and interpretation of hydrocarbon geochemical exploration in the field, which can guide the field production and further exploration in time. Favorable application effects have been achieved in a lot of tests and production.

关 键 词：游离烃 地球化学勘探 近地表 油气勘探 

分 类 号：P618.130.8[天文地球—矿床学]