常见气显示的成因及特征  

The Origing and Character Istics of Gas-show Types

作　　者：武庆河[1] 严国平[1] 赵铁锁[1] 

机构地区：[1]中原石油勘探局地质录井处,河南省濮阳市457001

出　　处：《断块油气田》1999年第3期15-18,共4页Fault-Block Oil & Gas Field

摘　　要：结合油气进入钻井液方式对各种气显示形成原因及其在气测录井图上所表现的特征进行探讨。分析了钻进气、停钻气、再循环气、起下钻气、方钻杆气、污染气、CaC2气七种气显示的成因及其特征，特别注意钻进气同其它气显示叠加在一起形成的显示。气显示类型具有多样性，其形成原因是多方面的。掌握气显示形成原因和其在录井图上的特征是对储层做出正确评价的先决条件。Combining the way of hydrocarbon entering drilling fluid, analysing all kinds of gas show origin and discuss the all kinds of gas show characteristics in gas-logging plot. The article analyses the origin and characteristics of seven kinds gas-show: drilling gas, connection gas, trip gas, kelly gas, contamination gas, recycle gas,CaC2 gas,especially discusses the ags-show of piling up the drilling gas and others. Gas-show have variety,gas-show origin is in many ways, mastering the gas-show origin and characteristics in gas-logging plot is prerequisite to evaluate properly reservoir.

关 键 词：气测录井 气显示特征 油气勘探 

分 类 号：P618.130.8[天文地球—矿床学]