气测录井资料的影响分析及校正方法  

Gas logging data influence analysis and correction method.

作　　者：曹凤俊[1] 

机构地区：[1]大庆油田地质录井公司

出　　处：《录井工程》2008年第1期22-24,共3页Mud Logging Engineering

摘　　要：现场气测录井受钻井施工条件的影响,对气体检测结果影响很大。通过开展钻井工程的影响因素分析,针对近平衡及过平衡钻井条件对气体检测的影响,特别是钻井取心对气测录井资料的影响因素分析,建立了钻头破碎岩石体积的校正方法和全烃积分校正方法,消除了取心井段破碎岩石体积较小和钻时较大对气测录井资料的影响,为综合解释提供了更准确的气测评价参数,并在实际生产应用中见到了较好效果。Drilling operating conditions exert great effects on gas detec- tion results of on-site gas logging.Through carrying out influence factor analysis to drilling engineering and in accordance with the an- alyses of the influence of near-balanced and overbalance drilling con- ditions on gas detection,especially the influence factors of drill-co- ring on gas logging data,the paper set up the correction methods for broken-rock volume and total hydrocarbon integration,elimina- ting the effects of smaller broken-rock volume and longer drilling time for cored intervals on gas logging data and providing correct gas logging evaluation parameters for comprehensive interpretation, these methods have obtained good results in real production prac- tice.

关 键 词：影响因素 气测井 气体检测 破碎体积 全烃面积积分 钻时 

分 类 号：TE142[石油与天然气工程—油气勘探] TE27