多因素影响下的气测数据综合校正技术  

Comprehensive correction technology of gas logging data under the influence of multiple factors

作　　者：王拓夫 徐哲 梁治国 郝涛 杜鹏 李洪健 WANG Tuofu;XU Zhe;LIANG Zhiguo;HAO Tao;DU Peng;LI Hongjian(Exploration Enterprise of PetroChina Liaohe Oilfield Company,Panjin,Liaoning 124010,China;Mud Logging Technology Research and Development Center,CNPC,Panjin,Liaoning 124010,China;GWDC Mud Logging Company,CNPC,Panjin,Liaoning 124010,China)

机构地区：[1]中国石油辽河油田分公司勘探事业部 [2]中国石油天然气集团有限公司录井技术研发中心 [3]中国石油长城钻探工程有限公司录井公司

出　　处：《录井工程》2024年第1期47-51,共5页Mud Logging Engineering

基　　金：中国石油辽河油田分公司勘探事业部科技项目“复杂条件下录井含油气性资料处理关键技术研究”(编号:2023SLKT⁃01⁃04)。

摘　　要：气测录井是油气勘探开发中一种必不可少的录井检测分析手段,但是由于多种因素影响,气测数据往往不能准确反映地下油气信息。在确定影响气测数据主要因素的基础上,建立钻头直径、钻时、钻井液排量、钻井液粘度以及井筒压差各单项影响因素校正模型,进一步利用主成分分析方法建立了气测数据多因素影响下的综合校正模型。通过辽河油区T 281井的应用,气测全烃数据质量有了较明显的提升,能够更好地反映地层真实的含油气信息,经试油验证该技术应用效果良好,可以有效增强气测数据的可对比性,提高了录井综合解释的精度,为油田高效勘探开发、施工决策及试油选层提供了有力的技术支撑。Gas logging is an essential means of mud logging detection and analysis in oil⁃gas exploration and development.However,due to various factors,gas logging data often cannot accurately reflect underground oil and gas information.On the basis of determining the main factors influencing gas logging data,establish correction models for individual influencing factors such as drill bit diameter,drilling time,drilling fluid displacement,drilling fluid viscosity,and wellbore pressure difference.The principal component analysis method is further used to establish a comprehensive correction model of gas logging data under the influence of multiple factors.Through the application of well T 281 in Liaohe oil region,the quality of gas logging total hydrocarbon data has been significantly improved,which can better reflect the real oil and gas information of the formation.The oil testing has verified that the application effect of this technology is good,which can effectively enhance the comparability of gas logging data,improve the accuracy of comprehensive interpretation of mud logging,and provide strong technical support for efficient exploration and development,construction decision⁃making,and oil testing and layer selection in the oilfield.

关 键 词：气测录井 影响因素 井筒压差 综合校正 主成分分析 

分 类 号：TE132.1[石油与天然气工程—油气勘探]