基于录井参数的溢流预警模型研究  

Overflow warning model based on mud logging parameters

作　　者：孙合辉[1,2] 陶青龙 李邓玥 陈玉新 高敬民 姜勇 

机构地区：[1]天津大学精密仪器学院 [2]中国石油渤海钻探第一录井公司 [3]中国石油渤海钻探第二录井公司

出　　处：《录井工程》2015年第4期17-21,93,共5页Mud Logging Engineering

基　　金：国家科技重大专项大型油气田及煤层气开发项目"旋转导向及随钻测录酸性气层测试技术与装备"子项目"深井随钻录井技术与装备"(编号:2011ZX05021-005)

摘　　要：钻井过程中溢流的及时发现,将为排除溢流、重建压力平衡赢得宝贵时间,从而降低二次井控的难度。及时判断溢流建立在精准的钻井参数和正确的溢流预警模型基础之上。为建立溢流预警模型,首先对溢流发生过程进行分析,建立溢流过程的物理模型,并以此为基础建立溢流监测的数学模型,通过对录井参数的数学重构并导入数学模型,建立了多工况下溢流发生的贝叶斯预警模型。现场应用试验验证了模型的可靠性,为录井参数的二次应用和钻井安全生产提供了技术支持。Finding out overflow in time during drilling will win precious time for excluding overflow and reconstructing pressure balance,thereby reducing the secondary well control difficulties.Timely warning overflow is based on the accurate drilling parameters and correct overflow warning model.To establish the early warning model for overflow,first,analyze occurrence of the overflow process and build a physical model of the overflow process.Second,establish a mathematical model to monitor overflows.By mathematically reconstructing mud logging parameters and importing mathematical models,the paper established Bayesian warning model on overflows in various conditions.Field application tests verified the reliability of the model,it provided technical support for the second application of mud logging parameters and drilling safety production.

关 键 词：溢流 监测 贝叶斯模型 预警 录井 钻井安全 

分 类 号：TE132.1[石油与天然气工程—油气勘探]