地质工程一体化技术在塔河南岸超深井钻探施工中的应用  

Application of geology-engineering integration technology in ultra-deep well drilling on the south bank of Tarim river

作　　者：唐莉 殷文荣 黄叶海 毛勇军 陈勇 柴晓武 TANG Li;YIN Wenrong;HUANG Yehai;MAO Yongjun;CHEN Yong;CHAI Xiaowu(No.1 Mud Logging Company,BHDC,CNPC,Tianjin 300280,China)

机构地区：[1]中国石油渤海钻探第一录井公司

出　　处：《录井工程》2024年第3期52-62,共11页Mud Logging Engineering

摘　　要：塔河南岸是塔里木油田勘探开发增储上产的主要区域之一,以深层、超深层为主要勘探目标,但受二叠系火成岩发育影响,在钻井过程中,井漏、卡钻事故频发,严重制约了钻井提速。为此,在钻完井阶段通过地质工程一体化技术,提前进行井下事故复杂预警,减少钻井过程中工程事故复杂。即钻前利用地震、测井、录井识别方法,总结火成岩分布规律及火成岩相组合方式,进行单井岩性预测,建立地质风险预测模板,以此指导钻头选型,同时提前制定防漏措施;钻中利用元素、全岩、岩石薄片鉴定、扫描电镜等录井技术组合,从“化学成分+微观结构”角度识别火成岩岩性,建立火成岩识别标准,进行火成岩岩性识别,实现现场精准卡层、裂缝识别、可钻性评价,从而进行实时风险预警;钻后总结施工经验,完善二叠系火成岩段安全钻井提速模板,对后续钻井提供指导。运用地质工程一体化技术为优化火成岩发育区钻井施工提供了地质技术支撑,有效降低了区域事故复杂率,提升了钻井时效。The south bank of Tarim river is one of the main areas for exploration and development of the Tarim Oilfield to increase reserves and production,with deep and ultra-deep layers as the main exploration targets.However,due to the development of Permian igneous rocks,frequent incidents of lost circulation and stuck occur during the drilling process,which seriously restrict the drilling speed.To this end,in the drilling and completion stages,the complexity early warning of downhole accidents is carried out in advance through the geology-engineering integration technology,so as to reduce the complexity of engineering accidents in the drilling process.That is,before drilling,seismic,well logging and mud logging identification methods are used to summarize the distribution of igneous rocks and the combination of igneous rock facies,to predict the lithology of a single well,to establish a geological risk prediction template,to guide the selection of drill bits,and to formulate lost circulation prevention measures in advance.During drilling,the combination of mud logging technologies such as elements,whole rock,rock thin section identification,and scanning electron microscope is used to identify igneous rock lithology from the perspective of"chemical composition+microstructure",establish igneous rock identification criteria,carry out igneous rock lithology identification,and achieve accurate site layer determination,fracture identification,drillability evaluation,so as to conduct real-time risk early warning.Post drilling,the construction experience is summarized,and the penetration rate improvement template for safe drilling in Permian igneous rock sections is perfected,which provides guidance for subsequent drilling.The geology-engineering integration technology provides technical support of the geology for the optimization of drilling construction in igneous rock development area,effectively reduces the regional accident complexity rate,and improves time efficiency of drilling.

关 键 词：地质工程一体化 塔河南岸 火成岩 超深井 录井技术 钻井安全 

分 类 号：TE132.1[石油与天然气工程—油气勘探]