地质导向钻井前探技术现状及进展  

Present Situation and Progress of Geosteering Drilling Pre-prospecting Technology

作　　者：林昕 苑仁国 秦磊 刘素周 苏朝博 卢中原 于忠涛 谭伟雄 Lin Xin;Yuan Renguo;Qin Lei;Liu Suzhou;Su Chaobo;Lu Zhongyuan;Yu Zhongtao;Tan Weixiong(CNOOC Ener Tech-Drilling&Production Co.,Tianjin 300452,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《特种油气藏》2021年第2期1-10,共10页Special Oil & Gas Reservoirs

基　　金：中海油能源发展股份有限公司重大科研专项(课题)“钻井地质风险评价及实时导向技术研究”(HFZDZX-GJ2020-01-05)。

摘　　要：地质导向钻井前探技术可有效提高钻井效率和成功率。将地质导向钻井前探技术分为近钻头前探技术、随钻地震前探技术和方位电磁波前探技术3类,结合复杂油气藏勘探开发案例,对地质导向钻井前探技术中常用的近钻头测量、R-VSP、VSP-WD、边界探测、储层成像和随钻前视等方法进行了分析总结。各种地质导向钻井前探技术分别从不同途径实现地质导向钻井前探测量,但都存在一定的局限性;前探技术应在提高探测精度与多方法联合应用上深入研究,为应用前探技术进行套管下深设计、地层压力预测、泥浆窗口设置、复杂油气藏精细刻画、钻井轨迹优化等提供有力的技术支撑。该研究对于地质导向钻井前探技术科研攻关及现场应用具有参考价值。Geosteering drilling pre-prospecting technology can effectively improve drilling efficiency and success rate.There are three types of geosteering drilling pre-prospecting technology:near-bit pre-prospecting,seismic-while-drilling pre-prospecting,and azimuth electromagnetic wave pre-prospecting.With case study of exploration and development of complex oil and gas reservoirs,methods widely used in the geosteering drilling pre-prospecting technology were analyzed and summarized,including near-bit measurement,R-VSP,VSP-WD,bed boundary mapping,reservoir mapping while drilling,and looking ahead while drilling.All kinds of geo-steering pre-prospecting technologies can be used for measurements in different ways,but they all have certain limitations.There is a need for pre-prospecting tehcnologies to conduct further studies on the improvement of prospecting accuracy and the combined application of multiple methods,so as to provide strong technical support for casing setting depth design,formation pressure prediction,mud density window setting,detailed description of complex oil and gas reservoirs,and drilling trajectory optimization for the application of pre-prospecting technologies.The study can provide a strong reference for domestic research and field application of geosteering drilling pre-prospecting technologies.

关 键 词：地质导向钻井前探技术 近钻头前探技术 随钻地震前探技术 方位电磁波前探技术 

分 类 号：TE928[石油与天然气工程—石油机械设备]