摘要
天津东丽湖CGSD-01井位于天津潘庄凸起构造区,该井设计井深4000 m,完钻井深4051.68 m,该井的主要目的之一是通过分段取心钻进获取各地层的地质资料。本文主要介绍了通过尝试不同的取心钻具与钻进方法的组合,探索出一种高效的取心钻进方案,成功地解决了三开雾迷山组复杂地层岩心采取率低的难题,并高质量地达到了取心要求。通过对各技术方案的取心对比分析,总结了地热深井取心钻进的关键技术,以期对后续的钻探取心提供技术上的借鉴和指导。
The geothermal Well CGSD 01 is located in Dongli Lake, TianJin and is part of the tectonic area of Tianjin Panzhuang Bulge. The design depth of the well is 4000m and the completion depth is 4051.68m. One of the main purposes of the well is to obtain geological data of various strata by staged core drilling. An effective coring solution has been found through attempts at combination of different coring tools and drilling methods, which successfully solved the problem of low core recovery in the third stage drilling in Wumishan Formation with high-quality cores obtained. Through comparative analysis of coring with various technical schemes, the key coring technologies for deep geothermal wells have been summarized, providing some experience and guidance for future core drilling.
作者
杜垚森
宋志彬
和国磊
马汉臣
许本冲
陈浩文
DU Yaosen;SONG Zhibin;HE Guolei;MA Hanchen;XU Benchong;CHEN Haowen(The Institute of Exploration Techniques, CAGS, Langfang Hebei 065000, China)
出处
《探矿工程（岩土钻掘工程）》
2019年第3期13-19,共7页
Exploration Engineering:Rock & Soil Drilling and Tunneling
基金
中国地质调查局地质调查项目"天津潘庄凸起构造区地热资源调查(中国地质科学院勘探技术研究所)"(编号:DD20179622)
"京津石地热资源调查(中国地质科学院勘探技术研究所)"(编号:DD20179032)
关键词
潘庄凸起
地热井
雾迷山组
取心钻进
岩心采取率
Panzhuang Bulge
geothermal well
Wumishan Formation
core drilling
core recovery rate
