臺灣廬山層地熱定向鑽井之特性

CHARACTERISTICS OF GEO-THERMAL DRILLING IN LU-SHAN FORMATION, TAIWAN

井雲生(Yun-Sheng Ching) ； 陳國義(Kuo-Yi Chen)

《鑛冶：中國鑛冶工程學會會刊》 29卷3期 (1985/09) Pp. 123-140

https://doi.org/10.30069/MM.198509_29(3).0011

摘要

中油公司在地熱探勘及鑽井方面，至目前為止，就已鑽探的礦區而言，其目標之儲汽層百分之九十以上係在中下部中新世之盧山層內。在所有已鑽鑿的地熱井中，定向井幾佔總數的一半，而以定向鑽井方式施工的地熱井又幾乎全部在廬山層內。因此，由收集、整理在廬山層內實施定向鑽井的經驗、資料，檢討得失，提出可行的因應方法及最有利的施工步驟，實有其必要性。本文以地層特性與井程趨勢的關係、定向鑽井設計、定向鑽井實際作業中操作因素以及管串組配的構想等研討、分析可能遭遇的困難之原因，從經驗中或由已知的特性中整理出一些可供遵循的原則或施工步驟，作為將來在廬山層內實施定向鑽井的參考。

並列摘要

All the Geo-thermal directional wells in Taiwan were drilled in Lu-Shan Formation which is a thermal water bearing formation. An explanation for the difficulties encountered in well course correction becomes signigicant to future operations in such geo-thermal areas. This study describes how the formation tendency influences the well course control, directional orientation, and conventional rotary drilling assemblies. A sum up of all the directional drilling activities in Lu-Shan Formation presents beneficial suggestions of directional drilling design and procedures for future applications.