Geothermal Well Drilling and Deep Fault

2nd International Geothermal Conference, GEOHEAT2018

Chen, Zihui^1

No.20 Dahuisi Road, Haidian District, Beijing

100081, China^1

关键词: Deep fault;    Drilling process;    Fractured reservoir;    Geological structures;    Geothermal drilling;    Geothermal resources;    Geothermal systems;    Target faults;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/249/1/012029/pdf
DOI  :  10.1088/1755-1315/249/1/012029

来源: IOP

【 摘 要 】

Hydrothermal geothermal resources rely on geological structure condition. Deep fault owns important function in geothermal system. It is specially for high temperature geothermal field which located in volcano and recent magma area. Such fractured reservoir depends on the distribution of deep fault.The purpose of geothermal well drilling is to gain thermal energy and fluid as much as possible. High quality geothermal well starts from well drilling design. Such design should select your target fault and decide a certain depth to encounter the fault. When implementation of the drilling it is very important to take care if the drilling touching fault. Over-drilling after penetrating fault will lead reversed result. Many examples have explained such stories.