Drilling Technology of Downhole Seismic Monitoring
Yang Yong-bo · Exploration Engineering(Rock & Soil Drilling and Tunneling) · 2007
Earthquake has great harm to humanity.How can forecast earthquake more effective,timely and accurately is still a scientific research poser.The Downhole seismograph can monitor lots of weak seismic wave that can't be monitored by the ground seismograph.It can decrease the noise interference on the ground and increase the focus positioning accuracy.This paper mainly introduced the design and the key technology of drilling and cementing for the NO.1 seismic monitoring well in Wuhan.The reasonable drilling technology and the specially designed one-way grouting device are adopted in this project to meet the special technical requirements.