Design of Casing Program for YR-3 Well and the Cementing Technique

Abstract:

With the example of YR-3 well, the paper discussed the multilevel well completion structure and cementing technology of drilling for geothermal water in underlying limestone-dolomite complete formation of Niutuozhen geothermal field. With this technology, borehole collapsing caused by circulation loss and cementing difficulties due to low equipment capacity can be effectively solved. Construction of several wells proved that it is a successful and effective method for Niutuozhen geothermal field and the similar ones.

Key words:circulation loss; collapsing; multilevel well completion structure; slurry cementing