2011•Drilling Fluid & Completion FluidRequires access
Study on Thermo-stable Cement Slurry
Jianwen Dai
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Abstract
To resolve cementing problems met in deep wells,thermo-stable retarder,fluid loss agent and stabilizer are synthetized independently,through which the thermo-stable cement slurry is developed and it can be used at more than 200℃.The cement slurry has steady performance for high temperature,adjustable thickening time,less fluid loss,good settlement stability,and high compressive strength,all of which can meet the need of cementing for cementing operation at 200℃ in ultra-deep wells.