Research Progress in High-density Cement Slurry Technology
With the improvement of oil and gas field development,more and more deep and ultra deep wells need to be drilled.Various oil fields often encounter abnormally high pressure gas and high pressure saline layers.The use of high-performance high-density cement slurry systems can balance formation pressure,ensure operational safety and quality.This article analyzes the key issues faced in the development of high-performance and high-density cement slurry,introduces the research progress of key technologies for high-density cement slurry,and explores the development direction of high-density cement slurry technology.