Ultra -High Density Cement Slurry Cementing Technique
Due to the geological condition of Nanyuan Region of Junggar Basin in Xinjiang being complex, accidents are frequent, the drilling speed is slow, the drilling cycle is long, and the Wellbore quality is poor in the drilling process, which presents a series of technology difficulties for the Cementing operation. Therefore, our institute has started a deep and systematic study into the ultra -high density cement slurry well cementation technology since 1996, including the design and mixed technology of ultra -high density cement slurry, the design of the casing strength in high -pressure wells and security installation casing, and balance cementing technology under narrow safety pressure window circumstances. The ultra -high density cement slurry is designed to replace ultra -high density mud for improving the replacement efficiency and ultrahigh pressure formation fluid congealing during the steady period. Through the organic synthesis of these technologies, a complete high density of slurry cementing technique has been formed. This technology has been applied in An No. 4 well for Φ177. 8mm technical casing cementing, and has obtained success for the first time. It has also successively been utilized in the An 4 and Huo 10 well and has made good application results.
Xu Shuqian Su Hongsheng Liu Jian Wang Zhenchang Du Qingcai Zhang Xingguo Zheng Yongsheng Wang Yun Yan Rui
国际会议
2010 CNPC International Wellbore Technology Seminar(2010年CNPC井筒技术国际研讨会)
北京
英文
324-335
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）