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用PZ粒子作外加剂配制的超低比重油井水泥,解决了低压易漏油气层和低破裂压力梯度地层的固井漏失问题。弥补了双级或多级注水泥工艺的缺陷,为开发低压油气层正常完井提供了可靠的保证。
The ultra-low specific gravity oil well cement with PZ particles as admixture solved the cementing leakage problem of low pressure easy-to-leak hydrocarbon layer and low-fracture pressure gradient stratum. Make up the defects of double-stage or multi-stage cementing process and provide a reliable guarantee for the development of normal completion of low-pressure oil and gas reservoirs.