Technology USP is a cement spacer that can significantly improve cementing quality. It is fully compatible with WBM/OBM/BBM and can flexible adjusted to work with cement system. It realizes:  Carry bits, filter cakes and mud out of annulus to eliminate contamination and channeling caused by bits, filter cakes and mud
Establish a low permeability water based thin membrane on 1st and 2nd interface and thus improve interface bond quality Inhibit skin effect Avoid cement fall back Inhibit cement invasion to formation Inhibit and eliminate cement lost to formation |