YI-CPG(M) is a medium-cloud-point glycol used in water-base drilling fluids to improve shale stability and lubricity. YI-CPG(M) can be successfully used with non-dispersed KCL/PHPA drilling fluids to stabilize troublesome shale formations through complex bonding onto clay surfaces and cloud point technology.
YI-CPG(M) stabilizes hydratable and dispersible shales by adsorbing onto clay surfaces and restricting the water penetration into the clay matrix when the system temperature is below the cloud point.
YOGI- YOGI-CPG(M) forms thermally activated mud emulsion near the cloud point and becomes insoluble or clouded out above the cloud point. This phenomenon protects shales by plugging shale pores and preventing the pressure transmission between wellbore and formation.
YI-CPG(M)works in synergy with KCL and causes hardening of soft shales.
It reduces the potential for bit and BHA balling and improves lubricity. It provides the effective HTHP filtration control and improves the filter cake quality.
It is compatible with most water-base drilling fluids and not affected by contaminant & is environmentally acceptable. YI -CPG works in synergy with KCL and causes hardening of soft shales.
CPG-M, CLOUD POINT WITH 3% IN 10% KCl =80°C
CPG-L, CLOUD POINT WITH 3% IN 10 % KCL =42°C
CPG-H, CLOUD POINT WITH 3% IN 10% KCL=91°C