● oil
HEC processing and filling in the mud with increasing viscosity. It helps provide a good low-solid mud, and can reduce the hole minimum damage. HEC thickened slurry with easy acids, enzymes or oxidizing degradation of hydrocarbons and maximizing the recovery of oil.
Fracturing mud, HEC can play the role of sediment carried. These fluids can easily be more acid, enzyme or oxidant degradation.
HEC can be formulated with the ideal low-solid drilling fluid, which provides greater penetration and better drilling stability. The rejection characteristics of the fluid can be used in hard rock drilling in the layer structure, the same applies to Bengtan or slippery layer of drilling slump page.
Cement operations in the filling, HEC reduces pore pressure slurry friction, so that the loss of water damage to the structure reduced to a minimum.