PVA can be used as agent to prevent mud collapsing during the progress of drilling oil and gas. It can be used as fluid loss agent for the oil well cement paste and a auxiliaries for Oil field fracturing fluid.
As collapse prevention agent it can effectively prevent drilling fluid filtrate immerging into drilling mud shale, so as to prevent well bore losing stability even collapse. The PVA performance of inhibiting collapse is effective for a long time due to its own characteristic. PVA not only can reduce the formation damage but also can completely flow back as fracturing fluid additives. Applicative PVA grades: 088-20.