Introduction

It is prepare from water-soluble organic polymer with a variability part and metal oxide by fine chemical combination. The cake hardness and the affinity between mud cake and cementing can be improved due to the effect of physical chemistry and surface chemistry and the cake has the following functions: can form a finely sealing film to seal the formation; reduce the dynamic filter loss and improve the cement job quality. It can be used in various water-based drilling fluids and has no toxicity and pollution.

Main features

1. can reduce the dynamic fluid loss of drilling fluid;
2. can improve the affinity between mud cake and cementing and the increasing rate of cement job quality is 15%～40% on the basis of different drilling fluids;
3. the high-temperature resistant is above 180℃;
4. can be used in fresh mud, sea water mud, brine mud and formate mud.

Usage

It can be added by hopper, and the addition is 0.5%～2.0%. It is added a