Introduction

It is prepare from fiber material, water-soluble organic polymer and metal oxide by fine chemical combination. The sealing film can be formed due to the effect of physical chemistry and surface chemistry, and then the film can reduce the dynamic fluid loss of drilling fluid, prevent lost circulation and improve wellbore stability. It can be used in various water-based and oil-based drilling fluids, and is especially applicable to offshore drilling engineering because of being useful to protect reservoir and having no toxicity and pollution.

Main features

1. the solid concentration is lower than 3%( magcogel concentration);

2. be not influenced by formation contaminants;

3. the rejection capability is excellent;

4. has a good permeability recovery;

5. the high-temperature resistant is above 180℃;

6. 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 1.