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Silicon Film-forming Agent for Drilling Fluid—JHSF 2014-01-23 12:00:56 
Introduction
It can bridge in the surface of formation rocks and form film in a short time to plug pore throats which haven’t been sealed by bridging and filler particles and fluid loss agent.
Main Features
- can react with multivalent ions in formation and then form film in the surface of formation rocks to plug pore throats;
- be good in thermal stability and resistance salt;
- the properties of inhibit shale swelling, hydrating and dispersing is better than metasilicate, potassium formate and polymer drilling fluid.
Usage
It can be added into drilling fluid, and the addition is 1%～3%.
Main Quality Indexes
ITEM
INDEX
extrinsic features
jonquil or brown tough liquid
pH
≥9.0
density /(g/cm3)
≤1.50
reduced rate of mud-making clay/ (%)
≥60.0
film forming rate of filter cake / (%)
≥20.0
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