钻井液用固体润滑剂 石墨类

Solid lubricants for drilling fluids graphite

1. Product introduction

This product is a solid lubricant mainly made of graphite and compounded with a variety of surfactants through special process. It can form a firm adsorption film on the surface of drill bits, drilling tools and other tools, which can greatly reduce the wear of drilling tools during drilling and prevent differential pressure sticking accidents. The product has good lubricity and temperature resistance, and can inhibit the hydration and dispersion of clay and drilling cuttings, It has good compatibility and compatibility with various water-based drilling fluids and oil-based drilling fluids, has no effect on the rheology of drilling fluid, and has a certain filtering effect.

2. Product performance index

Item Index
Volatile matter, % ≤10
Density, g/cm3 2.0±0.4
Burning residue, % ≤15.0
Apparent viscosity change, mPa•s ≤5.0
Change value of filtration loss, mL ≤5.0
Reduction rate of viscosity coefficient of mud cake, % ≥45.0

3. Use guide

Recommended dosage: (1-2)% or according to actual demand.