Drilling Fluid Aid High-temperature Resistant and

Drilling Fluid Aid High-temperature Resistant and Salt Resistant Fluid Loss Control Agent I. Description: FJ-1 is a lately developed product. Comparing with old products (the kind of lignite resin), FJ-1 is more scientific and advanced from raw materials to production processes and technical conditions. FJ-1 is more resistant to salt pollution. Within the whole range of change of salt concentration from 4% to saturated, when same dosage of FJ-1 is added instead, far better fluid loss control effect will be produced. FJ-1 is well compatible with other usual fluid aids and can be used in all kinds of water-base fluids, especially used in complicated geological cases such as high temperature, high pressure, high mineralization, etc. Generally, the dosage is around 2% (to be increased with special geological conditions) and is properly replenished each day as the drilling is going on.II. Quality Indexes:ItemIndexesAppearanceYellow or light yellow powderMoisture content %≤18PH6.0-9.0Fluid loss at room temperature and medium pressure, mlFresh water mud≤10Sodium chloride polluted mud≤15Fluid loss at high temperature and high pressure, mlFresh water mud≤25Sodium chloride polluted mud≤30Apparent viscosity,mPa.sFresh water mud≤20Sodium chloride polluted mud≤50