Filtration Reducers
Reduce fluid filtration of water- or nonaqueous-based drilling fluids

M-I SWACO offers a complete line of chemicals used to reduce drilling fluid filtration and improve filtercake quality while drilling permeable formations.
Nonaqueous Polymeric Fluids
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ECOTROL F
Filtration-control additiveProvides tight HPHT fluid loss control at a low product concentration.
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ECOTROL HT
High-temperature filtration-control additiveHPHT fluid loss control in environments up to 500 degF [260 degC].
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ECOTROL RD
Filtration-control additiveReduces HPHT fluid loss at temperatures up to 375 degF [191 degC].
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MEGADRIVE F
Fluid loss control additiveSuitable for use in all paraffin-, mineral oil-, or synthetic-based drilling fluid systems.
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NOVATEC F
Filtration-control additiveImparts rapid reduction in HPHT filtration when used at relatively low concentration levels.
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ONE-TROL HT
High-temperature filtration control agentEffective alternative to asphalt and gilsonite where their use is undesirable.
Nonaqueous Particulate Fluids
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VERSATROL
Asphaltic resinSeal low-pressure and depleted formations.
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VERSATROL HT
High-temperature asphaltic resinFiltration control at ultrahigh temperatures.
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VERSATROL M
Asphaltic resinLow softening point for filtration control over large temperature range.
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VERSATROL M1
Blended asphaltic resinReduces HPHT fluid loss in all oil-based systems.
Water-Based Modified Natural Polymer Fluids
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POLYPAC ELV
Extralow-viscosity polyanionic cellulose additivePrimarily used in weighted systems to avoid uncontrollable viscosity buildup.
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POLYPAC UL
Ultralow-viscosity polyanionic celluloseControls fluid loss with minimal increase in viscosity in water-based muds.
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POLYPAC R
Polyanionic-cellulose filtration-control additiveControls fluid loss in freshwater, seawater, potassium chloride, and salt muds.
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M-I PAC R
Technical-grade polyanionic-cellulose filtration-control additiveControls filtration and increases rheology, especially effective in saltwater brines.
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M-I PAC UL
Ultralow-viscosity polyanionic-cellulose filtration-control additiveControl filtration with minimal increase in rheology and at all pH ranges.