Pre-gelatinized potato starch is a low viscosity fluid loss reducing agent. It is soluble in water.
Application:
* Fluid loss control agent
* Suspension agent
Typical Physical Properties
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Result after adding 15% formation water and rolling at 200 for 4 hours
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Result after rolling at 200 for 4 hours with fresh water
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Properties of 14 lb/bbl concentration potato starch
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150
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150
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Mud weight (PCF)
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65 ± 2
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72 ± 2
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Apparent viscosity (cPs)
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58 ± 2
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65 ± 2
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Plastic viscosity (cPs)
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15 ± 2
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18 ± 2
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Yield point (lb/ 100 ft2)
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4 ± 1
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5 ± 1
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Gel strength (10 sec)
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6 ± 1
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7 ± 1
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Gel strength (10 min)
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0.5 – 1
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0.5 – 0.9
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API water loss (ml)
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7 ± 0.5
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7 ± 0.5
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PH
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Nil
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Nil
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Sedimentation
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