A group of industry experts have compiled their years of experiences in developing a new technical standard to measure stimulation and gravel-pack fluid leakoff under static conditions. This method details step-by-step procedure for making fluids and measuring leakoff under static conditions. Stimulation and gravel-pack fluids are defined for the purpose of this technical standard as fluids used to enhance production from oil and gas wells by fracturing or acidizing and fluids used to place filtration media to control formation sand production from oil and gas wells, respectively. The procedure considers filter paper medium, natural core and synthetic core as the three filtering options. The paper also includes step-by-step example calculations of viscosity controlled leakoff coefficient and wall building coefficient.

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