PETE 1010 Chapter : Porosity Fluid Saturations
Document Summary
= total pore volume in a sample of rock total volume (pores + solids) of the sample. Porosity, as defined in the oil industry, usually refers to effective porosity. Effective porosity: the percentage of the bulk volume of a rock sample that is composed of interconnected pore spaces that allow the passage of fluids through the sample. 2,000,000 *30 = 6 * 107 cu ft. Suppose that geologist/engineers discover a reservoir that has an areal extend of 2 million sq. ft. , with a pay zone thickness of 30 ft. The following are steps to calculate the volume of pay: If the porosity of the sand is 0. 2, the pore volume available for fluids is. If there is no other fluid, other than oil, then 12 * 106 cu ft is the volume of oil in place. Oilfield sandstone values typically range from 5% to 30% porosity. 0. 2 * 6 * 107 = 12 * 106 cu ft.
