Extracted text: AVA araupp g A p u s A pup upp n. 1. Answer the following questions about porosity and permeability: a) Name three (3) parameters which are involved in calculation of porosity. b) Name four geological mechanisms affecting porosity values. c) Describe effect of sorting on porosity. d) Describe how porosity and permeability are associated with one another. e) Permeability is seldom uniform throughout a reservoir. Thus, it is necessary to ascertain an average value of permeability, kavg. Elaborate with suitable diagrams two (2) examples of permeability averaging techniques. f) Two sandstone reservoir formations designated A and B are located 1 km apart. Their properties are given in Table Q1(f). Outline FOUR (4) reasons for which reservoir B is commercially more viable than reservoir A.