Question

and the puru 1 3 A simple porous medium is composed of equal nonconduct- ing spheres, the packing of which is cubic, as shown in Fig. 1.32. The pores are filled with a liquid of resistivity R... a Determine the porosity of the rock. b. Calculate the formation resistivity factor of this rock. c. What is the cementation exponent, m, of this rock that would satisfy a relation of the form F=o-m? d. In what type of rock might the m calculated above apply? om in diameter

a,b,c,d

Answer 1

(m) porosity = volume og poeticles sobre end? Total volume cy partides= Nov. 4 (d)3 tolal volume = N persity of Not. 12 h ( ) J EN LET) 3. You Rexistiuity xx con ga desistance, A- alter of substance being measured. he length of substance Fea , Fe formation eesis tilta Phone Factor. where p = porosity az baxtissity factors 0.62-2.45. cementation foetos mc 110-.15- m . muchon knowledge of local parameters are enot ither the following values can be used:

m= 2.0, a= 1 577 NOU mdb 16 16 576 -m 4 - m . W0l IN4d37m. Nolo 24 ma 2 (01) Clean Sandstone.