A slope method of determining absolute resistivity for Schlumberger electrode configuration
Tóm tắt
A formula has been devised and tested for determining the absolute resistivities of subsurface layers. Three case studies have been made for testing the validity of the formula. The absolute resistivities, have been determined from the slope of the segments of the curve and calculated by intercept method. The depths of the subsurface layers obtained from the intersections of the segments of the curve, agree fairly well with depth of interfaces shown in the bore hole data sections.
Tài liệu tham khảo
G. F. Tagg,Interpretation of resistivity measurements, AIME. Trans.,110, (1934), 135.
I. Roman,Some interpretation of earth resistivity data, AIME Trans.,110, (1934), 183.
W. W. Wetzel andH. V. McMurry,A set of curves to assist in the interpretation of the three layer resistivity problems, Geophysics,2, (1937), 329.
H. M. Mooney andW. W. Wetzel,The potentials about a point electrode and apparent resistivity curves for a two-three and four layered earth, Minneapolis, University of Minnesota Press (1956), 146.
R. W. Moore,An empirical method of interpretation of earth resistivity measurements, AIME Tech. Publ. N. 1743 (1945).
V. V. J. Sharma,An extension to Moore's method of interpretation of earth resistivity measurements, Trans. Soc. Mining Engrs. (1963), 337.
J. N. Hummel,A theoretical study of apparent resistivity in surface potential methods, AIME Tech. Publica N. 418, (1930).
P. V. Shanker Narayan andK. R. Ramanujacharya Short Note:An inverse slope method of determining absolute resistivity, Geophysics32, (1967), 1036.
G. V. Keller, Discussion,An inverse slope method of determining absolute resistivity (P. V. Shanker Narayan) with reply by author Geophysics33, (1968), 843.