Essentials of modern open-hole log interpretation / John T. Dewan

Author: Dewan, John T.
Published: Tulsa, Okla. : PennWell Pub. Co., c1983.
Physical Description: xii, 361 p. : ill. ; 23 cm.

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Contents

THE LOGGING ENVIRONMENT: The borehole -- Logging procedure -- The undisturbed reservoir -- Disturbance caused by drilling -- EVALUATION OF HYDROCARBONS: Fundamental interpretation relations -- The basic interpretation procedure -- Impact of invasion on resistivity measurements -- PERMEABLE ZONE LOGS: Spontaneous potential (SP) log -- The gamma ray(GR) log -- RESISTIVITY LOGS: Classification and application -- Dual induction-spherically focused logs -- Dual laterolog-Rxo logs -- POROSITY LOGS: Compensated density and litho-density logs -- Compensated neutron and dual porosity neutron logs -- Compensated sonic and long-spaced sonic logs -- Electromagnetic propagatlon-microlog combination -- CLEAN FORMATION INTERPRETATION: Resistivity-porosity crossplots -- Multimineral identification -- SHALY FORMATION INTERPRETATION: The nature of shale -- Shale or clay distribution in shaly sands -- Shaly sand interpretation models -- Cation exchange capacity -- Shale porosity and conductivity -- Application of the dual-water method to shaly sands -- Summary of dual water interpretation -- Summary of earlier shaly sand interpretation methods -- PREDICTION OF PRODUCIBILITY: Flow relations -- Absolute, relative, and effective permeabillties -- Irreducible water saturation -- Estimation of permeability from logs -- The multiple formation tester -- WELLSITE COMPUTED LOGS: The Rwa log -- Porosify overlays -- Resistivify overlays -- The SP overlay -- The Cyberlook log -- The Prolog analysis -- Office-computed logs -- RECOMMENDED LOGGING SUITES: Fresh mud, medium-to-soft rock logging suites -- Hard-rock, salt-mud logging suites -- Special situations.

Subject(s)

Geophysical well logging

ISBN

0878142339

Bibliography Note

Includes bibliographical references and index.

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