This coring operations reference handbook is intended as a practical
guide for the logging geologist to procedures, activities, and
responsibilities required when bottomhole or sidewall coring is
performed at the wellsite. Not all of the operations described are
common practice in all logging units; however, familiarity with them is
a necessary part of general ex- ploration knowledge and professionalism.
Chapter 1 discusses the concepts of porosity, permeability, and
saturation, how these properties are determined in core analysis, and
their significance in controlling rest: rvoir performance. Chapter 2
deals with the various techniques used in coring. Chapter 3 ex- plains
the routine role of the logging geologist in core retrieval, sampling,
and qualitative evaluation. Chapter 4 details operating procedures for
quantitative wellsite core analysis equipment. 1 INTRODUCTION 1. 1
GENERAL 1. 2 QUANTITATIVE CORE ANALYSIS The primary purpose of coring is
to obtain rock samples of a sufficient size to obtain estimates of
critical reservoir properties.