PE6502 - WELL LOGGING (Syllabus) 2013-regulation Anna University

PE6502 - WELL LOGGING (Syllabus) 2013-regulation Anna University

PE6502 WELL LOGGING  LPTC
3003

OBJECTIVES:
To enable the students to understand the concept of formation evaluation and well logging and techniques involved in it.

UNIT I 9
Aims and objectives of well logging. Reservoir formations. Borehole conditions. Fundamental concepts in borehole geophysics physical properties of reservoir rocks. Formation parameters and their relationships: formation factor, porosity, permeability, resistivity, water and hydrocarbon saturations, and movable oil. Archie’s and Humbles equations.

UNIT II 9
Principles, instrumentation, operational procedures and applications of different geophysical logs: S.P., electrical, induction, nuclear, sonic, caliper, temperature, dip and direction. Natural gamma ray spectrometry log, nuclear magnetic log, litho density log, neutron activation technique, thermal neutron decay time log, chlorine and oxygen logs.


UNIT III 9
Recording, transmission and processing of log data. Formation evaluation for hydrocarbons. Qualitative and quantitative interpretations of well log data. Overlays and cross-plots. Determination of reservoir parameters – porosity, resistivity, permeability, water and hydrocarbon saturation, movable oil. Lithology determination by neutron, density and sonic cross-plots, dual mineral method, triporosity method, litho porosity cross-plot (M-N plot), clean sand and shaly sand interpretations.

UNIT IV 9
Sub-surface correlation and mapping from log data. Delineation of fractures from logs. Production logging. Well logging for metallic and non-metallic minerals: radioactive and non- radioactive evaporates, coal, sulphur. Borehole geophysics for groundwater exploration. Effective pay thickness of an aquifer. Saline water-fresh water interface from log data. Determination of groundwater flow direction by logs.

UNIT V 9
Theoretical computations of normal and lateral log responses. Identification and delineation of sub-surface formations from well log data. Calculation of reservoir parameters: formation factor, porosity, permeability, resistivity, water and hydrocarbon saturations, and movable oil. Sub- surface correlation of formations and interpretation of field data.

TOTAL : 45 PERIODS

OUTCOMES:
Students able to understand the physical principles of the tools used in logging. They can characterize the formation based on interpretation of well logs

TEXT BOOKS:
1. Standard Handbook of pertroleum and Natural Gas Engineering. 2nd Edition. William C Lyons, Gary C Plisga. Gulf Professional Publishing.
2. D.P Helander ‘Fundamentals Of Formation Evaluation’
3. Dewan.J.T ‘Essentials of Modern Open-Hole Log Interpretation’ Pen Well Books, 1983, ISBN 0878142339.

REFERENCE
1. Serra.O ‘Fundamentals of Well log Interpretation’ Volume1. Elsevier Science Publisher, New York, 1984,ISBN 04441327.
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