Subject Code & Name: PE25403 – Well Logging and Formation Evaluation
Regulation: R-2025
Semester: IV (Fourth Semester)
Branch: B. Tech. Petroleum Engineering (Petrol)
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- To enable the students to understand the concept of formation evaluation and well logging and techniques involved in it.
Full Unit-wise Syllabus
Note: the official PDF prints Unit V without a unit title, and the Unit I heading as “Introduction to Well Logging and Formation”; both are reproduced as printed.
Unit I – Introduction to Well Logging and Formation
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
Activities: Discuss formation parameters and relationship. Numerical estimation of factors
Unit II – Well Logging Instruments
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.
Activities: Virtual demonstration and working principles of well logging instruments
Unit III – Annalysis of Log Data
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.
Activities: Use of Open Source softwares for interpretation of log data
Unit IV – Sub-Surface Analysis
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.
Activities: Literature survey and analysis of well logs
Unit V
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.
Activities: Numerical simulation of reservoir parameters
Course Outcomes (COs)
- CO1: Explain the principles, objectives, and applications of well logging in subsurface formation evaluation.
- CO2: Apply the concepts and operational procedures of various geophysical logging techniques for data acquisition.
- CO3: Analyze qualitative and quantitative well log data to determine formation and reservoir properties.
- CO4: Evaluate well log responses for the exploration and characterization of metallic and non-metallic mineral deposits.
- CO5: Characterize subsurface formations and reservoir zones through integrated interpretation of well log data.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Assignments (20%), Quiz / MCQs (20%), Solving of Competitive type exam questions (20%), Internal Examinations (40%)
Source: Official Anna University – B. Tech. Petroleum Engineering R-2025 Syllabus
Last Updated: October 2026
Comments
Post a Comment