Wedemic

Integration of Petrophysics & Core Analysis

Core-Log relations to obtain petrophysical parameters for improved productivity

0 STUDENTS ENROLLED

    In-House sessions are available upon request.

     

    Course Overview:

    Petrophysics is the study of physical and chemical rock properties and their interactions with fluids. Petrophysical measurements help other disciplines such as geologist, geophysicists and reservoir engineers understand the reservoir porosity, permeability, lithology and water saturation. Core analysis is used to define porosity, permeability, fluid saturation and grain density of reservoir rock. During this course, concepts of routine and special core analysis and core measurement methodologies, how to link log interpretation to core data, image logs (FMI) and NMR will be discussed.

    The petrophysical rock properties such as porosity, permeability, lithology and fluid saturations and porosity-permeability relationship, effect of cementation exponent “m” and saturation exponent “n” on water saturation in carbonate rocks under reservoir pressure and temperature will be studied. The measurements and physics of well logging tool fundamentals and log measurement environments, applications and log interpretation methodologies will be presented. The role of petrophysics in reservoir characterization study and its interaction with other disciplines will be demonstrated.

    This course will help to give the participants better understanding of log interpretation concepts including QC, log editing, environmental corrections, basic interpretation (deterministic method), advance interpretation (statistical method) and core-log integration for production optimization. The instructor will establish a case study from an undertaken field development carbonate formation study to illustrate core-log integration.

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    Course Objectives:

    • Understand concepts of routine and Special Core Analysis, measurement methodologies and application in petrophysics Understanding log and core responses in clastics and carbonates
    • Understanding carbonates digenesis and heterogeneity
    • Use petrophysical techniques for characterization of carbonate reservoirs
    • Carbonate challenge in petrophysics
    • Dynamic log interpretation techniques (clastics and carbonates)
    • Dynamic rock typing and permeability
    • Capillary pressure concepts and its applications in petrophysics
    • Shale volume calculation methodologies in radioactive shaly sandstone and radioactive carbonate reservoirs

     

    Specially Designed For:

    The course is designed for all professional with background and experience in petrophysics, whose role of job requires extensive knowledge of core and log concepts and integration. They include petrophysicists, geologists, geophysicists, geoscientists, reservoir engineers, petroleum engineers and other E&P professionals

    LESS

    Course Curriculum

    Day 1: Core Analysis
    Core Analysis Planning
    Core objectives 00:20:00
    Well-site planning 00:20:00
    Laboratory handling 00:20:00
    Core Acquisition
    Core inner barrels 00:20:00
    Wire-line coring 00:20:00
    Core preservation & fluid saturation 00:20:00
    Core handling 00:20:00
    Core Analysis
    Core quality & depth matching 00:20:00
    Core gamma 00:20:00
    Plug preparation, cleaning & fluid assessment 00:20:00
    Routine Core Analysis (RCA)
    Porosity 00:20:00
    Grain density 00:20:00
    Permeability 00:20:00
    Special Core Analysis for Petrophysics (SCAL)
    Formation resistivity factor and method 00:20:00
    Formation resistivity index and methods 00:20:00
    Cation Exchange Capacity and methods 00:20:00
    Effect of overburden & corrections 00:20:00
    Capillary pressure and measurement methodologies 00:20:00
    Day 2: Logging Requirements
    Concepts 00:26:00
    Logging Environments 00:26:00
    Open-Hole Logging Tools 00:26:00
    Lithology Tools 00:26:00
    Porosity Tools 00:26:00
    Resistivity Tools 00:26:00
    Spectral Gamma Ray Tool 00:26:00
    Advance logging program (wire-line & LWD) 00:25:00
    Log Interpretation Methodologies
    Basic Log Interpretation (Deterministic Method)
    Clay volume calculation 00:25:00
    Porosity and lithology determinations 00:25:00
    Water Saturation (formation water salinity, cementation and saturation exponents, saturation equations) 00:25:00
    Multi-mineral Log Interpretations (Statistical Method)
    Tool response equations 00:25:00
    Log re-construction, model error and log confidence factor 00:25:00
    Clay type, lithology, porosity, fluid and combined models 00:25:00
    Day 3: Core and Log Integration
    Effect of digenesis on rock texture
    Carbonate digenesis and heterogeneity 00:26:00
    Clastics and carbonates cementation factor (m) and saturation factor (n) 00:26:00
    Cementation factor (m) and saturation factor (n) from core 00:26:00
    Cementation factor (m) and saturation factor (n) from logs 00:26:00
    Effect of m on water saturation 00:26:00
    Secondary porosity 00:26:00
    Vuggs and fractures
    Prediction of vuggs and fractures from logs 00:26:00
    Prediction of micro porosity from NMR 00:25:00
    Tortuosity of carbonates 00:25:00
    Formation micro Scanner (FMI) 00:25:00
    Fractures from logs 00:25:00
    Vuggs from logs 00:25:00
    Dynamic log interpretation techniques 00:25:00
    Capillary pressure and J function 00:25:00
    Day 4:
    Permeability
    Permeability from core 00:36:00
    Porosity & permeability relationship 00:36:00
    Permeability from statistical analysis 00:36:00
    Permeability from FZI 00:36:00
    Permeability from NMR 00:36:00
    Rock typing
    Rock type from core 00:36:00
    Rock type from conventional logs 00:36:00
    Rock type from NMR 00:36:00
    Rock type from FMI 00:36:00
    Rock type from capillary pressure 00:35:00
    Advance coring program
    Case Study 1: Methodologies for calculation of shale volume in radioactive shaly sandstone reservoirs.
    Case Study 2: Methodology for variable m calculation from open hole logs in carbonate.
    Case Study 3: Methodology for advance interpretation of poor quality logs in carbonate reservoirs.

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    Hassan Aharipour has over 26 years of experience on petrophysics operations, exploration and development in Middle East and South America offshore and onshore clastics and naturally fractured carbonate reservoirs. He specializes in formation evaluation, core analysis and reservoir characterization. He held senior petrophysics positions in Iran National Oil Company, Shell Exploration & Production International Ltd. and Senergy (GB) Ltd. in United Arab Emirates. His most recent stint was at Petroleos de Venezuela S.A as a Senior Petrophysical Consultant. His petrophysical experiences includes open-hole and cased-hole log interpretation, NMR analysis, formation pressure analysis and fluid sampling, carbonate rock type using core and logs, saturation height function modeling using core and logs and petrophysical uncertainty analysis. Some of his major projects includes South Pars “North Gas Dome” PLNG with Shell Exploration & Production International in Dubai, UAE, Petrophysical consultancy for Korea National Oil Company (KNOC) for log interpretation of exploration wells in Bazian, Qush- tappe and Sangaw blocks, Northern Iraq, Kurdistan, Burgan reservoir characterization, IP software supporter for Middle East region with Senergy Ltd., and Western Venezuela offshore oil fields development project with Petroleos de Venezuela S.A. (PDVSA). Some of his international technical papers are follows: SPE-WVS-166 “Methodology for Advance Log Interpretation of Poor Quality Logs Multi-mineral Carbonate Reservoirs” Hassan Aharipour, DIGITOIL and Glerys García Riera PDVSA, SPE second South America congress, Porlamar Venezuela, 22-25 October  2013 SPE-180807-MS “Petrophysical Case Study of La Luna Unconventional Source Rock in Maracaibo Basin in Absence of Core and Geochemical Data” Hassan Aharipour,  Homai Well Services and Joanna Siciliano, LR Senergy, Trinidad & Tobago Port of Spain 13-15 June 2016 SPE-180961-MS “Characterization of Tight and Shale Unconventional Reservoirs from Logs” Hassan Aharipour, Homai Well Services and Mohsen Zeinali, Iranian Central Oil Fields Company (ICOFC), Argentina Buenos Aires 1-3 June 2016
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