D342 Compartmentalization and Connectivity in Sandstone Reservoirs
D342 Compartmentalization and Connectivity in Sandstone Reservoirs
Business Impact:The reservoir connectivity workflow taught in this course has proven successful in increasing field reserves by identification of new or underdepleted compartments, deeper oil/water contacts, oil columns in gas-dominated closures, and cross-fault flow or channel to channel reservoir flow that increases overall recovery.
The complex interplay of fluids and rock architecture controls efficient depletion of conventional sandstone reservoirs. Stratigraphic and structural analyses often provide much detail, but static and dynamic connectivity information reveal the elements that really matter to flow. This course uses fluid, pressure, log, seismic, and core data to examine the movement of reservoir fluids (oil, gas, water) over geologic and production timescales and determine which factors are critical in the development and exploitation of siliciclastic hydrocarbon reservoirs.
A virtual classroom course divided into 10 webinar sessions over a two-week period (equivalent to a five-day classroom course), comprising lectures, discussion, case studies, and practical exercises to be completed by participants during and between sessions. Exercises are keyed to specific reservoir types, different data density and vintage, different reservoir drive and recovery mechanisms. Short movies of numerical simulations are also utilized. In-class exercises that utilize Excel spreadsheets are provided to participants.
2. Static Connectivity
3. Dynamic Connectivity
4. Connectivity Input to reservoir engineering and simulation models
This course has been designed for geoscientists and engineers, petrophysicists, reservoir simulation experts and geologic modelers, or anyone who wishes to better understand reservoir performance.
A familiarity with development geology, reservoir engineering concepts and geological analysis of well logs is assumed, such as offered in Basic Application level courses N006 (An Introduction to Reservoir Engineering for Geoscientists), N008 (An Introduction to Reservoir Appraisal and Development) and N003 (Geological Interpretation of Well Logs).
Background
Dr. Snedden, project leader of the Gulf of Mexico Basin Depositional Synthesis (GBDS) Project, has over 25 years of industry experience with Mobil and ExxonMobil, including 11 years in research. John's technical specialties include sequence and seismic stratigraphy, sedimentology, reservoir characterization, reservoir connectivity analysis, and unconventional resource evaluation. He has worked in a number of basins, including the U.S. Gulf Coast, West Texas Midland Basin, North Sea, Mid-Norway, Barents Sea, Papua New Guinea, Arkoma Basin, Niger Delta, Sarawak (Malaysia), Mahakam Delta (Indonesia), U.S. Atlantic Shelf, Northwest Shelf Australia, Pannonian Basin (Hungary), South Caspian Sea (Azerbaijan-Turkmenistan), China, Norwegian Sea, Gulf of Mexico shelf and slope, North Caspian Basin (Kazakhstan), and the Lower Saxony and Ruhr-Muensterland Basins, Germany (unconventional, CBM, Shale Gas, Light Tight Oil).
John has published over 30 scientific papers: he is the first author on 23 of these. John has a history of leadership in technical societies such as SEPM and the Gulf Coast Section of SEPM. He has also served as technical chair of several large AAPG conventions. He is lead author of the book Gulf of Mexico Sedimentary Basin: Depositional Evolution and Petroleum Applications published by Cambridge University Press in November 2019.
Affiliations and Accreditation
PhD Louisiana State University, Baton Rouge, LA
MS Texas A&M University, College Station, TX
BA Trinity University, San Antonio, TX
Courses Taught
N043: Gulf Of Mexico Petroleum Systems
N342: Compartmentalization and Connectivity in Sandstone Reservoirs
N343: Depositional Evolution of the Gulf of Mexico Sedimentary Basin
N349: Practical Methods for Sequence Stratigraphic Prediction
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