Although they work on the same wells, work in the same teams, petroleum geologists and engineers often suffer from a knowledge gap which can lead to costly errors, bad decisions, and delays. Here is a list of the “must-know” realities from both sides of the house: the geologists and the engineers. If each side can learn at least the rudiments in each of the topics, communication and decision-making can be significantly improved. In addition, efficient and/or innovative can be proposed and tested. Here are two brief lists of “must-know” realities for each group: Geology Realities Reservoir heterogeniety Sedimentology / depositional systems Stratigraphy Structure (faults / fractures) Fracture networks Pore architecture Nano-scale gas transport mechanisms Lithology / mineralogy Diagenesis Geochemistry of oil / fluids Gas fingerprinting Thermal maturation / kerogen typing Engineering Realities Reservoir drive Hydraulic fracturing design and execution Drilling fluid selection Proppant selection Hazard avoidance Reservoir compartmentalization Reservoir fluid behavior Pumps and lift systems Water management Geosteering Waterfloods / CO2 floods Logging While Drilling AAPG-SPE Reality-Based Reservoir Development Workshop / Sept 23 / Oklahoma City http://www.aapg.org/career/training/in-person/forums/details/articleid/20908/reality-based-reservoir-development-new-teams-techniques-technologies#1723102-details Created by Susan Smith Nash, Ph.D.

1. GEOLOGY
ENGINEERING
Reservoir
heterogeniety
Sedimentology /
depositional systems
Stratigraphy
Reservoir drive
Hydraulic fracturing
design and execution
Drilling fluid selection
Structure (faults /
fractures)
Fracture networks
Pore architecture
Nano-scale gas
transport
mechanisms
Lithology /
mineralogy
Diagenesis
Reservoir fluid
behavior
Pumps and lift
systems
Water management
Proppant selection
Hazard avoidance
Reservoir
compartmentalization
V E R S U S
MUST-KNOW RESERVOIR REALITIES
Geochemistry of oil /
fluids
Gas fingerprinting
Thermal maturation /
kerogen typing
Geosteering
Waterfloods / CO2
Logging While
Drilling
SUSAN SMITH NASH, 2015