Exploration is a vital part of the oil and gas industry, enabling future production levels to be maintained as fields deplete with time. How then do we explore? This play mapping course provides the hands-on tools for your company’s future explorers. This is a practical foundation course with real world examples, exercises and experience garnered in both clastic and carbonate terrains from around the world. This course is designed to develop the participants' knowledge of the various forms of geological data and establish methods to integrate this data and construct play maps. These play maps in addition to simple exploration statistics are then used to develop exploration strategies.
Course Level: Foundation / Skill Instructor: Chris Cubitt
Designed for you, if you are...
A geologist, petrophysicist, geophysicist or reservoir engineer who has some experience in hydrocarbon exploration, but wants to know how GDE-based play mapping is practically done and to see how this technique is linked to exploration strategies
Some geological knowledge is assumed, however previous experience with oilfield data or interpretation methods is not required.
How we build your confidence
This is a ‘hands-on’ team-based course using real data (well logs, seismic screen grabs well correlations, core etc.) along with ‘real world’ examples
Play maps are paired with exploration blocks with teams nominating which blocks would be high graded or downgraded
By the end of the course you will feel confident in your understanding of:
What petroleum systems and play maps are
The key elements of the petroleum system, reservoir, source, seal, trap and timing
How to identify key reservoir and source depositional environments using core logs and wireline log motifs
The hydrocarbon habitat and the stages of exploration, exploration, appraisal and production
How the geology and geophysics team decides where to look for hydrocarbons
How to organise well data and correlate wells
How to construct gross depositional environment (GDE) maps
How to make play maps from GDE maps
How to make geological common risk segment maps and formulate play maps from GDE maps
Prospect, risking and exploration analysis including field size distribution, yet to find and success rate formulation
Exploration decision making using a matrix approach
Post exploration: appraisal and development geology overview
Petroleum systems / play maps - Using regional geology to define basin type (review of main basin types), source and reservoir distribution - Data preparation and organisation - Defining stratigraphy relative to geological data - Dry hole analysis - Gross Depositional Environment (GDE) mapping
Common Risk Segment (CRS) mapping
Basic petroleum exploration - Play systems - Depositional systems - Source rock distribution - Reservoir quality
Well data organisation - Well correlation - Organise poorly presented and inconsistent data - Confirmation formation tops? Are there errors? - Where is my play level?
Mapping - Construct GDE maps in clastic and carbonate settings from organised well data - From the GDE maps play and then CRS / play maps are produced
Exploration statistics analysis - Regional geology and region ranking theory (success rate, FSD, yet to find)
Appraisal and development geology - What happens after a commercially successful exploration well is drilled? - An overview of appraisal and development geology