The well-exposed outcrops of the Pyrenean foreland basins (PFB) in northern Spain offer a unique opportunity to observe a range of sand-rich, deep water (DW) depositional systems. During the early Lutetian time (Middle Eocene), the PFB area consists of a series of linked basins connected to the Atlantic Ocean to the west. These basins formed from the interaction of the African and European plates with the Iberian micro-plate during the Cenozoic, resulting in south-directed thrusting. The middle Eocene deposition in the PFB recorded the interaction of tectonics and sedimentation from shelf (Tremp Basin) to slope (Ainsa Basin) and basin (Jaca Basin). During the Middle Eocene, deposition occurred in piggy-back (wedge top) basins that shifted southward as the thrust faults progressed to the south. Rapid changes in local gradient along with high sedimentation and subsidence rates resulted in the vertical stacking of a progression of environments of deposition (EoD’s) with easy access and excellent exposures. These outcrops are analogous to hydrocarbon reservoirs explored and exploited in the Gulf of Mexico, West Africa, northern and eastern South America, The Black Sea and East Africa.
The 6-day course combines field activities with in-class lectures and exercises. Exercises in the field will focus on description of DW lithofacies, stratal geometries and recognizing key stratigraphic surfaces, emphasizing practical applications. Participants will also learn to describe cores, integrate core and well-log information with seismic to generate high-resolution EoD maps of reservoirs in different settings. Engineering data is used to demonstrate how to improve prediction of reservoir performance. Cores, well-logs and seismic examples are compared to and contrasted with outcrops to help participants to extrapolate 2-D outcrop information to 3-D views of reservoir scale depositional systems.
- Understand deep water sedimentological processes and the impact in reservoir architecture.
- DW lithofacies nomenclature and definitions and how to interpret them in cores, well logs and outcrops.
- How to describe DW lithofacies in cores and relate them to stratal geometries
- How to interpret key stratigraphic surfaces based on changes in lithofacies
- How to describe cores
- How to interpret DW EoD’s maps based on lithofacies associations, stacking and diversity
- How to use outcrop analogues and depositional models to better understand 3-D reservoir distribution.
- How to tie rock properties to facies in building geologic models
- How to integrate engineering and production data to improve reservoir performance.
- How to perform EoD mapping, emphasizing impact on reservoir performance and behavior
Interested in this course? Use the form below to inquire about your company’s next ACT-Geo workshop. We provide services worldwide and any course can be provided onsite at your location or at our Houston office.
Limit 25 persons max per workshop.