- Vicky Kroh
- Education Registrar
+1 918 560-2650
- Debbi Boonstra
- Education Coordinator
+1 918 560-2630
- Education Department
- Toll Free (U.S. and Canada) +1 800 364 2274
Consolidate your training at an AAPG Education Conference. Choose between
Fall and Winter.
Fluvial Stratigraphy, Sequence Stratigraphy, and Reservoir Connectivity
- INSTRUCTOR :
- John Holbrook, Texas Christian University, Fort Worth, TX
- INSTRUCTOR LOOKUP
- June 5 - 7, 2013
- Buenos Aires, Argentina
Sign Up Now
Includes course notes and refreshments. No refunds for cancellations after May 6, 2013.
- 50 people
- 2.2 CEU What is a CEU?
Who Should Attend
Geologists, geophysicists, and engineers seeking techniques for improved subsurface mapping and more accurate prediction of lithology/porosity distribution within fluvial reservoir intervals that are depicted in seismic, borehole, and outcrop data sets. Concepts are taught from base principles so no prerequisites are required. This course is also designed for those seeking techniques for improved subsurface mapping and prediction of lithology distribution within siliciclastic reservoir intervals. The course teaches sequence stratigraphy as a tool for interpreting seismic and borehole data from slope, shelf, coastal, and/or continental deposits. An entry-level understanding of these depositional environments is anticipated.
Upon completion of the course, participants will gain an overview of the river processes that generate strata as well as acquire a range of techniques for mapping and interpretation of fluvial rock. They will also gain an understanding of sequence stratigraphy. Integrated in both is an understanding of reservoir connectivity.
Participants will attain the following skills.
- Relate surficial fluvial processes to specific rock units.
- Evaluate fluvial preservation in a “river-to-rock” context.
- Quickly recognize fluvial lithofacies in core and outcrop.
- Identify and constrain dimensions of reservoir (e.g., bars, channel belts, etc) and non-reservoir (e.g. lake, floodbasin, etc.) architectural elements in well-logs, core, seismic, and outcrop.
- Place reservoir elements into their correct position within the fluvial architectural hierarchy (e.g. channel-fill vs. channel belt vs. valley fill).
- Improve reservoir evaluations through a gained understanding of the relationships between locally preserved net to gross and broader basin processes.
- Estimate heterogeneity and connectivity between and within reservoirs.
- Correlate fluvial strata at the basin scale.
- Identify and correlate sequence-stratigraphic surfaces in seismic and borehole data sets for purposes of subdividing reservoir systems into high-resolution sequence-stratigraphic units
- Develop predictions for distribution of reservoir vs. non-reservoir facies from distribution of sequence-stratigraphic units interpreted from borehole and seismic data sets
- Interpret and predict variations in reservoir stratigraphic architecture between different fields, pay intervals, and prospects through a newly gained understanding of the natural variations typical of sequence depositional controls
- Relate outcrop and modern analogs of sequence deposition to subsurface sections
- Improve production evaluations through a better understanding of reservoir dimensions and porosity structure
The course will cover the full range of topics needed to identify, correlate, and interpret fluvial reservoirs and encasing non-reservoir units. Participants will gain the foundations for understanding and predicting the geometry, connectivity, and permeability trends of fluvial reservoir systems at the scale of boreholes, fields, and basins. To accomplish this, the course is subdivided into six components that each convey a specific aspect of fluvial stratigraphy and each build sequentially upon knowledge gained from the preceding components. These components are, in order, fluvial geomorphology, fluvial facies, fluvial architecture, seismic geomorphology, heterogeneity and connectivity, and correlation. Fluvial geomorphology provides a background for understanding the flow dynamics, basin processes, and accommodation conditions that dictate formation and preservation of reservoir units. In fluvial facies participants will learn the skills needed to recognize and distinguish the sediments unique to each of the common fluvial depositional environments. Fluvial architecture will provide insights into the origin, geometry, and lithofacies typical for each of the common reservoir (e.g. bars, etc.) and non-reservoir (e.g. abandoned channel fill, etc.) elements within fluvial sections at all levels of the fluvial hierarchy (i.e. channel-scale, vs. belt scale, vs. valley scale). In this section we will also explore controls on spatial arrangement of these elements as well as techniques for their correlation in borehole logs. Seismic geomorphology will address common techniques for identification and mapping of reservoir elements in 3-D seismic data. In the heterogeneity and connectivity section, we will explore the depositional processes that generate heterogeneity within fluvial reservoirs as well as the processes that connect discrete reservoir elements to each other. We will also identify some useful techniques and statistics for predicting heterogeneity and connectivity within fluvial reservoir systems. Lastly, we will review the various techniques that may be used to correlate fluvial strata at the basin scale.
Further, the course will cover the full range of topics needed to develop a foundational understanding of siliciclastic sequence stratigraphy and to apply this skill to practical reservoir interpretation. The first part of the course will cover fundamental concepts in sequence stratigraphy and application of sequence stratigraphy to seismic data sets. This part will also address historical development of sequence stratigraphy as an interpretive tool. This part will also teach basic principles and stratigraphic components of the sequence stratigraphic model, including: processes generating systems tracts and parasequences, lapping relationships, recognition of sequence stratigraphic surfaces and systems tracts within seismic data, and predictability of porous and non-porous facies distribution in marine and fluvial units. In this part we will also expand upon the fundamental controls on sequence deposition through discussion of accommodation, sediment supply, cyclisity, and basin physiography. Imparting this added insight into the origins of sequences is intended to provide a basis for understanding and predicting variations in sequence architecture between pay intervals and fields. The second part of the course focuses directly on the recognition and correlation of sequence stratigraphic surfaces in borehole and outcrop data sets. We will examine the facies, wireline, and lapping character of the approximately nine sequence stratigraphic surfaces commonly used to correlate sequences and to subdivide sequences into higher-resolution systems tracts. We will explore lateral variations and correlation of these surfaces as well as evaluate contrasting interpretive value of these different surfaces. Lastly, we will analyze the relative utility of the contrasting sequence-stratigraphic approaches currently available (i.e. depositional sequence stratigraphy, genetic sequence stratigraphy, T-R sequence stratigraphy).
Sponsored by YPF
Organized by AAPG and AAGGP