Join the geoscientists who have been involved in building SEAM models, along with the teams that are using these large-scale Earth models and their simulated geophysical data in the research and development of leading edge technologies. Take the opportunity to learn about the application of advanced solutions for difficult exploration and development challenges, calibrated by using SEAM models as a realistic low-cost laboratory for testing new acquisition, processing and imaging methods, geomechanical deformations, 4D Monitoring, effect of production and injection in reservoir properties.
This workshop will facilitate in-depth discussions and the sharing of recent results and lessons learned in the advancement of emerging technologies for “Subsalt Imaging in Tertiary Basins”, for “Land Seismic Challenges”, for “Pressure Prediction and Hazard Avoidance” and for "Reservoir Monitoring”.
Researchers and geoscientists from a wide range of disciplines are expected to attend, representing a broad range of experts working on proposed technical topics. Leaders of industry and academia will discuss problems of common interest, with the objective of stimulating research and development of new complex models as well as providing industry benchmarks and an impact upon academic research and education.
We will discuss about each SEAM project and topics for future projects. From the highly successful SEAM Phase I, addressing challenges of deepwater subsalt imaging in Tertiary basins, with emphasis on the Gulf of Mexico; that gave the computational challenge in stages, starting with a purely acoustic-wave model with variable density, and proceeding through a quasi-acoustic tilted transversely isotropic (TTI) model to an isotropic elastic model. This Earth model, a realistic salt structure within a 60-block area represents a region 40 km x 35 km x 15 km in extent, with varying rock properties that produce complex imaging scenarios.
To the latest Time Lapse Pilot Project, which models 4D changes in pore pressure during a plausible production scenario. This project benefitted from the integrated work done between geoscientists and reservoir engineers. Modeling captures the evolution of pore pressure and its detectability by geophysical remote sensing during hydrocarbon production. The geologic and reservoir model chosen for the project covers an offshore region about 12.5 by 12.5 km in lateral extent and 5 km in depth and includes a series of stacked turbidite fans, part of the SEAM Phase I model of Tertiary Basins. One of the goals of the project was to advance the state of the art in realistic modeling of time-lapse studies by maintaining consistency in the representation of the underlying model in the different numerical simulations computing geophysical responses (seismic and non seismic), reservoir fluid flow, and geomechanical deformation. This is a small version of the ongoing Life of Field Project, planned to estimate the "inverse" problem of interpreting reservoir dynamics under conditions where everything about the reservoir is known. The subsalt clastic model for Life of Field is under construction and a carbonate model is under design stage. Models are resulting from an effort engaging reservoir engineers, geologists, petrophysicists, geophysicists, well-log analysts, and interpreters. Reservoir dynamics will be simulated along with the resulting well, geophysical and geomechanical responses.
SEAM Phase II, under the theme of “Land Seismic Challenges” focused on modeling land-seismic activity in a realistic way by incorporating a new set of challenges: from dealing with near-surface heterogeneity at scales from meters to kilometers, to incorporating a full range of elastic propagation physics, from surface-wave scattering and shear-wave attenuation to the general anisotropy of finely layered and fractured reservoirs. Three exploration models with corresponding classes of near-surface and subsurface features were defined. Each model has an appropriate reservoir.
The Barret model is 10 km x 10 km x 5 km and represents two types of unconventional reservoirs based on the Eagle Ford and Woodford shale plays in Texas and Oklahoma. The Arid model also cover 100 sq. km and contains features encountered in desert areas such as the Saudi Arabian Peninsula, with low-velocity surface sediments, outcropping strong refractors, buried topography, and karsts.
The Foothills model is 15 km x 12 km x 7.5 km and contains extreme topography typical of mountainous thrust zones, such as the Llanos Foothills in Colombia, with elevation differences of 500 m or more, as well as strong lateral and vertical velocity variations at scales comparable to exploration seismic wavelengths.
SEAM Pressure Prediction Project focused on“Pressure Prediction and Hazard Avoidance through Improved Seismic Imaging", evaluated and advanced on current methodologies for pre-drill pressure and hazard prediction. Industry experts prioritized current challenges in the use of seismic velocity models to construct pre-drill pore pressure forecasts for well planning. Challenges were used to design a comprehensive earth model and to simulate a benchmark data sets to be used by industry for quantifying risk and uncertainty associated with velocity models derived from current and future state-of-the-art in seismic acquisition, processing and imaging.
Invited speakers and attendees will be discussing topics such as, but not limited to Geology/Geological Modeling, Acquisition, Numerical modeling, Signal Processing, Imaging, Pressure Prediction in Complex Stress Regimes, Time Lapse (4D), Q Absorption, Reservoir Engineering, Implications of Geomechanics, Induced Seismicity, Microseismic, Scaling problems in Modeling and Simulations, Non-seismic modeling, and Modeling Carbonates.
We will embrace both theoretical and practical discussions of how model complex reservoirs to measure geophysical responses and their changes during production and injection.
In this workshop we ask what we have learned and what could be the next challenges to be modeled and simulated. Some of questions potentially addressed by workshop speakers are:
- “How does simulated data accuracy compares with real data?”
- “What is the real-world impact of geophysical and engineering reservoir modeling?
- “Where do we stand in 2017 and what are the next steps?”
- “Presence of Multiples at reservoir level. Which noise suppression technique will be appropriated to remove interbedded multiples without affecting reservoir amplitude response?
- “What are and will remain inherent limitations in modeling and simulations?
- “How Q values area changing as function of saturation and pressure?
- “What can we do with microseismic data in terms of reservoir characterization?
- “Can we integrate microseismic data into inversion workflow? What has been done so far? Which model will be the appropriate to learn more about usage of microseismic data? What has been done so far?”
- “To what degree are typical reservoir properties affected and can these changes be detected, measured, and quantified into additional valuable reservoir understandings by analyzing microseismicity indicators?”
- “What is the impact of facies complexity in carbonate models? How to model the effect of double porosity media during production?"