Assessing Volumetric Uncertainties with the Simulations
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Price: Euros 1650/participant
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Objective
Geostatistical simulations are recommended for the calculation of GRV, HCPV and STOIIP / GIIP, rather than using only a BTC scenario. The objective is to provide participants with a sound understanding of the main geostatistical simulation algorithms, involved when characterizing uncertainties during volumetric estimations.
Key features
The course emphasises the optimal use of wells and seismic data for generating a distribution of expected volumes and hydrocarbon reserves.
Who should attend
Geologists and geophysicists involved in development decisions and risk analysis of reservoir volumetric and reserve evaluation. A basic understanding of geostatistics is required (variograms & kriging).
Course content
- Why use a geostatistical simulation method to compute hydrocarbon reserves, rather than use an interpolation method such as kriging?
- General overview of geostatistical simulation methods.
- Pros and cons of geostatistical simulation techniques: Turning Bands and Sequential Gaussian.
- Integration of Seismic data during the simulation process: External Drift Simulation and Collocated Cosimulation.
- Accounting for the uncertainty of the OW and GO contacts.
- Determination of the spill point and its effect on the reservoir closure.
- How to account for uncertainties in the reservoir size and in petrophysical properties.
- Identification of optimistic, most - likely, and pessimistic scenarios.
Half of the course is dedicated to a complete application on a real gas reservoir using Isatis.
Prior knowledge of basic geostatistic (variogram, kriging and cokriging) is recommended.
This course may be scheduled for another date and/or location. Tailored courses may also be organized on client demand. Please contact your sales representative to request more information.
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