Seismic data filtering and depth conversion with geostatistics | Training course
Understand and master the use of geostatistics for reliable time-to-depth conversion and comprehensive uncertainty analysis of reservoir volumes.
Objective
- Understand and implement geostatistics to build robust reservoir structural models.
- Improve seismic data quality with geostatistical filtering.
- Make the best use of all available data to achieve robust time-to-depth conversion.
- Perform quantified uncertainty analysis on traps and reservoir volumes.
Outlines
- Half of the course is devoted to theoretical and methodological presentations, the second half to practical exercises on real-life cases to deepen the understanding of concepts. The focus is on illustrations and practical contributions of the covered concepts.
- Computer exercises with Isatis.neo Petroleum Edition with workflow.
- Individual work reviewed and corrected by the trainer during online courses.
- Course material provided (documentation, journal files, training data, worked examples) for re-use in your workplace.
Who should attend
This course aims at geophysicists involved in data interpretation and mapping of surfaces limiting the reservoirs.
Content
SESSION 1: QC AND FILTERING
- Quality control of seismic data
– Identify possible data outliers, anisotropies, trends, etc.
- Understanding and filtering of several artifacts (noise, footprints, acquisition artifacts)
– Quantification of the spatial variability: calculation, interpretation, and modeling of the variogram.
– Seismic filtering by kriging (2D/3D): principles and properties.
SESSION 2: TIME-TO-DEPTH CONVERSION
- Multivariate geostatistics for time-to-depth conversion
– Integration of seismic data or velocity model parameters and wells information in the interpolation. Analysis of the correlations between variables. Multivariate variogram. Co-kriging.
– Multi-layer approach and Bayesian techniques to reduce the uncertainties.
SESSION 3: UNCERTAINTY ANALYSIS
- Uncertainty quantification
– Introduction to the conditional simulations for uncertainty quantification.
– Difference between kriging and conditional simulations. - Trap analysis and volumetrics
– Probabilistic maps.
– Risk analysis. - How to find the best model
– Introduction to Geostatistical Inversion.
SESSION 4: EXERCISES WITH ISATIS.NEO AND CONVERSIONS & UNCERTAINTIES WORKFLOW
Prerequisites
As the course refers to advanced geostatistical concepts, it is highly recommended that attendees have a reasonable knowledge of variography and kriging.
The course “Data Analysis and Property Modeling with Geostatistics” covers the fundamental concepts of geostatistics for Oil & Gas and provides an ideal basis to this course.
You can practice further with Isatis.neo Conversions & Uncertainties Workflow by attending the course “Seismic Time-depth Conversion in Practice”.
Upon request
Training – Registration policy
Qualiopi label, a guarantee of the quality of our training
Our training courses are Qualiopi certified. That means that they comply with a unique French national quality reference system. This recognition guarantees the quality of the training courses we deliver and allows our trainees to be eligible for various French funding.
Registration Fee
Class fees include one set of course materials and one full Isatis license valid for one month.
Attendees are invited to use their own laptop for computer exercises. A temporary demo version of the software package(s) used for this purpose (i.e. Isatis, Isatis.neo or Kartotrak) will be freely supplied by Geovariances.
For courses to be held in Geovariances only, if you are unable to bring your own laptop during the training session, be sure to inform your sales contact and Geovariances will endeavour to provide you with a computer for the session duration.
Please note that admission will be only confirmed on receipt of your formal purchase order and after full payment.
Payment
Geovariances will invoice your company for the approved course cost amount in full unless cancellation notice has been given 10 working days before the course date.
Payment is required prior to the course to confirm the registration.
Payment options: credit card (American Express is not accepted – please provide with your card details) or wire transfer to BRED Fontainebleau HDV – IBAN number: FR76 1010 7003 2700 0302 7055 623.
Venue
Courses can be organized in or outside Geovariances premises (hotel, client premises). Please refer to the course description for more details.
Training hours are from 9:00 am to 5:00 p.m. unless otherwise specified.
Accomodation
Fee does not cover hotel accommodation. Attendees should make their own reservations directly.
Cancellation
No refund will be made for cancellation notified by a registered participant to Geovariances within 2 weeks (10 working days) prior to the course or for ’no shows’.
Attendee can be substituted.
Geovariances reserves the right to cancel a session if the minimum number of registrations is not reached and to schedule an additional session if the number of registrations is in excess of the maximum number of attendees.
Queries
Should you have any question or need further information, do not hesitate to contact us.