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|AAPG Members||$1,795||$1,995||Non Members||$2,095||$2,295|
Geopressure Predictions and Exploration Risk
- INSTRUCTOR :
- Selim Simon Shaker, Geopressure Analysis Services (G.A.S.), Houston, TX
- October 14 - 15, 2013
- Norris Conference Center, City Centre Location, Houston, Texas
(if purchased individually)
Registration for the entire week is $1,795 for members, $2,095 nonmembers. Goes up to $1995/$2295, and/or individual course prices increase by $50/course day on 9/16/2013. Course notes, refreshments and lunch buffet included.
No refunds for cancellations after 9/16/2013.
- 1.5 CEU What is a CEU?
Who Should Attend
This course is intended for geoscientists, engineers, and managers who need an introduction and in-depth understanding of the vital relationship between geopressure compartmentalization and prospects risk assessment. It is appropriate for those who are prospect generators, geologists, geophysical interpreters, economic visibility analysts, drillers and producing engineers. This is a cross-discipline course between geology, geophysics, geomechanics, hydrodynamics, well logging, mapping, drilling, production and risk assessments.
Participants completing this course should be able to:
- Understand the importance of the subsurface pore pressure development in relation to hydrocarbon generation, migration, and entrapments.
- Describe the mechanics and causes of subsurface partitions and the geological setting that leads to seal failure.
- Grasp and explore the different methods of measuring reservoir pressure.
- Understand the processes and theorem of predicting the seal pore pressure before and while drilling.
- Understand the impact of geological paleo-environment and sedimentation pattern on the pressure compartments from the shelf, slopes, salt basins, and deep water to the frontier thrust belt.
- Establish the prospect geological building blocks to explore the pressure’s disparity between seals and reservoirs.
- Estimate reserves volume, driving mechanisms, potential productivity and secondary recovery based on the subsurface compartmentalization.
- Assess the risk of the prospect’s different structural segments based on the logs analyses from the offset wells.
The subsurface geopressure partition is the most important pillar of establishing and assessing a potential fair-way, play and prospect in any exploration and production portfolio. Subsurface pore pressure prediction establishes the seal effectiveness and hydrocarbon retention capacity. Moreover, it dictates the mud and casing programs that should be used to drill the prospective wildcat borehole trajectory. Modeling the geological building blocks in association with the geopressure profile determined from the seismic velocities can foresee the trouble spots before drilling. Specific topics will include:
- Introduction to prospect’s assessment in relationship to subsurface geopressure.
- Causes of geopressure build-up and decay due to subsurface structural failure.
- Definitions and plots of fluid pressures, stresses, pore and fracture pressures.
- Pore and fracture pressure measurements.
- Quantifying and calculating the sealing capacity (exercise)
- Open hole pertinent measurements.
- Pore and fracture prediction methods from seismic, sonic, resistivity, mud logs and rock-mechanics properties and their calibration.
- Retention capacity and Oil and Gas columns estimation (exercise)
- Geopressure modeling before drilling including Casing seats and Mud weight programs.
- Calibration and appraisal during and post drilling.
- Reservoirs compartmentalization, transgression and regression.
- Causes of disparity between predicted and measured reservoir pore pressure.
- Deep water challenges and how to overcome the narrow drilling tolerance window.
- Supra and sub-salt emplacement and displacement's Geo-mechanics and their impact on trap integrity and drilling challenges.
- Reserve estimates in four ways vs. three way closures and their breach limits.
- Appraisal for the untested prospect’s segments based on the post drilling geopressure profile of the first wildcat.