OVER PRESSURE AND PORE PRESSURE PREDICTION IN OIL AND GAS BASINS

Training Date: 
Monday, February 26, 2018 - 09:00
Training Cost: 
₦500,000.00
Training Venue: 
Laser Engineering and Resources Consultants Ltd, KM 5 East-West Road, Behind Omega house, Rumuodara, Port Harcourt, River state.
Designed For: 
A geologist, geophysicist, engineer requiring a fundamental understanding of the principles and applications of pore and fracture pressure in addition to wellbore stability A wellsite or operations geologist wishing to advance his/her knowledge to an expert level
Training Specialization: 
Engineering/Project Management
Drilling/Subsurface
Health, Safety, Environment & Security
Quality Audit and Quality Assurance
Higher Professional Institutions
Academia/Research

**Over Pressure and Pore Pressure Prediction**

Safe drilling of wells requires a detailed prediction of pore pressures and fracture gradients. An accurate estimation of pore pressure and fracture gradient is essential for well planning activities, such as  preventing potentially catastrophic kicks and blowouts, provision of effective casing and cementing design. Hence pore pressure and fracture gradient analysis represents a key part in reducing drilling costs and optimizing drilling, both in the planning and operational stages of drilling a well. The following topics will be addressed: Processes responsible for abnormal pressure, Methods of pore pressure prediction and detection, Data requirements and how to deal with data gaps, Model calibration, Advantages and disadvantages of seismic and resistivity based pore pressure prediction, Real time updating and uncertainty analysis.

 

**COURSE CONTENT**

•     What are pore, fracture and overburden pressures?

•     Fundamentals of pressure, definitions and standard equations

•     Subsurface stresses and wellbore stability analysis

•     Borehole breakout identification and analysis

•     Overburden pressures and fracture pressures and how to calculate them

•     The importance of leak-off tests and how to interpret them

•     Role in well planning and casing placement

•     Pore pressure generation mechanisms and controls on distribution

•     Compactional mechanisms

•     Fluid expansion mechanisms

•     Centroid and pressure transfer

•     Normal compaction trends

•     Sonic, resistivity, density - advantages and disadvantages

•     Quantitative analysis methods, Ratio, Eaton and Equivalent Depth Methods

•     Predictive methods, seismic methods, basin modelling

•     Software used for evaluation

•     Good pressure evaluation practices, post well evaluation and archiving

•     Overview of HTHP wells and their challenges