Capillarity controls the initial distribution of fluids in a producing reservoir and impacts decisions on well completion and production. Understanding the physics and experimental techniques to determine capillarity are essential for engineering reserves and recovery applications. Experimental techniques and models are developed to characterise and describe the fundamental principles of capillarity and pore structure. The laboratory results are integrated with logs and used with examples for saturation height modelling, petrophysical rock typing, reserve estimation and evaluation of fluid transport mechanisms and recovery models.
Course Level: Skill Instructor: Jim Funk
Designed for you, if you are...
A new or experienced reservoir engineer, petrophysicist or geologist working in formation evaluation and geo-cellular or reservoir engineering modelling
How we build your confidence
With discussions of the physics and reservoir measurements and manifestations of capillarity you will learn the details of the various laboratory techniques to define pore structure and pore geometry. You will use examples of NMR, mercury injection and porous plate results for various lithologies to analyse the different capillary models. You will then use rock type classification based on hydraulic radii and Thomeer parameter models to establish saturation height functions as exercises.
The benefits from attending
With the laboratory tools and log examples your skills in reviewing and applying fundamental capillary pressure relationships will be improved. You will set to illustrate the application of capillarity to formation evaluation and reserve assessment and to evaluate and explain difference between fluid contacts and free fluid levels.
Physics of capillarity - Laboratory measurement techniques - Pore structure and rock types - Interfacial tension and surface forces - Wettability, relative permeability and interfacial area considerations - Log comparable techniques of resistivity and nuclear magnetic resonance
Saturation Height Functions and Capillary Displacement - Free water level (FWL) and oil-water contact (OWC) - Corrections and conversions of measured Pc data - Curve fitting and smoothing - Log measurements and other applications