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Petrophysics

Petrophysics

Pressure and Rate Transient Analysis (PTA/RTA) and Production System Performance

Pressure and Rate Transient Analysis (PTA/RTA) and Production System Performance

The Reservoir flow capacity and well productivity index can be derived from pressure transient analysis using data acquired during well testing. In the case of exploratory wells, testing rates as well as bottom hole pressures are acquired under a temporary well completion that consists basically of a production tubing and a separator (no flow lines), which may not be the final production system layout for the well.
Overview of SAGD Analytical Models and Their Assumptions and Limitations

Overview of SAGD Analytical Models and Their Assumptions and Limitations

This 1-day course is an introduction to Butler assumptions and mathematical principles and its limitations and also briefly discusses other studies which address steam assisted gravity drainage (SAGD) oil production and SOR evaluation. In this course there will be examples using Excel spreadsheets.
Advanced Well Test Analysis

Advanced Well Test Analysis

Well testing has been in place for over 50 years. The benefits of using this technology have been published in numerous technical articles. A popular method for pressure data interpretation has been published back in year 1950 by Horner and still today can be applied. Presently most of pressure transient analysis is carried out by commercial software which can handle quiet complex pressure data interpretation using analytical or numerical linear or non-linear solutions as well as considering permeability and porosity dependency on pressure for non-conventional reservoirs.