| Pressure Transient Analysis (PTA) A brief introduction is given to well testing and well test analysis methodology also referred as Pressure Transient Analysis. Well testing objectives as well as type of tests are presented. Reservoir and well information derived from pressure data analysis is emphasized and the methodology currently used for pressure transient analysis is presented. • Fluid Flow through porous media. Solutions • Flow regimens and Interpretation models • Pressure transient analysis methodology • Practical and advanced methods(deconvolution) • Minimum testing time to achieve objectives • Examples using software application Rate Transient Analysis (RTA) A brief summary is given to traditional decline curve analysis methods. Introduction of material balance time and advanced decline methods of analysis applicable to conventional and non-conventional reservoirs are discussed. • Reservoir flow capacity determination from transient rate analysis • Fetckovich, Blasingame and Arps models • Decline Curve Analysis • Models currently used; Arps, hyperbolic, exponential and Duong • Examples using software application Production System Performance (Part 1) The analysis of the production system, considering the impact of pressure drops taking place from the reservoir and through the completion, pipes and production lines, as well as other elements of the system is presented. • Inflow Performance relationship and well productivity index • Pressure drop calculation trough production and all components of the system considering multiphase flow • Pressure drop trough the well completion and VLP (Demand) • Transient and pseudo steady state IPR • Examples using software application Production System Performance (Part 2) The analysis considering the impact of artificial lift systems (mainly gas lift and ESP pump), as well as other elements of the well completion, in the value of actual production rate is presented. In addition, a brief summary is given to flow assurance concepts as well as the impact of sand and water production. • Flow pattern and calculation of pressure transverse • Gradient curves • Artificial Lift Systems (gas lift and pump) • Gravel pack • Flow assurance • Sand and water production • Examples using software application Non-conventional Reservoirs A brief summary is given to the modeling fluid flow behavior in non-conventional reservoirs. Methods for pressure and rate transient analysis applicable to horizontally fractured wells are presented. Decline curve analysis and the uncertainties in pore volume and reserves estimation are discussed. • Basic reservoir description • Reservoir and well model. Analytical and numerical solutions • Well completion; multistage hydraulic fractures • Present flow regimes and transient rate and pressure analysis • SRV (stimulated reservoir volume) • Geomechanics impact on well production • Examples using software application |