Objective

To achieve a sound knowledge of the basics where the analysis of production decline and pressure transients in unconventional reservoirs - Vaca Muerta, particularly - is based upon. A thorough analysis of the flowback period is provided, given its importance in the appropriate selection of holes  in order to minimize the damage on fractures, as well as ensuring the expected recovery.

‘Topaze’ and ‘Saphir’ applications (Kappa workstation) are presented in order to optimize the learning with interpretation examples based on field cases. However, it is not necessary to have these programs to take the training course.

Unconventional Reservoirs

 

- Shale oil and Shale gas

- Multi-fractured horizontal wells (MFHWs)

- Reservoir models. Analytical and Numerical Methods

- Stimulated Reservoir Volume (SRV)

- Effective strength

- Geomechanical considerations

- Well completion configuration. Simple or Complex

- DFIT test (mini-frac test)

- Field examples

 

 

Flowback and Production Decline

 

- Introduction to Flowback Testing

- Induced fracture damage

 - Analysis methods (RPI - Reciprocal Productivity Index)

 - Choke management

- Decline analysis .

- Arps equation, Hyperbolic Function and Modified Hyperbolic Function

- Exponential function and Stretched Exponential Function. Logistic growth model.

- Flow transient analysis (RTA – rate transient analysis)

- Linear flow diagnostics and Blasingame graphical representation

- Field examples

Giovanni Da Prat, Ph.D.

 

Giovanni Da Prat is a petroleum engineer with a broad experience in the methods for pressure test interpretation, [well] production decline and reservoir engineering applicable to conventional and unconventional reservoirs. With over 35 years’ experience and more than 15 years as an independent consultant for international oil and gas operators.

 

Giovanni has a Ph.D. in Petroleum Engineering (1981) and a Master’s Degree in Geophysics (1977), both from Stanford University, California.

 

Before working as a consultant, he was a Reservoir and Production Engineer for PDVSA, Schlumberger and Halliburton. (1982-1999)

 

He is an instructor of the SPE (Society of Petroleum Engineers), for the training course ‘Well Testing - Getting the Objectives Right’ and for Schlumberger’s course ‘Advanced Optimization of Hydrocarbon Production’, included in its NExT program.

 

Giovanni has trained more than one thousand professionals of the oil and gas industry worldwide. He is an author and coauthor of over 100 technical Papers, most of them published by the SPE. He is the author of the book ‘Well Test Analysis for fractured Reservoir Evaluation’, published by Elsevier in 1990.