Course objectives: Students will be able to comment on the fundamentals of reservoir management, present the theoretical production decline curves, evaluate a certain well’s operational conditions and apply the material balance equation.

Course content:

• 1. Reservoir management fundamentals:
  • The concept of reservoir management: definition of the term reservoir management, fundamentals of the reservoir management, importance of the geoscience, research and development strategy;
  • Consideration of spatial well patterns – four, five, seven, nine spot patterns, including inverse patterns;
  • Decision making regarding the implementation of a new recovery method (infill drilling, waterflood, stimulation);
  • Collection and analysis of the data: data types, data validation, data storage and withdrawal;
  • Management of a geothermal reservoir;
• 2. Theoretical production decline curves:
  • Analysis of the reservoir behaviour: primary recovery methods, reserves, volumetric method;
  • Exponential, hyperbolic and harmonic decline types;
  • Characteristics, equations, and Excel examples and MBAL;
  • The Fetkovich method;
  • Fundamentals of the rest of the methods for reservoir behaviour prediction;
• 3. Well operational parameters:
  • Determination of well interference and selection of wells suitable for conversion from production to injection well and vice-versa;
  • Well pressure data collection; Influence of the reperforating, acid treatments and fracturing on the reservoir performance;
  • Using tracers for well communication determination;
• 4. Material balance equation:
  • Production material balance of a reservoir;
  • Matching the reservoir production material balance and well production history data;
  • Examples of material balance;
  • Reservoir management economics.

Learning outcomes at the level of the course:

• Distinct the well patterns;
• Decide on a new recovery method;
• Prove the production decline type;
• Analyse the well production data;
• Calculate the reservoir behaviour by using material balance equation.