TRAINING ENHANCED OIL RECOVERY EOR METHODS CONCEPTS AND MECHANISMS

TRAINING KEY GEOLOGIC AND RESERVOIR DEFINITIONS

TRAINING REQUIRED MEASUREMENTS FOR PROCESS DESIGN OF EOR METHODS

DESKRIPSI

Provide familiarity with key geologic, reservoir and operational definitions related to oil recovery processes specially enhanced oil recovery (EOR) methods. Explain the basic mechanisms and need for EOR methods and the technical basis for characterization of oil reservoirs and identifying possible candidates for various EOR methods. Identify key parameters, data sources and required measurements for process design of EOR methods. Provide basis for guidelines and engineering judgment in selecting appropriate EOR methods.

MATERI TRAINING

Introduction;

Key geologic and reservoir definitions, Need for enhanced oil recovery
Brief review of oil recovery processes, Important units and expressions
Reservoir Characterization:

Type of reservoir rocks and fluids , Shale distribution and reservoir continuity
Naturally-fractured reservoirs, Main geologic features
Dispersed clay and mineral composition, Reservoir heterogeneity and anisotropy
Key Rock and Fluid Properties:

Relation between porosity, permeability and grain size
Rock wettability and hysteresis effects, Interfacial tension phenomena
Thermal characteristics of crude oil, Phase behavior of surfactant-oil-water systems
Cation exchange capacity of clays, Relative permeability and capillary pressure
Residual wetting and non-wetting phase saturations
Thermodynamic properties of water and steam
Phase behavior of hydrocarbon systems, Viscosity of polymer solutions
Mechanisms of Enhanced Oil Recovery:

Macroscopic oil trapping in reservoirs, Capillary desaturation curves
Factors affecting displacement and sweep efficiencies
Microscopic oil trapping in rock pore spaces,
Frontal advance theory and fractional flow, Thermal effects in oil reservoirs
Enhanced Oil Recovery Processes:

Classification of EOR methods, Description of solvent miscible processes
Description of chemical flood processes, Description of thermal recovery processes
Microbial and other EOR processes, Objectives of EOR methods
Types of solvents and miscibility development,
Polymer, alkaline, surfactant and micellr-polymer
In-situ combustion, cyclic steam and steamflood
Comparison between various EOR methods
Screening Guidelines and Optimization:

Key parameters used in reservoir screening ,
Available resources and economical considerations
Optimization parameters and criteria , Concept of incremental recovery
Limitations on applicability of certain EOR methods
Typical field cases of various EOR methods

METODE

Presentation, discussion, Case study, Evaluation, Pre test & post test