Gas Condensate Reserver Engineering
This 5-day training course deals with “gas condensate reservoir management” with special emphasis on the use of compositional reservoir simulation for well and reservoir management. It begins with a brief introduction to the course objectives followed by basic gas condensate reservoir engineering including reservoir classification, fluid phase modeling, reservoir rock characterization, and multi-phase fluid flow in reservoir. It is then followed by how to determine quantitatively hydrocarbon asset value based on fluid-in-place, recovery factor, and production rate profile. For well and reservoir performance calculation, both simple and complex reservoir simulation methods are introduced. The importance of phase modeling and reservoir description in reservoir simulations are discussed in detail with several field examples. After reviewing general recovery mechanisms in a gas condensate reservoir, specific well and reservoir management issues are considered in detail. They include gas blow-down, pressure maintenance and gas recycling, well deliverability reduction due to condensate build-up, oil production from thin oil-rim, etc. In doing so, two reservoir simulation examples are used for class illustration and for the students’ hand-on experience using a compositional simulator. Well testing, field surveillance and facilities/operations are presented thereafter. Finally the course wraps up with considering how to plan for gas condensate field projects under various uncertainties and a brief course review.
This 5-day training course deals with “gas condensate reservoir management” with special emphasis on the use of compositional reservoir simulation for well and reservoir management. It begins with a brief introduction to the course objectives followed by basic gas condensate reservoir engineering including reservoir classification, fluid phase modeling, reservoir rock characterization, and multi-phase fluid flow in reservoir. It is then followed by how to determine quantitatively hydrocarbon asset value based on fluid-in-place, recovery factor, and production rate profile. For well and reservoir performance calculation, both simple and complex reservoir simulation methods are introduced. The importance of phase modeling and reservoir description in reservoir simulations are discussed in detail with several field examples. After reviewing general recovery mechanisms in a gas condensate reservoir, specific well and reservoir management issues are considered in detail. They include gas blow-down, pressure maintenance and gas recycling, well deliverability reduction due to condensate build-up, oil production from thin oil-rim, etc. In doing so, two reservoir simulation examples are used for class illustration and for the students’ hand-on experience using a compositional simulator. Well testing, field surveillance and facilities/operations are presented thereafter. Finally the course wraps up with considering how to plan for gas condensate field projects under various uncertainties and a brief course review.
Course Outline Day 1
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