University:
Boston University
Course:
ENG ME 303 | Fluid Mechanics
Academic year:

2020
Views:

225

Pages:

20
Author:

Bobby Craig

Math, Num and Comp Models References Computational Methods for Oil Recovery PASI: Scientific Computing in the Americas The Challenge of Massive Parallelism Comp EOR LMCS 1 / 76 Math, Num and Comp Models References Table of contents 1 Math, Num and Comp Models Processes to be modeled Reservoir Properties One–Phase Flow Two–Phase Immiscible Flow Black–Oil Compositional Oil Solution Schemes 2 References Comp EOR LMCS 2 / 76 Math, Num and Comp Models References Processes to be modeled Table of contents 1 Math, Num and Comp Models Processes to be modeled Reservoir Properties One–Phase Flow Two–Phase Immiscible Flow Black–Oil Compositional Oil Solution Schemes 2 References Comp EOR LMCS 3 / 76 Math, Num and Comp Models References Processes to be modeled Primary Recovery Primary recovery refers to the production that is obtained using the energy inherent in the reservoir due to gas under pressure or a natural water drive. Comp EOR LMCS 4 / 76 Math, Num and Comp Models References Processes to be modeled Primary Recovery Primary recovery refers to the production that is obtained using the energy inherent in the reservoir due to gas under pressure or a natural water drive. The processes to be modeled are the motion of one phase or of two phases at most, without mass exchange between the phases. Comp EOR LMCS 4 / 76 Math, Num and Comp Models References Processes to be modeled Primary Recovery Primary recovery refers to the production that is obtained using the energy inherent in the reservoir due to gas under pressure or a natural water drive. The processes to be modeled are the motion of one phase or of two phases at most, without mass exchange between the phases. Primary recovery ends when the oil field and the atmosphere reach pressure equilibrium. Comp EOR LMCS 4 / 76 Math, Num and Comp Models References Processes to be modeled Primary Recovery Primary recovery refers to the production that is obtained using the energy inherent in the reservoir due to gas under pressure or a natural water drive. The processes to be modeled are the motion of one phase or of two phases at most, without mass exchange between the phases. Primary recovery ends when the oil field and the atmosphere reach pressure equilibrium. The total recovery obtained at this stage is usually around 12-15% of the hydrocarbons contained in the reservoir (OIIP: oil initially in place). Comp EOR LMCS 4 / 76 Math, Num and Comp Models References Processes to be modeled Secondary Recovery In secondary production generally the motion of a three-phase fluid system has to be modeled (w, o, g). Comp EOR LMCS 5 / 76 Math, Num and Comp Models References Processes to be modeled Secondary Recovery In secondary production generally the motion of a three-phase fluid system has to be modeled (w, o, g). The technique of waterflooding is considered as a secondary recovery mehtod. Comp EOR LMCS 5 / 76 Math, Num and Comp Models References Processes to be modeled Secondary Recovery In secondary production generally the motion of a three-phase fluid system has to be modeled (w, o, g). The technique of waterflooding is considered as a secondary recovery mehtod. In this approach water is injected into some wells (injection wells) to maintain the field pressure and flow rates, while oil is produced through other wells (production wells). Comp EOR LMCS 5 / 76 Math, Num and Comp Models References Processes to be modeled Secondary Recovery In secondary production generally the motion of a three-phase fluid system has to be modeled (w, o, g). The technique of waterflooding is considered as a secondary recovery mehtod. In this approach water is injected into some wells (injection wells) to maintain the field pressure and flow rates, while oil is produced through other wells (production wells). Mass exchange between the oil and gas phases must be included. Comp EOR LMCS 5 / 76 Math, Num and Comp Models References Processes to be modeled Secondary Recovery In secondary production generally the motion of a three-phase fluid system has to be modeled (w, o, g). The technique of waterflooding is considered as a secondary recovery mehtod. In this approach water is injected into some wells (injection wells) to maintain the field pressure and flow rates, while oil is produced through other wells (production wells). Mass exchange between the oil and gas phases must be included. The standard computational model to mimic such a system is technically known as the black-oil model. Comp EOR LMCS 5 / 76 Math, Num and Comp Models References Processes to be modeled Secondary Recovery In secondary production generally the motion of a three-phase fluid system has to be modeled (w, o, g). The technique of waterflooding is considered as a secondary recovery mehtod. In this approach water is injected into some wells (injection wells) to maintain the field pressure and flow rates, while oil is produced through other wells (production wells). Mass exchange between the oil and gas phases must be included. The standard computational model to mimic such a system is technically known as the black-oil model. Secondary recovery yields an additional 15-20% of the OIIP. Comp EOR LMCS 5 / 76 Math, Num and Comp Models References Processes to be modeled Secondary Recovery In secondary production generally the motion of a three-phase fluid system has to be modeled (w, o, g). The technique of waterflooding is considered as a secondary recovery mehtod. In this approach water is injected into some wells (injection wells) to maintain the field pressure and flow rates, while oil is produced through other wells (production wells). Mass exchange between the oil and gas phases must be included. The standard computational model to mimic such a system is technically known as the black-oil model. Secondary recovery yields an additional 15-20% of the OIIP. After this stage of production, 50% or more of the hydrocarbons often remains in the reservoir. Comp EOR LMCS 5 / 76 Math, Num and Comp Models References Processes to be modeled EOR The more advanced techniques that have been developed for recovering such a valuable volume of hydrocarbons are known as tertiary recovery techniques or by the more generic term enhanced oil recovery (EOR). Comp EOR LMCS 6 / 76 Math, Num and Comp Models References Processes to be modeled EOR The more advanced techniques that have been developed for recovering such a valuable volume of hydrocarbons are known as tertiary recovery techniques or by the more generic term enhanced oil recovery (EOR). EOR processes are those methods that use external sources of materials and energy to recover oil from a reservoir that cannot be produced economically by conventional means. Comp EOR LMCS 6 / 76 Math, Num and Comp Models References Processes to be modeled EOR The more advanced techniques that have been developed for recovering such a valuable volume of hydrocarbons are known as tertiary recovery techniques or by the more generic term enhanced oil recovery (EOR). EOR processes are those methods that use external sources of materials and energy to recover oil from a reservoir that cannot be produced economically by conventional means. The most important EOR methods can be grouped as follows: 1 Waterflooding: conventional, water-alternating-gas, polymer flooding. Comp EOR LMCS 6 / 76 Math, Num and Comp Models References Processes to be modeled EOR The more advanced techniques that have been developed for recovering such a valuable volume of hydrocarbons are known as tertiary recovery techniques or by the more generic term enhanced oil recovery (EOR). EOR processes are those methods that use external sources of materials and energy to recover oil from a reservoir that cannot be produced economically by conventional means. The most important EOR methods can be grouped as follows: 1 2 Waterflooding: conventional, water-alternating-gas, polymer flooding. Miscible gas injection: hydrocarbon gas, CO2, nitrogen. Comp EOR LMCS 6 / 76 Math, Num and Comp Models References Processes to be modeled EOR The more advanced techniques that have been developed for recovering such a valuable volume of hydrocarbons are known as tertiary recovery techniques or by the more generic term enhanced oil recovery (EOR). EOR processes are those methods that use external sources of materials and energy to recover oil from a reservoir that cannot be produced economically by conventional means. The most important EOR methods can be grouped as follows: 1 2 3 Waterflooding: conventional, water-alternating-gas, polymer flooding. Miscible gas injection: hydrocarbon gas, CO2, nitrogen. Chemical injection: polymer/surfactant, caustic and micellar/polymer flooding. Comp EOR LMCS 6 / 76 Math, Num and Comp Models References Processes to be modeled EOR The more advanced techniques that have been developed for recovering such a valuable volume of hydrocarbons are known as tertiary recovery techniques or by the more generic term enhanced oil recovery (EOR). EOR processes are those methods that use external sources of materials and energy to recover oil from a reservoir that cannot be produced economically by conventional means. The most important EOR methods can be grouped as follows: 1 2 3 4 Waterflooding: conventional, water-alternating-gas, polymer flooding. Miscible gas injection: hydrocarbon gas, CO2, nitrogen. Chemical injection: polymer/surfactant, caustic and micellar/polymer flooding. Thermal oil recovery: cyclic steam injection, steam-flooding, hot-water drive, in-situ combustion. Comp EOR LMCS 6 / 76

Computational Methods for Oil Recovery

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