DESIGN PARAMETERS FOR THE WAG PROCESS

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Shafiei Ali Asghar

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Seminar Paper

Paper Information

Seminar: NATIONAL CONFERENCE ON HYDROCARBON RESERVOIR ENGINEERING, SCIENCE AND RELATED INDUSTRIES
Year:2012 | Issue:1

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Title

DESIGN PARAMETERS FOR THE WAG PROCESS

Author(s)

Shafiei Ali Asghar

Keywords

WAG PARAMETERS

HETEROGENEITY

SWEEP EFFICIENCY

GRAVITY SEGREGATION

Abstract

IN RECENT YEARS THERE HAS BEEN AN INCREASING INTEREST IN WAG PROCESSES, BOTH MISCIBLE AND IMMISCIBLE. DESIGN OF WAG PROCESS IS MORE COMPLICATED THAN WATERFLOOD AND GAS INJECTION PROCESSES, DUE TO EXISTENCE OF THREE MOBILE PHASES SIMULATANEOUSLY. PARAMETERS THAT SHOULD BE CONSIDERED FOR THE WAG PROCESS INCLUDE RESERVOIR HETEROGENEITY AND STRATIFICATION, ROCK AND FLUID CHARACTERISTICS, INJECTION GAS CHARACTERISTICS, INJECTION PATTERN, TAPERING (CHANGE IN WATER TO GAS RATIO THROUGHOUT THE FLOOD), WAG INJECTION PARAMETERS (WATER TO GAS RATIO, NUMBER OF CYCLES, INJECTION RATES), FLOW DISPERSION EFFECTS (RELATIVE PERMEABILITY DESCRIPTION FOR THREE PHASES), GRAVITY CONSIDERATIONS IN WAG AND LABORATORY STUDIES AND SIMULATION. PLAIN GAS INJECTION IS A WAG PROCESS WITH WATER TO GAS RATIO OF 0:1, HENCE THESE THESE DESIGN ISSUES ARE APPLICABLE TO GAS INJECTION DESIGN. THE POPULARITY OF THE WAG PROCESS IS EVIDENT FROM THE INCREASING NUMBER OF PROJECTS AND MANY SUCCESSFUL FIELD WIDE APPLICATIONS. WATERFLOODING AND PLAIN GAS INJECTION ARE TWO COMMONLY-USED EOR METHODS IN IRANIAN RESERVOIRS, BUT THEIR ASSOCCIATED PROBLEMS LEAD TO LOWER PRODUCTION LIFE OF THE WELLS. IT'S BEEN APPROVED THAT WAG PROCESS, IN SOME CASES, MODIFIES THE DEMERITS OF THESE PROCESSES, HENCE MORE RESIDUAL OIL IS PRODUCED. AFTER DESIGN OF THE WAG PROCESS PILOT TESTS ARE REQUIRED TO MONITOR ITS PERFORMANCE IN THE FIELD.

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APA: Copy

Shafiei, Ali Asghar. (2012). DESIGN PARAMETERS FOR THE WAG PROCESS. NATIONAL CONFERENCE ON HYDROCARBON RESERVOIR ENGINEERING, SCIENCE AND RELATED INDUSTRIES. SID. https://sid.ir/paper/923060/en

Vancouver: Copy

Shafiei Ali Asghar. DESIGN PARAMETERS FOR THE WAG PROCESS. 2012. Available from: https://sid.ir/paper/923060/en

IEEE: Copy

Ali Asghar Shafiei, “DESIGN PARAMETERS FOR THE WAG PROCESS,” presented at the NATIONAL CONFERENCE ON HYDROCARBON RESERVOIR ENGINEERING, SCIENCE AND RELATED INDUSTRIES. 2012, [Online]. Available: https://sid.ir/paper/923060/en

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