Barik Gas Blow Down FDP - Europec2010 Paper

Gas Blowdown Case Study: Striking a Fine Balance in Maximizing Gas Production Plateau and Minimizing Oil Loss Sai Garimella, Ali Kalbani, Ibrahim Waili, Ekrem Kasap, Ali Lamki, SPE, Petroleum Development Oman

Presentation Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Scope of Work & Key Drivers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],This paper addresses the two most important drivers i.e. maximising gas export plateau while simultaneously minimising associated oil losses

Case Study Field Description ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],HCPV map and NE-SW cross-section

Type Log ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Field Development ,[object Object],[object Object],[object Object],[object Object]

Dynamic Model History Match ,[object Object],[object Object],[object Object],[object Object],MG history match results - cum oil (red), cum gas (green) & cum water (blue); thick line-historical and thin line-simulated MG history match results – oil rate (red), gas rate (green), water rate (blue)& Pave (blue); dots -historical and line - simulated

Prediction phase Modelling Philosophy ,[object Object],[object Object],[object Object],[object Object]

GBD Optimisation methodology ,[object Object],[object Object],[object Object]

Optimum Gas Blow Down rates for longest gas plateau period ,[object Object],[object Object],[object Object],[object Object]

Expected Ultimate Recovery (EUR) of oil and gas - Combination Scenarios ,[object Object],[object Object],[object Object]

Static & Dynamic Parameter Uncertainty Analysis ,[object Object]

Static & Dynamic Parameter Uncertainty Reduction ,[object Object],[object Object],[object Object]

Relative Ranking of Uncertainty Parameters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],All realisations with static and dynamic uncertainty parameters were carried forward for forecasting & assessing impact on the key drivers i.e. gas production plateau period and minimising oil loss

Quantification of Uncertainty ranges in Forecasts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Quantification of Uncertainty ranges in Forecasts ,[object Object],[object Object],[object Object]

DEVELOPMENT SCENARIOS EVALUATION ,[object Object],[object Object],[object Object],[object Object],[object Object]

Gas Lift Installation ,[object Object],[object Object],[object Object],[object Object]

Well Reservoir Management – Pre Blow Down & Blowing Down Phases ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Surface Operating Pressure Reduction – Oil Gains ,[object Object],[object Object],[object Object],[object Object],[object Object]

LPO Gas Blow Down Start date Scenarios ,[object Object],[object Object],[object Object],[object Object],The oil & gas production profiles of LPO 10 bar start dates 2018 & 2022 respectively, with HPO & HPO+GL production profiles The oil & gas production profiles of LPO 3 bar start dates 2018 & 2022 respectively along with HPO & HPO+GL production

Comparison of Incremental oil & gas volumes for LPO 10 bar vs. LPO 3 bar ,[object Object],[object Object],[object Object],[object Object]

Results and Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Barik Gas Blow Down FDP - Europec2010 Paper

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