Abstract
Subsurface oil viscosity data are usually 110t readily
available for most reservoirs, as they are expensive to
acquire. On the other hand, surface oil viscosity is
routinely measured and therefore readily available for
all producing wells. A method has been developed for
converting the surface viscosity to reservoir viscosity
data, using SPDC's "Field A" as a case study.
Surface oil viscosity data from all producing wells in
"Field A" where collected from SPDC-West
Production Chemistry laboratory and converted to
reservoir viscosity using a simple method that utilises
relevant PVT data. The method allows a better and
more detailed subsurface description of reservoir
viscosity in line with facies variations. The study also
shows that reservoir oil viscosity could be lower in
some sands than previously estimated. This gave a
significant impact on reserves in one of the reservoirs
where scope to increase the booked reserves by about
60 MMstb was observed. Opportunity to also -increase
constrained offtake from 2300 bid to 3000 bid in some
planned new wells was also observed.
Umeh, N (2021). Improved Reservoir Description Using Surface Oil Viscosity Data. Afribary. Retrieved from https://afribary.com/works/improved-reservoir-description-using-surface-oil-viscosity-data
Umeh, N. "Improved Reservoir Description Using Surface Oil Viscosity Data" Afribary. Afribary, 21 Apr. 2021, https://afribary.com/works/improved-reservoir-description-using-surface-oil-viscosity-data. Accessed 22 Nov. 2024.
Umeh, N. . "Improved Reservoir Description Using Surface Oil Viscosity Data". Afribary, Afribary, 21 Apr. 2021. Web. 22 Nov. 2024. < https://afribary.com/works/improved-reservoir-description-using-surface-oil-viscosity-data >.
Umeh, N. . "Improved Reservoir Description Using Surface Oil Viscosity Data" Afribary (2021). Accessed November 22, 2024. https://afribary.com/works/improved-reservoir-description-using-surface-oil-viscosity-data