Floating Gas to Power (FGTP): A Screening Study for Stranded Gas Fields Offshore Nigeria
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Date
2021-08-12
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Publisher
International Journal of Engineering Science Invention (IJESI)
Abstract
: Floating Gas to Power (FGTP) has been identified as a frontier concept for stranded gas field
development. Instead of converting dry gas to LNG (FLNG Concept), the gas is used offshore for generating
electricity as an end product. Offshore to Onshore electric power transmission is usually by marine or subsea
cabling. The electricity is eventually distributed into a large utility power grid. As an emerging economy with a
population expected to keep growing, the question of how to bridge Nigeria’s continuously increasing power
deficit has become topical. Furthermore, offshore Nigeria, stranded gas reserves are found in difficult locations
and in such quantities as to render their exploitation through conventional means economically unfeasible. The
main objective of the study was to perform a Niger delta basin-wide screening: identify and rank Nigeria’s most
prospective stranded offshore gas fields and perform a first-order evaluation of the scale of FGTP possible
contribution to alleviating the country’s power deficit. A conventional exploration risking approach was used to
evaluate, rank and risk offshore Niger Delta stranded gas fields for hydrocarbon fluid type, location, water
depths, and distance from shore, terrain, accumulation size, and average reservoir properties. All relevant data
public domain data have been analyzed. 765 fields in the Niger Delta basin have been evaluated and ranked. 79
of these fields were revealed to possess good to very good FGTP Project potential. A shortlist of the most
prospective fields was then enumerated and ranked. Based on the results of this study, we believe we have
localized some of the more interesting "sweet-spots" for FGTP Offshore Nigeria, from an industry perspective.
Technological developments, the gas price and the continued increase in demand for energy will define if and
when these resources will be exploited on a large scale. Furthermore, the study shows that the FGTP option in
the Offshore Nigeria space deserves thorough scrutiny and further studies to evaluate its techno-economic
feasibility. It could prove an economical and environmentally friendly option for energy generation. If properly
harnessed, it could resolve the epileptic power supply problem in Nigeria, generate huge potential revenue for
the government, and create numerous employment opportunities
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Keywords
Gas to Power, Electricity, Floating, Nigeria, Offshore, FGTP