Study of Offshore Wind as Power Supply to Oil and Gas Platforms

Abstract

Offshore petroleum installations are conventionally equipped with local power supply based on fossil fuel, e.g. gas turbines. Alternative power supply such as wind power has a large potential to reduce the fossil fuel use, and thereby the CO 2 and NO X emissions. Potential benefits with such a solution are investigated in this paper by considering a system consisting of five interconnected oil platforms connected to a 100 MW offshore wind farm. The platforms are assumed to have a constant load, 147 MW in total. Two parallel gas turbines are still present on each of the five platforms, but the wind power always has first priority to supply the load. A one-year simulation has been made using wind power data. Compared to the case without wind power, an overall reduction in fuel consumption of 21-32 % was found, depending on the operation strategy for the gas turbines. The gas savings yield revenues that were used to calculate the break-even cost for the wind farm investment. A rough estimation indicates that a wind farm investment cost smaller than 2.0 M€/MW would make the combined wind/platform solution favourable compared with the default configuration. As this calculation is highly dependent on a number of parameters, a sensitivity analysis is conducted that quantifies the dependency between different parameters and the break-even wind farm cost.

Technology Suitability Assessment of Battery Energy Storage System for High-Energy Applications on Offshore Oil and Gas Platforms

“…Chapaloglou et al sized BESS for increasing wind power penetration levels and carbon emissions reduction in an OOGP but did not consider the choice of battery chemistry [7]. Ardal et al sized BESS for spinning reserve but only considered three battery chemistries [8]. Also, only weight and maintenance requirements were considered.…”

Potential of Small-wind Turbine for Power Generation on Offshore Oil and Gas Platforms in Malaysia

“…Offshore oil and gas (O&G) platforms are conventionally equipped with power supply based on fossil fuel such as gas turbines and diesel generator sets (Aardal et al, 2012). The power generated is used for offshore oil and gas exploration and production activities which require energy not just to power their main and supporting activities but also instrumentation and utility supply.…”

Assessment of the Potential of Energy Extracted from Waves and Wind to Supply Offshore Oil Platforms Operating in the Gulf of Mexico

“…Gas turbine fuel efficiency is affected under variable operation conditions, considering that the energy consumption during idling conditions can be about 20% of what they would consume at full power [1,3]. Gas turbines in offshore oil platforms normally operate under 30% efficiency ranges, when the normal average efficiency should be about 55% considering a combined cycle gas power plant [3][4][5][6][7][8]. Furthermore, gas turbines increase emissions of NO x , SO 2 , Volatile Organic Compounds (VOC), Particulate Matter 10 micrometers or less (PM 10 ), Particulate Matter 2.5 micrometers or less (PM 2.5 ), CO, and CH 4 under these inefficient operation cycles [1,2,7,9,10].…”