The environmental and process safety offshore performance reporting scope is comprised of offshore units that use the following reporting boundaries:
- Units in the Company’s fleet producing and/or storing hydrocarbons under Lease and Operate contracts in 2018
- Units in which the Company exercises full operational management control
- Units in which the Company has full ownership or units that are jointly owned and where the Company has at least 50% ownership
The environmental and process safety performance of the Company is reported by region or management area: Brazil, Angola, North America & Equatorial Guinea and Asia. Based on the criteria stated above, SBM Offshore reports on the environmental performance for the following 13 units:
- Brazil – FPSO Espirito Santo, FPSO Capixaba, FPSO Cidade de Paraty, FPSO Cidade de Anchieta, FPSO Cidade de Ilhabela, FPSO Cidade de Marica, FPSO Cidade de Saquarema
- Angola – FPSO Mondo, FPSO Saxi Batuque and N’Goma FPSO
- North America & Equatorial Guinea – FPSO Aseng and MOPU Deep Panuke (cessation of gas production in May)
- Asia – FSO Yetagun (terminated operations in April)
The environmental offshore performance reporting methodology was chosen according to the performance indicators relative toStandards and guidelines. This includes:
- Greenhouse Gases, referred to as which are N2O (Nitrous Oxide), CH4 (Methane) and CO2 (Carbon Dioxide)
- GHG emissions per hydrocarbon production from flaring and energy generation
- Non Greenhouse Gases which are CO (Carbon Monoxide), NOx (Nitrogen Oxides), SO2 (Sulphur Dioxide) and VOCs (Volatile Organic Compounds)
- Gas flared per hydrocarbon production, including gas flared on SBM Offshore account
- Energy consumption per hydrocarbon production
- Oil in Produced Water per hydrocarbon production
SBM Offshore reports some of its indicators as a weighted average, calculated pro rata over the volume of hydrocarbon production per region. This is in line with theEnvironmental Performance Indicators.
SBM Offshore reports on its onshore scope 1 and 2 emissions1 by operational control and discloses on all its locations with the exception of Africa (Angola office, yard and shorebase), the Kuala Lumpur Shorebase and the small offices in Singapore, China and Jakarta. Efforts are being made to extend the reporting scope to include all locations in operational control. SBM Offshore does not have absolute targets as the Company is focused on the maturity of its data collection.
SBM Offshore reports in this Annual Report for the second time on greenhouse gas emissions related to business flights (scope 3). The data consists of all flights invoiced via our standard travel system and the data covers all operating companies. The CO2 emissions relating to business flights are based on third party documentation, each containing different calculation methods.
For the onshore electricity usage, the Company uses the World Resources Institute Greenhouse Gas Protocol (GHG Protocol) method and conversion factors to calculate CO2 equivalents. For fuels the Company uses conversion factors published by the UK government’s Department for Environment Food & Rural Affairs (DEFRA). CO2 equivalency is a quantity that describes, for a given mixture and amount of greenhouse gas, the amount of CO2 that would have the same global warming potential (GWP), when measured over a specified timescale (generally, 100 years).
Construction yards’ environmental data, specifically emissions, energy and water usage have not been included in scope. SBM Offshore is aware that the construction yards may have a large impact on the environment and have identified this as part of its license to grow under the initiative ‘Manage Environmental Impact’.
The calculation of air emissions from offshore operations units uses the method as described in the EEMS-Atmospheric Emissions Calculations (Issue 1.810a) recommended by Oil & Gas UK. SBM Offshore uses the Global Warming Potentials from the Fourth Assessment Report issued by the Intergovernmental Panel on Climate Change (IPCC).
Emissions reported in the Company’s emissions records include:
- emissions for the production of energy. Records of emissions from steam boilers, gas turbines and diesel engines used by the operating units.
- SBM Offshore: ‘SBM Offshore Account‘ is flaring resulting from unplanned events. Whereas Client Account is flaring resulting from events caused by the client or planned by SBM Offshore in agreement with the client. emissions from gas flared. Flaring events accountability is split into either client or
Identifying the causes of flaring for which SBM Offshore is responsible and acting on these events is part of the continuous improvement process.
Offshore Energy Consumption
The energy used to produce oil and gas covers a range of activities, including:
- Driving pumps producing the hydrocarbons or re-injecting produced water
- Heating produced oil for separation
- Producing steam
- Powering compressors to re-inject produced gas
- Driving turbines to generate electricity needed for operational activities.
The main source of energy consumption of offshore units is Fuel Gas and Marine Gas Oil.
Oil in Produced Water Discharges
Produced water is a high volume liquid discharge generated during the production of oil and gas. After extraction, produced water is separated and treated (de-oiled) before discharge to surface water. The quality of produced water is most widely expressed in terms of its oil content. Limits are imposed on the concentration of oil in the effluent discharge stream (generally expressed in the range of 15-30) or discharge is limited where re-injection is permitted back into the reservoir. The overall efficiency of the oil in water treatment and as applicable reinjection can be expressed as tonnes of oil discharged per million tonnes of hydrocarbon produced.
Incidental environmental releases to air, water or land from the offshore operations units are reported using the data recorded in the SRS database. SBM Offshore has embedded a methodology for calculating the estimated discharge and subsequent classification within the tool.
In line with the SBM Offshore reports on hazardous and non-hazardous waste outputs. The reporting methodology is detailed in each unit’s Waste Management procedure which is part of Environmental Management System Manual. Collected information is based on manifests issued by the installations in compliance with client requirements.standards,
Unlike in 2017, this year the Company only reports Scope 1 emissions of buildings under operation control. To consistently implement this change, the gas usage for 2017 has been revised (and with that the energy usage and CO2 emsission in Scope 1) to meet the same criteria as in 2018.