3.2 HSE Commitment and Policy Graphics, Media & Publication Services EPE : EPT-IT-EI Ref. No. 020037 We care... Royal Dutch/Shell Group Commitment to Health, Safety and Environment In the Group we are all committed to: • pursue the goal of no harm to people; • protect the environment; • use material and energy efficiently to provide our products and services; • develop energy resources, products and services consistent with these aims; • publicly report on our performance; • play a leading role on promoting best practice in our industries; • manage HSE matters as any other critical business activity; • promote a culture in which all Shell employees share this committment. In this way we aim to have an HSE performance we can be proud of, to earn the confidence of customers, shareholders and society at large, to be a good neighbour and to contribute to sustainable development. Royal Dutch/Shell Group Health, Safety and Environment Policy Every Shell company: • has a systematic approach to HSE management designed to ensure compiance with the law and to achieve continuous performance improvement; • sets targets for improvement and measures, appraises and reports performance; • requires contractors to manage HSE in line with this policy; • requires joint ventures under its operational control to apply this policy and uses influence to promote it in other ventures; • includes HSE performance in the appraisal of all staff and rewards accordingly. Endorsed by the Committee of Managing Directors, March 1997 Reviewed 2000 ... all of us have a role to play “Each of us has a right and duty to intervene with unsafe acts and conditions or when activities are not in compliance with this HSE policy and Commitment”. June 2004 Malcolm Brinded Thomas M. Botts Executive Director of Exploration & Production Executive Vice President EP Europe James M. Smith UK Country Chairman
3.3 The Environmental Aspects of our Operations Environmental aspects are elements of our activities, products or services that can interact with the environment. Figure 3 illustrates the main environmental aspects we have identified for our offshore locations. We have grouped our significant environmental aspects into four areas: • Atmospheric emissions • Energy use • Discharges to water including spills • Waste 3.3.1 Atmospheric Emissions We burn natural gas and sometimes diesel as fuel on our facilities to generate the power that is required to run our operations. In addition, our facilities are designed to ‘flare’ (burn) and ‘vent’ (release unignited) a certain amount of hydrocarbon gas for safety reasons. Most locations have a continuous stream of gas to flare or vent designed to stop the ingress of air into the facilities that could cause explosive mixtures in the process. Additional amounts are also released through this route during installation shutdown, when all hydrocarbon gas systems are depressurised and when certain equipment items are out of service (either planned or unplanned). The majority of our emissions to air are the products of these combustion processes. The emissions include carbondioxide, nitrogen oxides, sulphur dioxide, carbon monoxide, unburnt hydrocarbons and particulates. These atmospheric pollutants have global (climate change), regional (acidification) and local (air quality) effects. 3.3.2 Energy Use In addition to atmospheric emissions, consumption of diesel and gas to provide energy is an important issue from the point of view of depletion of natural resources. We are currently developing GHG and Energy Management Plans for each of our major installations. 3.3.3 Discharges to water Most of our discharges to water consist of surplus water from our oil and gas wells. This "produced water" is a mixture of naturally occurring water in the reservoir, and seawater that has been injected into the reservoir to support the pressure and sweep oil towards the production wells. We separate the produced water from the oil and gas, and discharge most of it into the sea. The separated water contains a small amount of residual oil as well as chemicals both naturally occurring such as salts, and others such as corrosion inhibitors and de-oilers. As well as produced water, many of our wells produce sand and scale which accumulates in pipework and vessels and needs to be cleaned out from time to time. When pipework and vessels are cleaned, the sand and scale is also cleaned to remove as much oil as possible before it is discharged. Produced sand contains similar materials to produced water and may also contain small amounts of Naturally Occurring Radioactive Material (NORM) which may occur naturally in an oil or gas reservoir. All discharges are monitored and recorded. We also use seawater for cleaning purposes. After use any ‘wash water’ is cleaned before being discharged back into the sea via specially designed drains. Legally permitted levels of cleaning chemicals and some oil may remain in the water when it is discharged. Other drains on our installations discharge surface water, such as accumulated rainwater or seawater, which do not normally contain any oil or chemicals, as well as emergency fire-fighting water and foam, directly into the sea. Finally the smallest contribution to our discharges to the sea comes from leaks and spills from our wells and equipment. Such spills may consist of oil, gas, chemicals, or a mixture of the three. Continuous monitoring, adherence to procedures and rehearsal of emergency response keeps these unintended discharges to a minimum. 3.3.4 Waste A variety of solid and liquid wastes are produced from both our on and offshore operations including drilling waste such as cuttings and spent muds; wastes such as oily rags, fluorescent tubes and batteries, and also office and packaging wastes such as paper, card and wood. Some wastes can be treated and re-injected into reservoirs e.g. drill cuttings under the appropriate legal licences. However the majority of wastes are shipped to shore for onshore disposal. All waste, irrespective of where it is produced, is transferred to licensed facilities for either treatment and disposal; or sorting and bulking prior to transportation for final disposal. All waste is transported and disposed of in accordance with our European waste management policy, in particular through application of the waste hierarchy to prevent and reduce waste as far as possible and minimise the volume of waste to landfill.