This Section Describes the Canaport Energy East Marine Terminal That Will Be Constructed for the Project Near Saint John, New Brunswick
Total Page:16
File Type:pdf, Size:1020Kb
CA PDF Page 1 of 24 Energy East Pipeline Ltd. Consolidated Application Section 6 Volume 6: Facility Design Marine Terminal Design 6.0 OVERVIEW This section describes the Canaport Energy East marine terminal that will be constructed for the Project near Saint John, New Brunswick. This marine terminal will involve the development of facilities for loading oil from the Saint John tank terminal onto oil tankers. The section outlines the major components and systems, as well as the engineering considerations and philosophies, which are applicable to the design of the marine terminal. The information is based on preliminary design and is supported by initial field investigations. Revisions and refinements are expected as additional data is collected and assessed, and as engineering progresses through detailed design. 6.1 LOCATION The Canaport Energy East marine terminal will be located in an existing industrial area on the western shore of the Bay of Fundy, southeast of the city of Saint John and south of Mispec Point in New Brunswick. The site is adjacent to the existing Irving Oil Canaport facility, which includes a single buoy mooring used in the importation of oil to the Irving Oil refinery and storage facilities and Canaport LNG terminal, which imports liquefied natural gas. Refer to aerial map provided in Appendix 6-94. The available onshore area at the Canaport Energy East marine terminal is limited due to the rocky shoreline and proximity to the existing Irving Oil Canaport facilities. Vehicle access will be along the shared two-lane west perimeter road through the existing Irving Oil Canaport facility. A new 6-m wide two-way road will branch off the perimeter road along the shoreline to the trestle abutment. Table 6-1 lists the longitude and latitude of the Canaport Energy East marine terminal. Table 6-1: Latitude and Longitude of Canaport Energy East Marine Terminal (CA Rev.0) Appendix Description Centroid Latitude1 Centroid Longitude1 Number Foreshore Area 4512'39"N 6559'31"W 6-94 Auxiliary Equipment Area 4513'04"N 6559'40"W Marine Berth 1 4512'20"N 6559'53"W Marine Berth 2 4512'22"N 6600'11"W Note: 1. The locations in this column have been rounded. May 2016 Page 6-1 CA PDF Page 2 of 24 Energy East Pipeline Ltd. Section 6 Consolidated Application Marine Terminal Design Volume 6: Facility Design Berth location and orientation have been designed to allow the safe navigation, and berthing and mooring of tankers. The design considered for location and orientation: water depth (noting tidal fluctuation), and tanker manoeuvring and turning circles/areas proximity to existing operations at Canaport LNG terminal and Irving Oil Canaport single buoy mooring berth orientation in consideration of predominant current and wave directions Dredging of the berth pocket and part of the turning circle will be required at the Canaport Energy East marine terminal to accommodate vessels anticipated to call at the marine terminal. For an outline of the expected dredging method and construction considerations, see Volume 7, Section 3: Construction – Component Specific.Information 6.2 MAIN COMPONENTS AND SYSTEMS The marine terminal will be delineated by offshore and onshore areas and includes the following main components: marine berths with: loading and auxiliary platforms mooring and breasting dolphins marine access trestle connecting the marine berths to shore piping and mechanical systems associated with oil loading piping and mechanical systems associated with vapour management buildings and electrical equipment access roadways security systems emergency response equipment The oil-loading pumps and custody transfer metering, although physically located at the tank terminal, are described in this section as they are components associated with the operation of the marine terminal. 6.3 SAFETY AND ENVIRONMENTAL PROTECTION Safety and environmental protection measures have been incorporated in the marine terminal design to reduce the risk of an incident such as an oil spill or fire from occurring and the potential effects of an incident should one occur. An overview of these measures is provided in Sections 6.3.1 to 6.3.4 below. Page 6-2 May 2016 CA PDF Page 3 of 24 Energy East Pipeline Ltd. Consolidated Application Section 6 Volume 6: Facility Design Marine Terminal Design 6.3.1 Oil Spill Prevention and Mitigation Measures The components used to store and transfer oil between the tank terminal and marine terminal, and at the marine terminal provide for the primary protection in preventing oil spills. These pressure-containing components such as pumps, meters, pipes, valves and loading arms will be designed and manufactured in accordance with industry standards for the service conditions expected. Upon installation, the pressure-containing components will form a closed system. Pressure containment will be achieved by a combination of wall thickness and strength of the steel used for each component designed for the maximum operating pressure of the system. The design will comply with CSA Z662-15. To reduce the potential loss of product, engineering design measures have been incorporated into the preliminary design of the marine terminal. Examples include: implementing a leak detection system to detect potential oil loss in the pipe from the tank terminal to the loading platform installing a drain piping system to capture oil leakage from pumps and pipe installing a secondary containment system in the form of a concrete deck and curbing under all flanges and oil or vapour equipment located offshore implementing a docking assistance system to measure tanker speed, distance and angle of approach to the berth implementing a mooring hook load monitoring system to alert the berth operator and tanker crew to line loads and allowing adjustment of the mooring lines before an incident occurs implementing a marine environmental monitoring system to provide real-time meteorological and oceanographic information to ensure a tanker does not attempt to berth or unberth if the conditions (wind, waves or currents) exceed the safe operational values The integrity of the pressure-containing components will be verified during fabrication, construction and commissioning by measures such as: implementing TransCanada’s quality management program for verifying material and fabrication methods pipeline surface coatings and installing cathodic protection systems to prevent corrosion hydrotesting pipe and tanks during construction May 2016 Page 6-3 CA PDF Page 4 of 24 Energy East Pipeline Ltd. Section 6 Consolidated Application Marine Terminal Design Volume 6: Facility Design Operational measures will include: operating within the approved engineering design pressures implementing TransCanada’s integrity management program ensuring that all tankers are equipped with multiple oil spill preventative systems such as double hulls and compartmentalized cargo tanks Onsite oil spill response and containment equipment will be maintained at the marine terminal, in addition to the terminal having a signed agreement with the certified spill response organization Atlantic Environmental Response Team (ALERT), subsequent to being designated an “Oil Handling Facility” under the Canada Shipping Act, 2001. Equipment to be stored at the marine terminal will include: spill booms spill response vessel deployment equipment 6.3.2 Fire Prevention and Mitigation Measures Fire prevention is primarily achieved by the reduction of vapour release from oil-containing components and the elimination of potential ignition sources nearby. As described in Section 6.3.1, the pressure-containing components will form a closed system. Electrical equipment will be separated from oil-containing components, or it will be designed with protective features to operate safely when installed near oil- containing components. Oil loading arms will have electrical conductors for protection against lightning strikes. Loading arms will also be equipped with insulating flanges to prevent sparks when connecting to the tanker’s manifold and electrically isolate the tanker from the offshore and onshore terminal system. Isolation valves will have a certified fire-safe design. Sump vents will be equipped with a flame arrester to prevent the ignition of vapours in the sump tank. Fire detectors will be installed on the loading platforms. Heat and smoke detectors will be installed in the electrical equipment shelter. The control system will monitor these instruments, and an alarm will be sent to the local facility building and OCC if heat or smoke is detected. If a fire is confirmed, the emergency shutdown system will initiate. Further details on the ESD system are provided in Section 6.4.8.2, Emergency Shutdown System. Page 6-4 May 2016 CA PDF Page 5 of 24 Energy East Pipeline Ltd. Consolidated Application Section 6 Volume 6: Facility Design Marine Terminal Design A fire water and foam distribution system will be installed on the loading platforms and in the auxiliary equipment area. Fire hydrants will be installed along the trestle. 6.3.3 Security The security established at the marine terminal will be based on the Marine Transportation Security Regulations, which provides a framework to detect security threats and take measures to prevent security incidents that could affect marine vessels, its facilities and associated infrastructure. Transport Canada, under the Minister of Transportation authorization, will conduct a marine facility security assessment before commissioning the marine terminal