Environmental Management and Mitigation: Enbridge Northern Gateway Pipelines Project

Author(s):  
Paul Anderson ◽  
Jeffrey Green ◽  
Linda Postlewaite

The Northern Gateway Pipelines project drew more attention from the Canadian public than most in recent Canadian history. Northern Gateway has proposed to construct and operate an oil pipeline, a condensate pipeline, associated facilities, two tunnels, powerlines, multiple pump stations, a land tank terminal, and a marine transportation terminal to be located near Kitimat, British Columbia. Not since the Canadian Pacific Railway has a project raised the interest of Canadians. The regulatory review and assessment process for Northern Gateway was extensive. The Canadian government established a Joint Review Panel to preside over the assessment and review process. To ensure that stakeholders and potentially affected aboriginal communities were heard, the Panel embarked on an extensive public hearing and consultation program. They received thousands of letters of interest, and 4,300 requests for public statements. The Panel heard from approximately 1,200 registered participants in 19 locations. The regulatory hearings spanned a period from September 2012 to June 2013. Opposition to the project stemmed primarily from concerns about the effect of oil spills on freshwater and marine environments and human use. Others were concerned about the expanded development of oil sands. The environmental assessment undertaken by Northern Gateway was extensive, as was the mitigation proposed by the project to avoid or minimize environmental effects resulting from the project. The project incorporated new and innovative approaches to minimize environmental effects. The paper introduces the project and the latter part discusses the extraordinary measures proposed and undertaken to minimize potential risks to the environment.

Rangifer ◽  
2005 ◽  
Vol 25 (4) ◽  
pp. 89
Author(s):  
Paula R. Bentham

Since 1985, woodland caribou (Rangifer tarandus caribou) have been designated as a threatened species in Alberta. Populations studied since the 1970s have been stable or declining, with no population increases documented. Resource expansion into previously undeveloped areas and associated increases in access have been implicated as possible causes for the declines. To facilitate development on caribou ranges, while ensuring the integrity and supply of caribou habitat, standing committees have been formed. The primary role of the committees is to act as advisory bodies to the government and to search for effective and efficient industrial operating guidelines. Recent research has been conducted on the responses of woodland caribou ecotypes to increased human and predator access. Based on this research, operating guidelines have been refined and implemented through Caribou Protection Plans. I discuss how the current operating guidelines are put into practice and linked to the Environmental Assessment process within the Oil Sands Region of Alberta. In particular, I discuss the origination of impact predictions, specific mitigation measures to reduce impacts and monitoring.


2021 ◽  
Author(s):  
Svitlana Liubartseva ◽  
Ivan Federico ◽  
Giovanni Coppini ◽  
Rita Lecci

<p>Being situated in a semi-enclosed Mediterranean lagoon, the Port of Taranto represents a transport, industrial and commercial hub, where the port infrastructure, a notorious steel plant, oil refinery and naval shipyards coexist with highly-dense urban zone, recreation facilities, mussel farms, and vulnerable environmental sites. A Single Buoy Mooring in the center of the Mar Grande used by tankers and subsea pipeline that takes oil directly from tanker to refinery are assumed to stay at risk of accidental oil spills, despite significant progress in technology and prevention.</p><p>The oil spill model MEDSLIK-II (http://medslik-ii.org) coupled to the high resolution Southern Adriatic Northern Ionian coastal Forecasting System (SANIFS http://sanifs.cmcc.it Federico et al., 2017) is used to model hypothetical oil spill scenarios in stochastic mode. 15,000+ hypothetical individual spills are generated from randomly selected start locations: 50% from a buoy and 50% along the subsea pipeline 2018–2020. Individual spill scenario is based on a real crude oil spill caused by a catastrophic pipeline failure happened in Genoa in April 2016 (Vairo et al., 2017). The model outputs are processed statistically to represent quantitively: (1) timing of the oil drift; (2) hazard maps in probability terms at the sea surface and on the coastline; (3) oil mass balance; (4) local-zone contamination assessment.</p><p>The simulations reveal that around 48% of the spilled oil will evaporate during the first 8 hours after the accident. Being transported by highly variable currents and waves, the rest is additionally exposed to multiply reflections from sea walls and concrete wharfs that dominate in the study area. As a result, the oil will be dispersed almost isotropically in the Mar Grande, indicating a rather moderate or small level of concentrations over the minimum threshold values (French McCay, 2016).</p><p>We have concluded that at a probability of 50%, the first oil beaching event will happen within 14 hours after the accident. The most contaminated areas are predicted on and around the nearest Port berths, on the coastlines of the urban area and on the tips of the breakwaters that frame the Mar Grande openings. The remote areas of the West Port and Mar Piccolo are expected to be the least contaminated ones.</p><p>Results are applicable to contingency planning, ecological risk assessment, cost-benefit analysis, and education.</p><p>This work is conducted in the framework of the IMPRESSIVE project (#821922) co-funded by the European Commission under the H2020 Programme.</p><p>References</p><p>Federico, I., Pinardi, N., Coppini, G., Oddo, P., Lecci, R., Mossa, M., 2017. Coastal ocean forecasting with an unstructured grid model in the southern Adriatic and northern Ionian seas. Nat. Hazards Earth Syst. Sci., 17, 45–59, doi: 10.5194/nhess-17-45-2017.</p><p>French McCay, D., 2016. Potential effects thresholds for oil spill risk assessments. Proc. of the 39 AMOP Tech. Sem., Environment and Climate Change Canada, Ottawa, ON, 285–303.</p><p>Vairo, T., Magrì, S., Qualgliati, M., Reverberi, A.P., Fabiano, B., 2017. An oil pipeline catastrophic failure: accident scenario modelling and emergency response development. Chem. Eng. Trans., 57, 373–378, doi: 10.3303/CET1757063.</p>


2017 ◽  
Vol 12 (1) ◽  
pp. 112 ◽  
Author(s):  
Leksono Mucharam ◽  
Silvya Rahmawati ◽  
Rizki Ramadhani

Oil and gas industry is one of the most capital-intensive industry in the world. Each step of oil and gas processing starting from exploration, exploitation, up to abandonment of the field, consumes large amount of capital. Optimization in each step of process is essential to reduce expenditure. In this paper, optimization of fluid flow in pipeline during oil transportation will be observed and studied in order to increase pipeline flow performance.This paper concentrates on chemical application into pipeline therefore the chemical can increase overall pipeline throughput or decrease energy requirement for oil transportation. These chemicals are called drag reducing agent, which consist of various chemicals such as surfactants, polymers, nanofluids, fibers, etc. During the application of chemical into pipeline flow system, these chemicals are already proven to decrease pump work for constant flow rate or allow pipeline to transport more oil for same amount of pump work. The first application of drag reducer in large scale oil transportation was in Trans Alaskan Pipeline System which cancel the need to build several pump stations because of the successful application. Since then, more company worldwide started to apply drag reducer to their pipeline system.Several tedious testings on laboratory should be done to examine the effect of drag reducer to crude oil that will be the subject of application. In this paper, one of the testing method is studied and experimented to select the most effective DRA from several proposed additives. For given pipeline system and crude oil type, the most optimum DRA is DRA A for pipeline section S-R and for section R-P is DRA B. Different type of oil and pipeline geometry will require different chemical drag reducer. 


Author(s):  
Sasan Mehrabian ◽  
Nima Abbaspour ◽  
Markus Bussmann ◽  
Edgar Acosta

Separating oil from solid particles is of great importance in many industrial processes including the extraction of bitumen from oil sands, and the remediation of oil spills. The usual approach is to separate the oil from the solid by introducing another liquid (e.g. water). Separation is often assisted by fluid mixing, and chemical addition. Yet while oil-water-particle separation has been well studied from a chemical standpoint, little research has taken into account the effect of hydrodynamics on separation. In this work, the separation of oil from a single oil-coated spherical particle falling through an aqueous solution was evaluated as a function of viscosity ratio. Solvents were used to modify the viscosity of the oil. The experiments were recorded using a high-speed camera and post-processed using the MATLAB image-processing toolbox. A CFD model has also been developed to study this phenomenon. The results indicate that when viscous forces are strong enough, the oil film deforms, flows to the back of the sphere, and forms a tail that eventually breaks up into a series of droplets due to a capillary wave instability. When the viscosity ratio is small (i.e. the oil is less viscous than the solution), a thin tail forms quickly, the growth rate of the instability is high, and hence the tail breaks very quickly into smaller droplets. When the viscosity ratio is high (i.e. the oil is more viscous), more time is required for the deformation/separation to initiate, and the tail is thicker and breaks more slowly into larger droplets. It was observed that when the viscosity ratio is close to 1, the rate of separation is increased and maximum separation is achieved.


1973 ◽  
Vol 1973 (1) ◽  
pp. 39-43 ◽  
Author(s):  
E. W. Wellbaum

ABSTRACT Oil spills only occur after the start-up of a facility but oil spill prevention for a pipeline-terminal-tanker complex begins with route selection and continues through design, construction, personnel training, operation and maintenance. The trans-Alaska pipeline project has faced all of the usual, and some unusual, problems which needed solutions to give maximum assurance that oil spills would not occur during the operating life of the facilities. This conference today is considering the prevention of oil spill incidents associated with tanker and pipeline operations, refineries, and transfer and storage terminals. The trans-Alaska pipeline system is concerned with each of these functions of the petroleum industry. Alyeska Pipeline Service Company is responsible for design, construction, operation, and maintenance of the pipeline system which will move crude oil produced on the Alaskan North Slope along a route to Valdez, an ice free port located on an arm of Prince William Sound. At Valdez, the oil will be transferred to ocean going tankers. The project will have at its ultimate design capacity of two million barrels per day:Almost 800 miles of 48-inch pipeline.Twelve pump stations with 650,000 installed HP.Twenty-million barrels of crude oil storage in fifty-two tanks.Five loading berths at a deep water terminal servicing a fleet of tankers ranging in size from 30,000 dwt to 250,000 dwt.Eight crude oil topping plants, manufacturing fuel for pump stations, each with a charge of 10,000 barrels per day.A ballast water treating plant capable of handling up to 800,000 barrels per day of dirty ballast.A 25,000 KW power generation plant.Several dozen mechanical refrigeration plants which will be freezing the ground in Alaska.


1999 ◽  
Vol 1999 (1) ◽  
pp. 607-612
Author(s):  
Alexis Steen ◽  
David E. Fritz ◽  
William Stubblefield ◽  
Jeffrey Giddings

ABSTRACT A research project was commissioned by the American Petroleum Institute (API) to summarize information on freshwater spill environmental effects. While threats to migrating fish stocks or aquatic mammals may be primary concerns following an ocean spill, adverse effects to benthic invertebrates, reptiles, amphibians, waterfowl, fish hatcheries, shoreline vegetation, or public drinking water intakes may be the focus of a freshwater event. Environmental effects from spilled petroleum constituents and whole oils are discussed. Research needs are identified.


Chemosphere ◽  
2007 ◽  
Vol 68 (5) ◽  
pp. 893-906 ◽  
Author(s):  
Rosario Iturbe ◽  
Carlos Flores ◽  
Alejandrina Castro ◽  
Luis G. Torres

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