Real-time Monitoring using AUV in Offshore Oil and Gas Industry. Jing Ping, Memorial University of Newfoundland,. Canada. 1625-1645. Multi Criteria Approach as a Tool to Evaluate Offshore Produced Water Management. Technique.
International Produced Water Conference: Environmental Risks and Advances in Mitigation Technologies October 17 – 18, 2007
Conference Co-Chairs: Dr. Kenneth Lee Dr. Jerry M. Neff
Fisheries and Oceans Canada Neff & Associates LLC
Logistical Coordination: Susan Cobanli Maureen Murphy David Taylor Kari Workman
Fisheries and Oceans Canada One Ocean DG Taylor Inc./ Environmental Studies Research Funds Fisheries and Oceans Canada
Organizing Committee: Hugh Bain Dave Burley Kim Coady Andre Gauthier Geoff Hurley Dr. Tahir Husain Greg Janes Jay Lugar Greg MacDonald Eric Theriault Urban Williams
Fisheries and Oceans Canada Canada-Newfoundland and Labrador Offshore Petroleum Board Canada- Newfoundland and Labrador Offshore Petroleum Board Environment Canada EnCana Corporation Memorial University of Newfoundland Petro-Canada Seafood Producers Association of Nova Scotia ExxonMobil Canada-Nova Scotia Offshore Petroleum Board Petro-Canada
3 INTERNATIONAL PRODUCED WATER CONFERENCE: Environmental Risks and Advances in Mitigation Technologies In offshore oil and gas operations, produced water (the water produced with oil or gas from a well) accounts for the largest waste stream (in terms of volume discharged). Its discharge is continuous during oil and gas production and typically increases in volume over the lifetime of an offshore production platform. Produced water discharge as waste into the ocean has become an environmental concern because of its potential contaminant content. Environmental risk assessments of ocean discharge of produced water have yielded different results. For example, several laboratory and field studies have shown that significant acute toxic effects cannot be detected beyond the “point of discharge” due to rapid dilution in the receiving waters. However, there is some preliminary evidence of chronic sub-lethal impacts in biota associated with the discharge of produced water from oil and gas fields within the North Sea. To address this emerging issue, the International Produced Water Conference is being held in St. John’s Newfoundland, Canada from October 17-18, 2007. Participants will include academia, government scientists and private contractors in the fields of biology, toxicology, geochemistry, organic chemistry, physical oceanography and environmental engineering. The meeting will provide a forum for production of a state-of-the-art review of scientific knowledge on the environmental risk of ocean discharge of produced water and advances in mitigation technologies. As the composition and concentration of potential produced water contaminants may vary from one geologic formation to another, this conference will also highlight the results of recent studies in Atlantic Canada. Scientific papers presented at this conference will be published in an authoritative book following peer-review.
10
1405-1425
Produced Water Treatment: Updates on a New Produced Water De-Oiling Technology
M.J. Plebon, TORR Canada Inc., Canada
1425-1445
Desanding & Filtration Technologies for Produced Water
Steve Coffee, Enerscope Systems Inc., USA
1445-1505
Offshore Environmental Monitoring in Norway – Regulations, Results and Development
Torgeir Bakke, The Norwegian Institute of Water Research
1505-1525
HEALTH BREAK
Session 6: Numerical/Predictive Modelling (Tahir Husain, Canada ) 1525-1545
An Ecosystem Modeling Approach for Impact Assessment of Produced Water Discharge on Marine Planktonic Production
Charles Hannah, Fisheries and Oceans, Canada
1545-1605
Management of Offshore Oil and Gas Projects – An Integrated Approach
Tahir Husain, Memorial University of Newfoundland, Canada
1605-1625
Real-time Monitoring using AUV in Offshore Oil and Gas Industry
Jing Ping, Memorial University of Newfoundland, Canada
1625-1645
Multi Criteria Approach as a Tool to Evaluate Offshore Produced Water Management Technique
Abdullah Mofarrah, Memorial University of Newfoundland, Canada
1645-1705
CLOSING REMARKS
Kenneth Lee, Fisheries and Oceans, Canada Jerry Neff, Neff & Associates LLC, USA
Posters 1
Potential of Produced Water Discharges to Affect Fish Health
Catherine Andrews, Fisheries and Oceans, Canada
2
Diffuser Hydraulics and Application to Vertical Spiral Diffuser
Maynard Brandsma, Brandsma Engineering, USA
41 Real-time Monitoring using AUV in Offshore Oil and Gas Industry Jing Ping*, Bing Chen, and Tahir Husain University, Saint Johns, NL, A1B 3X5
Faculty of Engineering & Applied Science, Memorial
As a result of population expansion, industrial development, and exploitation of marine resources, oceans are becoming environmental vulnerable. In order to understand the impact of human activities, especially in offshore oil and gas industry, on oceans, environmental monitoring has been conducted world wide. Since the traditional approaches are challenged by the further survey in deep water and harsh environment such as Northern Atlantic and Arctic regions, the in-situ environmental monitoring technology by using autonomous underwater vehicle (AUV) equipped with environmental sensors has attracted growing interests. An AUV is a robotic device that is driven through the water by a propulsion system, controlled and piloted by an onboard computer, and maneuverable in three dimensions. Sensors on board the AUV could sample the ocean as the AUV moves through it, providing the ability to make both spatial and time series measurements. Such an innovative technology is regarded as an effective means of quantifying the significance of marine pollution through real-time monitoring. This paper aimed at an in-depth exploitation of the AUV-based environmental monitoring technology from both theoretical and practical perspectives. Firstly, a comprehensive review disclosed that AUVs had evolved from engineering curiosities to practical vehicles carrying environmental sensors used in experimental demonstrations of their scientific utility; secondly, a feasibility analysis was conducted for the development of an integrated AUV-based monitoring system including on-board sensor-sampler-analyzer (i.e. auto-sampler and portable GC) as sampling systems for acquiring environmental data to detect organic pollutants (e.g. PAHs) in the marine environment; finally, the potential application of the proposed system was discussed and its ability of providing a quantitative vision on the quality of marine environment and facilitating validation of simulation models was confirmed.
Multi Criteria Approach as a Tool to Evaluate Offshore Produced Water Management Technique Abdullah Mofarrah* ,T. Husain, Kelly Hawboldt, Brian Veitch Science, Memorial University, St. John's, NL, A1B 3X5 Canada.
Faculty of Engineering and Applied
Developments of effective produced water management strategies pose a challenge to the offshore petroleum industry. This paper presents a multi criteria approach to evaluate the best produced water management options. Technical feasibility, cost, environment, marine impact and safety factors are considered as evaluation criteria. Individual criteria were assigned weights according to their importance. The weights of sub-criteria in each group added up to the weight of the corresponding upper level criteria, and the weights of all the criteria in the top level added up to 100. Nine different technologies are evaluated: advanced oxidation process (AOP), Performance Enhancing Coalescence Technology (PECTF), condensate induced extraction, compact flotation unit (CFU), total oil recovery and remediation (TORR), Ctour process, macro porous polymer extraction (MPPE), re-injection of produced water, and tail shaped pre-coalescer. Some of these technologies are already deployed on offshore platforms.
44 Comparative Evaluation of Produced Water Management Technologies in the Offshore and Oil Sands Operations Ibrahim Khan* Energy and Environment Systems Group (EESG), Institute for Sustainable Energy, Environment & Economy (ISEEE), University of Calgary,ES602-2500 University Drive NW, Calgary, AB, Canada, T2N 1N4, During the oil and gas production large amount of water is brought up form reservoir, which is known as produced water. It includes formation water, injection water, brine, and any chemicals circulated downhole or added during the processes oil-water separation or oil recovery enhanced. Produced water is the largest amount of waste released and its amount significantly increases with the production age of the reservoir. As a result, efficient produced water management technologies are required to avoid the environmental effects from produced water. Various technologies are used in different regions and operations systems. In this presentation, different produced water technologies of offshore and Alberta oil sands operations are analyzed. Multi-criteria decision making measure is applied to find out suitable technologies and compare the alternative management options along these lines. The presentation concentrates and addresses the issues that provide essential tools for implementing cost effective technologies for produced water handling and treatment in offshore as wall as oil sands operations. An overall value model is developed based on the assessment of each option through mathematical calculations of its score. The technologies are evaluated based on technical, environmental, and economic variants.
Life Cycle Impact Assessment Based Analysis for Water Based Fluid and Oil Based Fluid Jing Liang, Jingjing Liu, Pu Li*, Bing Chen, and Tahir Husain Faculty of Engineering & Applied Science, Memorial University, Saint Johns, NL, A1B 3X5 Offshore oil and gas industry has been remarkably developing in the past decades as a requirement of the economy growth. More and more reservoirs and wells have been exploited and drilled. Base on the existence of associated regulations, offshore oil and gas operation primarily contributes to serious marine pollution because of the discharge of drilling fluid from its cycle loop. In this paper, two types of oil based fluids (OBF), diesel oil OBF and mineral oil OBF, and two types of water based fluids (WBF), polymer WBF and mixed metal hydroxide WBF, were compared by the application of life cycle assessment (LCA). The system boundary set up for inventory analysis and data evaluation was defined from the input of production process to the output of Drilling process, which including three processes: Production, Transportation, and Drilling. Society and Environmental Toxicology and Chemistry (SETAC) method in Life Cycle Impact Assessment (LCIA) was used to classify, characterize, and normalize the input and output data from these four kinds of fluids, and the final weighted scores were based on eco-indicator 99 indexes. The damages caused by ecotoxicity, by drilling, by eutrophication, and by pH change were analyzed and compared. The results showed that OBF caused significant damage by ecotoxicity and WBF caused significant damage by drilling cutting which about ten times of the damage from OBF. further more, polymer WBF appeared significant damage by eutrophication comparing with the other types, and mixed metal hydroxide WBF appeared significant damage by pH change comparing with the other types. According to the comparison result, each drilling fluid had its advantages and disadvantages comparing to the others, and mineral oil OBF appeared the best environmental performance. However, the selection of drilling fluid should be based on ecological, economical and topographical factors. Finally, several recommendations were presented for pollution prevention opportunities in drilling fluid operation.
