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ABSTRACT With Petro-Canada's extensive involvement in oil and gas development off Canada's East Coast, the company made a strategic decision to establish and locate a new Strategic Business Unit (SBU) in eastern Canada to manage all of its East Coast offshore development and operations activities. This entity has established itself firmly as a major player in Canada's East Coast offshore oil and gas industry. With the establishment of the East Coast SBU, Petro-Canada East Coast management believed that real value was to be gained in designing and implementing a dedicated, structured Quality Management System with the objective being to help effectively manage its East Coast activities and to continually improve the quality of work. This paper outlines the main features of Petro-Canada East Coast's Quality Management System. INTRODUCTION Petro-Canada is a major player off Canada's East Coast (Figure. 1) with interests in every major Grand Banks discovery to date. The company holds significant interests in the Hibernia field (the first Grand Banks development) which has been producing oil since 1997, and is the operator of the Terra Nova field development which achieved first oil early in 2002. It also holds interests in the White Rose development, which is currently in project phase, and in the Hebron/Ben Nevis discovery. Outside the Grand Banks, Petro-Canada is executing a 2003 exploratory drilling program in the Flemish Pass Basin (deepwater) and also has extensive land position in both explored and under-explored regions off Newfoundland and Nova Scotia. With the establishment of the Petro-Canada East Coast Strategic Business Unit in the late 1990's, Petro-Canada East Coast management believed that real value was to be gained in designing and implementing a dedicated, structured Quality Management System with the objective being to help effectively manage its East Coast activities and to continually improve the quality of work.
- North America > Canada > Newfoundland and Labrador > Newfoundland > North Atlantic Ocean > Atlantic Margin Basin > Grand Banks Basin > Jeanne d'Arc Basin > Terra Nova Field (0.99)
- North America > Canada > Newfoundland and Labrador > Newfoundland > North Atlantic Ocean > Atlantic Margin Basin > Grand Banks Basin > Jeanne d'Arc Basin > Hibernia Field > Hibernia Formation (0.99)
- North America > Canada > Newfoundland and Labrador > Newfoundland > North Atlantic Ocean > Atlantic Margin Basin > Grand Banks Basin > Jeanne d'Arc Basin > Hibernia Field > Avalon Formation (0.99)
- North America > Canada > Newfoundland and Labrador > Newfoundland > North Atlantic Ocean > Atlantic Margin Basin > Grand Banks Basin > Flemish Pass Basin (0.99)
Victor 6000: Design, Utilization And First Improvements
Michel, Jean-Louis (Ifremer, Centre de Méditerranée, Département Systèmes Sous-Marins de la DNIS) | Klages, Michaël (Alfred Wegener Institute for Polar and Marine Research) | Barriga, Fernando J.A.S. (Departamento de Geologia, Faculdade de Ciências de Lisboa) | Fouquet, Yves (Ifremer, Département Géosciences Marines de la DRO) | Sibuet, Myriam (Ifremer, Département Environnement Profond de la DRO) | Sarradin, Pierre-Marie (Ifremer, Département Environnement Profond de la DRO) | Siméoni, Patrick (Ifremer, Département Systèmes Sous-Marins de la DNIS) | Drogou, Jean-François (Ifremer, Département Systèmes Sous-Marins de la DNIS)
ABSTRACT Following the needs of a widening community of end users the modular deep Remotely Operated Vehicle Victor 6000 of the Institut Français d'Exploitation de la Mer, Ifremer, is evolving using new technologies. A deep record dive at high latitude (79°north) was reached in the Molloy Deep at 5550 metres in 1999. The performance obtained till 2002 during 2600 hours of work/survey near the seafloor are contributing significantly to the observation and the monitoring of the deep benthic ecosystems in various environments of the midoceanic ridges and the continental margins. INTRODUCTION The purpose of this paper is to give technical and scientific background leading to the successful operation and results of the 6000-m depth-rated Remotely Operated Vehicle (ROV), Victor 6000, during the past 4 years. The industrial and technical context, that favored the development by Ifremer of a ROV dedicated to scientific users, is summarized. Those experiences conduct to list and select new improvements to take into account reliability and operability improvements, obsolescence, new ideas and requirements, several of them being allowed or caused by the technical progress. Some perspectives are defined before the conclusion. THE VICTOR 6000 DEVELOPMENT In the 90s the offshore oil industry increased its use of large, work class ROV, with depth capacities evolving from 1000 to 3000 meters at the end of this decade. Following these evaluations and a feasibility study, the Ifremer decided to invest in the development of a ROV dedicated to the scientific utilization in coherence with the 6000-metre depth capabilities of the Ifremer deep-sea fleet. The former accrued experiences in deep-sea technologies, developed and operated on the manned submersibles (Nautile/Robin and Cyana) as on several towed vehicles and robots (Epaulard, Sar, Scampi), made Ifremer sub-sea systems designers able to take in charge this development.
- North America > United States (1.00)
- Europe (1.00)
- Geology > Geological Subdiscipline (1.00)
- Geology > Structural Geology > Tectonics > Plate Tectonics (0.87)
- Electrical Industrial Apparatus (1.00)
- Energy > Oil & Gas > Upstream (0.66)
- North America > United States > Alabama > Molloy Field (0.98)
- North America > Canada > Alberta > French Field > Arl French 16-26-64-1 Well (0.98)
- Europe > Norway > North Sea > Northern North Sea > North Viking Graben > Troll Area > Block 35/11 > Fram Norway Field > Sognefjord Formation (0.97)
- (15 more...)
Tidal Simulation In the East China Sea With Finite Element Method
Li, L. (Oceanology Department, Marine Environment College, Ocean University of China) | Zuo, J.C. (Oceanology Department, Marine Environment College, Ocean University of China) | Li, P.L. (Oceanology Department, Marine Environment College, Ocean University of China)
ABSTRACT A finite element model, QUODDY model, is used to study the tides in the East China Sea, the Yellow Sea and the Bohai Sea in this paper. The simulation results fit well with the observation data. The cotidal charts of M2, S2, K1, O1and M4are given out. The result of this paper supports that the phase-lag of M2varies little at Laizhou Bay. INTRODUCTION The research on tide is a basic topic of the dynamic oceanography. It goes without saying that research on tide has important academic values because tide movement is dominant in the continent shelf oceanography. Observation in field is so hard that the numerical simulation is an important tool for study on tide. In tidal research fields, finite element model, which can fit boundaries better and control the mesh density at will, should be better than finite deference model, because the boundary and topography have important impacts on the tidal system. At present, the all of models that were used in the East China Sea (ECS) and the Yellow Sea were finite difference models. Finite element models should be tried to apply in the ECS and the Yellow Sea. In 1930's, the first cotidal charts of the ECS were published (Ogura, 1933). More exact cotidal charts were reported in 1964 in an unpublished report by Chinese scientists according to the observations during 1950's and early 1960's. From late 1970's, many paper were published on tide research by numerical models (An, 1977; Shen, 1980; Choi, 1980,1984,1989; Ding, 1984; Shen and Ye, 1985; Yanagi and Inoue, 1994; Zhao et al., 1994; Ye and Mei, 1995; Wan et al., 1998; Guo and Yanagi, 1998; Wang et al., 1999; Lee and Jung, 1999; Lin et al., 2000; Bao et al., 2001).
- Asia > Taiwan > East China Sea (0.89)
- Asia > South Korea > Yellow Sea (0.89)
- Asia > Japan (0.89)
- Asia > China > Bohai Basin (0.89)
ABSTRACT Seafloor massive sulfides found in the western Pacific have been considered to be potential Au, Ag, Cu, Zn, and Pb sources. The geological distribution characteristics of seafloor massive sulfides have been widely studied. However, physical and geotechnical properties such as density, porosity, strength, and hardness have not yet been clarified. We measured several geotechnical engineering properties and metal content of seafloor massive sulfide samples, and investigated for relationships among these properties and between them and the metal content. Several useful correlations were observed. The correlation between porosity and strength is easily recognized. INTRODUCTION Seafloor massive sulfides (SMS), which include metals such as gold (Au), silver (Ag), copper (Cu), zinc (Zn), and lead (Pb), have received much attention as a deep-sea mineral resource following manganese nodules and cobalt-rich manganese crusts (Lenoble, 2000). SMS are formed by hydrothermal processes associated with spreading centers of plate-techtonic activity (Rona, 1985). The geological distribution characteristics of the ocean ridge type SMS found in the Atlantic, Indian, East Pacific, and Red Sea areas have been studied by several researchers (Haymon and Kastner, 1981; Malahof, 1981; Hekinian et al., 1983; Rona et al., 1984; Hekinian and Bideau, 1985; Rona, 1985). In the late 1970s and early 1980s, SMS were considered to have potential as a source of Zn, Cu, and Ag (Amman, 1985; Rona, 1985; Nawab, 2001). In the western Pacific, since the end of the 1980s, the back-ark basin and oceanic island-ark types of SMS have been found. Remarkable ones are found in Okinawa Trough and Izu-Ogasawara Arc near Japan (Halbach et al., 1989; Kato, et al., 1989; Iizasa et al., 1999), Lau Basin and North Fiji Basin near Fiji (Fouquet et al., 1991; Bendel et al., 1993), and East Manus Basin near Papua New Guinea (Kia and Lasark, 1999).
- Asia > Middle East > Yemen (1.00)
- Asia > Middle East > Saudi Arabia (1.00)
- Africa > Middle East > Egypt (1.00)
- (2 more...)
- Oceania > Papua New Guinea > Bismarck Sea > Manus Basin (0.99)
- Oceania > New Zealand > South Pacific Ocean > Lau Basin (0.99)
- Oceania > Fiji > South Pacific Ocean > North Fiji Basin (0.99)
- (2 more...)
Motion Analysis On a Large FPSO In Shallow Water
Li, Xin (The State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) | Yang, Jianmin (The State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) | Xiao, Longfei (The State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University)
ABSTRACT In shallow water, the motion performance of a single point moored 320 kDWT FPSO is investigated in 100-year environment conditions with different water depths. The ratios of the water depths to the draft are within the range from 1.3 to 1.1. Both numerical calculation and experimental research are carried out in this paper. The results of the calculation and the model test are compared and analyzed. It is shown that with the decrease of the water depth, the wave frequency motions of the FPSO decrease obviously. The research result is expected to be used in optimizing design of the FPSO in the oil fields with shallow water. INTRODUCTION The need for oil increases rapidly during the past twenty years, which leads to world-wide demand for floating production and storage vessels. FPSO (Floating, Production, Storage and Offloading units) has been recently established as attractive alternative for the exploitation of offshore oil field because of its flexibility, reliability, the low cost and adapting for the variety of water depth. In China, there are 9 FPSOs working in the South China Sea, the East China Sea and the Bohai Bay. And the amount of FPSO is still growing (MaoYongjun, 1998). In China, so far the most attractive and abundant oil exploitation area is in the offshore of Bohai Bay, which is a shallow water area with the water depth of only about 20–30m. The added masses and damping coefficients are calculated by the linear 3-D potential theory and the wave frequency motions are determined by means of time-domain computations according to Cummins impulse response technique. The model tests in 100-year condition, including the collinear wind and wave and the crossed current, were carried out in the ocean engineering basin of the State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University.
- Asia > Taiwan > East China Sea (0.89)
- Asia > China > Bohai Basin (0.89)
ABSTRACT In the coming years, there will be a growing demand for Floating Production and Storage Units (FPSOs) for ultra deep waters (greater than 2,000 meters) worldwide. One of the issues in the design of FPSOs for these water depths will be the selection of the most cost-efficient station keeping system for the specified operational requirements. Standard solutions based on internal turret mooring systems are already being offered by the industry. However, beyond certain water depths, the technical and economical constraints associated with the use of mooring systems may favor other concepts potentially more attractive and cost-efficient, such as a fully dynamically positioned FPSO. This paper presents the preliminary results from a design study being undertaken by the authors and their respective organizations to develop such a system. The paper provides a description of the FPSO hull and station keeping system and the disconnectable turret-riser system developed specifically for this application. INTRODUCTION There is a growing demand for cost-effective and reliable floating production system concepts for ultra-deep water depths (greater than 2,000 meters). Floating, Production, Storage and Offloading (FPSO) systems are a mature floating production technology that is readily adaptable to deep water and is one of the floating production system of choice offshore Brazil and West Africa. Though there are currently no FPSOs in the deepwater Gulf of Mexico (GOM), the technical and economical limitations inherent to other type of concepts, the lack of pipeline infrastructure in ultra deep water, and the wide acceptance of the FPSO concept by Shelf Authorities should result in these systems being considered to be deployed in the near future. One of the critical issues in the design of FPSOs for ultra deep waters is the design of the most cost-efficient station keeping system for the specified operational requirements.
- Europe (0.94)
- North America > United States (0.68)
ABSTRACT This paper presents the experience accumulated by Saipem in modelling the deep water sealine installation by using the J-lay method, mainly as a result of the Blue Stream Project. This Project implied the installation of two sealines in the Black Sea at a world record water depth of about 2150 meters by using the new J-lay system on SSCV Saipem7000. The paper shows the results of the studies made in order to properly model the installation of a deep water pipeline by J-lay. These studies aimed at the development of an adequate installation analysis model and tools (specially developed three-dimensional FEM analysis inhouse program), and at the definition of the installation analysis methodology. Such methodology includes the analysis of the effects of vessel displacement (forward, backward, and lateral) with respect to the target (reference) position, of seabed slope and real profile, and also the dynamics effects due to environmental loads. INTRODUCTION The offshore industry is moving into more hostile and deeper waters with exploration and oil field development and with gas trunklines crossing deep seas, as the Mediterranean Sea and recently the Black Sea. Saipem Group is in the forefront of such challenges by performing successfully the Blue Stream Project, undoubtedly the most significant deep water pipeline project ever attempted because of the difficulties in terms of design, construction, organization and logistics. Such demanding Project required important engineering efforts for both design and installation engineering, including the development of new design methodologies and tools, especially for the ultra deep section of the pipeline installed by using the new J-lay system on SSLV Saipem 7000. This paper presents the experience accumulated by Saipem, mainly as a result of the Blue Stream Project, in modelling the deep water sealines installation by using the J-lay method.
- Europe (0.94)
- North America > United States (0.46)
Sea Ice Draft Profile On Okhotsk Sea Coast of Hokkaido
Yamamoto, Y. (Civil Engineering Research Institute of Hokkaido) | Kioka, S. (Civil Engineering Research Institute of Hokkaido) | Sakikawa, M. (Civil Engineering Research Institute of Hokkaido) | Honma, D. (Civil Engineering Research Institute of Hokkaido)
ABSTRACT Sea ice surveys are conducted along the Okhotsk Sea coast of Hokkaido, Japan using a bottom-mounted IPS and ADCP. This paper reports on the analysis of a 180km long "ice draft profile" of deformed pack ice moving past the mooring site in 2001. The maximum draft during the observation period was 3.6 m. Although the ice draft profile as a wave profile has non-stationary characteristics, the normalized power spectrums of the profile in locally stationary span were roughly the same and the peak wavelength was approximately 100 m. In addition, simulation methods for deformed sea ice draft depth and plane unevenness of sea ice bottom by using one-point measurement data as in this measurement are also discussed. INTRODUCTION The Okhotsk Sea coast of Hokkaido is known as the southern limit of sea ice, which forms in high-latitude waters and arrives at Hokkaido between January and March every year. When designing and constructing offshore/coastal structures, pipelines and other underwater and buried structures or winter navigation through pack ice, interaction with sea ice must be fully taken into consideration. It is also necessary to acquire information on the ice draft profile or plane unevenness of ice bottom, ice thickness distribution and pack ice properties in advance for oil spill contingency plans such as prediction of the diffusion range or recovery of oil in ice-infested waters. In particular, with the recent progress of oil and natural gas development along the Sakhalin continental shelf, transport of oil and natural gas to Japan by pipelines and vessels as well as accompanying oil spills or other accidents are expected in the future. Increased understanding of ice conditions in Okhotsk Sea coast of Hokkaido and other engineering studies concerning the above issues will therefore be increasingly necessary in the future.
- Asia > Japan > Hokkaidō (1.00)
- Asia > Russia > Far Eastern Federal District > Sakhalin Oblast (0.25)
- Asia > Russia > Far Eastern Federal District > Sea of Okhotsk > Sea of Okhotsk Basin (0.89)
- Asia > Japan > Yamamoto Field (0.89)
Which Stage Does the AUV “URASHIMA” Evolve?
Hyakudome, Tadahiro (Japan Marine Science and Technology Center (JAMSTEC)) | Aoki, Taro (Japan Marine Science and Technology Center (JAMSTEC)) | Murashima, Takashi (Japan Marine Science and Technology Center (JAMSTEC)) | Tsukioka, Satoshi (Japan Marine Science and Technology Center (JAMSTEC)) | Yoshida, Hiroshi (Japan Marine Science and Technology Center (JAMSTEC)) | Nakajoh, Hidehiko (Japan Marine Science and Technology Center (JAMSTEC)) | Ida, Tadahiko (Japan Marine Science and Technology Center (JAMSTEC)) | Maeda, Toshio (Mitsubishi Heavy Industries) | Hirokawa, Kiyoshi (Mitsubishi Heavy Industries) | Ichikawa, Takuji (Mitsubishi Heavy Industries) | Ishibashi, Shoujirou (Tokyo University of Mercantile Marine) | Sasamoto, Ryoko (Tokyo University of Mercantile Marine)
ABSTRACT A deep and long cruising range AUV URASHIMA has been developed by JAMSTEC since 1998. URASHIMA carries out the development in the 7 years plan from 1998 to 2004. The body of the vehicle is completed in 2000, and then various functional tests are carried out in the sea-going tests. The first stage of development from 2000 to 2002, the vehicle uses Lithium-ion rechargeable battery for power source. The equipments, hard-wear, soft-wear, navigation system and autonomous functions improved gradually in the first stage. As results of the first stage, the vehicle dived to 3,518m depth, and transmitted fine pictures via acoustic communication and it achieved 132.5km cruising by autonomous navigation mode. INTRODUCTION JAMSTEC was established in October 1971. Since then JAMSTEC has kept growing and engaging in ocean research and technological development activities for understanding the mechanism of the global environmental fluctuation. Recently, the global warming has become serious problem. In order to make clear the mechanism of global warming, it is necessary to study circulation and perturbation of the ocean. Particularly pole region is remarkable area of global environmental fluctuation. For this purpose, many oceanographic scientists want to gather efficiently a lot of seawater data and water samples of various area and depth all over the world. The missions require the autonomous underwater vehicle which collects data and samples automatically. So, we have started research and development project of AUV for performing long cruising range observation. A deep and long cruising AUV "URASHIMA" (Code name: AUV-EX1) has been developed since 1998. The development purpose is in order to gather efficiently a lot of seawater data and seawater samples of various area and depth all over the world. The body of the vehicle was completed in 2000, and then various functional tests were carried out in sea-going tests.
- Asia > Japan (0.29)
- North America > United States (0.28)
- Energy > Energy Storage (1.00)
- Electrical Industrial Apparatus (1.00)
ABSTRACT This paper aims to review the key design features of a number of dry tree production riser systems, and to discuss and compare, by examples, the critical design areas in terms of extreme stress response, fatigue, and riser-riser clearance analysis. The paper also summarises the essential analytical techniques required to predict the dynamic behaviour of these riser systems. INTRODUCTION Dry tree production systems are continually being evaluated, selected and installed for deepwater developments worldwide. Each of these systems involves a floating host platform to facilitate tieback of the seabed wells, via top tensioned production risers, to a dry environment on the vessel where the pressure controlling Christmas trees are situated. Drilling and intervention facilities are selectively provided on the vessel to take advantage of the direct accessibility of the wells located below the production platform. This eliminates the need to mobilise specialist vessels for drilling and workover activities. Different hull configurations have been used including tension leg platform (TLP) and Spar; and more are being proposed: barge, deep draught jack-up, etc. Each vessel has its own requirements for the design of the riser system because of the way risers can be supported and guided in the vessel; vessel motion characteristics; and riser tensioning and installation methods. The varied design requirements thus impose different loading conditions on the risers, leading to different critical load areas and riser component designs. This paper presents an overview of key design features for three types of top tensioned production riser systems. The methods used to accurately predict riser response are also discussed and highlight the challenges of riser design. DRY TREE PRODUCTION VESSELS AND RISER SYSTEMS General The TLP is moored by its tendons, but the Spar and barge are usually spread moored by a taut mooring system to reduce the vessel excursions.
- North America > United States (0.68)
- Europe > United Kingdom > North Sea (0.28)
- North America > United States > Gulf of Mexico > Central GOM > East Gulf Coast Tertiary Basin > Atwater Valley > Block 618 > Neptune Field (0.99)
- North America > United States > Gulf of Mexico > Central GOM > East Gulf Coast Tertiary Basin > Atwater Valley > Block 617 > Neptune Field (0.99)
- North America > United States > Gulf of Mexico > Central GOM > East Gulf Coast Tertiary Basin > Atwater Valley > Block 575 > Neptune Field (0.99)
- (4 more...)