The Experts below are selected from a list of 134907 Experts worldwide ranked by ideXlab platform
Kjell Aleklett - One of the best experts on this subject based on the ideXlab platform.
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giant Oil Field decline rates and their influence on world Oil production
Energy Policy, 2009Co-Authors: Mikael Höök, Robert L Hirsch, Kjell AleklettAbstract:The most important contributors to the world's total Oil production are the giant Oil Fields. Using a comprehensive database of giant Oil Field production, the average decline rates of the world's ...
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giant Oil Field decline rates and their influence on world Oil production
Energy Policy, 2009Co-Authors: Mikael Höök, Robert L Hirsch, Kjell AleklettAbstract:The most important contributors to the world's total Oil production are the giant Oil Fields. Using a comprehensive database of giant Oil Field production, the average decline rates of the world's giant Oil Fields are estimated. Separating subclasses was necessary, since there are large differences between land and offshore Fields, as well as between non-OPEC and OPEC Fields. The evolution of decline rates over past decades includes the impact of new technologies and production techniques and clearly shows that the average decline rate for individual giant Fields is increasing with time. These factors have significant implications for the future, since the most important world Oil production base - giant Fields - will decline more rapidly in the future, according to our findings. Our conclusion is that the world faces an increasing Oil supply challenge, as the decline in existing production is not only high now but will be increasing in the future.
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The Evolution of Giant Oil Field Production Behavior
Natural Resources Research, 2009Co-Authors: Mikael Höök, Bengt Söderbergh, Kristofer Jakobsson, Kjell AleklettAbstract:The giant Oil Fields of the world are only a small fraction of the total number of Fields, but their importance is huge. Over 50% of the world’s Oil production came from giants by 2005 and more than half of the world’s ultimate reserves are found in giants. Based on this, it is reasonable to assume that the future development of the giant Oil Fields will have a significant impact on the world Oil supply. In order to better understand the giant Fields and their future behavior, one must first understand their history. This study has used a comprehensive database on giant Oil Fields in order to determine their typical parameters, such as the average decline rate and life-times of giants. The evolution of giant Oil Field behavior has been investigated to better understand future behavior. One conclusion is that new technology and production methods have generally led to high depletion rates and rapid decline. The historical trend points towards high decline rates of Fields currently on plateau production. The peak production generally occurs before half the ultimate reserves have been produced in giant Oil Fields. A strong correlation between depletion-at-peak and average decline rate is also found, verifying that high depletion rate leads to rapid decline. Our result also implies that depletion analysis can be used to rule out unrealistic production expectations from a known reserve, or to connect an estimated production level to a needed reserve base.
Mikael Höök - One of the best experts on this subject based on the ideXlab platform.
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giant Oil Field decline rates and their influence on world Oil production
Energy Policy, 2009Co-Authors: Mikael Höök, Robert L Hirsch, Kjell AleklettAbstract:The most important contributors to the world's total Oil production are the giant Oil Fields. Using a comprehensive database of giant Oil Field production, the average decline rates of the world's ...
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giant Oil Field decline rates and their influence on world Oil production
Energy Policy, 2009Co-Authors: Mikael Höök, Robert L Hirsch, Kjell AleklettAbstract:The most important contributors to the world's total Oil production are the giant Oil Fields. Using a comprehensive database of giant Oil Field production, the average decline rates of the world's giant Oil Fields are estimated. Separating subclasses was necessary, since there are large differences between land and offshore Fields, as well as between non-OPEC and OPEC Fields. The evolution of decline rates over past decades includes the impact of new technologies and production techniques and clearly shows that the average decline rate for individual giant Fields is increasing with time. These factors have significant implications for the future, since the most important world Oil production base - giant Fields - will decline more rapidly in the future, according to our findings. Our conclusion is that the world faces an increasing Oil supply challenge, as the decline in existing production is not only high now but will be increasing in the future.
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The Evolution of Giant Oil Field Production Behavior
Natural Resources Research, 2009Co-Authors: Mikael Höök, Bengt Söderbergh, Kristofer Jakobsson, Kjell AleklettAbstract:The giant Oil Fields of the world are only a small fraction of the total number of Fields, but their importance is huge. Over 50% of the world’s Oil production came from giants by 2005 and more than half of the world’s ultimate reserves are found in giants. Based on this, it is reasonable to assume that the future development of the giant Oil Fields will have a significant impact on the world Oil supply. In order to better understand the giant Fields and their future behavior, one must first understand their history. This study has used a comprehensive database on giant Oil Fields in order to determine their typical parameters, such as the average decline rate and life-times of giants. The evolution of giant Oil Field behavior has been investigated to better understand future behavior. One conclusion is that new technology and production methods have generally led to high depletion rates and rapid decline. The historical trend points towards high decline rates of Fields currently on plateau production. The peak production generally occurs before half the ultimate reserves have been produced in giant Oil Fields. A strong correlation between depletion-at-peak and average decline rate is also found, verifying that high depletion rate leads to rapid decline. Our result also implies that depletion analysis can be used to rule out unrealistic production expectations from a known reserve, or to connect an estimated production level to a needed reserve base.
Robert L Hirsch - One of the best experts on this subject based on the ideXlab platform.
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giant Oil Field decline rates and their influence on world Oil production
Energy Policy, 2009Co-Authors: Mikael Höök, Robert L Hirsch, Kjell AleklettAbstract:The most important contributors to the world's total Oil production are the giant Oil Fields. Using a comprehensive database of giant Oil Field production, the average decline rates of the world's giant Oil Fields are estimated. Separating subclasses was necessary, since there are large differences between land and offshore Fields, as well as between non-OPEC and OPEC Fields. The evolution of decline rates over past decades includes the impact of new technologies and production techniques and clearly shows that the average decline rate for individual giant Fields is increasing with time. These factors have significant implications for the future, since the most important world Oil production base - giant Fields - will decline more rapidly in the future, according to our findings. Our conclusion is that the world faces an increasing Oil supply challenge, as the decline in existing production is not only high now but will be increasing in the future.
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giant Oil Field decline rates and their influence on world Oil production
Energy Policy, 2009Co-Authors: Mikael Höök, Robert L Hirsch, Kjell AleklettAbstract:The most important contributors to the world's total Oil production are the giant Oil Fields. Using a comprehensive database of giant Oil Field production, the average decline rates of the world's ...
Ohm, Sverre Ekrene - One of the best experts on this subject based on the ideXlab platform.
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Repeated post-Caledonian intra-cratonic rifting in the central North Sea: Evidence from the volcanic record in the Embla Oil Field
'Elsevier BV', 2018Co-Authors: Lundmark, Anders Mattias, Gabrielsen, Roy Helge, Strand Tor, Ohm, Sverre EkreneAbstract:Intrusive and extrusive mafic igneous rocks in the Embla Oil Field, central North Sea, testify to repeated post-Caledonian magmatism on the northern flank of the Mid North Sea High. The igneous rocks are highly clay- and carbonate-altered, but retain their High Field Strength element signatures on the sample scale. These signatures are used to group, classify and investigate the tectonic significance of the rocks. Three magmatic events are identified. Late Devonian transitional basalts are interpreted as part of a bimodal volcanic assemblage that includes ca. 375 Ma alkali rhyolites, suggested to record rifting in a proto-Central Graben. Early Permian volcanic and hypabyssal alkaline rocks in the Embla Oil Field display lamprophyric traits and represent low degree melts. They likely correlate either to ca. 300 Ma lamprophyre magmatism leading up to, or 298-292 Ma alkaline magmatism in the Midland Valley - Southern Uplands coeval with the northwest European magmatic flare-up at the Permo-Carboniferous boundary. Kimmeridgian-Tithonian submarine tholeiitic basalts in the Embla Oil Field post-date the alkaline continental mid Jurassic magmatism associated with doming and initial rifting in the North Sea, and are suggested to represent a hitherto unknown volcanic expression of the late Jurassic main rift phase in the Central Graben
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Repeated post-Caledonian intra-cratonic rifting in the central North Sea: Evidence from the volcanic record in the Embla Oil Field
'Elsevier BV', 2017Co-Authors: Lundmark, Anders Mattias, Gabrielsen, Roy Helge, Strand Tor, Ohm, Sverre EkreneAbstract:Intrusive and extrusive mafic igneous rocks in the Embla Oil Field, central North Sea, testify to repeated post-Caledonian magmatism on the northern flank of the Mid North Sea High. The igneous rocks are highly clay- and carbonate-altered, but retain their High Field Strength element signatures on the sample scale. These signatures are used to group, classify and investigate the tectonic significance of the rocks. Three magmatic events are identified. Late Devonian transitional basalts are interpreted as part of a bimodal volcanic assemblage that includes ca. 375 Ma alkali rhyolites, suggested to record rifting in a proto-Central Graben. Early Permian volcanic and hypabyssal alkaline rocks in the Embla Oil Field display lamprophyric traits and represent low degree melts. They likely correlate either to ca. 300 Ma lamprophyre magmatism leading up to, or 298-292 Ma alkaline magmatism in the Midland Valley - Southern Uplands coeval with the northwest European magmatic flare-up at the Permo-Carboniferous boundary. Kimmeridgian-Tithonian submarine tholeiitic basalts in the Embla Oil Field post-date the alkaline continental mid Jurassic magmatism associated with doming and initial rifting in the North Sea, and are suggested to represent a hitherto unknown volcanic expression of the late Jurassic main rift phase in the Central Graben.acceptedVersio
A. S. Cullick - One of the best experts on this subject based on the ideXlab platform.
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Optimal Planning and Scheduling of Offshore Oil Field Infrastructure Investment and Operations
Industrial & Engineering Chemistry Research, 1998Co-Authors: Ramaswamy R. Iyer, Ignacio E. Grossmann, Sriram Vasantharajan, A. S. CullickAbstract:A multiperiod mixed-integer linear programming (MILP) model formulation is presented for the planning and scheduling of investment and operation in offshore Oil Field facilities. The formulation employs a general objective function that optimizes a selected economic indicator (e.g., net present value). For a given planning horizon, the decision variables in the model are the choice of reservoirs to develop, selection from among candidate well sites, the well drilling and platform installation schedule, capacities of well and production platforms, and the fluid production rates from wells for each time period. The formulation incorporates the nonlinear reservoir performance, surface pressure constraints, and drilling rig resource constraints. The resulting MILP model contains several thousand binary variables and is intractable using a full space branch and bound technique. A sequential decomposition strategy using aggregation of time periods and wells, followed by successive disaggregation, is proposed. Two examples are presented to illustrate the performance of the algorithm.
