North Sea Oil and Gas Reservoirs--II : Proceedings of the 2nd North Sea Oil and Gas Reservoirs Conference organized and hosted by the Norwegian Institute of Technology (NTH), Trondheim, Norway, May 8-11, 1989

The first North Sea Oil and Gas Reservoirs Conference was held in Trondheim in 1985 as part of the Norwegian Institute of Technology's 75th anniversary celebrations. Favourable reactions from the delegates prompted the Committee to re-run the event some three and a half years later, and it is now intended that the Confe­ rence be held on a regular basis as long as there is a demand for this type of gathering. The objectives of the 1989 Conference, which were broadly similar to those of the previous one, were: (a) to bring together those engaged in various geoscientific and reservoir engineering aspects of North Sea Oil and gas reservoirs in one forum; (b) to demonstrate wherever poSsible the interdependence of the various disciplines and specializations; (c) to promote innovative, synergistic approaches to research and development programmes aimed at North Sea conditions; and (d) to reflect current trends in the reservoir sciences. Naturally there was no place for specialist parallel sessions in a Conference aimed at encouraging interdisciplinary integration and awareness. Front Matter....Pages i-ix The Forties Field and the Evolution of a Reservoir Management Strategy....Pages 1-23 Fulmar: The Development of a Large North Sea Field....Pages 25-45 The Tyra Field....Pages 47-65 The Gullfaks Field: Geology and Reservoir Development....Pages 67-90 I. Stochastic Modelling of Reservoir Sand Bodies for Input to Reservoir Simulation, Snorre Field, Northern North Sea, Norway....Pages 91-101 II. Reservoir Simulation of the Snorre Field....Pages 103-114 Reservoir Characterization from Crosshole Seismic: New Directions....Pages 115-124 Use of Seismic Attributes in Reservoir Characterization....Pages 125-128 Experiences Gained using a Seismic Inversion Method for Detailed Reservoir Studies....Pages 129-137 Some Requirements from Seismic Methods for Use in Reservoir Simulation Models....Pages 139-146 Stratigraphie Processing of 3D Seismic by Concurrent Analysis of Surface and Borehole Data....Pages 147-154 Frigg Field Reservoir Management....Pages 155-163 Analysis of Formation Water Sampled from Core....Pages 165-171 Establishment of a Geological Fracture Model for Dual Porosity Simulations on the Ekofisk Field....Pages 173-184 A New Approach to Production Log Analysis....Pages 185-199 The Geotechnical Characteristics of Weak North Sea Reservoir Rocks....Pages 201-211 The Effect of Low-Permeability Layers on Oil Production from Vertical and Horizontal Wells in the Troll Field....Pages 213-221 Statistical Approach to the Computer Modelling of Hydraulic Fracturing in Hydrocarbon Reservoirs....Pages 223-227 Quantitative Determination of Pore Structure and Application to Fluid Displacement in Reservoir Rocks....Pages 229-243 Comparison between Laboratory Experiments and Detailed Simulations of Unstable Miscible Displacement Influenced by Gravity....Pages 245-250 Relationship between Azimuths of Flood Anisotropy and Local Earth Stresses in Oil Reservoirs....Pages 251-260 Tracer Tests in Oil Appraisal and Reservoir Evaluation: State of the Art....Pages 261-270 Immiscible Displacement in a Porous Medium Simulated by a Statistical Model....Pages 271-280 Ekofisk Field Enhanced Recovery....Pages 281-295 Pseudofunctions — The Key to Practical Use of Reservoir Description....Pages 297-308 A Method for Estimation of the Density of Fault Displacements below the Limits of Seismic Resolution in Reservoir Formations....Pages 309-318 Determination of Petroleum Accumulation Histories: Examples from the Ula Field, Central Graben, Norwegian North Sea....Pages 319-330 Lateral Extent of Calcite-cemented Zones in Shallow Marine Sandstones....Pages 331-336 Sand Body Dimensions and Infill Sequences of Stable, Humid-Climate Delta Plain Channels....Pages 337-351 The Connectivity and Conductivity of Overlapping Sand Bodies....Pages 353-362 SESIMIRA—A New Geological Tool for 3D Modelling of Heterogeneous Reservoirs....Pages 363-371 A Computer Program for Evaluation of Fluvial Reservoirs....Pages 373-385 HEX — A Tool for Integrated Fluvial Architecture Modelling and Numerical Simulation of Recovery Processes....Pages 387-397 An Integrated Software for Stochastic Modelling of Reservoir Lithology and Property with an Example from the Yorkshire Middle Jurassic....Pages 399-406 How Geostatistics Helps Decisions on Complementary Development....Pages 407-414 Hybrid Modelling of Heterogeneity to Improve 3D Simulation Results: Case Studies 1 and 2 on a North Sea Gas Field....Pages 415-424 A Stochastic Reservoir Model and its Use in Evaluations of Uncertainties in the Results of Recovery Processes....Pages 425-436 The Movement of Oil Initially Bypassed behind Stochastic Shale Barriers....Pages 437-444 Practical Application of Super-computing in Black-Oil Reservoir Simulation....Pages 445-453