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71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009
- Conference date: 08 Jun 2009 - 11 Jun 2009
- Location: Amsterdam, Netherlands
- ISBN: 978-90-73781-67-2
- Published: 08 June 2009
61 - 80 of 585 results
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3D Non-linear Anisotropic Diffusion Filtering for Noise Removal and Image Enhancement
More LessIn this paper we present the application of Eni's 3D non-linear anisotropic diffusion filter to 3D depth migrated seismic data. The implementation of the filter is based on the full diffusion equation, i.,e., it supports non-linear, adaptive, and steered
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Amplitude-preserving Calibration of PP- and PS-wave Reflection Events
More LessThis paper presents a PP- and PS-wave calibration method based on the accurate estimation of the time-variant velocity ratio. The PS-wave amplitude is then recovered through applying a stretch-correction method. Given an initial VP-to-VS ratio model, we i
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High Resolution Acoustic Records for Detection of Main Geohazards in Development of Hydrocarbon Fields in Arctic Seas
Authors I. E. Balanyuk, A. N. Dmitrievsky and S. M. ShapovalovA considerable attention is paid for research with seismic acoustic methods of the modern sedimentation of the Barents Sea region which is important for development of reliable criteria for the sea bed stability. The major processes that controlled a str
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Detection and Analysis of Near-surface Layer Effects in Land Seismic Exploration
More LessThe effects of near-surface layers in land seismic exploration had been known long before. However, previous studies mainly focused on statics brought by propagation through near-surface layers (from the kinematics point of view), and only some surface-co
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Data Management for Well Complexity Analysis on North Sea Wells
Authors S. Valipour Shokouhi and P. SkalleOne of the most important requirements of any good drilling operation is efficient hole cleaning. Produced particles have to be transported to the surface without leading to other problems. Otherwise, it culminates in difficulties such as tight-hole, pack
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Global Hydrocarbon Reserves, Production and Consumption
Authors P. Chungkham and D. ArbouilleDistribution of hydrocarbon remaining reserves, reserves addition, annual production and consumption across the globe by geological provinces, countries and regions shows some interesting and highly imbalance scenarios. Such simple analyses would help in
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Improving Data Integration by Means of XML
Authors R. A. Iushchenko, O. K. Iushchenko and V. G. TulchinskyA problem of geoscience end exploration data interoperability is discussed. Modern data exchange formats are mostly based on XML because of its mobility, structure representation power and excellent program interfaces. However, real application data are s
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Geographic Information System – An Application to Manage Geophysical Data
Authors M. Giustiniani, A. Accettella, M. Loreto, U. Tinivella and F. AccainoIn this study, we show an application of Geographical Information System (GIS) for managing geophysical data acquired in along the South Shetland Margin (Antarctic Peninsula). The dataset has been acquired in the frame of two projects regarding the integr
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Petrophysical Study on Selection of Potential Layers for Hydraulic Fracturing Operation
Authors B. Habibnia and S. R. ShadizadehHydraulic fracturing is a process applied to boreholes to improve the ability of reservoir fluids to flow towards the hole and be recovered. Fractures can play a very important role in the productivity of low permeability formations. Ahwaz oil field is on
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Effect of Average Intersection Per Line on Connectivity in Fractured Reservoir, Using Percolation Theory
Authors A. Hashemi, S. Ghorbani and M. MasihiThe knowledge of the connectivity across the reservoir not only helps to find out the potential oil recovery within a particular well configuration but also affects on the other reservoir engineering decisions such as infill drilling. Connectivity also co
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An Integrated Geomechanics, Rock Physics and Seismic Model
Authors E. Fjær and T. G. KristiansenA screening tool for simulation of expected 4D seismic effects in connection to a depleting reservoir is described. A few examples of how the model can be used to interpret seismic observations are given. These include the development of traveltime shift
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CO2CRC/Otway Project – Influence of Geological and Reservoir Parameters on Expected Time-lapse Seismic Signal
Authors A. Gendrin, M. Urosevic, S. Bouquet, H. Bernth, P. Wisman, D. Labragere and M. VerliacIn the field of CO2 storage, one important goal is to be able to prove that the injected CO2 is safely stored, and that no leak is occurring. Time-lapse seismic is one of the most powerful tools available for this purpose. However, it is generally used in
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How Small Is a Small 4D Signal – A Model Study for 4D Resolution
Authors J. H. Y. Yu and J. ThiebaudWith the maturation of 4D seismic, legacy 3D data are replaced by purposely-shot conventional 3D surveys with multiple monitors and short time separation to follow the impact of production. Furthermore, permanent seismic installation like has been proven
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Well Performance Analysis Using 4D Seismic
Authors M. Nickel and L. SonnelandIn this paper a methodology is presented that may allow to detect an over-pressured region in the overburden which was induced from an injector well. Increased pore pressure in the overburden results in decreased velocities which may affect the time-laps
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A Comparison of Passive Seismic Monitoring of Fracture Stimulation Due to Water Versus CO2 Injection
Authors J. Verdon, S. C. Maxwell and J. M. KendallThe principal observation from passive seismic monitoring at the Weyburn CCS/EOR project has been a very low rate of microseismicity. This has lead to the suggestion that, as CO2 has a higher compressibility, when injected it will have a lower seismic eff
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To a Cost Effective Approach for Monitoring CO2 Storage Sites
Authors V. P. Vandeweijer, T. Benedictus, P. L. A. Winthaegen and F. BergenSubsurface storage of CO2 is regarded as one of the options to reduce the impact of human activity on climate change. In order to ensure save, long-term storage of CO2, a storage site has to meet requirements concerning health, safety and environment. Pe
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Interpretive Processing – Combining Data Driven Velocity Modelling and Geological Knowledge for Seismic Imaging
Authors J. K. Fruehn, R. Bastia, N. Kettouche and I. F. JonesImaging off the east coast of India poses a specific set of challenges for velocity model building and the migration. Significant topographical variation in the sea bed gives rise to numerous effects which must be dealt with starting with the water veloci
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First Arrival Traveltime Tomography for Complex Near-surface Velocity Structures
Authors M. S. Noble, C. Taillandier and H. ChaurisClassical algorithms used for travel time tomography are not necessarily well-suited for handling very large seismic data sets, densely parameterized velocity models and for taking advantage of current supercomputers architecture. We revisit the classical
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Channel Tomography
Authors G. Conroy and R. LeggottShallow channels in the North Sea and other areas can present significant problems for PreSDM model building. We present a fully ray-traced tomographic approach to channel modelling that handles multiple offsets and horizons to solve for a laterally-vari
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Kinematically Equivalent Factorized Models
By A. M. StovasWithin the framework of factorized model, there is a family of kinematically equivalent velocity models resulting in uncertainties in inverted model parameters and other kinematical characteristics.
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