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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
101 - 120 of 585 results
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Wave Equation Multiple Modeling and Its Application to South China Sea Data
More LessThe South China Sea is the most extensive marine seismic survey area in China today. Because there exist various types of multiples with complex features in some seismic exploration blocks, one of the key challenges for marine seismic data processing is t
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Extension of MPI Scheme for the Internal-multiple Prediction
More LessIn this paper we extend the scheme of multiple prediction through inversion (MPI) from free-surface multiple prediction to the internal-multiple prediction. The MPI scheme builds the multiple model not by spatial convolution but by updating the attenuated
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Modified Multichannel Matching Filters for Seismic Multiple Attenuation
More LessIn seismic multiple attenuation, multichannel matching filters are used for multiple subtraction. In this paper, we change the conventional “neighbouring traces” constraints into the “neighbouring operators” constraints. The latter can trail off the depen
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On the Free Surface Assumption for Marine Data Driven Demultiple Methods
Authors M. O. Frijlink, R. G. Van Borselen and W. SollnerIn the past, integral formulations for marine data driven demultiple methods have been derived from reciprocity theorems. Two fundamental assumptions in these derivations were that the sea surface is flat and has a known reflection coefficient, often take
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Swell-noise Attenuation Using an Iterative FX Prediction Filtering Approach
Authors M. A. Schonewille, A. K. Vigner and A. J. RyderSwell noise is a common problem for towed streamer data. A straightforward approach to remove this noise, is to apply FX filtering to the frequency range where the noise is present, and replace noisy traces with their FX filtered versions for these freque
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ICA Separation for Improving Multiple Subtraction
Authors D. Donno, F. Rocca and E. LoingerThe suppression of multiple events is a crucial task in seismic data processing, and the removal of the predicted multiples from real data is recognized as one of the main challenges for the success of the SRME technique. The traditional least-squares mat
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The Use of Array-forming With or Without Other Filters Applied on Seismic Single-sensor Data
By I. PaneaModelling results showed that the effectiveness of the use of hard-wired arrays in the attenuation of the surface waves and aliased energy is lower comparing to that one provided by the combination of two algorithms, namely the standard array-forming and
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Surface Waveform Tomography Across the Arabian-Eurasian Plate Boundary, Zagros Belt
Authors N. Shad Manaman and H. ShomaliCompared with other more evolved plate boundaries, little is known about the deep lithospheric structure of Zagros belt, such as fate of subducted Neo-Tethys plate and existence of deeply earthquakes. We use the Partitioned Waveform Inversion method to im
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Structure and Development Stages of Chuya Earthquake Aftershock Process, Mountain Altai
Authors A. A. Emanov, A. F. Emanov, E. V. Leskova and A. V. FateevSpace-time structure of Chuya earthquake aftershock process is detailed understood, based on a study with temporal station network. Spatial components of aftershock area, divided by vertical slack zones and confined to different blocks of the Earth’s crus
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Elasticity Tensor Inversion from Spherical Sample Measurements
Authors A. Bóna, D. Nadri and M. BrajanovskiFrom the P-wave traveltime measurements over a spherical shale sample at 40 MPa we find the symmetry axis. We transform the ray velocities from the measurement coordinate system to the symmetry axis coordinate system. Assuming transverse isotropy symmetry
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Constraining Fracture Geometry from Shear-wave Splitting Measurements of Passive Seismic Data
Authors J. Verdon and J. M. KendallSeismic anisotropy can be caused by the presence of aligned fractures. The imaging of fracture sets using anisotropy is a valuable tool for guiding drilling strategies. Shear wave splitting (SWS) is probably the most unambiguous indicator of anisotropy. C
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Geology and Petroleum System of Pishin Basin, Pakistan
Authors R. A. Saddique and R. AhmadIn Pishin frontier basin of Pakistan, there could be a high potential for Tertiary petroleum system to be effectively operating in the same manner as in the Burma’s Irrawaddy basin. The basin owes its origin after the subduction of Indo-Pak plate under th
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Middle Caspian Mesozoic Petroleum System – Terrigenous Source-Rocks and Carbonate Reservoirs
More LessDepositional environment change through out Jurassic - Cretaceous within western flank of the Middle Caspian basin (the Plain Dagestan in the north, coastal Premountain Dagestan and north-east Azerbaijan) was one of the main controls on the accumulation
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Zechstein Petroleum System in the Western Pomerania, NW Poland
Authors P. Kosakowski, M. J. Kotarba and M. WrobelThe Western Pomerania is located in northwestern part of the Polish Permian Basin. The Main Dolomite source rocks reveal poor to fair, and locally very good to excellent oil-source potential.. The maturity of oil-prone organic matter (type II kerogen) ran
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Paleozoic Source Rocks in the Dniepr-Donets Basin, Ukraine
Authors R. F. Sachsenhofer, A. Bechtel, D. Reischenbacher and V. A. ShymanovskyyThe Dniepr-Donets Basin (DDB) is a major hydrocarbon province in eastern Europe. Moreover organic-rich sediments in the DDB may offer a shale gas potential. However, only limited data on source rocks are available. Within the frame of the present study, a
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Hydrocarbon Entrapment in the East of the Moesian Platform
Authors C. Pene, B. Niculescu and O. ColtoiThe correlation of some seismic profiles and well data helped to derive a tectonic model and a hydrocarbon generation model for the eastern part of the Moesian Platform. The particular feature in the study area is the hydrocarbon entrapment especially in
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Three-dimensional Structural Modelling in the Swiss-French Jura Mountains
Authors C. Turrini and K. DupsThe Jura Mountains represent the external domain of the north-western Alps. Thrusted folds, related to a basal detachment surface at the base of the Triassic, are the main structures in the region. The derived outcropping structures define a clear ENE-WSW
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Timing and Extent of Petroleum Processes in Lower Paleozoic Petroleum System in Western Part of the Baltic Basin
Authors M. Wróbel, M. J. Kotarba and P. KosakowskiThe late Paleozoic stratigraphic section is the most oil-producing system in the Baltic Basin, with more then 40 years history of petroleum exploration and production and still remains a very active exploration area. The hydrocarbon potential of the Balti
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Investigating a Relationship of Elastic Wave Velocity vs. Temperature of Rocks Containing Heavy Oil
Authors A. E. Sobolev, M. V. Chertenkov, A. A. Alabushin and A. N. KasimovHeavy oil production thermal methods and, first of all, steam injection are considered as traditional methods. Whereas the technology of steam influence on a bed is rather power-consuming and demands large material cost, there is a need to control the pro
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Estimation of Azimuthal Anisotropy from VSP Data Using Multicomponent Velocity Analysis
Authors R. Pevzner, B. Gurevich and G. DuncanObservation of azimuthal shear wave anisotropy can be useful for characterisation of fractures or stress field. Shear wave anisotropy is often estimated by measuring splitting of individual shear-wave events on VSP data; however this method may become un
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