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Seismic Survey Technologies
Guidelines for Authors
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T.V. Nefedkina¹, A.M. Aizenberg¹, E.Z. Rakshaeva², R.I. Vilegzhanin², P.A. Lykhin²
Using effective reflection coefficients for long-offset AVO inversion of PP-reflections
Conventional AVO inversion workflow exploits linearized plane-wave reflection coefficients. Its application is limited to relatively plane interfaces, weak parameter contrasts and moderate incidence angles. It is also known that these coefficients are insensitive to the interface curvatures and break down at the near-critical off sets where the head wave is generated, as well as at the post-critical off sets where reflected and head waves interfere. In the paper, we utilize the effective reflection coefficients that generalize the plane-wave reflection coefficients for curved interfaces, non-plane waves and seismic frequencies. Using a synthetic data example, we have demonstrated that the theoretical description of an actual reflection from a curved interface is fully applicable in AVO inversion.
¹Trofimuk Institute of Petroleum Geology and Geophysics, SB RAS 630090, Novosibirsk, Pr. Academicа Koptyugа, 3, Russia; e-mail:
²Novosibirsk State University 630090, Novosibirsk, Pirogova, 2, Russia; e-mail:
G.M. Goloshubin, E.A. Chabyshova
Converted slow waves in heterogeneous permeable fluid-saturated medium
The seismic modeling is used to highlight a role of slow converted P-waves in forming the reflection properties of a heterogeneous permeable gas-saturated layer. According to the modeling a low-frequency amplitude anomaly, having a noticeable time delay relative the reflection from the layer top, can serve as an indicator that the layer is highly permeable and gas-saturated.
University of Houston 312 Science & Research, bld. 1, Houston, TX 77204, USA; e-mail:
V.B. Leviant², V.A. Miryakha¹, M.V. Muratov¹, I.B. Petrov¹
Seismic responses of vertical fractures depending on their thickness
Seismic responses of nearly vertical fluid-filled fractures to plane P-wave incidence depend on their thickness and area of zero thickness relative to the total fracture surface. Simulation shows that the model of an infinitely thin fracture is applicable to fractures with aspect ratios from 1 : 100 000 up to 1 : 1000, which are common in oil and gas reservoirs. P-to-S diffractions off even slightly dipping fractures do not show phase reversal. The amplitude of P-to-S diffractions attenuates for a value proportional to the relative area of sticking off a fracture (if it is less than 30 %). Thus information about fractures can be obtained from their seismic responses.
¹Moscow Institute of Physics and Technology (State University) 141700, Moscow Region, Dolgoprudnyi, Institutsky lane, 9, Russia; e-mail:
²OJSC Central Geophysical Survey 123298, Moscow, Narodnogo Opolcheniya str., 38, bld. 3, Russia; e-mail:
G.M. Goloshubin¹, I.O. Bayuk², O.A. Bayuk³
Haar wavelet based layered models of heterogeneous porous media
The paper addresses a problem of building layered models of a heterogeneous porous permeable fluid-saturated medium, prediction of the layers’ elastic properties and of the attenuation and dispersion of elastic waves propagating in such a medium. The solution to the problem is based on the wavelet decomposition theory, the effective medium theory, and the theory describing seismic wave propagation in porous media. The layered models have been built through log decomposition into the Haar wavelet basis. The elastic properties of each layer have been calculated using the Backus method. The prediction of seismic wave attenuation and dispersion have been based on the asymptotic solutions of the Biot theory.
¹University of Houston 312 Science & Research, bld. 1, Houston, TX 77204, USA; e-mail:
²The Shmidt Institute of Physics of the Earth, RAS 123995, Moscow, B. Gruzinskaya, 10, bld. 1, Russia; e-mail:
³Financial University under the Government of the Russian Federation, 125993, Moscow, Leningradskii prosp., 49, Russia; e-mail:
R.G. Anisimov¹, S.L. Langman², D.B. Finikov²
Traveltime inversion: possibilities for extending the class of layer models. Part 2. Reconstruction of an anisotropic layer
The paper continues a series of papers on possibilities for parameterization of a seismic layered model. The possibility for estimating locally homogeneous anisotropy parameters by inversion of refl ection arrivals is discussed with a focus on problem formulation and choice of the starting model. The starting model should provide constraints on the reflector depth and the orientation of the anisotropy axis in transversely isotropic models. A special algorithm is suggested and tested in practical applications to obtain the parameters of an anisotropic layer without a priori constraints on anisotropy orientation.
¹Gubkin Russian State University of Oil and Gas 119991, Moscow, Leninsky prospect str., 165, Russia; e-mail:
²Seismotech, Ltd. (Yandex.Terra) 115114, Moscow, Derbenevskaya naberejnaya str., 11, BC Pollars, off . A-612, Russia e-mail:
S.V. Yaskevich¹,², G.N. Loginov ¹,², A.A. Duchkov¹,², I.N. Kerusov³, V.M. Vingalov³
Reprocessing and quality control for microseismic data processing applications
Downhole microseismic monitoring is now widely used in Russia. This technique is applied to assess hydraulic fractures orientation. In this paper, we present the reprocessing results of microseismic monitoring data obtained in Western Siberia during hydraulic fracturing. Standard processing procedures are applied, microseismic locations are recovered and interpretation is made. Issues with data quality and processing materials are outlined.
¹Trofi muk Institute of Petroleum Geology and Geophysics, SB RAS 630090, Novosibirsk, prosp. Acad. Koptyuga, 3, Russia
²Novosibirsk State University 630090, Novosibirsk, Pirogova str., 2, Russia
³OOO “LUKOIL-Engineering” 127055, Moskow, Sushevskii Val str. 2, Russia; e-mail:
P.S. Kulyapin, T.F. Sokolova
Rock physics modeling workflow for complex carbonate reservoirs of Eastern Siberia
The paper presents the analysis, upscaling and downscaling related to the dual-porosity system from core to log and seismic scales of Osinsky, Ust-Kut and Preobrazhensky subsalt carbonate oil and gas reservoirs within Nepsko-Botuobinsky anticline of Lena-Tunguska petroleum province of Eastern Siberia. One of the key challenges addressed by the authors is rock property analysis of the reservoirs typically including complex lithology with multi-minerals and secondary porosity associated with oolitic and moldic facies, aimed for reservoir characterization through seismic inversion. Rock physics modelling workflow was developed based on the petrophysical analysis results for in-depth characterization of elastic properties providing a basis for reservoir prediction through different types of seismic inversion.
RN-Exploration 121357, Moscow, Vereyskaya Street, 17, Business Center Vereyskaya Plaza, Russia e-mail:
M.U. Tokarev, A.S. Pirogova
Estimation of elastic properties of gas-bearing near-surface sediments by ultra-high-resolution deep-towed seismoacoustic profiling. Kandalakha Gulf, White Sea case study
The paper presents a deterministic approach to estimation of elastic properties of near-surface gas-bearing sediments of Kandalakha Gulf in the White Sea. That is a layer-stripping AVO/A (Amplitude-Versus-Off set/Angle)-inversion of 2D ultra-high-resolution seismoacoustic data. Proper application of the approach requires a dataset with minor amplitude distortions. The paper provides recommendations on how to reach the required quality through introduction of a specific survey design, which is a deep-towed seismoacoustic system equipped with an omnidirectional source and hydrophones in the receiver array. Recommendations for quality control and data preconditioning workflow are also presented. The results of the sensitivity study and inversion are discussed for the soft muddy sediments and underlying gas-bearing sediments.
Lomonosov Moscow State University 119991, Moscow, GSP-1, Leninskye Gory, 1, Russia; e-mail:
G.D. Gorelik, А.P. Sysoev
Two-layer modeling for correction of near-surface heterogeneity in seismic reflection method
In processing of surface observations in the seismic reflection method, a near surface is described as a layer bounded by a daylight surface and a datum. If the near surface is compensated by static corrections, one assumes that the velocity in the layer is equal to zero and its influence on reflected waves kinematics is described by layer time thickness only. Such simplification of the model results in stacking velocity distortion with subsequent effect on inverse kinematic problem solution. In this paper, we consider a particular solution of the near-surface compensation problem for true near-surface velocity. The solution effectiveness has been confirmed by mathematical modeling results.
National Mineral Resources University (University of Mines) 199106, Saint-Petersburg, 21 Line, 2, Russia; e-mail:
V.A. Zhemchugova, M.O. Berbenev, Yu.V. Naumchev
New seismic technologies for better field exploration (Case study of upper cretaceous reservoirs in West Siberia)
The use of adaptive seismic technology (AviSeis) data allows improving the resolution of seismic data and constraining more rigorously the structure of Cenomanian and Turonian gas reservoirs in the northern West Siberian basin. Reservoir modeling with reference to data of sedimentology and rock physics provides reliable characterisation of different facies in terms of reservoir properties, including porosity and permeability.
Geophysical Data Systems Ltd. 117198, Moscow, Leninskiy prosp., 113/1, Park Place, off . Е-322, Russia, e-mail: