Issues of the journals for 2007 y.

The Development of Thin-Layered Geological Model of Jurassic and Pre-Jurassic Hydrocarbon Prospects Using High-Resolution Seismic

(Milashin V.A. Trofimov V.L. Khaziyev F.F. Kachkin A.A. Timonin A.B. Maltsev G.A. )

The HRS-Geo high-resolution seismic technology and the GeoGraphix Discovery™ R2004.J, v.8.5 interpretation system allowed us to run an integrated analysis of well logging and high-resolution seismic data. The data were supposed for use in building a thin-layered geological model for oil-bearing prospects as well as for predicting using 2D seismic indicators (shaliness, porosities, oil-saturation, oil-saturated intervals, etc.) that are most significant in prospecting and exploration of commercial hydrocarbon accumulations. It was also possible to outline transition zone across the area under study where the Mulymin type section changes to the Tutleim type section; the two section types spanning the Lower Cretaceous and Upper Jurassic. This transition zone separates substantially different oil generation and accumulation environments, which is of high practical significance for prospecting and exploration of commercial hydrocarbons. Integrated utilization of various indicators permitted further prospecting localities (sites) to be identified where hydrocarbon-prospective features can be assessed.......

  • 2007  № 4, pp. 108-119

Geoseismic Section Model of the Central West Siberia

(Gogonenkov G.N. Parnikel V.Ye. Samoilov A.V. Fedossova A.I. )

The article highlights building process of geologic model and its equivalent petrophysical model for central areas of West Siberia intended to subsequently help solve inverse seismic problems. The article describes in detail how a 2D model was built for acoustic inhomogeneities caused by hydrocarbon deposits and how model seismograms were computed using wave equation in the Tesseral 2D software system.......

  • 2007  № 4, pp. 120-129

The Influence of Basic Data Processing Procedures of Hydrocarbon Anomalies Detection

(Gogonenkov G.N. Fedossova A.I. )

The article highlights the impact that different seismic data processing procedures can make on the level of accuracy in identifying anomalies caused by hydrocarbon deposits. Behavior of reflection amplitudes from productive formation boundary and amplitude-derived parameters were analyzed to assess the processed seismic data quality. The article describes in detail the selection of seismic parameters most sensitive to hydrocarbon deposits as well as selection of time window to analyze seismic parameters.......

  • 2007  № 4, pp. 130-136

Estimates of Acoustic Inversion Efficiency

(Gogonenkov G.N. Fedossova A.I. )

The article is devoted to the assessment of effectiveness of CGE-developed acoustic inversion technique that allows building 2D/3D models of reservoir properties based on stochastic analysis of seismic data. Recovered acoustic properties in a thin-layered model for the West Siberian hydrocarbon-bearing Yety-Pur field were used to run such assessment. The values of characteristics, such as thickness, occurrence depth, acoustic contrasts for oil and gas reservoir formations as well as for overlying (underlying) formations, were found that enabled a confident reservoir formation mapping from inversion results.......

  • 2007  № 4, pp. 137-148