Abstract
The main purpose of the work is to get the petroleum industry acquainted with a number of unique tools for seismic data interpretation, namely, sedimentation and paleotectonic analysis modules, as well as with technology of 3D interpretation of 2D survey data - "pseudo 3D.
The sedimentation analysis technology is based on rather simple and intuitive algorithm: a set of quasigeoisochronic surfaces in entire volume of seismic cube is calculated with the use of frame of key reflections between adjacent horizons. It makes possible, while moving in the cube continuously in time/depth (in "animated seismics" mode), to perform analysis by a number of parameters (optionally, by cube amplitude, by acoustic impedance, by dip, by coherence, etc.) both along key reflectors, and in intervals between them.
The sedimentation analysis module was used as the basis for creation of work algorithm of the paleotectonic analysis program and "pseudo 3D" technology, what makes these tools unique compared to various analogs.
The multi-year application experience proves that such technological developments promote qualitative and effective solution for interpretation of seismic data of various complexity.
In particular, the sedimentation analysis allows for significant extension of features of seismic methods in study of detailed structure of reservoir intervals holding hydrocarbon deposits, as well as for the most complete extraction of wavefield history changes from the seismic cube related to paleochannels, sedimentation bodies, various anomalies of geological cross-section, as well as faults.
The paleotectonic analysis module makes it possible to assess the geological history of study area.
The technology of creation of a "pseudo 3D" cube by 2D survey data is extensively applied to get an idea of spatial location of local sedimentation bodies, clinoform complexes and prospective objects.
