Products

The iNSTA-Geo© software package is an in-house development and serves as an effective tool for constructing a top section model of the environment. The software package is based on the approach of interactive correction of static corrections based on the analysis of sections obtained on the spatially fixed summation bases (SFP© - Surface Fixed Patterns). This technique can be used for all types of data. In comparison with traditional approaches, such as building the upper section model with first-breaks tomography, the interactive correction of static corrections does not depend on the quality of first-breaks data. In addition, the iNSTA-Geo software package has a wide range of procedures for processing seismic data, including first-breaks modeling of the upper section, velocity analysis, refining the long-period trend from horizontal spectra, working with maps and data, and functionality for simultaneous work with 2D and 3D data.

The iNSTA-GEO software package provides full functionality for creating and running seismic processing jobs. Saving and editing jobs makes it possible not only to save different versions of processing tests, but also to run a whole array of jobs using a queuing system. More than 40 modules provide the flexibility to work with the program. The development team is also working on new modules in iNSTA-GEO to achieve quality results within a single software product.

The iNSTA-Geo software package implements an interactive approach to static corrections. The concept consists in the formation of static corrections as a time-shift model adequately reflecting the heterogeneities of upper part of the section, including the following steps:

• separation of heterogeneities zones along the profile (area)
• determination of the wave travel time increments on the heterogeneities boundaries and the preliminary estimation of the static anomaly
• an additional automatic correction of the different components of the static corrections

An important component of the methodology is how to extract the information about heterogeneities from the processed seismic data. To identify zones of heterogeneities and to estimate the level of time delays within them, we use

• various trace summation schemes (obtaining full and partial - in different ranges of distances, including with fixed position of summation bases - CDP, CSP,CRP summations)
• separate gathers (with kinematic corrections), on which the in-phase axes are detected sufficiently confidently
• travel time curves of the first breaks or acquisition of traces of equal offsets for the initial part of the record
• horizontal velocity spectra V^CDP both on the full spread and on its half
• summation results (CDP, CSP,CRP) with introduction of different variants of time delays as static corrections.

The use of first breaks information is the basis for building a model of the upper part of the section. The iNSTA-GEO software package implements the ability to trace first breaks and build a layered model to calculate static corrections. The program implements a convenient functionality that allows setting the initial model of the medium in a few minutes using semi-automatic tools. The resulting velocity models can be smoothed and transformed from depth to time domain. Using a combination of the upper section part  model building tools and interactive static corrections in iNSTA-GEO software, it is possible to take into account the influence of a variety of near-surface heterogeneities.

As part of developing and improving the quality of its services, the specialists of the technology department, working closely with the company's project geophysicists and geologists, are developing additional modules for AspenTech ECHOS software. The modules incorporate our years of experience and best practices in seismic data processing, as well as sophisticated modern algorithms and job flows, which are the intellectual property of the company. The use of these modules will improve the quality of seismic data processing.

All modules are developed in a unified way and do not differ in any way from the presentation of the native modules of the ECHOS system.