The CohTEEC Technology
CohTEEC approach consists of a number of methods and algorithms suitable for mapping lithology changes, gas (oil) - water contacts and fracture delineation.
Multi-trace filters are means to detect and map faults and fracture zones. Also lithology changes and gas (oil) - water contacts lead to a different seismic
wave picture characterisable with CohTEEC attributes. Pattern recognition and feature extraction are further methods to generate seismic attributes and to cope with the amount of data contained in 3D
seismic surveys. Such filters and algorithms are widely known from material science and medical image processing.
A variety of different
algorithms leading to 2D and 3D Volume Attributes are possible that can be used to characterise the seismic signal. Advantages of using CohTEEC attributes are :
- Through a variety of available algorithms and operators a bundle of solution-dependent methods can be implemented
- Only a short time window is necessary for most of the attributes
- The local orientation of geological features can be taken into account.
The underlying software is developed inhouse and subject to a continuous development. The proprietary code and the algorithms do not touch
The following examples for CohTEEC attributes are availible.
To simultaniously view dip, azimuth and attribute value the IHS-Display technique is a valuable aid.