Digital surface reconstruction and oil-gas trap prediction

Li Chen; Osei Adjei; Yayun Lu

doi:10.1117/12.404818

23 October 2000 Digital surface reconstruction and oil-gas trap prediction

Li Chen, Osei Adjei, Yayun Lu

Proceedings Volume 4117, Vision Geometry IX; (2000) https://doi.org/10.1117/12.404818
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Automatic oil-gas trap prediction is usually based on 2D vertical section data or horizontal slice data. 3D seismic prospecting provides the possibility of using interfaces or digital surfaces to locate parameters that may be used to accomplish oil-gas trap prediction. However, to construct such digital surfaces usually requires computerized interaction between the software system and the interpreter. This paper describes an automatic digital surface reconstruction technique that is based on (lambda) -connected segmentation method, which generates a sequence of digital surfaces to represent the interfaces of seismic layers. The technique uses a surface fitting algorithm that is based on the gradually varied function. This algorithm can also be applied to irregular domains. Reconstructed surfaces are used as the reference surfaces to describe the actual locations of data (parameters) on the interfaces. A modified fuzzy evaluation technique is developed for the oil-gas trap prediction. After the evaluation of every point on all surfaces, a volume that indicates the possibility of oil-gas is built. This makes it possible to use (lambda) -connected searching to extract oil- gas components (traps) in the 3D image. Hence, it allows us to evaluate the size or volume of each trap. This paper also discusses the technique as used in a real oil-gas prediction problem to demonstrate the effectiveness of the concept in 3D seismic image processing.

Citation Download Citation

Li Chen, Osei Adjei, and Yayun Lu "Digital surface reconstruction and oil-gas trap prediction", Proc. SPIE 4117, Vision Geometry IX, (23 October 2000); https://doi.org/10.1117/12.404818

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KEYWORDS

Image segmentation

Interfaces

3D image processing

Reconstruction algorithms

Americium

Human-machine interfaces

Bayesian inference

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