Structural a priori information for reflection tomography
- Inst. Francais du Petrole, Pau (France)
The model calculated by traveltime inversion is underdetermined. One solution to this problem is to introduce a priori information so as to reduce the set of possible solutions to those satisfactory from a geological point of view. In this paper, the authors impose geological constraints on the relative position of the reflectors and in particular on the location in depth of faults. To implement this method in the context of a Gauss-Newton algorithm for the inversion, the Jacobian of the impact points with respect to the model is computed. They thus compute, using the adjoint state technique, the exact jacobian at a low computational cost. To illustrate the efficiency of the method, field data acquired on fault structures are inversed. They obtain a structural model which is satisfactory from both a kinematic and a geological point of view.
- OSTI ID:
- 80326
- Report Number(s):
- CONF-941015-; TRN: IM9532%%454
- Resource Relation:
- Conference: 64. annual meeting of the Society of Exploration Geophysicists and international exposition, Los Angeles, CA (United States), 23-27 Oct 1994; Other Information: PBD: 1994; Related Information: Is Part Of SEG international exposition and sixty-fourth annual meeting -- 1994 Technical program: Expanded abstracts with authors` biographies; PB: 1736 p.
- Country of Publication:
- United States
- Language:
- English
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