--> ABSTRACT: 3D Basin Modelling with Finite Elements - Concepts and Realization, by T. Hantschel and H. Synofzik; #91021 (2010)

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3D Basin Modelling with Finite Elements - Concepts and Realization

HANTSCHEL, T., and H. SYNOFZIK

The new generation of commercial basin modelling systems realizes true 3D analysis systems. A 3D basin modelling program is presented for heat and pore pressure analysis of evolving geological structures. This program is based on the Finite Element Method, which allows the use of irregular meshes as the best fit of the complex geological structures. A special compaction algorithm was developed, which controls geometry changes by the use of Terzaghi's stress model and realizes real forward modelling through time. An optimization routine allows geometry optimization during multiple simulation runs. The transient heat flow and pore pressure analysis models are implemented and standard kinetic models control petroleum generation and the calculation of calibration data (vitrinite reflectance, biomarkers, Tmax values). The program also encompasses special geological models as cementation, fracturing and intrusions. Some academic examples are demonstrated to evaluate the effectivity of special mathematical tools and the applicability of the different analysis models. Practicability of 3D simulations and the influence of multidimensional effects are investigated in real studies.

AAPG Search and Discovery Article #91021©1997 AAPG Annual Convention, Dallas, Texas.