Archive | 2021
Improving The Reliability of Basin Modeling Results by Enhancement of Determination of Geothermal Characteristics and Their Integration into Basin Model
Abstract
Summary Recently developed techniques for obtaining a geothermal dataset (rock thermal conductivity, volumetric heat capacity, thermal anisotropy, and heat flow) were applied for a well drilled in the Baleykinskoe oilfield (Orenburg region) that significantly improved the reliability of the geothermal data required for basin modeling. However, there are pitfalls in setting the reliable thermal conductivity and heat flow in a numerical basin representation that can reduce the quality of the final basin model. We proposed an advanced workflow for setting these characteristics into basin models and demonstrated its effectiveness on the example of a one-dimensional model specially built using the data determined for the well. It was established that using the traditional method of obtaining and setting geothermal characteristics in the model overestimates the transformation ratio of organic matter and therefore the mass of the generated hydrocarbon volume (by 30%). The application of the developed methodology of determination geothermal characteristics and its integration into a model is necessary in work involving basin and petroleum system modeling to avoid serious errors, which are practically inevitable in the opposite cases.