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High Quality Temperature Data for Assessing Sedimentary Basins

  • Basin Temperature Modeling and heat flow is a fundamental service provided by TGS. This service includes temperature modeling in all basin evaluations to understand the maturation of source rocks within the basin and to help determine the likely presence and type of hydrocarbons within that basin. Subsurface basin temperature:

    • Is a fundamental parameter for many aspects of hydrocarbon exploration, both conventional and unconventional
    • Controls the rate of chemical reactions: kerogen transformation in source rocks
    • Is an important requirement for many borehole management procedures; it is measured during drilling


    TGS provides Basin Temperature Modeling studies for a number of basins onshore in the United States to support exploration for shale gas. The workflow to develop these studies consists of:

    • Gathering raw bottom hole temperature (BHT) data
    • Using a unique TGS MAXG approach and interpreted lithologic intervals to confirm
    • Producing a temperature cube from the layered formation temperature gradient model


    Basin Temperature Modeling studies produce two primary deliverables:

    • Temperature and depth grids generated for each layer in the model
    • Temperature cube is created so that temperature maps can be easily generated for evaluation of prospective formations


    The purpose of the Basin Temperature Modeling is to enable the client to:

    • Cross-correlate prospective zones with the temperature cube and identify optimum temperature of prospective areas
    • Use Temperature Log Data for identification of areas of anomalous fluid flow and heat flow
    • Calculate pseudo-maturity (assuming present temperature is maximum) and compare with measured to identify uplifted or volcanic areas

    For more information on the methodology, please see http://www.earthdoc.org/publication/publicationdetails/?publication=65624