Numerical simulation of geophysical heat transfer in permafrost areas
Date
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Due to the impending resource development in the colder regions of the earth, a realistic appraisal of the effects of heat additions to permafrost layers is a practical necessity. An effective digital technique is developed for simulation of heat transfer in earth formations which are initially frozen. Three specific examples are investigated: (1) production of oil through a well which penetrates a permafrost layer, (2) injection of a relatively hot liquid down a well and into a reservoir which lies below a permafrost layer, and (3) placement of a volumetric heat source in a permafrost layer to simulate the disposal of radioactive wastes. Temperature fields and melting-front locations are computed, and parametric studies include the effects of varying the thermal properties of permafrost and the physical geometry of the heat transfer model.