地热参数及边界条件的探讨
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摘要
为了提高地热史的模拟计算精度，改进了地层热导率的计算公式和岩石骨架热导率的计算方法，讨论了地热场方程边界温度和深度的取值问题，应用大地热流的再分配原理确定了虚拟井的古大地热流，从而实现了用１口井的钻井资料和地震资料对全盆地的模拟与评价。新完钻的汤参２井所揭示的资料证明了这些改进的合理性。
In order to get accurate thermal history modelling,the formula for calculating the thermal conductivities of formation and the method for computing the thermal conductivities of rock skeleton were revised; the determination of the boundary temperature and it’s depth were discussed; the paleoheat flux of fictitious wells were given by using the heat flux redistributing principle.Therefore the modelling and estimating of a basin can be carried out by using one well’s data and seismic data.The information from newly finished Tangcan-2 well showed the reasonablness of these improvements.
In order to get accurate thermal history modelling,the formula for calculating the thermal conductivities of formation and the method for computing the thermal conductivities of rock skeleton were revised; the determination of the boundary temperature and it’s depth were discussed; the paleoheat flux of fictitious wells were given by using the heat flux redistributing principle.Therefore the modelling and estimating of a basin can be carried out by using one well’s data and seismic data.The information from newly finished Tangcan-2 well showed the reasonablness of these improvements.
引文
1傅良魁。应用地球物理学。北京：地震出版社，1991．322～3232陈墨香。华北地热。北京：科学出版社，1988．11～12
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