Geothermal and Petrophysical Investigations within the Chicxulub Scientific Drilling Project (CSDP)

该项目中要测量的数据将包括Chixulub CSDP钻孔的地热钻孔测量，以及该钻孔岩心样品的热性质和补充岩石物理性质的实验室测量。这些数据的解释将特别考虑冲击对岩石岩石物理性质的影响，重点是孔隙度和水力渗透率。除了由业务处执行的热测井外，还将执行岩石物理测井，这些测井将纳入解释。通过记录钻井作业结束后恢复到原状的温度，参照独立测量的岩石物理测井和实验室数据，可以获得关于现场导热系数和扩散率的信息。测量的温度分布中可能存在的水力效应将通过使用FD和FE方法的热工水力模型计算来模拟。该项目与J.Safanda(捷克科学院)提出的地热CSDP项目密切合作，并与GFZ波茨坦地热小组密切联系，将为CSDP的主要科学目标作出贡献。

The data to be measured in this project will comprise geothermal borehole measurements in the Chicxulub CSDP - drill hole and laboratory measurements of thermal properties as well as of supplementary petrophysical properties on core samples of this borehole. The data will be interpreted with special regard to the shock impact effects on the petrophysical properties of the rocks with emphasis on porosity and hydraulic permeability. Petrophysical logs, which will be performed in addition to the thermal logs by the Operational Service, will be incorporated into the interpretation. By recording the temperature recovery to undisturbed conditions after finish of drilling operations, information about the in situ thermal conductivity and diffusivity will be obtained by reference to the independently measured petrophysical logs and to the laboratory data. Possible hydraulic effects in the measured temperature profiles will be simulated by thermo-hydraulic model calculations using FD- and FE-methods. In narrow cooperation with the geothermal CSDP-project proposed by J. Safanda (Czech Academy of Sciences) and in a close contact to the geothermal group of the GFZ Potsdam the project will contribute to the major scientific goals of CSDP.