ON TOMOGRAPHY APPLYING IN THE THEKMAL CONDUCTIVITY VARIATION OF SEDIMENTARY FORMATIONS
-
摘要: 由于岩层的骨架热导率在整个沉积演化期内基本保持不变,所以可该看作常量。在流体性质不变的前提下,已经胶结成层的岩石的热导率仅随孔隙度和温度的变化而变化。通过对热史的计算机模拟和沉积史的模拟,可对不同时代的岩石热导享反演成像,从而获得不同时代与不同深度的热导率图像。本文讨论了利用磷灰石裂变径迹和镜质体反射率资料对热导率成像的方法,并给出一个利用镜质体反射率成像的理论模型。Abstract: As the thermal conductivity of sedimentary formations is stable throughout the periodof sedimentary evoltition,it can be regarded as a constant. With a premise of invariable offluid property,the thermal conductivity of cemented rocks changes only with the variationof porosity and temperature,By the comptiter modellings on thermal history and sedimentary history,the thermal conductivity of rocks in different times can be inversed and imaged obtaining the images of thermal conductivity in varing times and depths, In this paper, the authors discuss the imaging method of thermal conductivity according to the fission track of apatite and the data of vitrinite reflectivity and suggest a theoretical model ofimaging using vitrinite reflectivity.
-
[1] Andrews-Speed,Oxburgh ER and cooper BA.-Temperature and Depth-Dependent Heat Flow in Western North Sea,AAPG Bedlrtin 1984,68:1764-1781 [2] Dave Deming and David Shapmans. Thermal Histories and Hydrocarbon Generation:Example form Utah-Wyoming Thruat BeIt.AAPG Bulletin,1989,73,1455-1471 [3] Green PF. Duddy IR. Laslett GM.Hegarth KA.Gleadow AJW and Lowering JF. Thermal annealing of fission tracks in apatite 4. Quantitative modelling techniques and extension to geological timescales. Chemical Geology (Isotope Geoscience Section),1989.79,155-182 [4] Lutz TM and Gomaa Omar. An inverse method of modelling thermal histories from apatite fission-track data.Earth and Planetary Science Lttttrs. 1991,104:181-185 [5] Wood DA. Relationships Between Thermal maturity Indices Caculated Using Arrhenius Equation and Lopatin Method,Implications for Petrolum Exploration,AAPC Bnllrtin,1988.72.115-134 -
点击查看大图
计量
- 文章访问数: 935
- HTML全文浏览量: 125
- PDF下载量: 242
- 被引次数: 0
下载:
苏公网安备32021102000780号