| 运用TTI法恢复地层原始沉积厚度——以华北晋西、中原地区为例 |
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| 引用本文： | 仇福康. 运用TTI法恢复地层原始沉积厚度——以华北晋西、中原地区为例[J]. 石油实验地质, 1993, 15(1): 29-36. doi: 10.11781/sysydz199301029 |
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| 作者姓名： | 仇福康 |
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| 作者单位： | 同济大学 上海 200092 |
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| 摘 要： | 岩石中有机质的成熟度是它在埋藏史中热演化效应的累积,这种累积效应可用时间-温度指数(TTI值)或镜煤反射率(R°)表示。在取得某地区研究层的TTI(或R°)值及埋藏史后,就可反演出其最大埋深,恢复地层原始沉积厚度。此法的精度取决于地温、厚度及TTI或R°等参数,当研究区地质历史上发生多次降升和沉降时,必须进行深度校正和时间-温度的热校正。
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| 关 键 词： | 有机质的成熟度 埋藏史 深度和热效校正 |
| 收稿时间： | 1990-06-14 |
AN APPLICATION OF TTI IN RECONSTRUCTION OF ORIGINAL THICKNESS OF SEDIMENTARY SEQUENCES-A CASE STUDY OF THE WEST SHANXI AND NORTH HENAN AREAS |
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| Chou Fukang. AN APPLICATION OF TTI IN RECONSTRUCTION OF ORIGINAL THICKNESS OF SEDIMENTARY SEQUENCES-A CASE STUDY OF THE WEST SHANXI AND NORTH HENAN AREAS[J]. PETROLEUM GEOLOGY & EXPERIMENT, 1993, 15(1): 29-36. doi: 10.11781/sysydz199301029 |
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| Authors: | Chou Fukang |
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| Affiliation: | Tongji University, Shanghai |
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| Abstract: | The maturity of organic matter in sedimentary rocks is the accumulating effects of thermal evolution in burial history. Such an accumulated effect could be expressed by time-temperature-index (TTI) or vitrinite reflectance (R°), The greatest burial depth and the original thickness of sedimentary sequences can be obtained by the method of reversion, once the TTI (or R°) and the burial history in certain areas are available. The precision of this method depends on the parameters, such as geothermics and thickness of sedimentary sequences, TTI,R°,etc.. If upliftings and sudsidings take place,you should make corrections both on the depth and the thermal effects of time-temperature. |
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