| 超压背景下黏土矿物转化的优化模型 |
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| 引用本文： | 孟元林,魏巍,王维安,解习农,肖丽华,高煜婷,李清华,刘文慧.超压背景下黏土矿物转化的优化模型[J].吉林大学学报(地球科学版),2012(Z1):145-153. |
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| 作者姓名： | 孟元林 魏巍 王维安 解习农 肖丽华 高煜婷 李清华 刘文慧 |
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| 作者单位： | 东北石油大学地球科学学院;中国地质大学资源学院;庆新油田开发有限责任公司;大庆油田有限责任公司勘探开发研究院 |
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| 基金项目： | 国家自然科学基金项目(40872076) |
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| 摘 要： | 在黏土矿物转化的化学动力学模型中,大多数模型只考虑了温度、时间和流体介质的影响。然而,最近的一些研究表明,超压抑制黏土矿物的转化。考虑到超压对黏土矿物转化的抑制作用,建立了超压背景下黏土矿物转化的化学动力学模型,并用最优化方法确定了超压抑制因子,从而使伊/蒙混层中蒙皂石层质量分数模拟值与实测值的误差达到最小。为检验其合理性,将该模型分别应用于一个新生代盆地和一个中生代盆地。模拟结果表明:在超压地层中伊/蒙混层中蒙皂石层质量分数的模拟值与实测值吻合较好,在压力系数为1.2～1.7的地层中,超压对伊/蒙混层中蒙皂石层质量分数的抑制可达15%～20%。
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| 关 键 词： | 超压 黏土矿物 成岩作用 盆地模拟 成岩作用数值模拟 动力学 |
An Optimization Model of Clay Mineral Transformation Under Overpressure Setting |
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| Meng Yuan-lin,Wei Wei,Wang Wei-an,Xie Xi-nong,Xiao Li-hua,Gao Yu-ting,Li Qing-hua,Liu Wen-hui.An Optimization Model of Clay Mineral Transformation Under Overpressure Setting[J].Journal of Jilin Unviersity:Earth Science Edition,2012(Z1):145-153. |
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| Authors: | Meng Yuan-lin Wei Wei Wang Wei-an Xie Xi-nong Xiao Li-hua Gao Yu-ting Li Qing-hua Liu Wen-hui |
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| Institution: | 1.College of Earth Sciences,Northeast Petroleum University,Daqing 163318,Heilongjiang,China 2.Faculty of Earth Resources,China University of Geosciences,Wuhan 430074,China 3.Qingxin Oil Development Limited Liability Company,Anda 151413,Heilongjiang,China 4.Exploration and Development Research Institute of Daqing Oilfield Ltd Co.,Daqing 163712,Heilongjiang,China |
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| Abstract: | Temperature,time and fluid-composition are currently the most frequently used controls in mode-ling the transformation of clay minerals.However,the latest studies suggest that overpressure can retard the clay mineral transformation.Taking overpressure’s retardation on clay mineral transformation into consideration,a new optimum model has been developed,in which the overpressure inhibitory factor is calculated with the method of optimization,and the modeled error of S in I/S mixing layer is minimized.The model has been tested in a Mesozoic basin and a Cenozoic basin,and the results show that the computed S in I/S is coincident with the measured data nicely,and S in I/S is retarded by 15%~20% in the overpressure formation with the pressure coefficient of 1.2-1.7. |
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| Keywords: | overpressure clay minerals diagenesis basin modeling diagenetic numerical modeling kinetics |
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