用TTI和动力学模型计算R_0值的对比──以中国南海北部为例  

COMPARISON OF THE R_0 VALUE CALCULATED ON TTI MODEL AND THAT ON KINETIC MODEL──EXEMPLIFIED BY STUDY OF NORTHERN PART OF SOUTH CHINA SEA

作　　者：邓孝[1] 张菊明[1] 陈墨香[1] 汪缉安[1] 黄忠明[1] 李雨梁[1] 

机构地区：[1]中国科学院地质研究所,中国海洋石油总公司南海西部公司石油勘探开发科学研究院

出　　处：《地球化学》1995年第3期245-253,共9页Geochimica

基　　金：国家自然科学基金

摘　　要：本文以南海北部大陆架西区为背景，对比研究用ＴＴＩ模型和化学动力学模型计算Ｒ_０的结果，探讨其对石油成熟度评价的意义。研究表明，由动力学模型方法确定的石油窗成熟起始位置（深度和温度）浅于ＴＴＩ的结果，其差距随着加热速率增加而加大，对南海北部大陆架西区而言，影响程度增加的顺序是北部湾盆地一珠三坳陷一莺琼盆地。The R0 values (vitrinite reflectance) obtained on the TTI model and on the chemical kinetic model are compared, and their implications in the evolution of oilmatuation for the northern shelf of South China Sea are discussed. The R0 value obtained based on the TTI model is not consistent with that on the chemical kinetic model. The depth of oil threshold resulting from the kinetic model is shallower than that from the TTI model. The difference between them increases with increasing heating rate, and the increasing order of the difference for the western area of northern shelf of South China Sea is as follows: Beibuwan Basin─Jusan Depression─Yingqiong Basin.

关 键 词：TTI模型 动力学模型 R0值 石油 成熟度 

分 类 号：P618.130.5[天文地球—矿床学]