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| 超压地层中镜质组反射率的计算 | |
| 引用本文： | 肖丽华,孟元林,张连雪,韦阿娟,李军,张文才,殷秀兰,王志国. 超压地层中镜质组反射率的计算[J]. 石油勘探与开发, 2005, 32(1): 14-17 |
| 作者姓名： | 肖丽华 孟元林 张连雪 韦阿娟 李军 张文才 殷秀兰 王志国 |
| 作者单位： | 1. 大庆石油学院 2. 大庆石油学院;中国地质大学,北京 3. 中国石油大港油田勘探开发研究中心 4. 中国地质大学,北京;中国石油大港油田勘探开发研究中心 5. 中国地质环境监测院 |
| 基金项目： | 国家"十五"重大科技攻关项目(2001BA605A08)国家自然科学基金项目(4037102) |
| 摘 要： | 已有的研究表明,超压可以抑制镜质组的热演化、增加反应活化能。在EASY%R0模型的基础上,通过超压调节化学动力学反应活化能,建立了超压条件下镜质组热演化的化学动力学模型Pa％R0,并根据黄骅坳陷歧北洼陷受超压抑制和未受超压抑制的R0实测资料,确定了有关模拟参数。歧北洼陷港深48井明显超压(压力系数1．2～1．6),用Pa％R0模型所预测的有机质成熟度和生烃时间与用EASY%R0模型预测的明显不同,超压对R0的抑制可达0．1％～0．3％,可使烃源岩进入生油门限的时间推迟1～4．4Ma。图2参34 |
| 关 键 词： | 超压 镜质组反射率 成岩作用 烃源岩 盆地模拟 黄骅坳陷 歧北洼陷 |
| 文章编号： | 1000-0747(2005)01-0014-04 |
Vitrinite reflectance modeling in the over-pressured formations |
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| XIAO Li-hua,MENG Yuan-lin,ZHANG Lian-xue,WEI A-juan,LI Jun,ZHANG Wen-cai,YIN Xiu-lan,WANG Zhi-guo. Vitrinite reflectance modeling in the over-pressured formations[J]. Petroleum Exploration and Development, 2005, 32(1): 14-17 | |
| Authors: | XIAO Li-hua MENG Yuan-lin ZHANG Lian-xue WEI A-juan LI Jun ZHANG Wen-cai YIN Xiu-lan WANG Zhi-guo |
| Affiliation: | Daqing Petroleum Institute, Hebei 066004, China;Daqing Petroleum Institute, Hebei 066004, China;Oil and Gas E&D Technology Research Center, Dagang Oilfield Company, PetroChina, Tianjin 300280, China;Oil and Gas E&D Technology Research Center, Dagang Oilfield Company, PetroChina, Tianjin 300280, China;Oil and Gas E&D Technology Research Center, Dagang Oilfield Company, PetroChina, Tianjin 300280, China;China University of Geosciences, Beijing 100083, China;China Institute of Geo-enviorenmental Monitoring,Beijing 100081,China;Daqing Petroleum Institute, Hebei 066004, China |
| Abstract: | The studies indicated that overpressure could retard vitrinite reflectance and increase activity energy. Using the vitrinite reflectance from both the overpressure well and the normally pressured well, a new vitrinite reflectance kinetic model Pa% Ro incorporating overpressure retardation is developed, in which overpressure modifies activity energy. The model was tested in Qibei Sub-sag of Huanghua Depression. The results suggest that the maturity and timing of the onset of hydrocarbon generation is different significantly from those predicted by EASY%.Ro. The vitrinite reflectance values are retarded by 0. 1%-0. 3% in the overpressure formations with the pressure coefficient of 1. 2-1. 6, and the time of source rocks entry into oil generating threshold is delayed by 1-4. 4Ma. |
| Keywords: | overpressure vitrinite reflectance diagenesis source rock basin modeling Huanghua Depression Qibei Sub sag |
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