| 高效气源灶及其对形成高效气藏的作用 |
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| 引用本文： | 赵文智,王兆云,汪泽成,王红军,张水昌,王云鹏,赵长毅,苗继军.高效气源灶及其对形成高效气藏的作用[J].沉积学报,2005,23(4):709-718. |
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| 作者姓名： | 赵文智 王兆云 汪泽成 王红军 张水昌 王云鹏 赵长毅 苗继军 |
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| 作者单位： | 中国石油天然气股份公司石油勘探开发研究院,北京,100083;中国科学院广州地球化学所,广州,510640 |
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| 摘 要： | 厘定了高效气源灶的概念和评价指标。高效气源灶是指具有一定分布范围的高有机质丰度气源岩在特定的热力或生物化学营力作用下高效生气,且这一过程与天然气聚集成藏作用在时、空间有良好耦合关系,从而在大中型气藏形成中高效发挥作用的气源灶。包含两方面涵义,生气的物质基础和生气的热动力学过程。因此,评价指标从三方面考虑,一是气源灶生气强度大,这里沿用戴金星提出的形成大中型气田的评价指标,大于20×108m32
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| 关 键 词： | 高效气源灶 高效成藏作用 主生气期作用时间 评价指标 油裂解型气源灶 |
| 文章编号： | 1000-0550（2005）04-0709-10 |
| 收稿时间： | 2005-06-27 |
| 修稿时间： | 2005-09-07 |
Concept, Connotation and Evaluation Index of High Effective Gas Source Kitchen and Its Action to the Formation of High Effective Gas Pool |
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| ZHAO Wen-zhi,WANG Zhao-yun,WANG Ze-cheng,WANG Hong-jun,ZHANG Shui-chang,WANG Yun-peng,ZHAO Chang-yi,MIAO Ji-jun.Concept, Connotation and Evaluation Index of High Effective Gas Source Kitchen and Its Action to the Formation of High Effective Gas Pool[J].Acta Sedimentologica Sinica,2005,23(4):709-718. |
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| Authors: | ZHAO Wen-zhi WANG Zhao-yun WANG Ze-cheng WANG Hong-jun ZHANG Shui-chang WANG Yun-peng ZHAO Chang-yi MIAO Ji-jun |
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| Institution: | 1.Research Institute of Petroleum Exploration & Development,PetroChina, Beijing 100083;2.Guangzhou Geochemical Institute, CAS, Guangzhou 510640 |
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| Abstract: | Concept, connotation and evaluation index of high effective gas source kitchen are discussed in the papere. High effective gas source kitchen refers to those that not only has high abundance of organic matter and good quality type of source rockswhich can generate large amount of gas under the geothermal and biology action, but also has a good coincidence with the large scale gas accumulation and pool forming in time and space, therefore, it plays an important role in the formation of large and medium gas pool. High effective gas source kitchen includes two profiles connotation, that are material basis and thermal kinetics process of gas generation. So, the evaluation index are discussed from three features as follows: the first is high intensity of gas generation ( generally larger than 20 ×108m3 /km2 ) , derived from large and medium gas field advocated by Jinxing-Dai; the second is short action time ofmain gas generation period, which is confirmed through gas generation kinetics studies of source rocks of typeⅠ, Ⅱ and Ⅲ and crude oil, and the statistic analysis ofmain gas generation time ofmain gas source rocks in China, the major gas generation period of high effective gas source kitchen is usually less than 40Ma, especially better less than 20Ma. The third is that ending time of major gas generation period is very close to present, which is important to the formation of gas accumulations in the late stage. The contributions of high effective gas source kitchen to the formation of high effective gas pool lies in high rate of gas supply resulting in high effective accumulation and migration of gas, besides little loss of natural gas etc. According to the type of source rocks and kinetics process of gas generation, three groups,including six sub-groups, of high effective gas source kitchens are classified in China. |
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| Keywords: | high effective gas source kitchen high effective gaspool major gas generation period evaluation index oil cracked gas source kitchen |
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