燕山地区中元古界洪水庄组烃源岩开放体系生烃动力学  

Hydrocarbon Kinetics of Mesoproterozoic Hongshuizhuang Formation in Open System of Yanshan Area

作　　者：刘岩[1] 钟宁宁[1] 宋涛[2] 田永晶[3] 韩辉[4] 何欣[5] 

机构地区：[1]油气资源与探测国家重点实验室（中国石油大学（北京）,北京102249 [2]天津市国土资源和房屋管理局,天津300042 [3]中石化华东石油局勘探开发研究院,江办南京210036 [4]油气资源与探测国家重点实验室（中国石油大学（北京））,北京102249 [5]中国石油勘探开发研究院,北京100083

出　　处：《石油天然气学报》2011年第5期17-21,333,共5页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05018);中国石油化工股份有限公司海相前瞻性项目(YPH08028)

摘　　要：燕山地区洪水庄组发育高有机质丰度的黑色页岩。利用开放体系程序升温热模拟试验结果表明,洪水庄组烃源岩有机质热裂解反应主要发生在400~480℃之间,其表观生烃活化能集中分布在40~70kcal/mol之间,平均为54.47kcal/mol,其活化能分布与典型Ⅱ型有机质（法国巴黎盆地Toarcian页岩）活化能分布极为相似,可能具有相似的生烃机理,这也许与元古界生物种属简单、生物分异程度小有关;地质条件下,洪水庄组烃源岩有机质主生烃期温度范围在117~162℃（Ro为0.68%~1.19%）,表现出生烃时间较早、生烃集中的特点。Hongshuizhuang Formation developed high organic black shales.The results indicate the thermal cracking reaction of organic matter from Hongshuizhuang Formation is induced between 400～480℃.The distribution of apparent hydrocarbon generation activation energy is mainly ranged from 40 to 70 kcal/mol with the average of 54.47 kcal/mol,which is similar with the typical organic matter of type Ⅱorganic matter(such as Toarcian shales from Paris Basin,France).So they possibly has the semblable the mechanism of generation,which is related with the simple organisms and the low degree of organism differentiation.Under the geological conditions,the main hydrocarbon generation temperature of organic matter in Hongshuizhuang Formation is 117～162℃(i.e.Ro ranged from 0.68% to 1.19%),which indicates the character of early time and concentration of hydrocarbon generation.

关 键 词：燕山地区 洪水庄组 海相油页岩 生烃动力学 开放体系热模拟 

分 类 号：P618.13[天文地球—矿床学]