利用岩石热解参数S2-Coc图谱分析盆地有机质类型及生油潜力  

ORGANIC MATTER TYPE AND HYDROCARBON GENERATION POTENTIAL ANALYSIS IN THE BASIN BY S2-C0c GRAPHS OF ROCK PYROLYSIS PARAMETERS

作　　者：陈晓红[1,2] 迟焕远[3] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京102249 [2]中国石油大庆塔木察格有限责任公司,黑龙江大庆163453 [3]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2011年第2期41-45,共5页Petroleum Geology & Oilfield Development in Daqing

摘　　要：岩石热解是广泛应用于研究烃源岩有机质成熟度和生烃潜力的一种分析方法。利用热解参数绘制裂解烃（s2）-有机碳（C0c）图谱可有效地区分研究地层的有机质类型。将此方法应用于海拉尔一塔木察格盆地乌尔逊、贝尔、南贝尔和塔南凹陷的白垩系各生油岩层，得出了这4个主力凹陷干酪根类型：乌尔逊凹陷南屯组一段、南屯组二段为Ⅱ型干酪根，铜钵庙组为Ⅰ型干酪根，大磨拐河组为Ⅲ型干酪根；贝尔凹陷大磨拐河组、南屯组一段和南电组二段都为Ⅱ型干酪根，只有铜钵庙组为Ⅲ型干酪根；南贝尔凹陷铜钵庙组、南屯组一段和南屯组二段均为Ⅱ型干酪根；塔南凹陷铜钵庙组和南屯组一段为Ⅱ型干酪根。研究表明，海拉尔一塔木察格盆地干酪根主要类型为Ⅱ型，生油潜力较好。Rock pyrolysis is one of widely used analyzing methods for studying the organic matter maturity and hydrocarbon generation potential of source rock. The types of organic material can be effectively identified and evaluated by means of the graphs of S2-C0c by rock pyrolysis parameters. The kerogen types of four main sags have obtained by the above method applied in Wuerxun, Beier, South Beier and South Tamtsag Sags of Hailar-Tamtsag Basin： in Wuerxun Sag, No. 1 and No. 2 Intervals of Nantun Formation-Type II kerogen, Tongbomiao Formation-Type I kerogen, Damoguaihe Formation-Type Ⅲ kerogen; in Beier Sag, Damoguaihe Formation, No. 1 and No. 2 Intervals of Nantun Formation-Type Ⅱ kerogen, only Tongbomiao Formation-Type Ⅲ kerogen; in South Beier Sag, Tongbomiao Formation, No. 1 and No. 2 Intervals of Nantun Formation-Type Ⅱ kerogen; Tongbomiao Formation and No. 1 Interval of Nantun Formation-Type Ⅱ kerogen. The studies show that the principal type of kerogen in Hailar-Tamtsag Basin is Type Ⅱ, the potential of oil generation is much better.

关 键 词：岩石热解 海拉尔-塔木察格盆地 S2-Coc图谱 有机质类型 生油潜力 

分 类 号：TE122.1[石油与天然气工程—油气勘探]