川东南下古生界牛蹄塘组烃源岩地球化学特征  

Neat's foot pond Chuandongnan lower palaeozoic era group of hydrocarbon source rock geochemical characteristics

作　　者：赵伟[1,2] 李辉[1] 于起玲[3] 徐云龙[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]成都理工大学油气田开发地质国家重点实验室,四川成都610059 [3]中石油新疆油田公司实验检测研究院,新疆克拉玛依834000

出　　处：《石油化工应用》2014年第7期82-87,共6页Petrochemical Industry Application

摘　　要：通过大量的研究资料看出川东南下古生界牛蹄塘组的烃源岩显示出良好的潜力,结合相关资料以及野外剖面样品的分析主要来研究其地球化学特征.用直接评价法结合原始有机碳恢复评价法对样品进行分析,得出该烃源岩的有机碳（TOC）含量一般在0.46 ％～4.9％,平均2.2％.明显看出该套烃源岩有机质含量高.通过利用干酪根碳同位素（δ13C）法结合母质有机显微组分法得出其有机质类型为Ⅰ型腐泥型,利用沥青质反射率及干酪根热解法得出其成熟度R0一般范围为2.4 ％～5.0％,平均3.4％,明显属于过成熟阶段.Through extensive research data shows the south eastern Sichuan Niutitang paleozoic source rocks showed good potential, mainly to study the geochemical characteristics with related data analysis and outcrop samples. Combined with the original organic carbon recovcry evaluation samples were analyzed by direct evaluation method, the source rocks derived organic carbon （TOC）content is generally between 0.46 % to 4.9 %, averaging 2.2 %. The apparent source rocks of high organic content. By using a combination of kerogen carbon isotope （δ13C）Act organic precursors maceral method to get the type of organic matter type Ⅰ sapropelic use asphahene reflectance and kerogen pyrolysis come to its maturity generally ranges from Ro 2.4 % to 5.0 % with an average of 3.4 %, clearly belonged to the mature stage.

关 键 词：川东南地区 牛蹄塘 烃源岩 有机地球化学 

分 类 号：P618.13[天文地球—矿床学]