潍北凹陷原油成因类型分布及油源对比  

Oil genetic classification and oil-source correlation in Weibei Depression

作　　者：史翠娥[1] 杨慧臣[1] 尚刚[1] 王传忠[1] 席伟军[2] 

机构地区：[1]中国石化胜利油田分公司东胜公司,山东东营257001 [2]中国石化胜利油田分公司新春采油厂,山东东营257001

出　　处：《断块油气田》2013年第6期709-712,共4页Fault-Block Oil & Gas Field

基　　金：国家油气重大专项"渤海湾盆地精细勘探关键技术"(2011ZX05006)

摘　　要：应用油藏地球化学方法对潍北凹陷孔店组原油进行成因类型划分和油源对比研究,通过生物标志化合物特征分析,可将潍北凹陷原油分为4类,Ⅰ类为成熟腐殖型原油,Ⅱ类为低熟腐殖型原油,Ⅲ类为成熟腐泥型原油,Ⅳ类为低成熟腐泥型原油;Ⅰ类和Ⅲ类原油在工区分布广泛,Ⅱ类和Ⅳ类原油主要分布在东南部。通过油源对比研究,认为Ⅰ类、Ⅱ类原油主要来源于临近区域的孔二段上亚段湖沼相的泥岩或碳质泥岩,Ⅲ类、Ⅳ类原油主要来源于临近区域的孔二段中亚段的湖相泥岩。Using the reservoir geochemistry method, this paper mainly studies the genetic classification anti oil-sounce correlation in Weibei Depression. Through analyzing the compound features of biomarker, the crude oils in Weibei Depression can be divided into four types： Type Ⅰ is malure humie oil, Type Ⅲ is low-mature humie oil, Type m is mature sapmpel oil and Type Ⅳ is lowmature saprupel oil. Type Ⅰ and Ⅲ crude oil are widely distributed in the study area. The crude oils of Type Ⅱand Ⅳ are mainly distribuled in the southeast. From oil-source correlation analysis, it ia considered that the crude oils of Type Ⅰ and Ⅱcome mainly from Ihe anna adjacenl to the muds!one of lakes-swamps or carbonaceous mudstone Ek？ and Type Ⅲand Ⅳcrude oils mainly come from the lacustrine mudslones of Ek^2z.

关 键 词：原油成因 油源对比 孔店组 潍北凹陷 

分 类 号：TE122.113[石油与天然气工程—油气勘探]