现代地质2012，Vol.26Issue(4)：723-731,9.
柴达木盆地北缘东段石炭系生烃潜力及其地质意义
Hydrocarbon Generating Potential of Carboniferous Source Rocks in East Part of North Margin of Qaidam Basin and Their Geological Significance
摘要
Abstract
According to the basic geochemical data of organic abundance, organic type, organic maturity and biomarker, the organic geochemical characters of the Carboniferous source rocks in east part of north margin of Qaidam Basin are analyzed. Results are as follows: ( 1 ) The dark-colored mudstone has an average organic carbon content of 1. 26% and the organic matter is mainly of HI and II types; (2)The carbonate rocks has a low organic carbon content with an average of 0. 24% , and the organic matter is of II and I types; (3) Hydrocarbon source rocks with a moderate-high organic matter maturity, have larger hydrocarbon-generating potential. The dark-colored mudstone and carbonate rocks both reach the standards of good to moderate hydrocarbon source rock. The sedimentary organic matters are dominantly derived from lower hydrobiont and algae, and deposit in a strong reducing environment of saline water. The comparison study of discovered crude oils of north margin of Qaidam Basin indicates that the crude oils in Lenghu area and Nanbaxian oilfield have little contribution from Carboniferous source rocks. In Mabei oilfield, some crude oil samples are from the Carboniferous source rocks, indicating new petroleum exploration area in north margin of Qaidam Basin.关键词
柴达木盆地北缘东段/石炭系/烃源岩/油气地球化学/油源对比Key words
east part of north margin of Qaidam Basin/ Carboniferous/ source rock/ petroleum geochemistry/ oil-source correlation分类
能源科技引用本文复制引用
张明峰,妥进才,张小军,邱军利,吴陈君,郭力军,嵇文涛..柴达木盆地北缘东段石炭系生烃潜力及其地质意义[J].现代地质,2012,26(4):723-731,9.基金项目
中国科学院重要方向项目(KZCX2-EW-104) （KZCX2-EW-104）
国家自然科学基金项目(41103022) （41103022）
中国科学院西部之光人才培养西部博士项目(Y134MF1ZMF). （Y134MF1ZMF）
