Niger Delta oil geochemistry: Insight from light hydrocarbons

被引：26

作者：

Akinlua, A ^{[1
]}

Ajayi, TR

Adeleke, BB

机构：

[1] Obafemi Awolowo Univ, Dept Chem, Ife, Nigeria

[2] Obafemi Awolowo Univ, Dept Geol, Ife, Nigeria

[3] Univ Ibadan, Dept Chem, Ibadan, Nigeria

来源：

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 2006年 / 50卷 / 3-4期

关键词：

light hydrocarbons; niger delta; biodegradation; evaporative fractionation;

D O I：

10.1016/j.petrol.2005.12.003

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A suite of oil samples from an onshore-swamp field in the northwestern Niger Delta was analyzed using whole oil gas chromatography. The oil samples were analyzed to correlate the oils and to evaluate post generative alterations using light hydrocarbons. Light hydrocarbon based parameters were compared with higher molecular weight hydrocarbon correlation based parameters. Two distinct oil groups were identified based on light hydrocarbon parameters, which agreed with the correlation based on higher molecular weight hydrocarbon parameters. The discrimination of the two groups is a reflection of post generative alteration-biodegradation. The study showed that light hydrocarbon distribution has strong influence on evaporative fractionation of the oils. It also revealed that the process that initiates biodegradation has significant influence on carbocyclic ring closure. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：308 / 314

页数：7

共 18 条

[1]

Ahsan A., 2000, PETROLEUM GEOCHEMIST, P57

[2]

Akinlua A, 2000, PETROLEUM GEOCHEMIST, P81

[3] OIL-GENERATING COALS OF THE SAN-JUAN BASIN, NEW-MEXICO AND COLORADO, USA [J].