Geochemical characterization and origin of the Cretaceous Sa'di, Khasib, Mishrif, and Nahr Umr Crude Oils in Halfaya Oilfield, Southern Mesopotamian Basin, Iraq

被引：2

作者：

Al-Khafaji, Amer Jassim ^{[1
]}

Yonis, Sahar Jassim ^{[2
]}

Ibrahim, Rafid N. Al ^{[3
]}

Almarsomi, Shahad ^{[4
]}

Sadooni, Fadhil ^{[5
]}

机构：

[1] Univ Babylon, Dept Geol, Coll Sci, Al Hillah, Iraq

[2] Univ Baghdad, Dept Geol, Coll Sci, Baghdad, Iraq

[3] Univ Basra, Coll Sci, Basra, Iraq

[4] Oil Explorat Co, Baghdad, Iraq

[5] Qatar Univ, Environm Sci Ctr, Doha, Qatar

来源：

PETROLEUM SCIENCE AND TECHNOLOGY | 2021年 / 39卷 / 21-22期

关键词：

Halfaya Oilfield; Mishrif; Sa'di; Nahr Umr; organic geochemistry; Iraq; RESERVOIRS;

D O I：

10.1080/10916466.2021.1980587

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 crude oil samples from the Cretaceous reservoirs in Halfaya Oilfield, Southern Iraq were analyzed using organic geochemistry analysis to study their geochemical characterization and origin. High sulfur content (3.74 +/- 1 wt.%), C-22/C-21, C-29/C-30 hopane, ratios, and low C-19/C-23 and C-24/C-23 for all oil samples are indicators of marine carbonate environment source. Low pr/ph, Pr/nC(17), Ph/nC18, and highest C35S/C34S ratio are consistent with a more reducing carbonate depositional environment. The C-28/C-29 sterane ratio and stable carbon isotope analysis values of crude oils are suggested Upper Jurassic to Middle Cretaceous anoxic marine carbonate source origin.

引用

页码：993 / 1007

页数：15

共 17 条

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