Organic petrography and geochemistry of the prolific source rocks from the Jurassic Najmah and Cretaceous Makhul Formations in Kuwait - Validation and expansion of Raman spectroscopic thermal maturity applications

被引：13

作者：

Al-Hajeri, Mubarak ^{[1
]}

Sauerer, Bastian ^{[2
]}

Furmann, Agnieszka ^{[3
]}

Amer, Aimen ^{[4
]}

Al-Khamiss, Awatif ^{[1
]}

Abdallah, Wael ^{[2
]}

机构：

[1] Kuwait Oil Co, Explorat Grp, Ahmadi 61001, Kuwait

[2] Schlumberger Middle East SA, Schlumberger Dhahran Carbonate Res Ctr, POB 39011, Dammam 31942, Saudi Arabia

[3] Schlumberger Reservoir Labs, 6350 West Sam Houston Pkwy North, Houston, TX 77041 USA

[4] Schlumberger Oilfield Serv, POB 9056, East Ahmadi 61001, Kuwait

来源：

INTERNATIONAL JOURNAL OF COAL GEOLOGY | 2021年 / 236卷

关键词：

Shale; Raman spectroscopy; Type ILS kerogen; Maturity; Hydrogen index; Najmah Formation; Makhul Formation;

D O I：

10.1016/j.coal.2020.103654

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：

Raman spectroscopy has been applied in numerous sedimentary formations to infer thermal maturity of mostly Type-II kerogen in organic-rich mudrocks. Robust correlations have been established between the Raman spectroscopic signal and vitrinite reflectance equivalents (%VRE) of the organic matter. Herein, traditional evaluation methods, organic petrography and geochemistry, were applied in addition to Raman spectroscopy, to study the prolific source rocks of the Najmah and Makhul Formations in Kuwait. The elemental analysis of isolated kemgen provided insight into the kerogen type and likely classified samples from these two formations as kerogen Type II-S. The standard organic petrography maturity and geochemistry parameters were correlated to the spectroscopy derived Raman band separation (RBS) values. This allowed to further validate our previously established thermal maturity correlation (RBS vs %VRE with R-2 = 0.80) and generate a new geochemistry-related correlation of RBS vs hydrogen index (HI) with R-2 = 0.92.

引用

页数：11

共 73 条

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