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Application of Biomarkers and Oil Fingerprinting for Genetic Classification of Oil Families and Prediction of Petroleum Migration Pathways of Aryskum Downfold of South-Torgay Depression (in English)Dec 11, 2021
This presentation in English is from the 2021 SPE Annual Caspian Technical Conference. Our archived 2020-21 event content is now available free to SPE members!
- Paper Number: SPE-207037-MS
- Published: 5 October 2021
- Authors: Yessimkhan Sherekhanovich Seitkhaziyev; Rakhim Nagangaliyevich Uteyev; Nariman Danebekovich Sarsenbekov
This paper presentation shares the results of fingerprinting and biomarker analysis of 254 oil samples derived from 11 different fields and structures in Aryskum downfold of the South-Torgay depression for genetic classification of oils and prediction of petroleum migration pathways. According to the oil fingerprinting results based on patented Shell technology, 12 groups of oils were found.
Biomarker analysis was carried out for 20 oil samples, according to the results of which all studied oils were formed in terrigenous (shaly) OM, deposited in lacustrine environment. Oils from central Nuraly are more thermally mature and lighter in density than those from western Nuraly. Oils of Akshabulak East are thermally less mature than oils of Central Akshabulak and Akshabulak South despite its deeper deposition.
Based on the analysis, five prospective hydrocarbon accumulation zones were presented for increasing hydrocarbon reserves in the future. But the results of the performed studies provide valuable information only when integrated with confirmed geological and seismic data.
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