Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline
A comprehensive analysis has been conducted on the geological structure of the entire Jurassic interval within the southwestern part of the South Taymyr Monocline, which has allowed a more precise understanding of the structure of the Khabei gas field and the identification of prospective objects of...
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ftdoajarticles:oai:doaj.org/article:cc9531dfbf774759941a2c89fc0c776e 2023-11-12T04:27:11+01:00 Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline Ivan S. Igonin Evgeniy A. Zyza Irina Yu. Kuleshova Polina E. Zherzhova Anna V. Kiryanina Andrey N. Bondarev 2023-09-01T00:00:00Z https://doi.org/10.18599/grs.2023.3.9 https://doaj.org/article/cc9531dfbf774759941a2c89fc0c776e EN RU eng rus Georesursy Ltd. https://geors.ru/archive/article/1268/ https://doaj.org/toc/1608-5043 https://doaj.org/toc/1608-5078 doi:10.18599/grs.2023.3.9 1608-5043 1608-5078 https://doaj.org/article/cc9531dfbf774759941a2c89fc0c776e Georesursy, Vol 25, Iss 3, Pp 65-74 (2023) structure-lithological traps filling of erosional incisions khabei licence block hydrocarbon resources seismic data Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.18599/grs.2023.3.9 2023-10-15T00:37:47Z A comprehensive analysis has been conducted on the geological structure of the entire Jurassic interval within the southwestern part of the South Taymyr Monocline, which has allowed a more precise understanding of the structure of the Khabei gas field and the identification of prospective objects of similar geological pattern. The study utilized CDP 2D seismic data, covering a total length of 7835 kilometers, as well as results from exploratory and appraisal drilling. Based on visual analysis of temporal cross-sections, an assumption has been made regarding the correlation between reservoir development zones and paleo-channel systems of the Lower-Middle Jurassic deposits. In order to identify and locate such systems, an analysis of temporal cross-sections, maps of total Jurassic deposit thickness, and maps of dynamic attributes were conducted. As a result, areas of development of large paleo-channel systems (paleo-valleys) within the South Taymyr Monocline have been delineated through integration. These identified zones are characterized by relatively shallow burial depths of up to 2.5 km, the absence of abnormally high reservoir pressures (AHBP), and comparably high filtration-capacity properties for Jurassic reservoirs (porosity – 22%, permeability – 25–50 mD). However, considering the complexity of these objects’ structures and the uncertainties caused by the low degree of geological-geophysical exploration in the study area, it is recommended to conduct additional seismic surveys (CDP 3D) to maturate the objects for exploration drilling. Article in Journal/Newspaper Taimyr Taymyr Directory of Open Access Journals: DOAJ Articles Taymyr ENVELOPE(89.987,89.987,68.219,68.219) Georesursy 25 3 65 74 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
structure-lithological traps filling of erosional incisions khabei licence block hydrocarbon resources seismic data Geology QE1-996.5 |
spellingShingle |
structure-lithological traps filling of erosional incisions khabei licence block hydrocarbon resources seismic data Geology QE1-996.5 Ivan S. Igonin Evgeniy A. Zyza Irina Yu. Kuleshova Polina E. Zherzhova Anna V. Kiryanina Andrey N. Bondarev Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline |
topic_facet |
structure-lithological traps filling of erosional incisions khabei licence block hydrocarbon resources seismic data Geology QE1-996.5 |
description |
A comprehensive analysis has been conducted on the geological structure of the entire Jurassic interval within the southwestern part of the South Taymyr Monocline, which has allowed a more precise understanding of the structure of the Khabei gas field and the identification of prospective objects of similar geological pattern. The study utilized CDP 2D seismic data, covering a total length of 7835 kilometers, as well as results from exploratory and appraisal drilling. Based on visual analysis of temporal cross-sections, an assumption has been made regarding the correlation between reservoir development zones and paleo-channel systems of the Lower-Middle Jurassic deposits. In order to identify and locate such systems, an analysis of temporal cross-sections, maps of total Jurassic deposit thickness, and maps of dynamic attributes were conducted. As a result, areas of development of large paleo-channel systems (paleo-valleys) within the South Taymyr Monocline have been delineated through integration. These identified zones are characterized by relatively shallow burial depths of up to 2.5 km, the absence of abnormally high reservoir pressures (AHBP), and comparably high filtration-capacity properties for Jurassic reservoirs (porosity – 22%, permeability – 25–50 mD). However, considering the complexity of these objects’ structures and the uncertainties caused by the low degree of geological-geophysical exploration in the study area, it is recommended to conduct additional seismic surveys (CDP 3D) to maturate the objects for exploration drilling. |
format |
Article in Journal/Newspaper |
author |
Ivan S. Igonin Evgeniy A. Zyza Irina Yu. Kuleshova Polina E. Zherzhova Anna V. Kiryanina Andrey N. Bondarev |
author_facet |
Ivan S. Igonin Evgeniy A. Zyza Irina Yu. Kuleshova Polina E. Zherzhova Anna V. Kiryanina Andrey N. Bondarev |
author_sort |
Ivan S. Igonin |
title |
Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline |
title_short |
Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline |
title_full |
Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline |
title_fullStr |
Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline |
title_full_unstemmed |
Hydrocarbon prospectivity of pinch-out zone of Jurassic deposits in Southwestern part of South Taimyr Monocline |
title_sort |
hydrocarbon prospectivity of pinch-out zone of jurassic deposits in southwestern part of south taimyr monocline |
publisher |
Georesursy Ltd. |
publishDate |
2023 |
url |
https://doi.org/10.18599/grs.2023.3.9 https://doaj.org/article/cc9531dfbf774759941a2c89fc0c776e |
long_lat |
ENVELOPE(89.987,89.987,68.219,68.219) |
geographic |
Taymyr |
geographic_facet |
Taymyr |
genre |
Taimyr Taymyr |
genre_facet |
Taimyr Taymyr |
op_source |
Georesursy, Vol 25, Iss 3, Pp 65-74 (2023) |
op_relation |
https://geors.ru/archive/article/1268/ https://doaj.org/toc/1608-5043 https://doaj.org/toc/1608-5078 doi:10.18599/grs.2023.3.9 1608-5043 1608-5078 https://doaj.org/article/cc9531dfbf774759941a2c89fc0c776e |
op_doi |
https://doi.org/10.18599/grs.2023.3.9 |
container_title |
Georesursy |
container_volume |
25 |
container_issue |
3 |
container_start_page |
65 |
op_container_end_page |
74 |
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1782340884800471040 |