Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf
Introduction. The conditions determining the distribution of abnormal formation pressures in the aquatic area of the Sakhalin shelf are analysed using boring data.Aim. To analyse the genesis of abnormally high pore pressure (AHPP) or abnormally high formation pressure (AHFP) zones and identify the p...
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Sergo Ordzhonikidze Russian State University for Geological Prospecting
2023
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Online Access: | https://doi.org/10.32454/0016-7762-2022-64-5-41-53 https://doaj.org/article/4c40dd3d256a459083c911ab46a94ed7 |
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ftdoajarticles:oai:doaj.org/article:4c40dd3d256a459083c911ab46a94ed7 2023-05-15T18:08:39+02:00 Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf A. K. Shatyrov 2023-02-01T00:00:00Z https://doi.org/10.32454/0016-7762-2022-64-5-41-53 https://doaj.org/article/4c40dd3d256a459083c911ab46a94ed7 RU rus Sergo Ordzhonikidze Russian State University for Geological Prospecting https://www.geology-mgri.ru/jour/article/view/827 https://doaj.org/toc/0016-7762 https://doaj.org/toc/2618-8708 0016-7762 2618-8708 doi:10.32454/0016-7762-2022-64-5-41-53 https://doaj.org/article/4c40dd3d256a459083c911ab46a94ed7 Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 5, Pp 41-53 (2023) авпд авпод анпд сахалин поровое давление пористость ув Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.32454/0016-7762-2022-64-5-41-53 2023-03-19T01:40:25Z Introduction. The conditions determining the distribution of abnormal formation pressures in the aquatic area of the Sakhalin shelf are analysed using boring data.Aim. To analyse the genesis of abnormally high pore pressure (AHPP) or abnormally high formation pressure (AHFP) zones and identify the pore pressure heterogeneities of the Sakhalin shelf.Materials and methods. Data systematization and statistical generalization, partial borrowing of materials from field data, reference literature and published materials. Modelling of the AHPP (AHFP) formation process was performed using the PetroMod software (Schlumberger).Results. The study revealed the isolated AHPP zones of the Sakhalin shelf, related to the syngenetic AHPPs and typically encountered in facies that develop downward the regional dip and consist of deltaic sediments, formed subsequently in the environments of internal neritic (subsaline-aqueous and offshore-marine sediments) and middle neritic (shallow marine sediments) zones, i.e., in places with the large mass accumulation rate. From this position, the AHPPs (AHFPs) in the Paleo-Amur deltaic sediments of the Sakhalin shelf were studied. Various procedures and direct borehole measurements proved the sectional presence of AHPP (AHFP) zones. Within the limits of the Sakhalin shelf, an increase in the formation pressure is recorded in several boreholes, i.e., zones of abnormally high formation pressure (AHFP) are revealed. The process of forming AHPP (AHFP) should be modelled based on the knowledge about the compaction processes of rocks, as well as their initial, final and normal porosity, density and pressure. Article in Journal/Newspaper Sakhalin Directory of Open Access Journals: DOAJ Articles Proceedings of higher educational establishments. Geology and Exploration 5 41 53 |
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Directory of Open Access Journals: DOAJ Articles |
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авпд авпод анпд сахалин поровое давление пористость ув Geology QE1-996.5 |
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авпд авпод анпд сахалин поровое давление пористость ув Geology QE1-996.5 A. K. Shatyrov Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf |
topic_facet |
авпд авпод анпд сахалин поровое давление пористость ув Geology QE1-996.5 |
description |
Introduction. The conditions determining the distribution of abnormal formation pressures in the aquatic area of the Sakhalin shelf are analysed using boring data.Aim. To analyse the genesis of abnormally high pore pressure (AHPP) or abnormally high formation pressure (AHFP) zones and identify the pore pressure heterogeneities of the Sakhalin shelf.Materials and methods. Data systematization and statistical generalization, partial borrowing of materials from field data, reference literature and published materials. Modelling of the AHPP (AHFP) formation process was performed using the PetroMod software (Schlumberger).Results. The study revealed the isolated AHPP zones of the Sakhalin shelf, related to the syngenetic AHPPs and typically encountered in facies that develop downward the regional dip and consist of deltaic sediments, formed subsequently in the environments of internal neritic (subsaline-aqueous and offshore-marine sediments) and middle neritic (shallow marine sediments) zones, i.e., in places with the large mass accumulation rate. From this position, the AHPPs (AHFPs) in the Paleo-Amur deltaic sediments of the Sakhalin shelf were studied. Various procedures and direct borehole measurements proved the sectional presence of AHPP (AHFP) zones. Within the limits of the Sakhalin shelf, an increase in the formation pressure is recorded in several boreholes, i.e., zones of abnormally high formation pressure (AHFP) are revealed. The process of forming AHPP (AHFP) should be modelled based on the knowledge about the compaction processes of rocks, as well as their initial, final and normal porosity, density and pressure. |
format |
Article in Journal/Newspaper |
author |
A. K. Shatyrov |
author_facet |
A. K. Shatyrov |
author_sort |
A. K. Shatyrov |
title |
Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf |
title_short |
Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf |
title_full |
Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf |
title_fullStr |
Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf |
title_full_unstemmed |
Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf |
title_sort |
distribution characteristics of abnormal formation pressures in the aquatic area of the sakhalin shelf |
publisher |
Sergo Ordzhonikidze Russian State University for Geological Prospecting |
publishDate |
2023 |
url |
https://doi.org/10.32454/0016-7762-2022-64-5-41-53 https://doaj.org/article/4c40dd3d256a459083c911ab46a94ed7 |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 5, Pp 41-53 (2023) |
op_relation |
https://www.geology-mgri.ru/jour/article/view/827 https://doaj.org/toc/0016-7762 https://doaj.org/toc/2618-8708 0016-7762 2618-8708 doi:10.32454/0016-7762-2022-64-5-41-53 https://doaj.org/article/4c40dd3d256a459083c911ab46a94ed7 |
op_doi |
https://doi.org/10.32454/0016-7762-2022-64-5-41-53 |
container_title |
Proceedings of higher educational establishments. Geology and Exploration |
container_issue |
5 |
container_start_page |
41 |
op_container_end_page |
53 |
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