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Classification and Quantitative Characterization of Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea
[Image: see text] Based on productivity test data and physical property test results from multiple wells, a classification scheme of Archean metamorphic buried hill reservoirs in the Bohai Sea is established by means of mathematical function fitting. By combining data from cores, casting thin sectio...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536061/ https://www.ncbi.nlm.nih.gov/pubmed/37780001 http://dx.doi.org/10.1021/acsomega.3c04890 |
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author | Ren, Shuyue Lv, Dingyou Yi, Jian Shan, Xuanlong Liu, Xiaojian Zhu, Bohan Wang, Wei Liu, Pengcheng |
author_facet | Ren, Shuyue Lv, Dingyou Yi, Jian Shan, Xuanlong Liu, Xiaojian Zhu, Bohan Wang, Wei Liu, Pengcheng |
author_sort | Ren, Shuyue |
collection | PubMed |
description | [Image: see text] Based on productivity test data and physical property test results from multiple wells, a classification scheme of Archean metamorphic buried hill reservoirs in the Bohai Sea is established by means of mathematical function fitting. By combining data from cores, casting thin sections, scanning electron microscopy, imaging logging, and high-pressure mercury injection and nitrogen adsorption tests, we clarified the reservoir composition and pore structure characteristics of different types of reservoirs are clarified. Furthermore, taking the BZ19-6 and 13-2 wells in the Archean metamorphic buried hills as an example, the development sites of different types of reservoirs are analyzed and the reservoir development model is established. The results show that the Archean metamorphic buried hill reservoirs in the Bohai Sea can be divided into three categories and six subcategories, including type I reservoirs with porosities greater than 8% or permeabilities greater than 1 × 10(–3) μm(2) and type II reservoirs with porosities of 5–8% or permeabilities in the range of 0.1–1 × 10(–3) μm(2). Reservoirs with porosities of 2–5% and permeabilities of 0.01–0.1 × 10(–3) μm(2) are type III reservoirs. Each type of reservoir can be further divided into a fracture-pore type and a fracture type according to the relative contribution of the porosity and permeability to the reservoir. From type I to type III, the dissolution degree and fracture development gradually weaken, the pore size gradually decreases, and the pore volume gradually decreases. The distribution of favorable reservoirs is comprehensively controlled by weathering and tectonic transformation. The presence of a weathered glutenite zone, weathered leaching zone, or weathered disintegration zone is favorable for the development of type I reservoirs in the weathering crust. In the inner part of the buried hill, the presence of a fracture zone with a thickness of more than 10 m or a dense fracture zone with a thickness of more than 40 m is favorable for the formation of type I reservoirs. |
format | Online Article Text |
id | pubmed-10536061 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-105360612023-09-29 Classification and Quantitative Characterization of Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea Ren, Shuyue Lv, Dingyou Yi, Jian Shan, Xuanlong Liu, Xiaojian Zhu, Bohan Wang, Wei Liu, Pengcheng ACS Omega [Image: see text] Based on productivity test data and physical property test results from multiple wells, a classification scheme of Archean metamorphic buried hill reservoirs in the Bohai Sea is established by means of mathematical function fitting. By combining data from cores, casting thin sections, scanning electron microscopy, imaging logging, and high-pressure mercury injection and nitrogen adsorption tests, we clarified the reservoir composition and pore structure characteristics of different types of reservoirs are clarified. Furthermore, taking the BZ19-6 and 13-2 wells in the Archean metamorphic buried hills as an example, the development sites of different types of reservoirs are analyzed and the reservoir development model is established. The results show that the Archean metamorphic buried hill reservoirs in the Bohai Sea can be divided into three categories and six subcategories, including type I reservoirs with porosities greater than 8% or permeabilities greater than 1 × 10(–3) μm(2) and type II reservoirs with porosities of 5–8% or permeabilities in the range of 0.1–1 × 10(–3) μm(2). Reservoirs with porosities of 2–5% and permeabilities of 0.01–0.1 × 10(–3) μm(2) are type III reservoirs. Each type of reservoir can be further divided into a fracture-pore type and a fracture type according to the relative contribution of the porosity and permeability to the reservoir. From type I to type III, the dissolution degree and fracture development gradually weaken, the pore size gradually decreases, and the pore volume gradually decreases. The distribution of favorable reservoirs is comprehensively controlled by weathering and tectonic transformation. The presence of a weathered glutenite zone, weathered leaching zone, or weathered disintegration zone is favorable for the development of type I reservoirs in the weathering crust. In the inner part of the buried hill, the presence of a fracture zone with a thickness of more than 10 m or a dense fracture zone with a thickness of more than 40 m is favorable for the formation of type I reservoirs. American Chemical Society 2023-09-13 /pmc/articles/PMC10536061/ /pubmed/37780001 http://dx.doi.org/10.1021/acsomega.3c04890 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Ren, Shuyue Lv, Dingyou Yi, Jian Shan, Xuanlong Liu, Xiaojian Zhu, Bohan Wang, Wei Liu, Pengcheng Classification and Quantitative Characterization of Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea |
title | Classification and Quantitative Characterization of
Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea |
title_full | Classification and Quantitative Characterization of
Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea |
title_fullStr | Classification and Quantitative Characterization of
Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea |
title_full_unstemmed | Classification and Quantitative Characterization of
Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea |
title_short | Classification and Quantitative Characterization of
Archean Metamorphic Buried Hill Reservoirs in the Bohai Sea |
title_sort | classification and quantitative characterization of
archean metamorphic buried hill reservoirs in the bohai sea |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536061/ https://www.ncbi.nlm.nih.gov/pubmed/37780001 http://dx.doi.org/10.1021/acsomega.3c04890 |
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