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Minerals
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Dolomitization, Recrystallization, and Cementation in Carbonate Sedimentary Rocks
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Dolomitization, Recrystallization, and Cementation in Carbonate Sedimentary Rocks

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Geochemistry and Geochronology".

Deadline for manuscript submissions: 20 June 2024 | Viewed by 2061

Special Issue Editors

Dr. Zhanfeng Qiao

E-Mail Website
Guest Editor
PetroChina Hangzhou Research Institute of Geology, Hangzhou 310023, China
Interests: carbonate sequence stratigraphy and deposition; dolomitization; karstification; reservoir characterization
Dr. Lei Jiang

E-Mail Website
Guest Editor
Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
Interests: diagenesis; petroleum geology; carbonate and evaporite
Special Issues, Collections and Topics in MDPI journals
Dr. Guangwei Wang

E-Mail Website
Guest Editor
Shandong Provincial Key Laboratory of Deep Oil & Gas, China University of Petroleum (East China), Qingdao 266580, China
Interests: diagenesis; dolomitization; porosity evolution; TSR

Special Issue Information

Dear Colleagues,

Dolomitization, recrystallization and cementation are the most commonly occurring types of diagenetic modification for carbonate rock. They can develop in a variety of situations, conditions, and stages, impacting the pore evolution of carbonate rock reservoirs.

In recent years, remarkable advances have been made in experimental analysis techniques, such as laser U-Pb dating, clumped isotopes, and surface scanning of rare earth elements. These developments have offered an opportunity to understand the stages, diagenetic environments, and related geofluid properties of dolomitization, recrystallization, and cementation.

Different modes of diagenesis, taking place under different conditions, tend to make different contributions to the formation and maintenance of pores in carbonate rock reservoirs during the burial stage, especially during dolomitization. Understanding their contributions to the evolution of reservoir pores can help to promote efforts to predict the distribution and heterogeneity of carbonate reservoirs.

This Special Issue aims to contribute to disseminating advances in the understanding of dolomitization, recrystallization, and cementation in order to decipher the evolution of the carbonate rock and related reservoir.

Dr. Zhanfeng Qiao
Dr. Lei Jiang
Dr. Guangwei Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • dolomitization
  • recrystallization
  • cementation
  • carbonate reservoir
  • advances in geochronology

Published Papers (2 papers)

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Research

16 pages, 14962 KiB  
Article
Genesis and Related Reservoir Development Model of Ordovician Dolomite in Shuntogol Area, Tarim Basin
by Liangxuanzi Zhong, Leli Cheng, Heng Fu, Shaoze Zhao, Xiaobin Ye, Yidong Ding and Yin Senlin
Minerals 2024, 14(6), 545; https://doi.org/10.3390/min14060545 - 25 May 2024
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Abstract
The Ordovician thick dolostone in Shuntogol area of the Tarim Basin has the potential to form a large-scale reservoir, but its genesis and reservoir development model are still unclear. Starting from a sedimentary sequence, this study takes a batch of dolostone samples obtained [...] Read more.
The Ordovician thick dolostone in Shuntogol area of the Tarim Basin has the potential to form a large-scale reservoir, but its genesis and reservoir development model are still unclear. Starting from a sedimentary sequence, this study takes a batch of dolostone samples obtained from new drilling cores in recent years as the research object. On the basis of core observation and thin section identification, trace elements, cathodoluminescence, carbon and oxygen isotopes, rare earth elements, and X-ray diffraction order degree tests were carried out to discuss the origin of the dolomite and summarize the development model of the dolostone reservoir. The analysis results show that the Ordovician dolomite in the study area had a good crystalline shape, large thickness, high Fe and Mn values, and mostly showed bright red light or bright orange–red light under cathode rays. The ratio of δ18O values to seawater values at the same time showed a negative bias; the δCe values were negative anomalies, the δEu values were positive anomalies, and the order degree was high. This indicates that the dolomitization process occurred in a relatively closed diagenetic environment. The Ordovician carbonate rocks in the study area were low-lying during the sedimentary period, and with the rise of sea level, the open platform facies continued to develop. When the Middle and Lower Ordovician series entered the burial stage, the main hydrocarbon source rocks of the lower Cambrian Series entered the oil generation peak, and the resulting formation overpressure provided the dynamic source for the upward migration of the lower magnesium-rich fluid, and the dolomitization fluid entered the karst pore system in the target layer to produce all the dolomitization. This set of dolostone reservoirs is large in scale and can be used as a favorable substitute area for deep carbonate exploration for continuous study. Full article
(This article belongs to the Special Issue Dolomitization, Recrystallization, and Cementation in Carbonate Sedimentary Rocks)
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18 pages, 14029 KiB  
Article
Distribution and Genesis of the Deep Buried, Fractured and Vuggy Dolostone Reservoir in the Lower Ordovician Succession, North Tarim Basin, Northwestern China
by Lijun Gao, Jie Li, Guorong Li, Liyun Fu and Yongli Liu
Minerals 2024, 14(1), 58; https://doi.org/10.3390/min14010058 - 2 Jan 2024
Viewed by 1019
Abstract
Recently, a series of prolific fracture-vug reservoirs have been discovered in the lower Ordovician dolostone successions of the northern Tarim Basin. However, the genesis of these reservoirs remains unclear. In this study, observations on drilling cores and thin sections identify the pore space [...] Read more.
Recently, a series of prolific fracture-vug reservoirs have been discovered in the lower Ordovician dolostone successions of the northern Tarim Basin. However, the genesis of these reservoirs remains unclear. In this study, observations on drilling cores and thin sections identify the pore space characterized by dissolved fractures, fissures, and vugs. Petrology, cathodoluminescence, and homogenization temperatures of fluid inclusions aid in establishing the diagenetic paragenetic sequence. Dissolving enlargement occurred after chemical compaction of overlying limestone and before the Permian volcanic activity. Breccia pores containing unique fillings of terrestrial materials (quartz sand and allogenic kaolinite) and calcite cements with negative δ18OPDB values (−18.4‰) along with 87Sr/86Sr ratios (up to 0.71026) indicate that the dissolving fluid originated from meteoric freshwater at the surface. The δ18OSMOW values of the calcite precipitating fluid (−2.1‰ to −8.7‰) further suggest freshwater as the source of the dissolving fluid, buffered by the Ordovician wall rocks or formation water. As the distance from the unconformity surface increases, both the homogenization temperature and δ18OPDB values of the breccia pore-filling calcite in the southern study area gradually elevate and deplete, respectively, indicating a rise in temperature during the infiltration of meteoric freshwater with increasing subsurface temperatures. The abnormal reflection bodies identified as reservoirs in seismic profiles along deep-seated strike-slip faults delineate these faults as the channel for the infiltration of meteoric freshwater. The penetrating strata of these faults and the high 87Sr/86Sr values of breccia pore-filling calcite suggest that karstification occurred during the Devonian period. Accordingly, we establish a deep karst model in which the Devonian meteoric freshwater penetrated along the strike-slip faults and dissolved the Ordovician dolostones, resulting in the development of deep buried karstic fault reservoirs in the southern region of the northern Tarim Basin. Full article
(This article belongs to the Special Issue Dolomitization, Recrystallization, and Cementation in Carbonate Sedimentary Rocks)
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