Petrological record of CO2 influx in the Dongying Sag, Bohai Bay Basin, NE China

Li, Fulai; Li, Wenshuai

doi:10.1016/j.apgeochem.2017.07.015

Cited by 22 publications

(6 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simultaneously, upwelling mantle‐derived CO 2 ‐rich heat flow should significantly increase the geothermal gradient in the study area, creating geothermal fluid enrichment condition for later carbonatization. According to our latest research, its geothermal fluid temperature reaches 77.10 to 95.06 °C, which is consistent with the estimated palaeotemperatures (78.64 to 85.07 °C) in the study area (Li & Li, ). To our knowledge, dawsonite formed at >120 °C was rarely reported, which is consistent with the critical value at which dawsonite can be stable of 120 °C in closed systems.…”

Section: Discussionsupporting

confidence: 88%

“…In addition, a regional geothermal field is the synthetic reflection of deep structure, fault activity, and magmatism. The hydraulic connection is strong between Shengli geothermal oil reservoirs and lower active magma chambers (Li & Li, ). Therefore, the distribution of mantle‐derived inorganic CO 2 gas fields (pools) generally corresponds to the regional relatively high geothermal field.…”

Section: Geologic Settingmentioning

confidence: 99%

See 1 more Smart Citation

Shengli Oilfield, China as a natural analogue of CO₂ storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

2017

Geological Journal

Self Cite

View full text Add to dashboard Cite

The Shengli Oilfield is discussed to investigate CO2 trapping mechanisms involved in geothermal oil reservoir systems. Diagenetic fluid evolution of the dawsonite‐bearing sandstones from the Dongying Sag, Bohai Bay Basin, China, was studied to understand the CO2 migration and accumulation and the formation of dawsonite, as a possible mechanism for mineral trapping of CO2 in geothermal fields. Information about the petrology, dawsonite‐forming fluid, authigenic mineral associations, and diagenetic fluid evolution mode was analysed using techniques including thin‐section identification, scanning electron microscope observation, X‐ray diffraction analysis, X‐ray fluorescence spectrum analysis, hydrochemistry, and stable isotope analyses. The paragenetic sequence, from early to late, is early calcite (A)–compaction–dissolution–quartz overgrowth–late calcite (B1)–ferrocalcite (A)–dawsonite–late calcite (B2)–ferrocalcite (B)–ankerite–siderite or pyrite. The current in situ formation water type of the dawsonite‐bearing sandstone strata is NaHCO3, with the typical characteristics of weak alkaline, high mineralization, and high Na+ + K+ and HCO3− content. The formation fluid from which the dawsonite forms is mainly sealed underground brine, which has been affected by atmospheric precipitation and magmatic activity, and is thus mixed with surface meteoric water and subsurface hydrothermal fluid. The fluid evolution process sequence is alkaline fluid environment prior to CO2 influx, an early micritic or sparry calcite (A) association; acidic fluid environment after CO2 influx, a quartz overgrowth and kaolinite association; alkalescent fluid environment, an association of late calcite (B1), ferrocalcite (A), and illite; alkaline fluid environment, a dawsonite and late calcite (B2) association; and weak‐alkaline fluid environment, an association of ferrocalcite (B), ankerite, siderite, and pyrite.

show abstract

Section: Discussionsupporting

confidence: 88%

Section: Geologic Settingmentioning

confidence: 99%

Shengli Oilfield, China as a natural analogue of CO₂ storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

2017

Geological Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…In order to investigate the carbon source of the biotic carbonate minerals and then further understand the relationship between carbonate biomineralization and the microorganisms, stable carbon isotope values of biotic and abiotic carbonate minerals were determined through Isotope Analyzer (Picarro G2121-i, Picarro Inc., Santa Clara, CA, USA), according to the method in previous studies [50][51][52][53][54][55].…”

Section: Stable Carbon and Nitrogen Isotope Analysesmentioning

confidence: 99%

Bio-Precipitation of Carbonate and Phosphate Minerals Induced by the Bacterium Citrobacter freundii ZW123 in an Anaerobic Environment

Sun

Zhao

et al. 2020

Minerals

View full text Add to dashboard Cite

In this study, a facultative anaerobic strain isolated from marine sediments and identified as Citrobacter freundii, was used to induce the precipitation of carbonate and phosphate minerals in the laboratory under anaerobic conditions. This is the first time that the ability of C. freundii ZW123 to precipitate carbonate and phosphate minerals has been demonstrated. During the experiments, carbonic anhydrase, alkaline phosphatase and ammonium released by the bacteria not only promoted an increase in pH, but also drove the supersaturation and precipitation of carbonate and phosphate minerals. The predominant bio-mediated minerals precipitated at various Mg/Ca molar ratios were calcite, vaterite, Mg-rich calcite, monohydrocalcite and struvite. A preferred orientation towards struvite was observed. Scanning transmission electron microscopy (STEM) and elemental mapping showed the distribution of magnesium and calcium elements within Mg-rich calcite. Many organic functional groups, including C=O, C–O–C and C–O, were detected within the biominerals, and these functional groups were also identified in the associated extracellular polymeric substances (EPS). Fifteen kinds of amino acid were detected in the biotic minerals, almost identical to those of the EPS, indicating a close relationship between EPS and biominerals. Most amino acids are negatively charged and able to adsorb cations, providing an oversaturated microenvironment to facilitate mineral nucleation. The X-ray photoelectron spectroscopy (XPS) spectrum of struvite shows the presence of organic functional groups on the mineral surface, suggesting a role of the microorganism in struvite precipitation. The ZW123 bacteria provided carbon and nitrogen for the formation of the biotic minerals through their metabolism, which further emphasizes the close relationship between biominerals and the microorganisms. Thermal studies showed the enhanced thermal stability of biotic minerals, perhaps due to the participation of the bacteria ZW123. The presence of amino acids such as Asp and Glu may explain the high magnesium content of some calcites. Molecular dynamics simulations demonstrated that the morphological change and preferred orientation were likely caused by selective adsorption of EPS onto the various struvite crystal surfaces. Thus, this study shows the significant role played by C. freundii ZW123 in the bioprecipitation of carbonate and phosphate minerals and provides some insights into the processes involved.

show abstract

“…This acidic water facilitates dissolution of acid-labile minerals; for example, feldspar is easily altered by CO 2 , transforming into authigenic dawsonite, kaolinite and quartz. Thus, cavernous-sieve dissolution pores and moldic pores are abundantly developed in sedimentary and volcanic rocks with acid-labile components (Zhou et al, 2012;Li and Li, 2017;Zhu et al, 2017). Dissolution pores or holes may form in limestone.…”

Section: Exploration Significancementioning

confidence: 99%

Reassessment of the Distribution of Mantle CO₂ in the Bohai Sea, China: The Perspective from the Source and Pathway System

Tang

Guo

Keqiang³

et al. 2022

Acta Geologica Sinica (Eng)

View full text Add to dashboard Cite

show abstract

Petrological record of CO2 influx in the Dongying Sag, Bohai Bay Basin, NE China

Cited by 22 publications

References 48 publications

Shengli Oilfield, China as a natural analogue of CO₂ storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

Shengli Oilfield, China as a natural analogue of CO₂ storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

Bio-Precipitation of Carbonate and Phosphate Minerals Induced by the Bacterium Citrobacter freundii ZW123 in an Anaerobic Environment

Reassessment of the Distribution of Mantle CO₂ in the Bohai Sea, China: The Perspective from the Source and Pathway System

Contact Info

Product

Resources

About

Petrological record of CO2 influx in the Dongying Sag, Bohai Bay Basin, NE China

Cited by 22 publications

References 48 publications

Shengli Oilfield, China as a natural analogue of CO2 storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

Shengli Oilfield, China as a natural analogue of CO2 storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

Bio-Precipitation of Carbonate and Phosphate Minerals Induced by the Bacterium Citrobacter freundii ZW123 in an Anaerobic Environment

Reassessment of the Distribution of Mantle CO2 in the Bohai Sea, China: The Perspective from the Source and Pathway System

Contact Info

Product

Resources

About

Shengli Oilfield, China as a natural analogue of CO₂ storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

Shengli Oilfield, China as a natural analogue of CO₂ storage: Diagenetic fluid evolution mode and potentials for carbon sequestration

Reassessment of the Distribution of Mantle CO₂ in the Bohai Sea, China: The Perspective from the Source and Pathway System