Synthetic saline-aqueous and hydrocarbon fluid inclusions trapped in calcite at temperatures and pressures relevant to hydrocarbon basins: A reconnaissance study

Chen, Yong; Steele‐MacInnis, Matthew; Ge, Yunjin; Zhou, Zhenzhu; Zhou, Yaoqi

doi:10.1016/j.marpetgeo.2016.05.015

Cited by 25 publications

(6 citation statements)

References 40 publications

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“…It has numerous applications including CO 2 fixation [27,28], dolomite precipitation [29], pathological concretions [30], cement remediation [31], and the solid-phase capture of soluble materials [32,33]. At the same time, bio-precipitation of metals ions (Fe, U, Pb, Cd, Ca, Mg, and so on) induced by microorganisms play a vital role in decreasing the contamination of metal ions in soils and water [28,[34][35][36]. Furthermore, the formation of minerals and rocks has also been closely linked to biomineralization [37][38][39][40][41], for example, aerobic bacterial strains can induce the formation of some biominerals such as dolomite, huntite, high Mg-calcite, and hydromagnesite at Earth surface conditions at aqueous Mg/Ca ratios (2 to 11.5).…”

Section: Introductionmentioning

confidence: 99%

Bio-Precipitation of Calcium and Magnesium Ions through Extracellular and Intracellular Process Induced by Bacillus Licheniformis SRB2

et al. 2019

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Removal of calcium and magnesium ions through biomineralization induced by bacteria has been proven to be an effective and environmentally friendly method to improve water quality, but the process and mechanism are far from fully understood. In this study, a newly isolated probiotic Bacillus licheniformis SRB2 (GenBank: KM884945.1) was used to induce the bio-precipitation of calcium and magnesium at various Mg/Ca molar ratios (0, 6, 8, 10, and 12) in medium with 30 g L−1 sodium chloride. Due to the increasing pH and HCO3− and CO32− concentrations caused by NH3 and carbonic anhydrase, about 98% Ca2+ and 50% Mg2+ were precipitated in 12 days. The pathways of bio-precipitation include extracellular and intracellular processes. Biominerals with more negative δ13C values (−16‰ to −18‰) were formed including calcite, vaterite, monohydrocalcite, and nesquehonite with preferred orientation. The nucleation on extracellular polymeric substances was controlled by the negatively charged amino acids and organic functional groups. The intracellular amorphous inclusions containing calcium and magnesium also contributed to the bio-precipitation. This study reveals the process and mechanism of microbial desalination for the removal of calcium and magnesium, and provides some references to explain the formation of the nesquehonite and other carbonate minerals in a natural and ancient earth surface environment.

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Section: Introductionmentioning

confidence: 99%

Bio-Precipitation of Calcium and Magnesium Ions through Extracellular and Intracellular Process Induced by Bacillus Licheniformis SRB2

et al. 2019

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“…Fluid inclusions are a reliable sign for recording the hydrocarbon charging history (Aplin et al, 1999;Chen, Matthew, Ge, Zhou, & Zhou, 2016;Stasiuk & Snowdon, 1997;Xu, Yuan, Xu, & Luo, 2018). To investigate fluid inclusion features and homogenization temperatures, 19 rock samples were selected from the PG2 well and tested with a DSG600 transparent reflectance polarized fluorescence microscope.…”

Section: Dataset and Methodsmentioning

confidence: 99%

Characteristics, diagenetic evolution, and controlling factors of the Es1 deep burial high‐quality sandstone reservoirs in the PG2 oilfield, Nanpu Sag, Bohai Bay Basin, China

et al. 2019

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Significant achievements have been reported for deep oil and gas exploration in the Bohai Bay Basin. Among them, the Nanpu Sag has achieved good deep (greater than 3.5 km) hydrocarbon exploration results. However, the hydrocarbon formation mechanisms and the diagenetic evolution of these high‐quality sandstone reservoirs remain unclear. Mineralogical, petrographic, and fluid inclusion data were selected to investigate the deeply buried sandstone reservoir physical properties, pore systems, and diagenetic features and the main formation mechanisms of the deep high‐quality reservoirs of the Es1 (the top member of the Paleogene Shahejie Formation) sandstones in the Nanpu Sag, eastern China. The results show that the Es1 sandstone reservoirs are dominated by lithic arkoses and have low porosities (average porosity 13.4%) but medium to high permeability (average permeability 188 mD). The pore systems consist of primary intergranular pores, secondary dissolution pores, and microfractures. Loss of porosity is greater due to compaction (average 20.89%) than due to cementation (average 4.82%), and dissolution contributes an improvement in porosity of approximately 5.85%. Two peaks in the inclusion homogenization temperatures were observed: The first fluid inclusion homogenization temperature term ranges from 130°C to 145°C and exhibits yellow fluorescence; the other peak occurs from 155°C to 165°C, showing green fluorescence. Eodiagenesis is due to mechanical compaction, precipitation of early calcite cements and quartz overgrowths, and dissolution of feldspar and carbonate cements. Mesodiagenesis occurs due to mechanical compaction, framework grain (mainly feldspar) dissolution, and precipitation of quartz and late carbonate cements. The main factors controlling the formation of the deep high‐quality reservoirs are the presence of a high hydrodynamic depositional environment (subaqueous distributary channel), the type of provenance (Archean granites), and the creation of secondary porosity by feldspar dissolution.

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“…The fluid pressure during hydrocarbon charge is an important factor controlling the degree of hydrocarbon accumulation in turbidite reservoirs (Munz, 2001;Pironon and Bourdet, 2008;Bourdet et al, 2010;Chen et al, 2016). The characteristics of fluid inclusion assemblages (FIAs), the homogenization temperatures of the syngenetic aqueous inclusions, the homogenization temperatures of the hydrocarbon inclusions were obtained.…”

Section: Fluid Pressure During Hydrocarbon Chargementioning

confidence: 99%

Turbidite Reservoirs in the Dongying Sag, Bohai Bay Basin: Interactions between Carbonate Cementation and Hydrocarbon Charge

Chen

Zhou

Jia

et al. 2021

Acta Geologica Sinica (Eng)

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Synthetic saline-aqueous and hydrocarbon fluid inclusions trapped in calcite at temperatures and pressures relevant to hydrocarbon basins: A reconnaissance study

Cited by 25 publications

References 40 publications

Bio-Precipitation of Calcium and Magnesium Ions through Extracellular and Intracellular Process Induced by Bacillus Licheniformis SRB2

Bio-Precipitation of Calcium and Magnesium Ions through Extracellular and Intracellular Process Induced by Bacillus Licheniformis SRB2

Characteristics, diagenetic evolution, and controlling factors of the Es1 deep burial high‐quality sandstone reservoirs in the PG2 oilfield, Nanpu Sag, Bohai Bay Basin, China

Turbidite Reservoirs in the Dongying Sag, Bohai Bay Basin: Interactions between Carbonate Cementation and Hydrocarbon Charge

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