Siderite occurrence in petroleum systems and its potential as a hydrocarbon-migration proxy: A case study of the Catcher Area Development and the Bittern area, UK North Sea

Abdulkarim, Maryam A.; Muxworthy, Adrian R.; Fraser, A. J.; Neumaier, Martin; Hu, Pengxiang; Cowan, Alison

doi:10.1016/j.petrol.2022.110248

Cited by 9 publications

(11 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been identified in about 50% of the CAD samples and its presence is not randomly distributed; with siderite appearing to dominate reservoirs that had been filled via vertical migration e.g., Bonneville field (Figure 8). Similar observations have been made in previous studies of the UK Central North Sea (Badejo et al, 2021c;Abdulkarim et al, 2022). It is also present around the oil-water contact albeit in significantly smaller quantities.…”

Section: Provenance Of the Magnetic Mineralssupporting

confidence: 90%

“…This enables siderite precipitation and preservation with hexagonal pyrrhotite (Larrasoaña et al, 2007). We emphasize that the dominant source of siderite precipitation in the CAD region is unlikely to be biodegradation as there is evidence which supports the formation of siderite inorganically via vertical migration (Badejo et al, 2021a;Badejo et al, 2021c;Abdulkarim et al, 2022). Abdulkarim et al (2022) has shown that in the CAD the majority of siderite is likely formed via this inorganic process.…”

Section: Effect Of Hydrocarbon Fluid Type and Propertiesmentioning

confidence: 77%

“…Here, it is more likely that the reducing environment created by hydrocarbon presence promotes the replacement of hematite and magnetite by siderite in the oil wells (Burton et al, 1993;Machel, 1995). Siderite is also likely to be formed by the reaction of the available Fe 2+ and the excess CO 2 introduced by the hydrocarbons during migration (Bello et al, 2021;Abdulkarim et al, 2022). It has also been identified in some shale samples, all located less than a metre from the reservoir sands and hence must have been influenced by hydrocarbon presence.…”

Section: Provenance Of the Magnetic Mineralsmentioning

confidence: 99%

“…Siderite presence in the CAD region has also been related to hydrocarbon migration (Abdulkarim et al, 2022). It has been identified in about 50% of the CAD samples and its presence is not randomly distributed; with siderite appearing to dominate reservoirs that had been filled via vertical migration e.g., Bonneville field (Figure 8).…”

Section: Provenance Of the Magnetic Mineralsmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Hydrocarbon Presence and Properties on the Magnetic Signature of the Reservoir Sediments of the Catcher Area Development Region, UK North Sea

et al. 2022

Self Cite

View full text Add to dashboard Cite

This paper presents a detailed study investigating the effect of hydrocarbon presence on magnetic mineral diagenesis in sediments from the Catcher Area Development (CAD) region, UK North Sea, between 1,000 and 1,500 m (True Vertical Depth Sub-Sea). Magnetic analysis of core samples from hydrocarbon fields of the region and nearby dry-well sandstones (background) was carried out to determine if their signatures can serve as a proxy for understanding petroleum reservoir systems. From the background samples, nanometric and micron-sized magnetite, hematite and titano-iron oxides, were identified. Hydrocarbon presence in the reservoir sediments was found to diminish the iron-oxide signature and favour the precipitation of hexagonal pyrrhotite, siderite and potentially vivianite, lepidocrocite, greigite and paramagnetic iron sulphides. Hexagonal pyrrhotite was found at the oil-water transition zones. This relationship is possibly related to biodegradation at this interface. Siderite was found in increased abundance at shallower depths within the reservoir, which we attribute to hydrocarbon vertical migration and biodegradation. The interbedded shales also experienced significant magnetic mineral diagenesis that depended on its proximity to the hydrocarbon plume. These findings suggest that mineral magnetism can be applied to the identification of oil-water transition zones, reserve estimation, production planning and the determination of hydrocarbon migration pathways. It also suggests that mineral magnetic methods can be used to estimate the timing of hydrocarbon migration.

show abstract

Section: Provenance Of the Magnetic Mineralssupporting

confidence: 90%

Section: Effect Of Hydrocarbon Fluid Type and Propertiesmentioning

confidence: 77%

Section: Provenance Of the Magnetic Mineralsmentioning

confidence: 99%

Section: Provenance Of the Magnetic Mineralsmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Hydrocarbon Presence and Properties on the Magnetic Signature of the Reservoir Sediments of the Catcher Area Development Region, UK North Sea

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…The magnetic signatures of the hydrocarbon reservoirs are complex and variant (Reynolds et al, 1990;Liu et al, 2006;Emmerton et al, 2013;Roberts, 2015;Abubakar et al, 2020;Badejo et al, 2021aBadejo et al, , 2021bAbdulkarim et al, 2022bAbdulkarim et al, , 2022a. The behaviour of oil-stained sandstones when heated will also be variant even within the oil leg, OWTZ and water leg.…”

Section: Differential Alteration Characteristic Of the Sandstones Fro...mentioning

confidence: 99%

High temperature susceptibility measurements: A potential tool for the identification of oil-water transition zone in petroleum reservoirs

2022

Self Cite

View full text Add to dashboard Cite

Determining the position and thickness of the oil-water transition zone (OWTZ) in hydrocarbon reservoirs is important to reserve estimation and production planning. This paper describes a magnetic method of identifying this zone. High temperature susceptibility (HT-χ) measurements on core samples from Paleogene reservoirs of the UK Central North Sea revealed distinct signatures around the oil water interface. Rapid increases in susceptibilities at temperatures <250°C were observed for samples around the oil water interface unlike the main oil leg where alteration involving increase in susceptibility occurred at significantly slower rates and higher temperatures. The HT-χ data together with Mössbauer measurements revealed that the variation in alteration characteristics is due to the increasing concentration of hexagonal pyrrhotite and/or lepidocrocite around the oil water interface. Hexagonal pyrrhotite was identified in reservoirs existing at temperatures of <80°C, while lepidocrocite dominated the signature around the contact of deeper reservoirs. These observations suggest that the precipitation of hexagonal pyrrhotite is related to OWTZ centred biogenic activities i.e., biodegradation. The dominance of lepidocrocite in deeper diagenetic settings has been related to hydrolysis of hydrocarbon at the oil water interface, together with cessation of biogenic activities.

show abstract

Unravelling the history of a complex hydrocarbon play through petroleum systems modelling – Catcher area development (CAD), UK Central North Sea region

Abdulkarim,

Fraser,

Neumaier

et al. 2024

Marine and Petroleum Geology

View full text Add to dashboard Cite

Siderite occurrence in petroleum systems and its potential as a hydrocarbon-migration proxy: A case study of the Catcher Area Development and the Bittern area, UK North Sea

Cited by 9 publications

References 47 publications

Effect of Hydrocarbon Presence and Properties on the Magnetic Signature of the Reservoir Sediments of the Catcher Area Development Region, UK North Sea

Effect of Hydrocarbon Presence and Properties on the Magnetic Signature of the Reservoir Sediments of the Catcher Area Development Region, UK North Sea

High temperature susceptibility measurements: A potential tool for the identification of oil-water transition zone in petroleum reservoirs

Unravelling the history of a complex hydrocarbon play through petroleum systems modelling – Catcher area development (CAD), UK Central North Sea region

Contact Info

Product

Resources

About