Distribution of Diagenetic Alterations in Fluvial, Deltaic, and Shallow Marine Sandstones Within a Sequence Stratigraphic Framework: Evidence from the Mullaghmore Formation (Carboniferous), NW Ireland

Ketzer, João Marcelo Medina; Morad, S.; Evans, R.; Al‐Aasm, Ihsan S.

doi:10.1306/042202720760

Cited by 100 publications

(61 citation statements)

References 33 publications

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“…LST of Sq1 contains limestones, marlstones and dolomitic limestones deposited in the bottom of Fei 1.Locally, thin layers of dolomites may distribute in the top of Fei 1below a transgressive surface (TS). The transgressive surface marks the end of LST and beginning of TST [12] . TST of Sq1 is located in the top of Fei containing abundant dolomites, platform-margin oolitic dolomites, oolit-ic limestones and dolomites with pinpoint pores.…”

Section: Fig 1 Sedimentary Facies and Sequence Stratigraphy Of T5 Wementioning

confidence: 99%

Effect of Diagenesis on Reservoir Distribution in a Sequence Strati-graphic Framework: Evidence from the Feixianguan Formation (Triassic) in Tieshan District of Northeastern Sichuan, China

Huang¹,

Mingguang²,

Hu³

2016

Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering

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Abstract. By integrating diagenesis and sequence stratigraphy, the effect of sedimentary-diagenetic reformation on reservoir quality and distribution was investigated with in a sequence stratigraphic framework. Based on the petrological characteristics, sedimentary microfacies and logs analysis, 2 third-order sequences and 5 system tracts are distinguished in the Feixianguan Formation, as well as a stratigraphic framework has been established. Besides, the diagenetic processes of Feixianguan Formation contain compaction, pressure-solution, cementation, dolomitization and dissolution. A analysis reveals that cementation is the major cause of porosity-loss for primary and secondary porosity. Contrary to the adverse impact of cementation on reservoir space, polygenetic dolomitization and dissolution greatly improve the carbonate rocks reservoir and permeability. Sequence stratigraphic framework constrains the distribution of diagenesis, which result that dolomitization is most evident in transgressive system tract (TST) and below maximum flooding surfaces (MFS) in Sq1, and locally occur in lower part of the highstand system tract (HST). And it is also proved that the dolomitic reservoir shows high porosity in TST of Sq1 and moderate quality in HST of Sq1.

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Section: Fig 1 Sedimentary Facies and Sequence Stratigraphy Of T5 Wementioning

confidence: 99%

Effect of Diagenesis on Reservoir Distribution in a Sequence Strati-graphic Framework: Evidence from the Feixianguan Formation (Triassic) in Tieshan District of Northeastern Sichuan, China

Huang¹,

Mingguang²,

Hu³

2016

Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering

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“…sandstones, the upper Ninuluk contains detrital and authigenic calcite (Collins, 1958;Fox et al, 1979), a possible sign of its transgressive shoreface origin. Calcareous cement can be associated with marine flooding surfaces and transgressive events at the top of highstand systems tracts (Taylor et al, 1995;Ketzer et al, 2002 …”

Section: The Ninuluk: Back-stepping Deltamentioning

confidence: 99%

Producing Light Oil from a Frozen Reservoir: Reservoir and Fluid Characterization of Umiat Field, National Petroleum Reserve, Alaska

Hanks¹

2012

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“…Predictive diagenetic clay-mineral distribution in siliciclastic rocks... detrital composition and pore water chemistry often occur at sequence stratigraphic surfaces (Morad et al, 2000;Ketzer et al, 2002Ketzer et al, , 2003a. Thus, knowledge of sequence stratigraphy and sequence stratigraphic surfaces in particular can provide useful information on parameters controlling near-surface diagenesis.…”

Section: Ahmed Khidir and Octavian Catuneanumentioning

confidence: 99%

“…Thus, knowledge of sequence stratigraphy and sequence stratigraphic surfaces in particular can provide useful information on parameters controlling near-surface diagenesis. Integrating sequence stratigraphy and diagenesis can help improve the prediction of the distribution of diagenetic minerals in sandstones and, hence, the evolution of reservoir quality (Morad et al, 2000;Ketzer et al, 2002Ketzer et al, , 2003b. Authigenic clay minerals such as kaolinite, dickite, smectite, and non-clay minerals such as quartz overgrowths and calcite cement in sandstones are studied in the present contribution.…”

Section: Ahmed Khidir and Octavian Catuneanumentioning

confidence: 99%

Predictive diagenetic clay-mineral distribution in siliciclastic rocks as a tool for identifying sequence boundaries in non-marine successions: the Coalspur Formation, west-central Alberta

Khidir¹,

Catuneanu²

2009

Geologos

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The study of upper Cretaceous -lower Tertiary fluvial deposits of the Coalspur Formation in the Foothills region of west-central Alberta reveals that the distribution of early authigenic kaolinite has a well-defined relation to the sequence stratigraphic framework. In this context, it has been observed that the kaolin mineral content increases in sandstones lying below subaerial unconformities, which mark the most significant stratigraphic hiatuses and hence the sequence boundaries in fully fluvial successions. The increased abundance of authigenic kaolinite immediately below sequence boundaries may have been caused by the infiltration of meteoric water during times of subaerial erosion, resulting in the dissolution of unstable minerals (e.g., micas and feldspar) and the formation of kaolinite and secondary porosity. It is therefore suggested that the change in clay mineral assemblages in the stratigraphic section depends in part on the position of the analyzed sandstone samples relative to the sequence boundaries. In a larger context, the method of using authigenic clays to delineate depositional sequences in non-marine successions needs to be evaluated on a caseby-case basis, as the diagnostic early diagenetic minerals underlying the sequence boundary may change as a function of palaeoclimate and also as a function of late diagenetic processes.

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Distribution of Diagenetic Alterations in Fluvial, Deltaic, and Shallow Marine Sandstones Within a Sequence Stratigraphic Framework: Evidence from the Mullaghmore Formation (Carboniferous), NW Ireland

Cited by 100 publications

References 33 publications

Effect of Diagenesis on Reservoir Distribution in a Sequence Strati-graphic Framework: Evidence from the Feixianguan Formation (Triassic) in Tieshan District of Northeastern Sichuan, China

Effect of Diagenesis on Reservoir Distribution in a Sequence Strati-graphic Framework: Evidence from the Feixianguan Formation (Triassic) in Tieshan District of Northeastern Sichuan, China

Producing Light Oil from a Frozen Reservoir: Reservoir and Fluid Characterization of Umiat Field, National Petroleum Reserve, Alaska

Predictive diagenetic clay-mineral distribution in siliciclastic rocks as a tool for identifying sequence boundaries in non-marine successions: the Coalspur Formation, west-central Alberta

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