An evaluation of deep thin coal seams and water-bearing/resisting layers in the quaternary system using seismic inversion

Xu, Yong; Huang, Weichuan; Chen, Tongjun; Ruo-fei, Cui; Chen, Shizhong

doi:10.1016/s1674-5264(09)60030-2

Cited by 7 publications

(5 citation statements)

References 3 publications

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“…For example, sandstone intrusions (Dixon et al, 1995;Huuse and Mickelson, 2004), high acoustic impedance sedimentary rocks such as coals (Xu et al, 2009;Xu et al, 2010), and diagenetic boundaries such as the opal-ACT transition (Berndt et al, 2004;Zampetti et al, 2005) can all be expressed as high-amplitude reflection anomalies.…”

Section: Dataset and Methodologymentioning

confidence: 99%

Igneous activity in the Bornu Basin, onshore NE Nigeria; implications for opening of the South Atlantic

Suleiman¹,

Magee²,

Jackson³

et al. 2017

JGS

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The structure of igneous plumbing systems in circum-South Atlantic, intra-continental rift basins, e.g., the West and Central African Rift Systems (WCARS), remains enigmatic due to poor subsurface data coverage and quality. How magmatism in these basins related to the opening of the South Atlantic is thus poorly understood. We 14 integrate 2D and 3D seismic reflection data (c. 27600 km 2), data from 23 boreholes, 15 and field observations from the Bornu Basin and Upper Benue Trough, onshore NE 16 Nigeria to examine the timing and development of igneous bodies possibly related to 17 opening of the South Atlantic. We identify numerous sills, which typically have saucer-18 shaped and en-echelon morphologies, and extrusive volcanic cones. The igneous rocks 19 are alkali basalts and dolerites. Seismic-stratigraphic relationships indicate that 20 emplacement occurred in the Early Cretaceous (Albian-to-Cenomanian; ca. 120 Ma), 21 Late Cretaceous (Santonian-to-early Campanian; ca. 83 Ma), and Cenozoic (Miocene; 22 ca. 22 Ma). Magmatism was broadly coeval with major plate boundary interactions, 23 characterized by major azimuthal changes in fracture zones in the developing South 24 Article text Click here to download Article text Adamu Paper Manuscript_CM_II.docx Atlantic Ocean. The broad temporal correlation between intra-continental rift basin 25 magmatism and plate boundary interactions suggests that periods of magma 26 emplacement may have, in some way, been instigated by stress dissipation into intra-27 continental rift basins. 28

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Section: Dataset and Methodologymentioning

confidence: 99%

Igneous activity in the Bornu Basin, onshore NE Nigeria; implications for opening of the South Atlantic

Suleiman¹,

Magee²,

Jackson³

et al. 2017

JGS

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show abstract

“…It acts as a crucial tool for accurately describing the characteristics of a reservoir (e.g. porosity, saturation and lithofacies) (Abdolahi et al, 2022; Ashraf et al, 2022; Avadhani et al, 2006; Mahgoub et al, 2017; Xu et al, 2009). Hence, usage of this attribute, in particular, becomes more reliable for defining the reservoir property than using a set of multiple attributes such as instantaneous phase, frequency, amplitude, energy, variance and bandwidth.…”

Section: Methodsmentioning

confidence: 99%

Appraisal of reservoir porosity using a machine learning approach: A study from the Eocene‐Miocene interval of Upper Assam Basin, NE, India

Kumar,

Sain

2023

Geological Journal

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Porosity estimation is essential for the exploration of hydrocarbons in sedimentary basins, which are affected by several factors such as the burial depth, lithology changes, sedimentary environment and diagenetic degree. Hence, detailed understanding of reservoir porosity is essential for estimating potential economic reserves and developing an explored hydrocarbon field. The present study uses high‐quality three‐dimensional (3D) seismic reflection data to decipher the porous zones within the Eocene‐Oligocene‐Miocene intervals of the Upper Assam Basin. The coherency seismic attribute has brought out several fault‐bounded structures that control the reservoir geometry. Random forest‐based machine learning technique has been utilized for the porosity estimation within the formations of interest. It is observed that the north‐east (NE) parts of the targeted intervals are porous with varying porosity of 0.28–0.42. The Miocene period witnessed a high amount of sedimentation within the basin. Different structural highs and thicknesses are pronounced in the NE part of the study region. Thus, the Miocene intervals are favourable leads for the exploitation of hydrocarbons.

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“…The relationship between velocity and density is found by laboratory observation for the saturated saltwater rock and outdoor statistics. The relation is usually quoted in seismic data digital processing and theoretical research [2][3][4][5].…”

Section: Least Square Fitting Methods For the Velocity And Density Of mentioning

confidence: 99%

Integrative method in lithofacies characteristics and 3D velocity volume of the Permian igneous rocks in H area, Tarim Basin

Yang

Liu

Xie

et al. 2013

International Journal of Mining Science and Technology

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An evaluation of deep thin coal seams and water-bearing/resisting layers in the quaternary system using seismic inversion

Cited by 7 publications

References 3 publications

Igneous activity in the Bornu Basin, onshore NE Nigeria; implications for opening of the South Atlantic

Igneous activity in the Bornu Basin, onshore NE Nigeria; implications for opening of the South Atlantic

Appraisal of reservoir porosity using a machine learning approach: A study from the Eocene‐Miocene interval of Upper Assam Basin, NE, India

Integrative method in lithofacies characteristics and 3D velocity volume of the Permian igneous rocks in H area, Tarim Basin

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