Reservoir impact of small-scale aeolian dune architecture

from acquisition to simulation in the Wahiba Sands, Oman

Dominic Tatum, Roza Nursaidova, Caroline Hern, Anthony Robin Westerman, Jan Francke, Andrew Richard Gardiner

    Research output: Contribution to conferencePaper

    Abstract

    Small-scale dune heterogeneity has a significant impact upon recoverable reserves within aeolian hydrocarbon reservoirs. Complex geometries exist, with bounding surfaces and primary strata types often negatively impacting fluid flow. Incorporating the effects of such architectural elements into reservoir models is essential when accurately determining their effect on development strategies. In order to assess their impact, we acquired a small pseudo-3D dataset from the Wahiba Sands, Sultanate of Oman, using ground-penetrating radar (GPR). In this paper we discuss the acquisition, processing and modelling of this dataset. Data are interpreted to be of a small linear dune. Radar stratigraphic units have been interpreted and mapped in 3D; a small-scale analogue reservoir model has been produced. Simulation studies have been conducted to assess the impact of a range of sensitivities, including the affects of permeability contrast, flow direction and capillary pressure. Results indicate that permeability contrasts have a significant impact on recovery, whilst flow direction is the dominant factor. The resulting models may not be directly transferable to a specific subsurface scenario, but the generic spatial information can be a useful guide.
    Original languageEnglish
    Pages1-5
    Number of pages5
    Publication statusPublished - Jun 2012
    EventSPE Europec/74th EAGE Conference and Exhibition - Copenhagen, Denmark
    Duration: 4 Jun 20127 Jun 2012

    Conference

    ConferenceSPE Europec/74th EAGE Conference and Exhibition
    CountryDenmark
    CityCopenhagen
    Period4/06/127/06/12

    Fingerprint

    dune
    sand
    permeability
    simulation
    hydrocarbon reservoir
    capillary pressure
    ground penetrating radar
    development strategy
    fluid flow
    radar
    geometry
    modeling
    effect

    Cite this

    Tatum, D., Nursaidova, R., Hern, C., Westerman, A. R., Francke, J., & Gardiner, A. R. (2012). Reservoir impact of small-scale aeolian dune architecture: from acquisition to simulation in the Wahiba Sands, Oman. 1-5. Paper presented at SPE Europec/74th EAGE Conference and Exhibition, Copenhagen, Denmark.
    Tatum, Dominic ; Nursaidova, Roza ; Hern, Caroline ; Westerman, Anthony Robin ; Francke, Jan ; Gardiner, Andrew Richard. / Reservoir impact of small-scale aeolian dune architecture : from acquisition to simulation in the Wahiba Sands, Oman. Paper presented at SPE Europec/74th EAGE Conference and Exhibition, Copenhagen, Denmark.5 p.
    @conference{cee1b45dd32e4c4d95b8300bddd033c3,
    title = "Reservoir impact of small-scale aeolian dune architecture: from acquisition to simulation in the Wahiba Sands, Oman",
    abstract = "Small-scale dune heterogeneity has a significant impact upon recoverable reserves within aeolian hydrocarbon reservoirs. Complex geometries exist, with bounding surfaces and primary strata types often negatively impacting fluid flow. Incorporating the effects of such architectural elements into reservoir models is essential when accurately determining their effect on development strategies. In order to assess their impact, we acquired a small pseudo-3D dataset from the Wahiba Sands, Sultanate of Oman, using ground-penetrating radar (GPR). In this paper we discuss the acquisition, processing and modelling of this dataset. Data are interpreted to be of a small linear dune. Radar stratigraphic units have been interpreted and mapped in 3D; a small-scale analogue reservoir model has been produced. Simulation studies have been conducted to assess the impact of a range of sensitivities, including the affects of permeability contrast, flow direction and capillary pressure. Results indicate that permeability contrasts have a significant impact on recovery, whilst flow direction is the dominant factor. The resulting models may not be directly transferable to a specific subsurface scenario, but the generic spatial information can be a useful guide.",
    author = "Dominic Tatum and Roza Nursaidova and Caroline Hern and Westerman, {Anthony Robin} and Jan Francke and Gardiner, {Andrew Richard}",
    year = "2012",
    month = "6",
    language = "English",
    pages = "1--5",
    note = "SPE Europec/74th EAGE Conference and Exhibition ; Conference date: 04-06-2012 Through 07-06-2012",

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    Tatum, D, Nursaidova, R, Hern, C, Westerman, AR, Francke, J & Gardiner, AR 2012, 'Reservoir impact of small-scale aeolian dune architecture: from acquisition to simulation in the Wahiba Sands, Oman' Paper presented at SPE Europec/74th EAGE Conference and Exhibition, Copenhagen, Denmark, 4/06/12 - 7/06/12, pp. 1-5.

    Reservoir impact of small-scale aeolian dune architecture : from acquisition to simulation in the Wahiba Sands, Oman. / Tatum, Dominic; Nursaidova, Roza; Hern, Caroline; Westerman, Anthony Robin; Francke, Jan; Gardiner, Andrew Richard.

    2012. 1-5 Paper presented at SPE Europec/74th EAGE Conference and Exhibition, Copenhagen, Denmark.

    Research output: Contribution to conferencePaper

    TY - CONF

    T1 - Reservoir impact of small-scale aeolian dune architecture

    T2 - from acquisition to simulation in the Wahiba Sands, Oman

    AU - Tatum, Dominic

    AU - Nursaidova, Roza

    AU - Hern, Caroline

    AU - Westerman, Anthony Robin

    AU - Francke, Jan

    AU - Gardiner, Andrew Richard

    PY - 2012/6

    Y1 - 2012/6

    N2 - Small-scale dune heterogeneity has a significant impact upon recoverable reserves within aeolian hydrocarbon reservoirs. Complex geometries exist, with bounding surfaces and primary strata types often negatively impacting fluid flow. Incorporating the effects of such architectural elements into reservoir models is essential when accurately determining their effect on development strategies. In order to assess their impact, we acquired a small pseudo-3D dataset from the Wahiba Sands, Sultanate of Oman, using ground-penetrating radar (GPR). In this paper we discuss the acquisition, processing and modelling of this dataset. Data are interpreted to be of a small linear dune. Radar stratigraphic units have been interpreted and mapped in 3D; a small-scale analogue reservoir model has been produced. Simulation studies have been conducted to assess the impact of a range of sensitivities, including the affects of permeability contrast, flow direction and capillary pressure. Results indicate that permeability contrasts have a significant impact on recovery, whilst flow direction is the dominant factor. The resulting models may not be directly transferable to a specific subsurface scenario, but the generic spatial information can be a useful guide.

    AB - Small-scale dune heterogeneity has a significant impact upon recoverable reserves within aeolian hydrocarbon reservoirs. Complex geometries exist, with bounding surfaces and primary strata types often negatively impacting fluid flow. Incorporating the effects of such architectural elements into reservoir models is essential when accurately determining their effect on development strategies. In order to assess their impact, we acquired a small pseudo-3D dataset from the Wahiba Sands, Sultanate of Oman, using ground-penetrating radar (GPR). In this paper we discuss the acquisition, processing and modelling of this dataset. Data are interpreted to be of a small linear dune. Radar stratigraphic units have been interpreted and mapped in 3D; a small-scale analogue reservoir model has been produced. Simulation studies have been conducted to assess the impact of a range of sensitivities, including the affects of permeability contrast, flow direction and capillary pressure. Results indicate that permeability contrasts have a significant impact on recovery, whilst flow direction is the dominant factor. The resulting models may not be directly transferable to a specific subsurface scenario, but the generic spatial information can be a useful guide.

    M3 - Paper

    SP - 1

    EP - 5

    ER -

    Tatum D, Nursaidova R, Hern C, Westerman AR, Francke J, Gardiner AR. Reservoir impact of small-scale aeolian dune architecture: from acquisition to simulation in the Wahiba Sands, Oman. 2012. Paper presented at SPE Europec/74th EAGE Conference and Exhibition, Copenhagen, Denmark.