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Line 140: − − [[file:flow-units-for-reservoir-characterization_fig2.png|thumb|{{figure number|2}}Some examples of lithofacies and flow unit subdivisions of clastic and carbonate reservoirs. (a) Lithofacies and (b) flow unit subdivision of the Shannon Sandstone body in the Hartzog Draw field, Powder River basin, Wyoming. (Modified from <ref name=pt06r51 />.) (c) Lithofacies and (d) reservoir facies (flow unit) subdivision of the Rainbow Lake reef reservoir (“A” Pool), Alberta, Canada. (Modified from <ref name=Langston_and_Chin_1968 />.)]]
Flow units for reservoir characterization (view source)
Revision as of 17:28, 20 January 2014
, 17:28, 20 January 2014no edit summary
There is no universally applicable set of rules by which to define flow units. Dividing a reservoir into flow units requires an integration of stratigraphic, sedimentological, structural, petrographic, petrophysical, and field performance data. The process is summarized as follows ([[:file:flow-units-for-reservoir-characterization_fig1.png|Figure 1]]):
There is no universally applicable set of rules by which to define flow units. Dividing a reservoir into flow units requires an integration of stratigraphic, sedimentological, structural, petrographic, petrophysical, and field performance data. The process is summarized as follows ([[:file:flow-units-for-reservoir-characterization_fig1.png|Figure 1]]):
[[file:flow-units-for-reservoir-characterization_fig2.png|thumb|{{figure number|2}}Some examples of lithofacies and flow unit subdivisions of clastic and carbonate reservoirs. (a) Lithofacies and (b) flow unit subdivision of the Shannon Sandstone body in the Hartzog Draw field, Powder River basin, Wyoming. (Modified from <ref name=pt06r51 />.) (c) Lithofacies and (d) reservoir facies (flow unit) subdivision of the Rainbow Lake reef reservoir (“A” Pool), Alberta, Canada. (Modified from <ref name=Langston_and_Chin_1968 />.)]]
* Identify the major lithofacies, vertical sequences, and depositional environments from available core. Relate lithofacies, at the whole-core scale, to their mineralogical, textural, and pore level properties and to permeability, [[porosity]], fluid saturations, and capillarity as measured on core plugs. Establish consistent relationships between rock properties and petrophysical properties.
* Identify the major lithofacies, vertical sequences, and depositional environments from available core. Relate lithofacies, at the whole-core scale, to their mineralogical, textural, and pore level properties and to permeability, [[porosity]], fluid saturations, and capillarity as measured on core plugs. Establish consistent relationships between rock properties and petrophysical properties.
==Examples of application of flow units==
==Examples of application of flow units==
Examples of field studies that apply the flow unit concept are listed in Table 1. A larger number of studies have identified and mapped lithofacies control on geometry and petrophysical properties of reservoirs but have not applied a flow unit classification to these subdivisions. Some examples are listed in Table 2 and illustrated in Figure 2. These studies are good examples of the stratigraphic and sedimentological component of the process of flow unit subdivision.
Examples of field studies that apply the flow unit concept are listed in Table 1. A larger number of studies have identified and mapped lithofacies control on geometry and petrophysical properties of reservoirs but have not applied a flow unit classification to these subdivisions. Some examples are listed in Table 2 and illustrated in [[:file:flow-units-for-reservoir-characterization_fig2.png|Figure 2]]. These studies are good examples of the stratigraphic and sedimentological component of the process of flow unit subdivision.
{| class = "wikitable"
{| class = "wikitable"
| <ref name=pt06r43>Guevara, E. H., 1988, Geological characterization of Permian submarine fan reservoirs of the Driver Waterflood Unit, Spraberry Trend, Midland Basin, Texas: The Univ. of Texas Bureau of Economic Geology Report of Investigations, n. 172, 44 pp.</ref><ref name=pt06r143>Tyler, N., Gholston, J. C., 1988, Heterogeneous deep-sea fan reservoirs, Shakelford and Preston waterflood units, Spraberry Trend, West Texas: The Univ. of Texas Bureau of Economic Geology Report of Investigations, n. 171, 38 p.</ref>
| <ref name=pt06r43>Guevara, E. H., 1988, Geological characterization of Permian submarine fan reservoirs of the Driver Waterflood Unit, Spraberry Trend, Midland Basin, Texas: The Univ. of Texas Bureau of Economic Geology Report of Investigations, n. 172, 44 pp.</ref><ref name=pt06r143>Tyler, N., Gholston, J. C., 1988, Heterogeneous deep-sea fan reservoirs, Shakelford and Preston waterflood units, Spraberry Trend, West Texas: The Univ. of Texas Bureau of Economic Geology Report of Investigations, n. 171, 38 p.</ref>
|}
|}
==See also==
==See also==