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  • File:Forward-modeling-of-seismic-data fig2.png
    ...of a migrated section, the expected seismic signatures of reefs containing porosity and tight reefs have been obtained.
    (1,953 × 1,097 (49 KB)) - 14:35, 14 January 2014
  • File:Using-and-improving-surface-models-built-by-computer fig22.png
    ...bon rock thickness is progressively reduced by net to gross ratio, average porosity, and oil saturation, until only the thickness of pores filled with hydrocar
    (938 × 308 (15 KB)) - 22:33, 13 January 2014
  • File:Subsurface-maps fig6.png
    Porosity thickness (ϕH) maps for the B and C zones from the San Andres Formation re
    (1,944 × 1,484 (237 KB)) - 20:42, 14 January 2014
  • File:Forward-modeling-of-seismic-data fig1.png
    ...section of a carbonate reef play. The reef structure on the left contains porosity, while the reef structure on the right is tight.
    (1,946 × 1,028 (96 KB)) - 14:35, 14 January 2014
  • Carbonate diagenetic stages
    ==Stages affect porosity== ...o. 2, p. 207–250. Classic reference for basic concepts regarding carbonate porosity.</ref>
    6 KB (727 words) - 19:06, 6 April 2022
  • File:Porosity fig1.png
    Schematic of a pore system relating mineralogy, water content, and porosity assessment. (Notes: *lf sample is completely disaggregated during measureme
    (1,942 × 983 (76 KB)) - 18:19, 14 January 2014
  • Postaccumulation cementation
    ...a/bulletns/1990-91/data/pg/0075/0007/0000/1145.htm Empirical prediction of porosity and permeability in sandstones]: AAPG Bulletin, vol. 75, p. 1145–1160.</r ...l point]] as the pore volume within the structural closure decreases. If [[porosity]] is lowered sufficiently, the [[accumulation]] may be subeconomic in size.
    3 KB (430 words) - 15:35, 1 February 2022
  • Sandstone diagenesis: composition and texture
    .... The ratio of quartz to [[Ductility|ductile]] grains is key to compaction porosity loss. ==Influence of grain size on porosity and diagenesis==
    5 KB (729 words) - 20:48, 5 April 2022
  • File:Evaluating-fractured-reservoirs fig4.png
    ...ures plotted as a function of fracture width, fracture spacing, and matrix porosity. Copyright: Nelson, 1985</xref>; courtesy of Gulf Publishing Co.
    (1,929 × 1,078 (31 KB)) - 15:00, 14 January 2014
  • Pore system shapes
    ...y'''. In most cases, water saturation (S<sub>w</sub>) of rocks with Archie porosity can be predicted from log analysis using the [[Archie equation]] * Φ = [[porosity]]
    4 KB (528 words) - 13:53, 4 April 2022
  • Reservoir system quality prediction
    ...ermining reservoir system performance.The interrelationship of reservoir [[porosity]], [[permeability]], thickness, and lateral distribution determines reservo ...o. 2, p. 207–250. Classic reference for basic concepts regarding carbonate porosity.</ref> compares variables affecting reservoir system quality for sandstones
    3 KB (425 words) - 17:11, 5 April 2022
  • File:Borehole-gravity fig1.png
    ...log. The sharp difference In density between 6330 and 6370 ft is caused by porosity not detected by the gamma-gamma density log. The broader difference anomaly
    (933 × 1,451 (17 KB)) - 15:41, 14 January 2014
  • File:Log-analysis-applications fig5.png
    ...istivity) and relates water saturation (<italic>S</italic><sub>w</sub>) to porosity and true resistivity.
    (929 × 801 (40 KB)) - 16:36, 14 January 2014
  • File:Core-description fig1.png
    ...sedimentary structures are depicted graphically as accurately as possible. Porosity amounts in percent can be scaled as needed. (Modified from Casey, 1980; Boy
    (1,879 × 2,521 (232 KB)) - 22:38, 13 January 2014
  • Fieldwork risk assessment
    ...itical element. For reservoir rock, the main risk might be thickness and [[porosity]] preservation. For source rock, the main risk might be organic richness an * Reservoir porosity
    2 KB (354 words) - 22:07, 1 February 2022
  • Carbonate porosity formation and preservation
    ...lities than an initially poor-quality rock becoming a good-quality rock. [[Porosity]] can be created late in a rock's life; however, concentrating on the early ...o. 2, p. 207–250. Classic reference for basic concepts regarding carbonate porosity.</ref> Surface and shallow diagenesis mainly occurs in fabric-selective por
    5 KB (708 words) - 17:27, 5 December 2023
  • Archie equation
    * Φ = [[porosity]] ...lution), have clay in their matrix, or have moldic, vuggy, or [[fracture]] porosity require adjustments. The table below lists the five variables and methods f
    5 KB (703 words) - 13:52, 5 April 2022
  • Sandstone diagenetic processes
    ...ore type and geometry of a sandstone and therefore controls its ultimate [[porosity]] and [[permeability]]. Early diagenetic patterns correlate with environmen ...ation destroys pore space; grain leaching creates it. Compaction decreases porosity through grain rearrangement, plastic [[deformation]], pressure solution, an
    7 KB (870 words) - 20:30, 5 April 2022
  • Pickett plot construction
    # Plot points of matching [[porosity]] and true resistivity (R<sub>t</sub> ) on log-log paper. ...ormance_fig9-36.png|thumb|300px|{{figure number|1}}Plot points of matching porosity and true resistivity (R<sub>t</sub>) values obtained from well logs on 2×4
    6 KB (878 words) - 16:16, 5 April 2022
  • Predicting sandstone reservoir porosity
    ...porosity. This section presents different methods of predicting sandstone porosity. Choose the method(s) most appropriate to your situation. ==Porosity-depth plots==
    10 KB (1,384 words) - 15:00, 6 April 2022

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