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• Spontaneous potential logs in water resistivity calculation
  ...nalysis in calculating [[water saturation]] using the [[Archie equation]]. R_w can be measured from a sample of formation water taken from the To calculate R_w from SP, we need the following data:
  6 KB (1,027 words) - 16:40, 5 April 2022
• True resistivity determination
  ...[formation water]] and hydrocarbons (S_w < 100%). Using a valid R_t is fundamental when analyzing well logs for the presence of hyd ==How invasion affects r_t measurement==
  3 KB (427 words) - 16:16, 5 April 2022
• Carbonate classification
  ...: AAPG Bulletin, v. 43, p. 1–38.</ref> and Dunham<ref name=pt05r50>Dunham, R. J., 1962, [http://archives.datapages.com/data/specpubs/carbona2/data/a038/
  1,023 bytes (134 words) - 13:25, 27 March 2015
• Fracture
  ...nics of Rock: London, Academic Press, p. 277–349.</ref><ref>Vincelette, R. R., E. A. Beaumont, and N. H. Foster, 1999, [http://archives.datapages.com/da
  951 bytes (136 words) - 20:39, 10 February 2015
• Pickett plot construction
  ...rvoir in one or many wells. The Pickett plot<ref name=ch09r45>Pickett, G., R., 1973, Pattern recognition as a means of formation evaluation: The Log Ana # Plot points of matching [[porosity]] and true resistivity (R_t ) on log-log paper.
  6 KB (878 words) - 16:16, 5 April 2022
• Formation water density
  ==Procedure: estimating density from r_w== ...le below to estimate formation water density at reservoir conditions using R_w. The approximate error is ±10% (after <ref name=ch05r4 />).
  5 KB (714 words) - 15:19, 13 September 2022
• Accumulation
  ...ols, are traps that contain oil or gas.<ref name=Vincelette>Vincelette, R. R., E. A. Beaumont, N. H. Foster, 2000, [http://archives.datapages.com/data/s
  1 KB (206 words) - 17:37, 27 January 2015
• AAPG Wiki:Converting content
  <nowiki>re.sub("<blockquote>.*Page [0-9]*-*</blockquote>",r"",str)</nowiki> <nowiki>re.sub("<p><strong>(.*)</strong></p>",r"==\1==",str)</nowiki>
  6 KB (826 words) - 18:27, 1 July 2013
• Displacement pressure
  ...lacement pressure'' (''P''_d).<ref>Vavra, C.L., J. G. Kaldi, and R. M. Sneider, [http://archives.datapages.com/data/specpubs/methodo1/data/a09
  557 bytes (82 words) - 14:13, 24 July 2014
• Midale seal capacity and trap type
  ==Significance of r_bt for seal capacity== ...(R_bt) from the [[Weyburn_seal_capacity#Winland.27s_r10|Winland r₁₀]] equation is correct, the Midale marly beds do not have the c
  5 KB (723 words) - 17:02, 12 April 2022
• AAPG Wiki:Test extensions
  :<math>R(\theta ) = R(0) + G \sin^2 \theta + F ( \tan^2 \theta - \sin^2 \theta )\ </math> The time now on the server is {{#time: r|now}} (this should show the current date and time, UTC).
  2 KB (358 words) - 14:35, 24 March 2014
• Intact top seal
  ...8-0</ref> and Vavra et al.<ref name=ch10r87>Vavra, C. L., J. G. Kaldi, and R. M. Sneider, 1992, [http://archives.datapages.com/data/bulletns/1992-93/dat
  3 KB (357 words) - 15:08, 31 March 2022
• Forensic geology
  ...nan Doyle, A., The Complete Sherlock Holmes.</ref><ref name=Murray>Murray, R. C., 2011, [http://www.forensicgeology.net/links.htm Evidence from the Eart
  829 bytes (111 words) - 19:21, 16 April 2015
• Capillary pressure (Pc) curves: pore throat size determination
  ...interfacial tension (γ), the [[wettability]] (Θ), and pore throat radius (r). P_c increases with decreasing pore throat size, increasing inte :<math>\mbox{P}_{\rm c} = \frac{2\gamma \cos \Theta}{\mbox{r}}</math>
  6 KB (898 words) - 16:21, 4 April 2022
• Rock quality
  ...h more effective for determining quality. The K_a/Φ ratio or the r₃₅ method yields information about the fluid flow and storage qua ...luid flow efficiency and storage, as shown by the K_a/Φ ratio or r₃₅, flow unit 2 is actually the better rock.
  10 KB (1,534 words) - 16:53, 4 April 2022
• Archie equation
  ...{S}_{\rm w}{}^{\rm n} = \frac{\mbox{R}_{\rm w}}{(\Phi^{\rm m} \times \mbox{R}_{\rm t})}</math> * R_w = formation water resistivity at formation temperature
  5 KB (703 words) - 13:52, 5 April 2022
• Top seal displacement pressure
  :<math>\mbox{P}_{\rm d} = \frac{(2\gamma \cos \theta)}{\mbox{R}}</math> * R = pore throat radius, cm
  4 KB (530 words) - 15:56, 31 March 2022
• Vitrinite reflectance
  ...It is referred to as %R_o. Results are often presented as a mean R_o value based on all vitrinite particles measured in an individua ...e|vitrinite]] is a [[Kinetics|kinetic]] process. The relationship between %R_o and [[Petroleum generation|hydrocarbon generation]] is dependen
  7 KB (970 words) - 14:28, 10 February 2022
• Displacement pressure estimation from pore size
  :<math>\mbox{P}_{\rm d} = \frac{-2\gamma \cos \theta}{\mbox{r}}</math> ==Techniques for estimating ''r''==
  5 KB (766 words) - 22:55, 2 February 2016
• Sequence stratigraphy analysis
  | author = S. R. Jacobson ...agoner et al.<ref>Van Wagoner, J. C., H. W. Posamentier, R. M. Mitchum, P. R. Vail, J. F. Sarg, T. S. Loutit, and J. Hardenbohl, 1988, An overview of th
  4 KB (612 words) - 17:39, 13 April 2022

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