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- {{#category_index:P|Pennebaker plot}} ...;''t'' versus log''z'', where Δ''t'' is interval transit time and ''z'' is depth. Normal compaction is indicated by a straight line with a slope494 bytes (69 words) - 17:58, 6 March 2018
- {{#category_index:P|phase characteristics}} ...')<sup>2</sup>(0.8–''z'')<sup>2</sup>(1+0.5''z'')<sup>2</sup>(0.5+''z'')<sup>2</sup>. In a more general case roots may be complex.]]3 KB (529 words) - 11:55, 9 March 2018
- {{#category_index:P|pseudosection}} ...lotting magnetotelluric apparent resistivity as a function of frequency (''z''-axis) and traverse distance (''x''-axis).1 KB (187 words) - 17:25, 1 March 2018
- Aki, K. and Richards, P. G., 1980, Quantitative seismology: Theory and methods: W. H. Freeman & Allen, J. L. and Peddy, C. P., 1993, Amplitude variation with offset Gulf Coast case studies: Soc. Expl.40 KB (5,282 words) - 17:45, 23 February 2016
- {{#category_index:Z|''z''-transform}} ...re: <math>x_{t} = [x_{0}, x_{1}, x_{2}, x_{3}...,x_{n}]</math>, then the ''z''-transform of the wavelet is3 KB (507 words) - 11:55, 20 April 2021
- FIG. P-2. ...')<sup>2</sup>(0.8–''z'')<sup>2</sup>(1+0.5''z'')<sup>2</sup>(0.5+''z'')<sup>2</sup>. In a more general case roots may be complex.1 KB (190 words) - 16:32, 12 May 2017
- .... It has a standard suite of petrophysical logs, but we’ll just be using P-wave sonic and bulk density. This vertical well is in the same volume of 3D The P-wave normal incidence reflection coefficient at a sample i is given by6 KB (1,050 words) - 16:35, 16 February 2016
- | author = [[Öz Yilmaz]] A sonic log segment is shown in Figure 2.1-1a. The sonic log is a plot of interval velocity as a function of depth based on downhole measurement u11 KB (1,590 words) - 08:01, 18 September 2014
- | author = [[Öz Yilmaz]] ...yer below the recording surface (not the near-surface layer). When ''t<sub>p</sub>'' = ''t''<sub>0</sub>, equation ({{EquationNote|C-9}}) reduces to the69 KB (11,212 words) - 10:58, 19 September 2014
- ...x.doi.org/10.1109/MCG.2007.323435.</ref><ref name=borkin>Borkin, M. A., K. Z. Gajos, A. Peters, D. Mitsouras, S. Melchionna, F. J. Rybicki, C. L. Feldma ...B array to the 256-×-256-×-3 array that SciKits requires). In line 3, we plot the 256-×-1 lightness (L) array shown in Figure 2b.10 KB (1,562 words) - 16:36, 16 February 2016
- | author = [[Öz Yilmaz]] ''Given an observed data set'' '''d''', ''estimate a set of parameters'' '''p''' ''which are used to construct a model'' '''d′''' ''of the observed dat92 KB (14,896 words) - 17:33, 9 October 2014
- ...rly true when working with data sets where it may not even be clear how to plot the data: 3D direct current resistivity and induced polarization surveys (i ...nd (2) computes their ratio to provide us with impedance data, that is: '''P(u) = d'''.21 KB (3,355 words) - 10:04, 1 August 2017
- [[File:Porepressuredepthvpressure.png|thumbnail|Depth vs. Pressure plot depicting the relationship between various types of pressures]] [[File:Porepressure_depthvmudweight.png|thumbnail|Depth vs. Pressure Gradient plot depicting the relationship between various types of pressures. Black curve9 KB (1,341 words) - 14:10, 4 January 2018
- {{#category_index:Z|''z''-transform}} ...re: <math>x_{t} = [x_{0}, x_{1}, x_{2}, x_{3}...,x_{n}]</math>, then the ''z''-transform of the wavelet is3 KB (479 words) - 11:56, 20 April 2021
- {{#category_index:P|Pennebaker plot}} ...s log''z'', donde Δ''t'' es el tiempo de tránsito de intervalo y ''z'' es la profundidad. La compactación normal se indica mediante una línea429 bytes (66 words) - 17:23, 9 May 2019
- {{#category_index:P|phase characteristics}} ...')<sup>2</sup>(0.8–''z'')<sup>2</sup>(1+0.5''z'')<sup>2</sup>(0.5+''z'')<sup>2</sup>. In a more general case roots may be complex.]]3 KB (519 words) - 08:11, 26 March 2018
- {{#category_index:P|pseudosection}} ...lotting magnetotelluric apparent resistivity as a function of frequency (''z''-axis) and traverse distance (''x''-axis).1 KB (181 words) - 10:19, 28 March 2018
- {{#category_index:P|Pennebaker plot}} ...;''t'' versus log''z'', where Δ''t'' is interval transit time and ''z'' is depth. Normal compaction is indicated by a straight line with a slope434 bytes (63 words) - 10:19, 28 March 2018
- <math>\sigma(z)=\frac{1}{1+e^{-z}}</math> <math>\frac{\partial \sigma {(z)}}{\partial z} = z(1-z)</math>12 KB (1,997 words) - 12:12, 3 August 2018
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...cale to change a plot showing amplitude variation with offset (AVO) into a plot of amplitude variation with angle (AVA)? What will be the effect if velocit7 KB (965 words) - 17:10, 7 November 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...wndip from the well and a geophone is placed at depths of 1000 and 2600 m. Plot the raypaths and calculate the traveltimes for the primary reflection from6 KB (806 words) - 14:24, 28 February 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] Plot <math>\bar{V}</math> and <math>V_{\rm rms}</math> versus depth and versus t9 KB (1,295 words) - 14:37, 28 February 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...of 2.40 km where the refractor velocity is 4.25 km/s, (see Figure 4.21a), plot the traveltime-distance curve.5 KB (749 words) - 14:56, 28 February 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] Velocity analysis usually results in a plot of stacking velocity against traveltime. Bauer (private communication) devi8 KB (1,177 words) - 14:41, 4 March 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...alculation form. Calculate the average velocity and interval velocity, and plot graphs of time, average velocity, and interval velocity versus depth using7 KB (1,041 words) - 14:42, 4 March 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] A velocity analysis at SP 100 of Figure 5.18a yields the <math>V_{s}-t</math> plot shown in Figure 5.18b. Pick stacking velocity versus time pairs and calcula6 KB (737 words) - 14:48, 4 March 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...er|{{figure number|6.9a.}} Directivity of a harmonic source at depth <math>z=c\lambda</math>.]]5 KB (618 words) - 16:18, 8 November 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...ath>B</math>. Then <math>x=Fz_{m}</math>. Next we use the <math>x-t</math> plot to find the corresponding <math>t</math>. Finally, <math>t_{v}</math>, the9 KB (1,411 words) - 14:02, 25 June 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] W_{1}(z)=(2-z)^{2} (3-z)^{2} ;\quad W_{2}(z)=(4-z^{2})(9-z^{2}),6 KB (842 words) - 10:15, 16 July 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...sea surface acts as a notch filter for receivers planted on the sea floor. Plot the notch frequency versus water depth.5 KB (682 words) - 10:16, 16 July 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] Plot cumulative energy as a function of time for wavelets <math>A=[1,\; -2,\; 3]15 KB (2,027 words) - 10:16, 16 July 2019
- | author = [[Lloyd P. Geldart]] and [[Robert E. Sheriff]] ...13a)]. We take <math>V_{1} \approx 1.90</math> km/s (see Figure 11.15a) to plot the direct wave.6 KB (757 words) - 14:36, 30 July 2019
- [[file:Ch07_fig17.png|thumb|{{figure number|17.}} Joint plot of the energy-buildup curves of the three wavelets shown in Figures 14 – &P\left(Z\right)=\frac{A^R\left(Z\right)}{A\left(Z\right)},12 KB (1,774 words) - 15:43, 3 May 2021
- ...elation of each wavelet and the crosscorrelation of each pair of wavelets. Plot the results in a 4 × 4 table, with the autocorrelations on the diagonal an Plot the results. Show that it is necessary to plot only the right halves of the correlation functions.13 KB (1,868 words) - 09:58, 4 May 2021
- ...nk between seismic data and the geology of the substrata. A sonic log is a plot of interval velocity as a function of depth. A strong low-frequency compone ...ultiples is preserved (Treitel et al., 1982)<ref name=ch11r23>Treitel, S., P. R. Gutowski, and D. E. Wagner, 1982, Plane-wave decomposition of seismogra34 KB (5,057 words) - 16:44, 19 May 2021
- ...Deconvolution: SEG Geophysics Reprint Series No. 1.</ref>, equation 5.672, p. 102), determines the spectra of all possible linear combinations of the tr ...equency domain) for two traces is given by Robinson (1954, equation 5.696, p. 104), which for our simple case reduces to10 KB (1,467 words) - 14:02, 6 May 2021
- [[file:Ch07_fig17.png|thumb|{{figure number|17.}} Joint plot of the energy-buildup curves of the three wavelets shown in Figures 14 – &P\left(Z\right)=\frac{A^R\left(Z\right)}{A\left(Z\right)},12 KB (1,650 words) - 15:43, 3 May 2021
- [[file:Ch07_fig17.png|thumb|{{figure number|17.}} Joint plot of the energy-buildup curves of the three wavelets shown in Figures 14 – &P\left(Z\right)=\frac{A^R\left(Z\right)}{A\left(Z\right)},11 KB (1,666 words) - 15:56, 19 May 2021
- ...elation of each wavelet and the crosscorrelation of each pair of wavelets. Plot the results in a 4 × 4 table, with the autocorrelations on the diagonal an Plot the results. Show that it is necessary to plot only the right halves of the correlation functions.13 KB (1,752 words) - 09:58, 4 May 2021
- ...elation of each wavelet and the crosscorrelation of each pair of wavelets. Plot the results in a 4 × 4 table, with the autocorrelations on the diagonal an Plot the results. Show that it is necessary to plot only the right halves of the correlation functions.12 KB (1,766 words) - 16:11, 19 May 2021
- ...nk between seismic data and the geology of the substrata. A sonic log is a plot of interval velocity as a function of depth. A strong low-frequency compone ...ultiples is preserved (Treitel et al., 1982)<ref name=ch11r23>Treitel, S., P. R. Gutowski, and D. E. Wagner, 1982, Plane-wave decomposition of seismogra33 KB (4,907 words) - 16:45, 19 May 2021
- ...nk between seismic data and the geology of the substrata. A sonic log is a plot of interval velocity as a function of depth. A strong low-frequency compone ...ultiples is preserved (Treitel et al., 1982)<ref name=ch11r23>Treitel, S., P. R. Gutowski, and D. E. Wagner, 1982, Plane-wave decomposition of seismogra33 KB (4,920 words) - 16:45, 19 May 2021
- ...Deconvolution: SEG Geophysics Reprint Series No. 1.</ref>, equation 5.672, p. 102), determines the spectra of all possible linear combinations of the tr ...equency domain) for two traces is given by Robinson (1954, equation 5.696, p. 104), which for our simple case reduces to9 KB (1,407 words) - 14:03, 6 May 2021
- ...Deconvolution: SEG Geophysics Reprint Series No. 1.</ref>, equation 5.672, p. 102), determines the spectra of all possible linear combinations of the tr ...equency domain) for two traces is given by Robinson (1954, equation 5.696, p. 104), which for our simple case reduces to9 KB (1,430 words) - 14:04, 6 May 2021