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  • Sequences during low-amplitude, high-frequency cycles
    ...es]]) change because of little or no polar ice, and they tend to have high frequency and low amplitude. Read<ref name=ch09r49 /> lists the general characteristi * [[Sequences during moderate-amplitude, high-frequency cycles]]
    5 KB (708 words) - 21:00, 6 April 2022
  • Sequences during moderate-amplitude, high-frequency cycles
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during high-amplitude, high-frequency cycles]]
    5 KB (674 words) - 21:22, 6 April 2022
  • Sequences during high-amplitude, high-frequency cycles
    High-amplitude (60 to over [[length::100 m]]), high-frequency (fourth- and fifth-order; see [[Hierarchy of sequences]]) sea level fluctua ...of carbonate lithofacies sequences that formed during high-amplitude, high-frequency sea level fluctuations; (2) a corresponding sea level curve related to diag
    6 KB (761 words) - 13:47, 7 April 2022

Page text matches

  • Predicting carbonate porosity and permeability
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during moderate-amplitude, high-frequency cycles]]
    2 KB (251 words) - 18:32, 6 April 2022
  • Kinetics
    ...re individually stimulated (i.e., each subcomponent has a different set of frequency factors and distribution of activation energies). These subcomponents can b
    1 KB (203 words) - 19:52, 25 June 2015
  • Synthetic seismograms: correlation to other data
    ...and user parameters [[Wikipedia:Waveform|waveform]], [[Wikipedia:Frequency|frequency]], [[Wikipedia: Phase (waves)|phase]], then manually aligning the simulated ...ency short wavelength), while [[seismic data]] are typically 10–90 Hz (low frequency, long wavelength). This means the sonic log is influenced by a tiny volume
    3 KB (486 words) - 19:10, 27 January 2022
  • Sea level cycles and carbonate diagenesis
    ==High-frequency cycles== ...the diagenetic processes occurring within those zones. Cycle amplitude and frequency determine the thickness and number of times a sequence is subjected to the
    7 KB (960 words) - 21:00, 6 April 2022
  • Carbonate facies
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during moderate-amplitude, high-frequency cycles]]
    3 KB (433 words) - 18:32, 6 April 2022
  • Seismic facies analysis
    ...y:Amplitude amplitude], and [http://wiki.seg.org/wiki/Dictionary:Frequency frequency], within the stratigraphic framework of a depositional sequence. Its purpos ...s added to the convolution models.<ref name=Zeng_2013>Zeng, Hongliu, 2013, Frequency-dependent seismic-stratigraphic and facies interpretation: AAPG Bulletin, v
    6 KB (809 words) - 17:46, 4 February 2022
  • Sequences during high-amplitude, high-frequency cycles
    High-amplitude (60 to over [[length::100 m]]), high-frequency (fourth- and fifth-order; see [[Hierarchy of sequences]]) sea level fluctua ...of carbonate lithofacies sequences that formed during high-amplitude, high-frequency sea level fluctuations; (2) a corresponding sea level curve related to diag
    6 KB (761 words) - 13:47, 7 April 2022
  • Vertical and lateral seismic resolution and attenuation
    ....png|Figure 2]]) needs a broad spectral range (1.5 octaves) including high frequency content, and the phase response should be zero phase. Data quality, the mod ...et. Resolution decreases rapidly with depth because velocity increases and frequency decreases.
    8 KB (1,164 words) - 20:24, 21 January 2022
  • Carbonate porosity formation and preservation
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during moderate-amplitude, high-frequency cycles]]
    5 KB (708 words) - 17:27, 5 December 2023
  • Magnetotellurics survey measurements
    ...the secondary current flow in the earth (E-field), with a modifier for the frequency at which the data were acquired: * f = frequency
    4 KB (519 words) - 19:57, 27 January 2022
  • Seismic attributes
    ...isplaying seismic data#Polarity|polarity]], [[phase]], [[Seismic frequency|frequency]], or [[Seismic velocity|velocity]]. [[Horizon attribute]]s were first used * Frequency in the seismic data
    6 KB (859 words) - 19:42, 27 January 2022
  • Carbonate diagenetic stages
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during moderate-amplitude, high-frequency cycles]]
    6 KB (727 words) - 19:06, 6 April 2022
  • Vibro-sesismic to increasing the production rate of coal bed methane
    ...equency analytically, there is formula to count the exact value of optimum frequency, the formula is : * ω = optimum frequency (Hz)
    11 KB (1,551 words) - 16:49, 11 January 2016
  • Sequences during low-amplitude, high-frequency cycles
    ...es]]) change because of little or no polar ice, and they tend to have high frequency and low amplitude. Read<ref name=ch09r49 /> lists the general characteristi * [[Sequences during moderate-amplitude, high-frequency cycles]]
    5 KB (708 words) - 21:00, 6 April 2022
  • Sea level cycles and climate
    | Dominant frequency (k.y.) || 100 || 50 || 20 * [[Sequences during low-amplitude, high-frequency cycles]]
    7 KB (894 words) - 20:54, 6 April 2022
  • Depositional systems tract
    ...cts|sea level cycle]] into its depositional phases helps us construct high-frequency [[Paleogeography|paleogeographic maps]], one or more for each depositional
    2 KB (215 words) - 15:43, 23 February 2022
  • Predicting carbonate reservoir location and quality
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during moderate-amplitude, high-frequency cycles]]
    7 KB (894 words) - 14:15, 11 April 2022
  • Sequences during moderate-amplitude, high-frequency cycles
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during high-amplitude, high-frequency cycles]]
    5 KB (674 words) - 21:22, 6 April 2022
  • Seismic data display
    ...l]] stratigraphic sequences. A display of a variation in amplitude, phase, frequency, velocity, or any other trace-related attribute can be represented by diffe ...to noise ratio. At display time, one has a final opportunity to choose the frequency band that highlights the seismic target best. This highly subjective decisi
    9 KB (1,404 words) - 21:17, 19 January 2022
  • Sea level cycles and carbonate sequences
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during moderate-amplitude, high-frequency cycles]]
    7 KB (989 words) - 20:45, 6 April 2022
  • Seismic inversion
    ...in the low frequency component from the geological model. The result is a frequency band-limited version of the original sonic logs. This is shown in [[:file:s
    8 KB (1,196 words) - 18:48, 21 January 2022
  • Synthetic seismogram
    ...ncy over the entire survey. Care should be taken to choose a wavelet whose frequency is similar to a key interval of the seismic data to which it will be compar
    8 KB (1,199 words) - 13:57, 24 January 2022
  • Magnetotelluric data acquisition
    ...source<ref name=ch16r3>Goldstein, M. A., and D. W. Strangway, 1975, Audio-frequency magnetotellurics with a grounded electrical dipole source: Geophysics, vol. The predominant low-frequency ( 1.0 Hz) source is equatorial thunderstorm activity.
    5 KB (706 words) - 15:11, 31 January 2022
  • Fracture trap regime
    ...on from these high-permeability fracture swarms to areas of lower fracture frequency or fracture permeability often provides local lateral trap boundaries withi
    7 KB (895 words) - 16:04, 13 April 2022
  • Cross-borehole tomography
    ...aphy measures the velocity of sound at seismic frequencies, usually in the frequency range of 20 Hz to as high as several kilohertz. Sonic logs represent the me * Piezoelectric (pulsed or swept frequency)
    14 KB (2,060 words) - 20:51, 19 January 2022
  • Statistics overview
    ...d by their number. The ''mode'' is the value that occurs with the greatest frequency, and the ''median'' is the value that has as many values above it as below ...of occurrence declines toward extreme values. There are several shapes of frequency distributions that commonly occur in nature. Data sets that are symmetrical
    16 KB (2,483 words) - 19:28, 19 January 2022
  • Electrical methods
    ...thin the rock. The average resistivity can be considered constant over the frequency range of interest to most of the methods under consideration here. In the ''DC method'', a current (usually a very low frequency square wave and not actually direct current) is injected into the earth thr
    15 KB (2,130 words) - 21:19, 19 January 2022
  • Early carbonate diagenesis
    * [[Sequences during low-amplitude, high-frequency cycles]] * [[Sequences during moderate-amplitude, high-frequency cycles]]
    10 KB (1,352 words) - 19:07, 6 April 2022
  • Sequence stratigraphy: hierarchy of sequences
    ! Sequence order || Cycle frequency, m.y. || Thickness, m || Stratigraphic name
    3 KB (380 words) - 22:25, 3 February 2022
  • Depositional sequence identification
    ...f><ref name=ch04r70>Mitchum, R. M., Jr., and J. C. Van Wagoner, 1990, High-frequency sequences and eustatic cycles in the Gulf of Mexico basin: Proceedings, Gul
    3 KB (409 words) - 21:47, 22 February 2022
  • Sea level cycle order
    ...al.<ref name=ch04r70>Mitchum, R., M., Jr., Van Wagoner, J., C., 1990, High-frequency sequences and eustatic cycles in the Gulf of Mexico basin: Proceedings, Gul The seven fourth-order cycles occur at approximately the same frequency as the oxygen isotope warm and cold cycles. The oxygen isotope cycles are i
    7 KB (982 words) - 21:20, 23 February 2022
  • Cross-well electromagnetic tomography monitoring of fluid distribution
    ...n the MHz, can only give information near the borehole. Therefore, a lower frequency system is used due to its high wavelength, which ultimately results in a hi | ω || Frequency || Radians/second || s<sup>-1</sup>
    18 KB (2,715 words) - 18:29, 8 February 2024
  • Magnetotellurics
    | Depth of investigation is a function of both frequency at which the measurement is taken and the average resistivity of the subsur
    3 KB (486 words) - 17:53, 25 January 2022
  • Seismic data acquisition on land
    ...be placed below weathering layer. || Requires expensive shothole drilling. Frequency dependent on material in which explosion occurs. Dangerous to handle. ...mal cultural and environmental impact. Controlled frequency source. Narrow frequency band can increase signal to noise ratio. No shot holes required. || Shallow
    10 KB (1,389 words) - 16:20, 20 January 2022
  • Amplitude (seismic)
    ...f wave are porosity, density, temperature, [[grain size]], gas saturation, frequency, external pressure, pore pressure and stress. The curve between P wave velo ...cpubs/seismic1/data/a165/a165/0001/0300/0301.htm Application of Amplitude, Frequency, and Other Attributes to Stratigraphic and Hydrocarbon Determination], in S
    8 KB (1,291 words) - 15:49, 18 January 2017
  • Seismic processing basics
    ...so as to satisfy the individual tastes of the interpreter. Such things as frequency content, gain, trace spacing, and type of display are all up for grabs (see ...st. Antialias filters remove frequencies above the sampling limit (Nyquist frequency) of the new sampling time. The operation is performed before the sampling i
    19 KB (2,895 words) - 20:23, 21 January 2022
  • Molyneux:sandbox
    * [[Frequency]] This is on the [[Seismic attributes]] page
    5 KB (543 words) - 23:45, 8 January 2015
  • Full waveform acoustic logging
    ...ng tools. The main differences are that (1) the source is usually of lower frequency, centered at 5 to 10 kHz rather than at 20 kHZ; (2) the source-receiver spa ...s, v. 48. p. 1631–1644, DOI: 10.1190/1.1441444.</ref> Because of the lower frequency content, this method is not as accurate as that used with conventional soni
    10 KB (1,530 words) - 20:47, 19 January 2022
  • Marine seismic data acquisition
    ...completely eliminated (notched) by ghosting are the even multiples of the frequency just calculated. The notch frequencies caused by a detector or source at [[
    13 KB (2,015 words) - 18:24, 21 January 2022
  • Techniques for enhancing seismic facies analysis
    ...pinch-outs, and other features is greatly enhanced. Amplitude, phase, and frequency can be mapped aerially in considerable detail, resulting in striking visual
    5 KB (720 words) - 18:51, 4 February 2022
  • Uncertainties impacting reserves, revenue, and costs
    ...spectacular examples are more prone to be cited, regardless of their real frequency in nature. ....''' Location of mode, median, and mean shown schematically on a lognormal frequency distribution.]]
    21 KB (3,123 words) - 19:27, 19 January 2022
  • Quantitative biostratigraphy
    ...events and an indication of their chronostratigraphic reliability. A high frequency of crossovers (mismatches) for a pair of species in the sections under stud
    6 KB (785 words) - 20:58, 31 January 2022
  • Amplitude versus offset (AVO) analysis
    ...[frequency cutoff]]s predetermined by knowledge of the input data's usable frequency range. Trace-dependent deconvolution, such as a [[spiking]] operator, can s
    12 KB (1,723 words) - 18:41, 20 January 2022
  • Definitions of depositional system elements
    ...f><ref name=ch04r70>Mitchum, R. M., Jr., and J. C. Van Wagoner, 1990, High-frequency sequences and eustatic cycles in the Gulf of Mexico basin: Proceedings, Gul
    7 KB (901 words) - 20:45, 22 February 2022
  • Log analysis applications
    ...s_fig3.png|{{figure number|3}}A histogram display of a traces value range. Frequency nodes in a trace's data values (''x''<sub>1</sub>, and ''x''<sub>2</sub>) w * Drop options to remove low frequency data from cell plots.
    21 KB (3,142 words) - 16:20, 20 January 2022
  • Sampling for paleontology
    * Specify frequency of cuttings collection. Commonly a sample is collected every [[length::10 f
    7 KB (1,051 words) - 18:08, 24 January 2022
  • Measurement while drilling
    ...the mud as positive or negative pressure pulses or as a continuous, fixed-frequency pressure wave.
    8 KB (1,083 words) - 21:18, 19 January 2022
  • Sea level cycle phase and systems tracts
    ...l.,<ref name=ch04r70>Mitchum, R., M., Jr., Van Wagoner, J., C., 1990, High-frequency sequences and eustatic cycles in the Gulf of Mexico basin: Proceedings, Gul
    8 KB (1,103 words) - 21:21, 23 February 2022
  • Systems tracts and trap types
    ...t..<ref name=ch04r70>Mitchum, R., M., Jr., Van Wagoner, J., C., 1990, High-frequency sequences and eustatic cycles in the Gulf of Mexico basin: Proceedings, Gul
    9 KB (1,239 words) - 16:58, 24 February 2022
  • FWhitehurst sandbox
    * frequency http://wiki.seg.org/wiki/Dictionary:Frequency
    22 KB (3,024 words) - 21:42, 19 December 2014

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