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• Well log sequence analysis
  ...es in Geology No. 27], p. 2.</ref> outlines a suggested procedure for well log sequence analysis. ...depositional lithofacies on logs using cores and cuttings to calibrate the log.
  6 KB (845 words) - 16:53, 4 February 2022
• Determining water saturation
  ..., G. R., 1973, Pattern recognition as a means of formation evaluation: The Log Analyst, vol. 14, no. 4, p. 3–11.</ref>
  2 KB (244 words) - 13:38, 5 April 2022
• Density-neutron log porosity
  ==Density log== The [[Basic open hole tools#Density|density log]] measures the electron density of a formation. The logging device is a con
  12 KB (1,763 words) - 16:18, 5 April 2022
• Introduction to geological methods
  * [[Conversion of well log data to subsurface stratigraphic and structural information]]
  867 bytes (82 words) - 20:42, 16 July 2014
• Formation evaluation of naturally fractured reservoirs
  ===Sonic amplitude log=== ...s case, the fracture is present but is not detected by the sonic amplitude log.
  9 KB (1,380 words) - 17:25, 18 January 2022
• Synthetic seismogram
  ...red. The synthetic then correlates with both the seismic data and the well log from which it was generated. ...ng|400px|thumb|{{figure number|1}}Synthetic seismogram and associated well log data.]]
  8 KB (1,199 words) - 13:57, 24 January 2022
• Midale water saturation and pore geometry
  ==Log response and S_w== Variations in pore geometry have the expected effect on log responses and [[water saturation]]s (S_w). The Midale vuggy beds
  4 KB (588 words) - 17:01, 12 April 2022
• Core-to-log transformations and porosity-permeability relationships
  | chapter = Core-log transformations and porosity-permeability relationships ==Core-log transformations==
  14 KB (1,893 words) - 20:15, 2 February 2016
• Archie equation
  ...re its time.''</ref> developed his famous equation to calculate, from well log parameters, the [[water saturation]] (S_w) of the uninvaded zone ...general terms; suggested methods are most useful when dealing with modern log suites of good quality.
  5 KB (703 words) - 13:52, 5 April 2022
• Midale lithofacies and distribution
  ==Weyburn well log== ...-system-quality-and-performance_fig9-101.png|{{figure number|3}}example of log characteristics of Midale beds in a Weyburn field well.<ref name=ch09r11>Co
  6 KB (842 words) - 18:50, 4 December 2023
• Formation water density
  ...ight: Gearhart-Owens.<ref name=G-O1972>Gearhart-Owens Industries, 1972, GO Log Interpretation Reference Data Handbook: Fort Worth, Gearhart-Owens Industri #*::: BHT = bottom-hole temperature (found on log header) (°F)
  5 KB (714 words) - 15:19, 13 September 2022
• Depositional sequence identification
  ...|wireline logs]], integrate the biostratigraphic data with correlated well log and [[seismic data]], and select candidate depositional sequences. ...smic profile interpretations, biostratigraphic analyses, and regional well log [[cross section]]s.
  3 KB (409 words) - 21:47, 22 February 2022
• Preprocessing of logging data
  ...zed, all digital log data should be plotted and compared with the original log hard copies. ...><ref name=pt04r7>Neinast, G. S., Knox, C. C., 1973, Normalization of well log data: SPWLA 14th Annual Logging Symposium Transactions Paper I.</ref><ref n
  13 KB (2,094 words) - 17:42, 18 January 2022
• Borehole gravity applications: examples
  ...Michigan: The Log Analyst, September-October, p. 1-10</ref> courtesy ''The Log Analyst''.]] ...a remote higher [[porosity]] zone not detected by the gamma-gamma density log. The broader difference anomaly observed over the length of the interval is
  11 KB (1,596 words) - 18:08, 24 January 2022
• Procedure for geometrical analysis
  ...p://www.merriam-webster.com/dictionary/outcrop outcrop] sections, and well log sections. ...uence boundaries) in seismic sections, outcrop sections, and regional well log sections.
  6 KB (862 words) - 15:20, 4 February 2022
• Borehole gravity tool
  | Gamma-gamma log || 8 || 20 || 17 || 0.5 | Neutron log || 14 || 36 || 40 || 1.1
  5 KB (720 words) - 18:07, 24 January 2022
• Other correlation features
  ...ta taken on a 30-ft (9.1-m) interval show abundance peaks crossing a sharp log break from a thin carbonate to marine shale.]] ...e a common feature of the maximum flooding surface (MFS). Seismic and well log correlations confirm that this break is an MFS overlain by a prograding cla
  6 KB (872 words) - 15:20, 4 February 2022
• Synthetic seismograms: correlation to other data
  ...traveltime]], which is calculated from [[Basic_open_hole_tools#Sonic|sonic log]] measurements. ...typically 10–90 Hz (low frequency, long wavelength). This means the sonic log is influenced by a tiny volume of rock compared to a seismic wave passing t
  3 KB (486 words) - 19:10, 27 January 2022
• Depth and thickness conversion
  | chapter = Conversion of well log data to subsurface stratigraphic and structural information Conversion of log depths to positions with respect to the surface location of a well is the f
  17 KB (2,363 words) - 16:49, 20 January 2022
• Water resistivity determination
  ...ection.<ref name=pt04r3>Dewan, J. T., 1983, Essentials of modern open-hole log interpretation: Tulsa, OK, Penn Well Books.</ref> ...the interpretation of the [[Basic open hole tools#Spontaneous potential|SP log]] is the establishment of “sand” and “shale” lines, as shown in [[:
  13 KB (2,077 words) - 17:26, 18 January 2022

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