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• Seismic data interpretation - recurring themes
  ...seismic, plus [[Seismic array|arrays]], [[offset]], [[dip]], and [[lateral velocity]] variation. The next layer, 3-D seismic, includes all of 2-D plus [[azimut ...smic analysis is, in effect, an edge detection technique. The bigger the [[velocity]] and/or [[density]] contrast between the rocks, the stronger the edge.
  5 KB (739 words) - 18:51, 27 January 2022
• Lwandle plate
  ...d the [[African Plate|Nubian Plate]]. Its discovery is very recent, so the velocity of the plate isn't well known or understood.<ref name=Saria>Saria, E., 2014 ...iors.<ref name=Nocquet&Calais>Nocquet, J.-M., and E. Calais, 2003, Crustal velocity field of western Europe from permanent GPS array solutions, 1996-2001: Geop
  10 KB (1,574 words) - 16:51, 6 April 2016
• Synthetic seismogram
  Velocity data from the sonic log (and the [[density log]], if available) are used to * ''υ'' = rock velocity
  8 KB (1,199 words) - 13:57, 24 January 2022
• Rock physics analysis for reservoir identification
  ...wever, the Vs does not affected much and therefore will produce low Vp/Vs. Velocity ratio is mathematically defined as follow: <p><math>V_p/V_s = \frac{V_p}{V_ ...upper layer, whereas AI2, Vp2, and Rho2 are the acoustic impedance, P-wave velocity, and density of the lower layer. On [[:File:GeoWikiWriteOff2021-Muamamr-Fig
  15 KB (2,356 words) - 18:00, 26 April 2022
• Wellsite math
  | AV || Annular velocity || ft/min | JNV || Jet nozzle velocity || ft/sec
  21 KB (3,142 words) - 15:10, 24 January 2022
• Seismic attributes
  ...arity]], [[phase]], [[Seismic frequency|frequency]], or [[Seismic velocity|velocity]]. [[Horizon attribute]]s were first used in the mid-1980s for interpreting
  6 KB (859 words) - 19:42, 27 January 2022
• Rock-water reaction
  # [[Injection]] or production of fluids at rates exceeding the critical velocity beyond which mobilization of rock fines by mechanical (drag) forces is init ...e conducted at rates below the critical velocity. Conversely, the critical velocity will vary depending on whether fluids are chemically compatible with the ro
  17 KB (2,356 words) - 19:24, 19 January 2022
• Rock-water reaction: formation damage
  * Injection or production of fluids at rates exceeding the critical velocity beyond which mobilization of rock fines by mechanical (drag) forces is init ...e conducted at rates below the critical velocity. Conversely, the critical velocity will vary depending on whether fluids are chemically compatible with the ro
  17 KB (2,380 words) - 18:23, 21 January 2022
• Amplitude variations with offset (AVO)
  ...ons will be the difference of acoustic impedance (product of density and P velocity) over the sum. ...ludes the first P wave velocity, the second node density and the last wave velocity.
  9 KB (1,404 words) - 21:39, 27 March 2019
• Condensate banking effect
  ...number|5}}Condensate saturation versus radial distance from wellbore, with velocity stripping zone.<ref name=Daungkaewandgringarten_2004 /> ...e in gas mobility is observed at higher velocities, and thus is termed the velocity stripping effect, which can increase the productivity of a well. This can f
  21 KB (3,040 words) - 15:22, 12 December 2022
• Magnetotelluric survey case history: volcanic terrain (Columbia River Plateau)
  ...spersive nature of the volcanics and because of the decrease in [[acoustic velocity]] at the base of the volcanics.
  3 KB (359 words) - 15:15, 31 January 2022
• Seismic processing basics
  ...dual statics are all techniques used to estimate and apply the appropriate velocity and time corrections ([[:file:basic-seismic-processing_fig5-part1.jpg|Figur ===f–k or apparent velocity filter===
  19 KB (2,895 words) - 20:23, 21 January 2022
• Open hole tools
  | Sonic || 2 ft || Typically 6 in. || Measure compressional velocity and estimate porosity || Sensitive to compressibility ...timate porosity || Cannot measure shear velocity when shear velocity > mud velocity
  23 KB (3,350 words) - 17:26, 18 January 2022
• Well log analysis for reservoir characterization
  ...lity, etc.) which are more geology-like and rock physics (elasticity, wave velocity, etc.) which are more geophysics-like. Every properties are related each ot ...alculate clay volume, permeability calculation, porosity calculation, wave velocity calculation, etc.
  25 KB (3,679 words) - 21:17, 13 March 2019
• Seismic interpretation
  ...rface. The actual depth to this surface is a function of the thickness and velocity of overlying rock layers. The second is the shape of the reflection, which ...ages is made, including ''p'' wave seismic, shear wave seismic, well data, velocity surveys, and VSP. The data are scanned for quality and suitability. At this
  10 KB (1,520 words) - 18:48, 21 January 2022
• Forward modeling of seismic data
  ...ght is tight. [[Porosity]] is represented in the model by a lower interval velocity and lower density than the surrounding rock (see [[Porosity]]). ...The porosity is identified by the dim spot on traces 6 through 11 and the velocity pulldown of the underlying event. The results from this modeling indicate t
  10 KB (1,513 words) - 21:16, 19 January 2022
• Pressure detection
  ...eases with depth. If the shales have not been able to compact, the seismic velocity will be less. ...rface by the common depth point method of seismic acquisition. If interval velocity increases normally with depth and then decreases, it is possible that a zon
  16 KB (2,450 words) - 21:42, 20 January 2022
• Production logging
  production-logging_fig3.png|{{figure number|3}}Tracer velocity shot technique and injection profile. ...surface recordings are shown to the right of the well sketch. The highest velocity and flow rate are recorded above the perforations, while zero flow is detec
  12 KB (1,726 words) - 16:48, 20 January 2022
• Production problems
  ...ts near the wellbore. Fluid flow within the pores may also reach turbulent velocity, thus generating additional pressure drop and reducing the productivity of ...an also accumulate in the wellbore if the gas is not flowing at sufficient velocity to lift the water from the well. Accumulation of this static fluid column c
  16 KB (2,540 words) - 18:41, 20 January 2022
• Structural lead and prospect delineation
  * Special seismic processing and velocity analysis (e.g., prestack migration; amplitude vs. [[offset]])
  4 KB (511 words) - 18:50, 3 February 2022

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