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- 17:24, 14 January 2014 diff hist +220 N File:Oilfield-water-analysis fig1.png Triangular plot showing relative amounts of cations in typical oil field brines. Relative amount of sodium changes, but calcium is always about five times magnesium. (After Dickey, 1966.) Category:Laboratory methods current
- 17:24, 14 January 2014 diff hist +7,339 N Oilfield water analysis Initial import
- 17:18, 14 January 2014 diff hist +99 N File:Amplitude-versus-offset-avo-analysis fig6.png Comparison of calibrated seismic data and the gas well AVO model. Category:Geophysical methods current
- 17:18, 14 January 2014 diff hist +130 N File:Amplitude-versus-offset-avo-analysis fig5.png Gas well AVO model, involving blocked well logs and calibrated (wavelet-processed) seismic data. Category:Geophysical methods current
- 17:18, 14 January 2014 diff hist +177 N File:Amplitude-versus-offset-avo-analysis fig4.png Calibrated NMO-corrected CDP gathers after relative amplitude processing and application of noise reduction methods designed for single traces. Category:Geophysical methods current
- 17:18, 14 January 2014 diff hist +49 N File:Amplitude-versus-offset-avo-analysis fig3.png Gas sand model. Category:Geophysical methods current
- 17:18, 14 January 2014 diff hist +51 N File:Amplitude-versus-offset-avo-analysis fig2.png Brine sand model. Category:Geophysical methods current
- 17:18, 14 January 2014 diff hist +88 N File:Amplitude-versus-offset-avo-analysis fig1.png Possible combinations of the acoustic and shear terms. Category:Geophysical methods current
- 17:18, 14 January 2014 diff hist +11,504 N Amplitude versus offset (AVO) analysis Initial import
- 17:17, 14 January 2014 diff hist +201 N File:Oil-and-condensate-analysis fig7.png A binary mixing diagram showing how the relative proportions of an unknown oil can be determined using the two end-member oils (separate zones) and laboratory mixtures. Category:Laboratory methods current
- 17:17, 14 January 2014 diff hist +242 N File:Oil-and-condensate-analysis fig6.png Gas chromatographic data can be used to determine oil reservoir continuity in conjunction with other methods such as pressure-depth plots. Diagram on right shows a graphical comparison of chromatographic data. Category:Laboratory methods current
- 17:17, 14 January 2014 diff hist +438 N File:Oil-and-condensate-analysis fig5.png (a) Gas chromatographic data can be displayed as chromatograms at different attenuations, (b) as star diagrams of selected peak height ratios, or (c) as data tables of peak height ratios. The star diagram is a polar plot of the peak height ratio data f... current
- 17:17, 14 January 2014 diff hist +106 N File:Oil-and-condensate-analysis fig4.png Gas chromatogram showing drilling mud contamination to a biodegraded oil. Category:Laboratory methods current
- 17:17, 14 January 2014 diff hist +120 N File:Oil-and-condensate-analysis fig3.png Gas chromatography can be used to determine geological processes experienced by an oil. Category:Laboratory methods current
- 17:17, 14 January 2014 diff hist +195 N File:Oil-and-condensate-analysis fig2.png Gas chromatograms of a “normal” 35° API gravity oil and a biodegraded oil showing the lose of aliphatics (n-paraffins and isoprenoids) due to biodegradation. Category:Laboratory methods current
- 17:17, 14 January 2014 diff hist +128 N File:Oil-and-condensate-analysis fig1.png Flow diagram showing the basic steps followed in oil-oil correlations using gas chromatography. Category:Laboratory methods current
- 17:17, 14 January 2014 diff hist +14,385 N Oil and condensate analysis Initial import
- 17:16, 14 January 2014 diff hist +86 N File:Offshore-rigs fig4.png Dynamic positioning drill ship. (From Whittaker, 1985.) Category:Wellsite methods current
- 17:16, 14 January 2014 diff hist +141 N File:Offshore-rigs fig3.png Semisubmersible rigs, (a) Pontoon type semisubmersible. (b) Twin hull semisubmersible. (From Whittaker, 1985.) Category:Wellsite methods current
- 17:16, 14 January 2014 diff hist +67 N File:Offshore-rigs fig2.png Jackup rigs. (From Whittaker, 1985.) Category:Wellsite methods current
- 17:16, 14 January 2014 diff hist +82 N File:Offshore-rigs fig1.png Fixed production platforms. (From Whittaker, 1985.) Category:Wellsite methods current
- 17:16, 14 January 2014 diff hist +6,075 N Offshore rigs Initial import
- 16:38, 14 January 2014 diff hist +331 N File:Conversion-of-well-log-data-to-subsurface-stratigraphic-and-structural-information fig7.png Conditions under which true stratigraphic thickness calculated according to its equation will be in error. (a) Variation in stratigraphic thickness is large in relation to the downdip deviation of the well path. (b) Change in dip produces an error in e... current
- 16:38, 14 January 2014 diff hist +166 N File:Conversion-of-well-log-data-to-subsurface-stratigraphic-and-structural-information fig6.png Relationship between true dip of a planar surface and apparent dip of that surface in a plane at an angle of ε to the dip direction. Category:Geological methods current
- 16:38, 14 January 2014 diff hist +430 N File:Conversion-of-well-log-data-to-subsurface-stratigraphic-and-structural-information fig5.png Circular approximations of a curved well course showing angles used for the approximations. (a) Radius of curvature method showing chords of horizontal and vertical circles. This method assumes a constant radius of curvature (constant increase or decre... current
- 16:38, 14 January 2014 diff hist +264 N File:Conversion-of-well-log-data-to-subsurface-stratigraphic-and-structural-information fig4.png Linear approximations of a curved well course by the (a) tangential method (Craig and Randall, 1976; Dailey, 1977), (b) angle averaging method (Craig and Randall, 1976), and (c) balanced tangential method (Craig and Randall, 1976). [[Category:Geologic... current
- 16:38, 14 January 2014 diff hist +152 N File:Conversion-of-well-log-data-to-subsurface-stratigraphic-and-structural-information fig3.png Segment of a curved well path showing angular and dimensional relationships between the top and bottom of the interval. Category:Geological methods current
- 16:38, 14 January 2014 diff hist +244 N File:Conversion-of-well-log-data-to-subsurface-stratigraphic-and-structural-information fig2.png Well course of two types of deviated wells. True stratigraphic thickness and true vertical thickness of a dipping stratigraphic unit are shown in relation to the measured interval in a well penetrating the unit. Category:Geological methods current
- 16:37, 14 January 2014 diff hist +244 N File:Conversion-of-well-log-data-to-subsurface-stratigraphic-and-structural-information fig1.png {{copyright|Don Clarke, Dept. of OH Properties, City of Long Beach, CA)}} Surface projection of well course for a nominally vertical well. Copyright: Don Clarke, Dept. of OH Properties, City of Long Beach, CA). Category:Geological methods current
- 16:37, 14 January 2014 diff hist +15,743 N Depth and thickness conversion Initial import
- 16:37, 14 January 2014 diff hist +135 N File:Production-logging fig7.png Pulse-echo cement bond log showing cement top and channel on the cement map presentations. Category:Production engineering methods current
- 16:37, 14 January 2014 diff hist +102 N File:Production-logging fig6.png CBL logs and their response to various cement conditions. Category:Production engineering methods current
- 16:37, 14 January 2014 diff hist +77 N File:Production-logging fig5.png Row profile in a producing well. Category:Production engineering methods current
- 16:37, 14 January 2014 diff hist +131 N File:Production-logging fig4.png Two types of flowmeters, (a) Full bore flowmeter, (b) Diverting basket type flowmeter. Category:Production engineering methods current
- 16:37, 14 January 2014 diff hist +98 N File:Production-logging fig3.png Tracer velocity shot technique and injection profile. Category:Production engineering methods current
- 16:37, 14 January 2014 diff hist +92 N File:Production-logging fig2.png Noise log responses to fluid movement downhole. Category:Production engineering methods current
- 16:37, 14 January 2014 diff hist +116 N File:Production-logging fig1.png Temperature survey showing two gas entries and the geothermal gradient. Category:Production engineering methods current
- 16:37, 14 January 2014 diff hist +11,330 N Production logging Initial import
- 16:37, 14 January 2014 diff hist +118 N File:Preprocessing-of-logging-data fig1.png Determination of true resistivity (<italic>R</italic><sub>t</sub>) from dual induction. Category:Wireline methods current
- 16:37, 14 January 2014 diff hist +13,314 N Preprocessing of logging data Initial import
- 16:37, 14 January 2014 diff hist +126 N File:Quick-look-lithology-from-logs fig2.png Characteristic log signatures for a carbonate and evaporite sequence. Hole conditions are good. Category:Wireline methods current
- 16:37, 14 January 2014 diff hist +426 N File:Quick-look-lithology-from-logs fig1.png Characteristic log shapes for different types of sand bodies set in shale, (a) Funnel shape, coarsening upward. Note that this is the shallowest interval, so the shale is least compacted. (b) Cylinder shape, blocky. Note that the SP log is featureless ... current
- 16:37, 14 January 2014 diff hist +24,768 N Quick-look lithology from logs Initial import
- 16:36, 14 January 2014 diff hist +297 N File:Log-analysis-applications fig7.png A two-well histogram allows users to compare data interactively from one well to another by shifting the second well's data across the base well on the screen. A visual best fit is usually satisfactory for determining the amount of normalization requir... current
- 16:36, 14 January 2014 diff hist +310 N File:Log-analysis-applications fig6.png Dual plot contains crosspiot (featuring data isolator polygon) and traceplot. User interactively draws polygon on the screen, which identifies the enclosed data in the database. Corresponding depths are immediately marked on the traceplot, in this case... current
- 16:36, 14 January 2014 diff hist +455 N File:Log-analysis-applications fig5.png A Pickett plot allow users to interactively draw a line intersecting water wet points (<italic>S</italic><sub>w</sub> = 100%). This line identifies the cementation exponent (<italic>m</italic>) and the product of a × <italic>R</italic><sub><italic>w</... current
- 16:36, 14 January 2014 diff hist +417 N File:Log-analysis-applications fig4.png {{copyright|Schlumberger. Faciolog is a trademark of Schlumberger}} A traceplot displays trace values by their depth of occurrence. Users should carefully plan details of the display to maximize visual impact, legibility, amount of information conveye... current
- 16:36, 14 January 2014 diff hist +503 N File:Log-analysis-applications fig3.png A histogram display of a traces value range. Frequency nodes in a trace's data values (<italic>x</italic><sub>1</sub>, and <italic>x</italic><sub>2</sub>) within a given formation are related to geology. Node values are usually consistent and mappable ... current
- 16:36, 14 January 2014 diff hist +354 N File:Log-analysis-applications fig2.png Interactive spontaneous potential (SP) baseline flattening. The user selects points on the raw SP curve, which represent zero deflection (that is, baseline = 100% shale). By projecting the baseline between two consecutive points, SP deflections are cal... current
- 16:36, 14 January 2014 diff hist +164 N File:Log-analysis-applications fig1.png Interactive depth shifting. The user marks correlating inflection points and shifts off-depth traces to base trace depths. Category:Integrated computer methods current