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Keywords: bed thickness
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Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-OOO
... presents numerical modeling of flexural wave propagation for fast and slow formations to show that the ability to resolve the low-frequency asymptote of thin beds is a function of bed thickness and borehole and formation parameters. Specifically shown are the results of applying frequency semblance...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-BB
... Abstract Petrophysical analysis of inverted well logs includes the identification of bed boundaries and associated bed thickness values, for which it is convenient to define one set of boundaries expressed by all measurements. We have previously shown that an independent source of high axial...
Proceedings Papers

Paper presented at the SPWLA 49th Annual Logging Symposium, May 25–28, 2008
Paper Number: SPWLA-2008-IIII
... inspection of the full size core data, nuclear magnetic resonance T2 distributions, electrical borehole images and density logs. Secondly a large scale analysis is done over thousand of feet of log by comparing the statistical distribution of the bed thicknesses obtained from the multi-component induction...
Proceedings Papers

Paper presented at the SPWLA 45th Annual Logging Symposium, June 6–9, 2004
Paper Number: SPWLA-2004-NNN
... ABSTRACT Many oil and gas reservoirs contain significant volumes of recoverable hydrocarbons in intervals where the average bed thickness is below the resolution of conventional logging tools. The presence of thin beds increases the uncertainty in all approaches to hydrocarbon pore thickness...
Proceedings Papers

Paper presented at the SPWLA 43rd Annual Logging Symposium, June 2–5, 2002
Paper Number: SPWLA-2002-HH
... the true distribution of net sand, due to thin-bed and bed boundary effects. Moreover, cut-offs are very sensitive to variability of bed thickness, overall NTG and the nature of bed boundaries. A common tendency in conventional log analysis is to underestimate the proportion of thinly bedded sands...
Proceedings Papers

Paper presented at the SPWLA 37th Annual Logging Symposium, June 16–19, 1996
Paper Number: SPWLA-1996-D
... payquality rock. Detailed care description and ultra-violet photography indicate good to excellent oil staining in sand beds down to about 0.1 ft thick. This bed thickness is common in Lithofacies W. Thin sand beds in lithofacies W generally meet pay cutoff criteria set in the H and F facies and may have...
Proceedings Papers

Paper presented at the SPWLA 30th Annual Logging Symposium, June 11–14, 1989
Paper Number: SPWLA-1989-N
... boundary horizontal well shallow laterolog Upstream Oil & Gas bed thickness dual induction dual laterolog sonde log analysis induction borehole SPWLA Thirtieth resistivity SPWLA Thirtieth Annual Logging Symposium, June 11-14, 1989 ,- INDUCTION, RESISTIVITY AND MWD TOOLS IN HORIZONTAL...
Proceedings Papers

Paper presented at the SPWLA 29th Annual Logging Symposium, June 5–8, 1988
Paper Number: SPWLA-1988-A
... Upstream Oil & Gas log analysis induction shoulder bed effect Thickness real time system bed thickness correction chart bed thickness receiver investigation dual induction well logging attenuation correction chart RPA read rt apparent resistivity Schlumberger resistivity...
Proceedings Papers

Paper presented at the SPWLA 28th Annual Logging Symposium, June 29–July 2, 1987
Paper Number: SPWLA-1987-SS
... Symposium Schlumberger log analysis bed thickness SP log membrane potential resistivity interpretation shaly sand Upstream Oil & Gas SP profile pseudo step profile sp center bed reading interface SPWLAllventy-EighthAnnualLoggingSymposium,June29-July2, 1987 SP DECONVOLUTION...
Proceedings Papers

Paper presented at the SPWLA 24th Annual Logging Symposium, June 27–30, 1983
Paper Number: SPWLA-1983-UU
.... This feature is easily understood by displaying the actual survey and focusing current patterns. log analysis thin bed current pattern Symposium resistivity well logging bed thickness hole diameter dual laterolog Upstream Oil & Gas borehole Computation configuration borehole fluid deep...
Proceedings Papers

Paper presented at the SPWLA 23rd Annual Logging Symposium, July 6–9, 1982
Paper Number: SPWLA-1982-L
.... The sensitivity of tool response to bed thickness is also investigated. well logging cnt-g tool response bed boundary porosity estimate Symposium log analysis detector sensitivity Porosity profile tool response apparent porosity calculation porosity boundary Upstream Oil & Gas bed...
Proceedings Papers

Paper presented at the SPWLA 18th Annual Logging Symposium, June 5–8, 1977
Paper Number: SPWLA-1977-Y
... ABSTRACT The increased numbers of wells both onshore and offshore which must be directionally drilled to reach their intended objective has increased significantly in the past ten years. These directionally drilled wells show bed thickness to be too great, the amount depending upon...
Proceedings Papers

Paper presented at the SPWLA 16th Annual Logging Symposium, June 4–7, 1975
Paper Number: SPWLA-1975-Y
... will tend toward lower water saturation, while adjacent beds with smaller pores will contain higher water saturation. This, in turn, causes a variation in resistivity from bed to bed. As bed thickness approaches or becomes less than the effective bed resolution of a tool, averaging occurs, and the resulting...
Proceedings Papers

Paper presented at the SPWLA 7th Annual Logging Symposium, May 9–11, 1966
Paper Number: SPWLA-1966-R
... and quantitative interpretation of Focus Log data. log analysis Thickness instrument ohmmeter current flow bed thickness borehole side bed correction well logging calculation invasion depth measure electrode apparent resistivity Upstream Oil & Gas invasion equation 7 geometrical factor...
Proceedings Papers

Paper presented at the SPWLA 5th Annual Logging Symposium, May 13–15, 1964
Paper Number: SPWLA-1964-A
... for the investigation were obtained with a resistor network analogue. Upstream Oil & Gas EMF parameter value resistivity apparent resistivity well logging SP amplitude amplitude SSP invasion bed thickness variable parameter determination conventional emf normalized area log analysis Thickness...

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