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1-20 of 62
Keywords: Neutron log
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Proceedings Papers
Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-I
... the viscosity of the oil and allow it to flow. In steamflood operations, monitoring the steam's distribution and behavior is necessary for effective steam management and identification of bypassed oil. Cased-hole neutron logs are critical to this surveillance and are acquired throughout the life...
Proceedings Papers
Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-EEEE
... neutron logs (sigma mode and inelastic capture mode). Both logs were run before and after fracture stimulation operations, so a like for like comparison could be made to reduce uncertainties associated with comparing logs from different service companies. A third quality control check was performed...
Proceedings Papers
Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-OOOO
... of each scenario illustrate the use and integration of Carbon-Oxygen and Multi-Detector Pulsed Neutron attributes to identify bypassed oil. waterflooding water saturation log analysis Prudhoe Bay well logging Sorw spwla 56 application saturation oil column Prudhoe Bay Field Neutron log...
Proceedings Papers
John Rasmus, Olabode Ijasan, Chris Morriss, Roger Griffiths, Darwin Ellis, Joseph M. Chiaramonte, Charles R. Case, Carlos Torres-Verdín
Paper presented at the SPWLA 54th Annual Logging Symposium, June 22–26, 2013
Paper Number: SPWLA-2013-K
... Thickness neutron Schlumberger horizontal well log analysis porous layer layer thickness well inclination increase Neutron log interpretation true layer porosity University SPWLA 54 th Annual Logging Symposium, June 22-26, 2013 1 Is Porosity Anisotropy Real and Will it Affect My Petrophysical...
Proceedings Papers
Antonio Cosme Del Rey, Alvaro Marcello Marco Peres, Abelardo Borges Barreto, Jr., Sergio Ribeiro de Almeida, Cristiano Leite Sombra
Paper presented at the SPWLA 50th Annual Logging Symposium, June 21–24, 2009
Paper Number: SPWLA-2009-64051
... study was presented by Del Rey et all. (2007). flow in porous media permeability value variation Neutron log estimation Fluid Dynamics heterogeneity porosity density log resistivity direct permeability estimation correlation right track spwla 50 reservoir reservoir rock Upstream...
Proceedings Papers
Paper presented at the SPWLA 49th Annual Logging Symposium, May 25–28, 2008
Paper Number: SPWLA-2008-S
... Abstract Compensated neutron logs have been around for many years, and have been used successfully for many petrophysical applications. Although the basic design and general response characteristics of these instruments have remained relatively constant over the years, service companies have...
Proceedings Papers
Paper presented at the SPWLA 47th Annual Logging Symposium, June 4–7, 2006
Paper Number: SPWLA-2006-JJJ
... concentration log matrix density dolomite Upstream Oil & Gas accuracy neutron well logging concentration anhydrite evaluation Symposium epithermal neutron log mineralogy calcite spwla 47 carbonate spectroscopy Herron epithermal neutron porosity Neutron log interpretation SPWLA 47th...
Proceedings Papers
Paper presented at the SPWLA 44th Annual Logging Symposium, June 22–25, 2003
Paper Number: SPWLA-2003-L
... format. From that point on, the data can be evaluated using standard Western techniques. The key is the ability to replicate a Western compensated neutron log from either the single detector or two-detector Russian cased-hole neutron logs. From the neutron log and the SP, a neural net can replicate...
Proceedings Papers
Paper presented at the SPWLA 40th Annual Logging Symposium, May 30–June 3, 1999
Paper Number: SPWLA-1999-EE
... the NMR as a replacement for the density and neutron logs in reservoirs where mud solid invasion may occur. This near wellbore effect is almost entirely within the depth of investigation of the NMR tool. Evidence will also be presented that in reservoirs where mud solids invade the formation, the density...
Proceedings Papers
Paper presented at the SPWLA 40th Annual Logging Symposium, May 30–June 3, 1999
Paper Number: SPWLA-1999-GGG
... less than or equal to porosity readings from conventional logs, especially the neutron log. We concluded that the neutron log is a good total porosity device in this reservoir. The difference between neutron porosity and filtered pixel-count vuggy porosity represents the intercrystalline, or "matrix...
Proceedings Papers
Paper presented at the SPWLA 35th Annual Logging Symposium, June 19–22, 1994
Paper Number: SPWLA-1994-EEE
... to the thermal neutron log, the accelerator based epithermal log is significantly easier to use in a shaly sand interpretation due to its direct dependence on the hydrogen index. The terms clay and shale have long been used inter- changeably by many log analysts and have acquired ambiguous definitions...
Proceedings Papers
Paper presented at the SPWLA 35th Annual Logging Symposium, June 19–22, 1994
Paper Number: SPWLA-1994-E
... curve, then make up a four-point porosity log quality control procedure. Applying this rock-based CC method to a large number of wells then allows one to make the following general observations: Reliability among the sonic, density and neutron logs is in the order listed. The neutron log can...
Proceedings Papers
Paper presented at the SPWLA 34th Annual Logging Symposium, June 13–16, 1993
Paper Number: SPWLA-1993-XX
... change sensitivity log analysis calculation normalization Simulation water saturation neutron porosity well 2 gas saturation oil saturation fluid saturation change equation porosity Symposium spwla 34th Upstream Oil & Gas well 1 composition Neutron log saturation theoretical...
Proceedings Papers
Paper presented at the SPWLA 34th Annual Logging Symposium, June 13–16, 1993
Paper Number: SPWLA-1993-CCC
...SPWLA 34th Annual Logging Symposium, June 13-16, 1993 EFFECT OF MUDCAKE ON THE COMPENSATED NEUTRON LOG C. W. Tittle Computalog Research, Inc. 7449 Winscott Road Fort Worth, TX 76126 ABSTRACT Diffusion theory calculations of mudcake effect on the porosity determination of the compensated neutron log...
Proceedings Papers
Paper presented at the SPWLA 33rd Annual Logging Symposium, June 14–17, 1992
Paper Number: SPWLA-1992-GG
...-flow, the log identifies one other productive interval. A comparison of flowing and shut-in neutron logs confirms the oil-producing intervals revealed by the capacitance log and identifies additional productive intervals. However, the comparison is complicated by lithology effects. To reduce...
Proceedings Papers
Paper presented at the SPWLA 33rd Annual Logging Symposium, June 14–17, 1992
Paper Number: SPWLA-1992-CC
... vertical resolution processing porosity log analysis resolution level Neutron log interpretation model vertical resolution Symposium Induction log water saturation dipmeter reservoir SPWLA 33rd Annual Logging Symposium, June 14-17, 1992 LAMINATED RESERVOIR EVALUATION USING LOGS WITH DIFFERENT...
Proceedings Papers
Paper presented at the SPWLA 33rd Annual Logging Symposium, June 14–17, 1992
Paper Number: SPWLA-1992-N
... ABSTRACT Examples are given of the calculated effect of invasion on the apparent porosity of thermal and epithermal neutron logs and a gamma-gamma density log. A 3-group 3-dimensional 3-region diffusion theory is used for the calculations. Favorable comparisons are made against experimental...
Proceedings Papers
Paper presented at the SPWLA 32nd Annual Logging Symposium, June 16–19, 1991
Paper Number: SPWLA-1991-PP
... were drilled to an approximate depth of 5,206 feet and cased with fiberglass casing. Open-hole logs were run to establish a baseline for comparison to cased-hole logs. The open-hole logging program consisted of a liihodensity log, a dual porosity neutron log and a phasor induction log. Drill-stem tests...
Proceedings Papers
Paper presented at the SPWLA 31st Annual Logging Symposium, June 24–27, 1990
Paper Number: SPWLA-1990-HH
... and ReEtionships between the B arameters for optimum resolution is s R erformonce are established. In the case of enhanced ensity logs, awn to be a function of mudcoke f roperties, whilst far compensoled neutron logs, resolution is improved using a simp e olternotrve procedure. INTRODUCTION The desirability...
Proceedings Papers
Paper presented at the SPWLA 31st Annual Logging Symposium, June 24–27, 1990
Paper Number: SPWLA-1990-MM
... zone and uninvaded zone, can be evaluated. Analytical approaches were developed that are extensions of conventional log analysis methodologies. The analysis methodology requires as a minimum a common modern logging suite of a density log, a neutron log and an appropriate resistivity logging suite...
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