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Keywords: log response
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Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-MMM
..., the typical image log response of these zones shows a mottled appearance with few observable fracture planes, resulting in low computed fracture porosity. Nuclear magnetic resonance (NMR) T 2 measurements provide an alternative method to define fracture porosity in these zones. An NMR logging tool...
Proceedings Papers

Paper presented at the SPWLA 53rd Annual Logging Symposium, June 16–20, 2012
Paper Number: SPWLA-2012-191
... by a phase as it might in other contexts). Fluid substitution modeling was conducted prior to initiation of the project to predict the expected change in logging responses. This modeling work confirmed the low signal contrast and pointed to the need for improved logging precision to obtain the desired...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-E
...-Component Induction Log. The Multi-Laterolog and Array Induction Log responses indicate that the apparent resistivity increases with increasing depth of investigation (DOI). The observed curve separation from different sub-arrays could not be explained by mud invasion or a single drilling-induced fracture...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-OO
... log analysis total porosity log data production data log response water saturation Pierre shale well logging spwla 52 porosity Terry Symposium petrophysical model Upstream Oil & Gas terry formation sandstone saturation value pioneer area correction reservoir resistivity...
Proceedings Papers

Paper presented at the SPWLA 49th Annual Logging Symposium, May 25–28, 2008
Paper Number: SPWLA-2008-FF
... logs consisting of multi-depth resistivity, gamma ray, neutron, density, dipole sonic, NMR, spectroscopy, resistivity imager, pressure/fluid samples, and rotary cores. log analysis log response porosity Upstream Oil & Gas petrophysical model pore plug well logging petrography...
Proceedings Papers

Paper presented at the SPWLA 49th Annual Logging Symposium, May 25–28, 2008
Paper Number: SPWLA-2008-BBBB
... well logging Propagation Resistivity log analysis log response spwla 4849th resistivity data calcite resistivity azimuthal propagation resistivity Troll Field resistivity measurement Upstream Oil & Gas gamma ray spwla spwla 49th interpretation inteq variation OWC Symposium...
Proceedings Papers

Paper presented at the SPWLA 48th Annual Logging Symposium, June 3–6, 2007
Paper Number: SPWLA-2007-GGG
... well logging log response resistivity response curve separation Upstream Oil & Gas spwla 48 log analysis modeling variation sandstone Symposium resistivity borehole inversion hole size true resistivity eccentricity effect resistivity measurement separation resistivity data...
Proceedings Papers

Paper presented at the SPWLA 46th Annual Logging Symposium, June 26–29, 2005
Paper Number: SPWLA-2005-Z
... is integrated together with conventional logs. Ten cored wells from Tengiz Platform and Flank areas were used in the study. After Discriminant Analysis, rock types were predicted from an Indexed Self Organizing Map with 80%+ accuracy. Validation of log responses by iterative comparison using core data...
Proceedings Papers

Paper presented at the SPWLA 45th Annual Logging Symposium, June 6–9, 2004
Paper Number: SPWLA-2004-FF
... with their peculiar log characteristics, very different from tar mat log responses. 4 CONCLUSIONS The tar mat resistivity log responses from field examples presented in this paper are similar to the ones described in previous works, for the common condition of Rmf higher than Rw. Additionally, another tar or bitumen...
Proceedings Papers

Paper presented at the SPWLA 42nd Annual Logging Symposium, June 17–20, 2001
Paper Number: SPWLA-2001-DDD
... impressions were that the reservoir was unexpect- edly thin. A range of forward modeling techniques ranging from one to three dimensional m were used to test various akernative structural explana- tions of the log response observed around the mid- point of the well path through the reservoir, and at its exit...
Proceedings Papers

Paper presented at the SPWLA 41st Annual Logging Symposium, June 4–7, 2000
Paper Number: SPWLA-2000-L
... to enable optimum geosteering decisions. Prior to drilling the horizontal wells, prejob forward modeling based on offset well data and structural information from the earth model is performed to predict the LWD log responses along the planned well trajectory. While drilling, the formation model is refined...
Proceedings Papers

Paper presented at the SPWLA 40th Annual Logging Symposium, May 30–June 3, 1999
Paper Number: SPWLA-1999-U
... on the original fluid contacts, major uncertainty on the net to gross ratio (N/G) in an important part of the field and some unexplained log responses. As part of a larger petroleum engineering study, the above petrophysical issues were tackled successfully. First of all the original fluid contacts...
Proceedings Papers

Paper presented at the SPWLA 36th Annual Logging Symposium, June 26–29, 1995
Paper Number: SPWLA-1995-G
... modeling has become a feasible interpretation option with the potential of substantially increasing reserve estimates. Unfortunately, the modeling of several hundred to several thousand feet of induction log response may seem a daunting task regardless of the speed of computer codes and the convenience...
Proceedings Papers

Paper presented at the SPWLA 33rd Annual Logging Symposium, June 14–17, 1992
Paper Number: SPWLA-1992-GG
... below D is unscrewed from the collar, with the result that there is a 4-foot separation between the top of this joint and the collar. The separation gives the log response its atypical vertical extent and confirms that at 5,216 feet the drilling returns leave the drill pipe-casing annulus and pass...
Proceedings Papers

Paper presented at the SPWLA 28th Annual Logging Symposium, June 29–July 2, 1987
Paper Number: SPWLA-1987-KK
... little interest in, or understanding of, log responses. Usually, however, this type of information is all that is available to the geologist working in the oil and gas industry. A straightfor- ward and practical method of determining sandstone depositional environments from wireline parameters is obvi...
Proceedings Papers

Paper presented at the SPWLA 27th Annual Logging Symposium, June 9–13, 1986
Paper Number: SPWLA-1986-BBB
... with sealed fiberglass casing. The logging and sampling data collected from the monitor well pairs was used to develop a correlation allowing correction of the electric log responses for the presence of in-situ emulsions. In this study, oil saturation calculations were made over the life of the project...

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