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Types of logs

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An example of depth shifting of different <b>types</b> of <b>logs</b>
Published: 26 August 2021
Figure 4 An example of depth shifting of different types of logs More
Proceedings Papers

Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-O
... analysis are transformations of data streams, performed by a background digital system. Within this paradigm a general workflow description is proposed that encompasses all types of log analysis, from exploration to tertiary recovery, and from conventional to unconventional reserves. The graphical paradigm...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-103150-MS
... reservoir well logging Propagation Resistivity formation evaluation resistivity log Upstream Oil &amp; Gas bed boundary type tool response resistivity log analysis Simulation phase resistivity borehole effect equation type tool resistivity tool separation Copyright 2006, Society...
Proceedings Papers

Paper presented at the SPWLA 39th Annual Logging Symposium, May 26–28, 1998
Paper Number: SPWLA-1998-XX
... interpretation purposes, however, it is often convenient to have all logs at the same vertical resolution. Array-type induction devices, such as the High-Definition Induction Logging (HDIL) tool, are well suited for providing "resolution-matched" logs. The data measured by short- and long-spaced arrays...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1977
...SS 4.7 Evaluation of pad-type dielectric logging tools eccentered in a borehole Q. Zhou, Chevron Petroleum Technology Company P. W. Reittinger, and D. J. Hilliker, Western Atlas Logging Services SUMMARY Dielectric logging tools use high frequency electromagnetic waves to probe the dielectric...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 1997
Paper Number: SPE-38666-MS
... of the porosity and underestimation of the Archie exponent m in tuffaceous sandstones, and that a method based on the ratio of deep to shallow induction curves from array-type induction logs can be used to estimate fluid content as it is insensitive to those factors. This method was successfully used in more than...
Proceedings Papers

Paper presented at the SPE Unconventional Gas Recovery Symposium, May 16–18, 1982
Paper Number: SPE-10796-MS
... a specific type of argillaceous sediment or rock. P. 67 cec correlation potassium saturation upstream oil &amp; gas evaluation spwla illite clay mineral interpretation porosity montmorillonite reservoir rock kaolinite composition sandstone reservoir porosity well logging clay type...
Proceedings Papers

Paper presented at the SPE Europec featured at 78th EAGE Conference and Exhibition, May 30–June 2, 2016
Paper Number: SPE-180182-MS
... wireline tools conveyed by open hole tractor. We also correlate the petrographic analysis of these bioclastic (ostreiid) grainstones and packstones to the logs responses and rock types. Following the acquisition of LWD resistivity and porosity logs, additional formation evaluation logs – a combined tool...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 3–5, 2008
Paper Number: IPTC-12887-ABSTRACT
... information. However, integrating additional constraints, such as 3D seismic attributes, can significantly improve the accuracy of the reservoir model. This paper shows the results of a well log based reservoir study with 3D seismic data that have been used to assess the petrophysical rock type distribution...
Proceedings Papers

Paper presented at the 2008 SEG Annual Meeting, November 9–14, 2008
Paper Number: SEG-2008-1595
... Summary A well log based reservoir study together with post stack 3D seismic data analysis was used to assess the petrophysical rock type distribution in an area located on the West side of Lake Maracaibo-Venezuela. The calculated petrophysical rock types were obtained using the Windland...
Journal Articles
Petrophysics 47 (01).
Paper Number: SPWLA-2006-v47n1a3
Published: 01 February 2006
... approach that has been developed to predict these new rock types from logs calibrated to core, in order to populate the reservoir model. The rock-type prediction method applied in this study includes the integration of Discriminant Analysis and the Indexed Self Organizing Map (SOM) method. Discriminant...
Proceedings Papers

Paper presented at the SPWLA 46th Annual Logging Symposium, June 26–29, 2005
Paper Number: SPWLA-2005-Z
... logs calibrated to cores, in order to populate the reservoir model. The rock type prediction method applied in this study includes the integration of: Discriminant Analysis, the Indexed Self Organizing Map method and FMI image analysis. Discriminant Analysis provides the optimal log combination...
Proceedings Papers

Paper presented at the SPE Middle East Oil & Gas Show and Conference, March 6–9, 2017
Paper Number: SPE-183845-MS
... Abstract The density-neutron log combination is a common standard for reservoir evaluation, typically used for porosity and lithology estimation. The measurements require the use of radioactive sources that operators are increasingly trying to avoid, particularly in areas where drilling...
Proceedings Papers

Paper presented at the SPWLA 53rd Annual Logging Symposium, June 16–20, 2012
Paper Number: SPWLA-2012-052
...SPWLA-D-11-00052 SPWLA 53rd Annual Logging Symposium, June 16-20, 2012 1 Integration of Advanced Mud Gas Logs, Petrophysical Logs and Formation Testing for Fluid Typing - A Middle East Case Study Shyam Ramaswami, Hani Elshahawi, Daniela Frese, Dennis Naafs, Melton Hows (Shell), Shyam Arora, Rawa...
Proceedings Papers

Paper presented at the SPWLA 38th Annual Logging Symposium, June 15–18, 1997
Paper Number: SPWLA-1997-U
... the individual sets of lab capillary data by rock types, combine rock types when required for calculation constraints and eventually compare the computed water saturations with the by-layer water saturation values derived from open hole log data Rather than group rock types by permeability ranges, porosity...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17212-MS
... machine learning flow in porous media Artificial Intelligence cored well prediction rock type classification iptc 17212 Kuwait Burgan Field international petroleum technology conference core analysis Fluid Dynamics reservoir rock type log domain petrophysical group Reservoir...
Journal Articles
Petrophysics 7 (02).
Paper Number: SPWLA-1966-vVIIn2a2
Published: 01 March 1966
...F.S. Jeffries Uniformity of rock type in the Swan Hills oil pools of Northern Alberta ensures that frequency distribution of acoustic log transit. times have a similar shape from well to well. By selecting a place where the frequency distribution changes shape, it is possible to estimate...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166178-MS
...: uncertainty bounds. Figure 7 Rock classification and bed typing via k -means cluster analysis ( Press et al., 2007 ) on a 3D Thomas-Stieber diagram constructed with gamma ray, bulk density, and resistivity logs. Rock types defined by grain size and bed thickness should be integrated...
Proceedings Papers

Paper presented at the SPWLA 53rd Annual Logging Symposium, June 16–20, 2012
Paper Number: SPWLA-2012-071
... simultaneously honor saturation behavior in the vertical direction and mud-filtrate invasion in the radial direction. Such a condition becomes critical when hydraulic rock typing is performed with well logs acquired in multiple wells penetrating the same or different capillary transition zones. This paper...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-L
... definition is especially important in complex carbonates with multiple pore systems. Several papers, however, restrict pore typing to MICP groups without transferring to log domain necessary for reliable earth modeling. A procedure has been developed to describe the dominant pore types occurring within...

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