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Keywords: resistivity anisotropy
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Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-KKKK
... tools having a series of multiple orthogonal (3D) transmitters and receivers, as illustrated in Figure 1. Artificial Intelligence induction borehole log analysis frequency resistivity anisotropy vertical resistivity Upstream Oil & Gas skin effect spwla 59 inversion Symposium dip...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-H
.... The apparent laterolog and induction resistivities show a small difference; the laterolog resistivities read systematically higher. This difference permits a joint in-version for horizontal and vertical resistivity, which quantitatively characterizes the laminated formation's resistivity anisotropy...
Proceedings Papers

Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-EEEE
... the formation resistivity anisotropy by 1D inversion. LWD measurements can also be used to invert the horizontal resistivity and vertical resistivity. However, the 1D inversion method cannot provide accurate anisotropy measurements in permeable formations where the relative dip angle is low. A new LWD...
Proceedings Papers

Paper presented at the SPWLA 53rd Annual Logging Symposium, June 16–20, 2012
Paper Number: SPWLA-2012-124
... well logging resistivity anisotropy application saturation reservoir log analysis relative dip angle evaluation high angle well Texas Upstream Oil & Gas spwla 53 Symposium electrical anisotropy horizontal resistivity resistivity sensor Klein sensor resistivity vertical...
Proceedings Papers

Paper presented at the SPWLA 53rd Annual Logging Symposium, June 16–20, 2012
Paper Number: SPWLA-2012-202
... to explain the log. Numerical modeling showed that resistivity anisotropy, tool eccentering, thin beds or dielectric effects alone could not explain the curve separations and the anticorrelation of the attenuation and the phase difference apparent resistivity log responses. To test the hypothesis of spiraled...
Proceedings Papers

Paper presented at the SPWLA 47th Annual Logging Symposium, June 4–7, 2006
Paper Number: SPWLA-2006-N
... saturation induction tool aid field development Upstream Oil & Gas shale Symposium evaluation saturation hydrocarbon fraction interpretation resistivity anisotropy porosity north coast marine area reservoir anisotropy bearing sand Reservoir Quality Sand petrophysicist spwla 47 SPWLA...
Proceedings Papers

Paper presented at the SPWLA 46th Annual Logging Symposium, June 26–29, 2005
Paper Number: SPWLA-2005-QQQ
... Laminated formations exhibit anisotropy in several petrophysically relevant forms, notably electric resistivity and fluid-flow permeability. Resistivity anisotropy has qualitatively been known for a long time as a phenomenon in shales and laminates. Since the early 1990s it has been...
Proceedings Papers

Paper presented at the SPWLA 46th Annual Logging Symposium, June 26–29, 2005
Paper Number: SPWLA-2005-UU
... log analysis well logging resistivity anisotropy sensitivity Upstream Oil & Gas borehole Directional EM tool transmitter boundary Formation Resistivity Symposium resistivity spwla 46 interpretation antenna real time system directional measurement shale Schlumberger...
Proceedings Papers

Paper presented at the SPWLA 45th Annual Logging Symposium, June 6–9, 2004
Paper Number: SPWLA-2004-SSS
... resistivity anisotropy technique shale anisotropy technique Upstream Oil & Gas resistivity anisotropy formation evaluation hydrocarbon interpretation thinly laminae evaluation saturation reservoir resistivity tool well logging petrophysical evaluation resistivity anisotropy technique...
Proceedings Papers

Paper presented at the SPWLA 45th Annual Logging Symposium, June 6–9, 2004
Paper Number: SPWLA-2004-QQQ
... rather than Rv and Rh, there is still a need to transform the average Rv and Rh values to the Swt. In recent years, several methods for resistivity anisotropy analysis have been published that are applicable to specific geological cases. We will discuss the advantages and limitations of these methods...
Proceedings Papers

Paper presented at the SPWLA 43rd Annual Logging Symposium, June 2–5, 2002
Paper Number: SPWLA-2002-M
... ABSTRACT The HRLA* High-Resolution Laterolog Array tool brings something new to resistivity logging--a sensitivity to resistivity anisotropy in the deep measurement. The traditional deep measurements from laterolog tools are not very sensitive to anisotropy because of the surface current...
Proceedings Papers

Paper presented at the SPWLA 42nd Annual Logging Symposium, June 17–20, 2001
Paper Number: SPWLA-2001-CC
... ABSTRACT Real geological formations may exhibit resistivity anisotropy in two ways: micro-anisotropy and macro-anisotropy. Micro-anisotropy is intrinsically anisotropic because of the microstructure of the formation. However, macro-anisotropy is often due to electrical and electromagnetic well...
Proceedings Papers

Paper presented at the SPWLA 40th Annual Logging Symposium, May 30–June 3, 1999
Paper Number: SPWLA-1999-ZZ
... well logging resistivity anisotropy resistivity data log analysis vertical hole DFL Upstream Oil & Gas borehole Symposium formation anisotropy resistivity measurement invasion shale formation correction resistivity resistivity log anisotropy thinly Laterolog Hagiwara...

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