1-20 of 2615 Search Results for

Magnetic susceptibility

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996460
... ABSTRACT We present the magnetic on-time transient electromagnetic (MoTEM) method to image the subsurface magnetic susceptibility. The method uses the on-time part of the waveform produced by the transmitter of transient electromagnetic systems as the inducing field. Therefore, it is an active...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170818-MS
.... The experimental approach consists of (a) synthesizing paramagnetic nanoparticles and (b) carrying out a series of magnetic susceptibility core logging measurements, using the superparamagnetic nanoparticles mixed with proppants. Numerical simulations are performed simultaneously to show that the distribution...
Journal Articles
Petrophysics 36 (04).
Paper Number: SPWLA-1995-v36n4a1
Published: 01 July 1995
...Barbara Anderson; Thomas Barber; Gordon Mowat Modem induction tools measure the quadrature, or X-signals, from the formation as an aid in skin-effect correction. Although the models on which skin-effect corrections are based assume negligible formation magnetic susceptibility. many sedimentary...
Proceedings Papers

Paper presented at the SPWLA 33rd Annual Logging Symposium, June 14–17, 1992
Paper Number: SPWLA-1992-C
... studied through modeled formations with susceptibility based on logs, cores and tabulated data on rock magnetic susceptibility. A simple technique to derive the relative magnetic susceptibility of formation layers has been developed which gives values for susceptibility that correlate well with core...
Proceedings Papers

Paper presented at the 1984 SEG Annual Meeting, December 2–6, 1984
Paper Number: SEG-1984-0232
... ABSTRACT No preview is available for this paper. positive susceptibility anomaly magnetic anomaly anomalous inclination magnetic susceptibility scalar magnetic anomaly anomaly intensity gravity magnetic 1 declination characteristic variation reservoir characterization...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428248
... Anisotropic magnetic susceptibility (AMS), as an intrinsic property, has been used widely in geological studies based on direct sample measurements. However, its application through geophysical data interpretations is rare despite its influence on the induced magnetization has been noted...
Journal Articles
Petrophysics 60 (06): 798–824.
Paper Number: SPWLA-2019-v60n6a6
Published: 01 December 2019
... susceptibility of rock grains and pore fluids might lead to significant magnetic-field inhomogeneities. The internal gradients resulting from these local field heterogeneities can cause further reduction in T 2 relaxation times as well as the T 2 cutoff. Under specific conditions, more precisely, in a free...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997835
... ABSTRACT Anisotropic magnetic susceptibility (AMS) contains information about the internal structure of magnetic geologic units and may have the potential to provide information about their formation history and subsequent geologic processes to witch these units were subjected. We examine...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-UU
...SPWLA 59 th Annual Logging Symposium, June 2-6, 2018 1 CONSTRAINING UNCERTAINTY IN COMPLEX RESERVOIR DESCRIPTION A CASE HISTORY APPLYING MAGNETIC SUSCEPTIBILITY TO ESTIMATE PERMEABILITY FROM CORE SAMPLES AND CUTTINGS John Y. Banks, Maersk Oil North Sea (UK) Ltd Andrew G. Tugwell, Advanced...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2460161-MS
... bottom water conditions, with restricted conditions becoming more dominant upsection. Diagenetic processes such as chertification of sediment gravity flow facies show distinct Si/Al signatures across the core. Anisotropy of magnetic susceptibility (AMS) quantifies the preferred orientation and intensity...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2170863-MS
... Abstract Anisotropy of magnetic susceptibility (AMS) is a high resolution petrofabric tool that measures the shape preferred orientation (SPO) and intensity of magnetic minerals in a rock. The AMS in most shale units is characterized by a magnetic fabric oriented parallel to the bedding plane...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2180548-MS
... Abstract Magnetic Susceptibility (MS) is an indicator of the concentration of magnetic particles in rocks. In pre-Quaternary sediments the magnetic susceptibility is often sourced in either Fe-rich clays (chlorites etc), or Fe-oxides (magnetite or hematite), and often shows a dilution...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1140
... Summary High resolution probe magnetic susceptibility has been used as a novel method to characterize a 110m section of slabbed core from an oil sands well in the Athabasca region of northern Alberta. The magnetic measurements were easily able to differentiate oil sands intervals from shale...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-043
... in evaluations that make it difficult for others to understand the basis for evaluation. This study aimed at adding quantitative indexes to core observation. Measurements of magnetic susceptibility and color were done for drill cores of igneous rocks and sedimentary rocks. To examine the validity...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0739
... Summary Magnetic susceptibility is a relatively unexploited tool in petrophysical core and well cutting analysis. In this study, we investigated the variability in magnetic susceptibility in well cuttings from an oil-bearing interval located between 3000 feet and 3900 feet below the surface...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-032
... investigation, an attempt is made to explore the possibility of using anisotropy of magnetic susceptibility (AMS) data as a gauge of rock strength anisotropy. For this, 10 blocks of quartzites that do not show mesoscopic foliations were sampled from a quarry in the Ghatshila area (eastern India). AMS analysis...
Proceedings Papers

Paper presented at the 2008 SEG Annual Meeting, November 9–14, 2008
Paper Number: SEG-2008-1248
... Summary Soils at many locations that have their origin in volcanic parent material and have undergone extensive weathering often exhibit strong frequency-dependent magnetic susceptibilities. The presence of such susceptibility has a profound effect on electromagnetic induction data acquired...
Proceedings Papers

Paper presented at the SPWLA 49th Annual Logging Symposium, May 25–28, 2008
Paper Number: SPWLA-2008-JJJ
...SPWLA 49th Annual Logging Symposium, May 25-28, 2008 1 A NEW BOREHOLE MAGNETIC SUSCEPTIBILITY TOOL FOR HIGH- RESOLUTION FORMATION EVALUATION S. Robinson1, S. Mrozewski, T. Hussein, W. Masterson, E. Meissner, T. Williams, W. Keogh2, G. Myers3, G. Bartington4 and D. Goldberg Lamont-Doherty Earth...
Journal Articles
Petrophysics 49 (01).
Paper Number: SPWLA-2008-v49n1a5
Published: 01 February 2008
...David K. Potter; Oleksandr P. Ivakhnenko ABSTRACT This paper describes a systematic magnetic analysis of different clay types for reservoir characterization. Most clay minerals (for example, illite or chlorite) are paramagnetic (positive magnetic susceptibility), whereas some clay minerals...
Journal Articles
Petrophysics 48 (03).
Paper Number: SPWLA-2007-v48n3a3
Published: 01 June 2007
... is low-field (initial) magnetic susceptibility. This paper will demonstrate how such measurements on core plugs, both as raw values and after novel processing of the results to mineral contents, can provide rapid predictions of key petrophysical parameters. The measurements allow "quick look...

Product(s) added to cart

Close Modal