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Keywords: potassium
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Proceedings Papers
Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0075
..., uranium and potassium element concentrations in different directions, the LWD azimuthal natural gamma ray spectrometry technology is helpful in evaluating reservoir geological characteristics and real-time drilling geosteering. Elemental imaging is one key breakthrough of this technology to make more...
Proceedings Papers
Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0062
... for decades (Lock and Hoyer, 1971; Flanagan et al., information to reduce the mineral volume uncertainty, 1991). They provide the concentrations of thorium, especially for the clays in the formation with complex potassium and uranium in the formation, as well as total mineral assemblages. In the studied...
Proceedings Papers
Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-RRRR
... analysis uranium calibration facility low-activity zone Upstream Oil & Gas cement Symposium conversion factor radionuclide University well logging tool characterization gamma ray tool characterization calibration pit high-activity zone borehole potassium spwla 58 Scenario SPWLA 58...
Proceedings Papers
Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-U
... involves point-based ternary diagrams and the results are not easily presented in a depth based log. Colour cubing is a technique for turning the portion of the total gamma ray signal that is due to potassium, uranium, and thorium into distinct and meaningful colour patterns. Colour cubing uses the red...
Proceedings Papers
Libai Xu, Cornelis Huiszoon, Jiaxin Wang, Bob Adolph, Jong Yi, Dustin Cavin, Gary Laughlin, Ed Tollefsen, Scott Jacobsen, Matt Boyce
Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-JJJJ
... definition, thereby enabling a measurement with very good statistical precision. Highly accurate characterization formations for potassium (K), uranium (U), and thorium (Th) were constructed. Tool responses acquired in these standard formations, as well as in the spectral gamma spectroscopy pits...
Proceedings Papers
Paper presented at the SPWLA 53rd Annual Logging Symposium, June 16–20, 2012
Paper Number: SPWLA-2012-119
... detector gamma ray 75-inch tool density measurement Upstream Oil & Gas formate brine invasion effect formate mud well logging Brine porosity standoff response log analysis potassium correction count rate borehole fluid spwla 53 invasion depth Symposium invasion standoff...
Proceedings Papers
Paper presented at the SPWLA 46th Annual Logging Symposium, June 26–29, 2005
Paper Number: SPWLA-2005-LL
... performed to check for unique formate-mud effects on spectral density measurements that may require special treatment. Formate brines are formulated to achieve a desired fluid density by using one or more compounds, e.g., sodium, potassium, or cesium formate. In some instances, the mixture results...
Proceedings Papers
Paper presented at the SPWLA 29th Annual Logging Symposium, June 5–8, 1988
Paper Number: SPWLA-1988-B
... gamma calibration pit. Additional tests were also conducted under controlled conditions to either derive or verify the magnitudes of background radiation transmitted through the environmental calibrator, the air-to-water attenuation factor, and the effect of mud potassium concentration on both...
Proceedings Papers
Paper presented at the SPWLA 26th Annual Logging Symposium, June 17–20, 1985
Paper Number: SPWLA-1985-VV
... metals & mining Susceptibility greywacke potassium log analysis anomaly geophysics gold mineralization Reservoir Characterization Upstream Oil & Gas alteration Symposium geological survey exploration carbonatization pyrite well logging concentration silicification...
Proceedings Papers
Paper presented at the SPWLA 25th Annual Logging Symposium, June 10–13, 1984
Paper Number: SPWLA-1984-W
... displays the thorium and uranium concentrations in ppm, the potassium concentration in percent and the gross gamma count in API units. The pulse height spectra are continuously recorded on magnetic tape during the logging operation and can be played back in post-processing to yield more sophisticated...
Proceedings Papers
Paper presented at the SPWLA 23rd Annual Logging Symposium, July 6–9, 1982
Paper Number: SPWLA-1982-K
... ABSTRACT Natural gamma ray spectral data of various sandstone core materials was measured via laboratory gamma ray spectrometer. The 145 core samples are representative in terms of total gamma ray activity of clean sands, shaly sands, and surrounding shales in nine wells. Potassium...
Proceedings Papers
Paper presented at the SPWLA 21st Annual Logging Symposium, July 8–11, 1980
Paper Number: SPWLA-1980-Q
..., and potassium (Th, U, K) are primarily responsible for the energy spectrum observed by the tool. The individual contributions of the three elements in relation to the total formation weight are calculated from the energy spectra. Elemental concentrations thus calculated have showed correlation to depositional...
Proceedings Papers
Paper presented at the SPWLA 21st Annual Logging Symposium, July 8–11, 1980
Paper Number: SPWLA-1980-O
... hypotheses of uranium mineralization there. Raw log data were converted to concentrations of potassium (K), uranium (eU), and thorium (eTh), then the data were block averaged over 25-foot intervals to obtain mean concentrations. Based on the resultant values, slice maps were constructed by contouring...
Proceedings Papers
Paper presented at the SPWLA 20th Annual Logging Symposium, June 3–6, 1979
Paper Number: SPWLA-1979-GG
... intrinsic germanium detector Upstream Oil & Gas uranium uranium exploration germanium detector Spwla Twentieth metals & mining detector ray spectroscopy application Symposium well logging Gamma Ray Spectroscopy PGT probe Probe potassium disequilibrium high resolution gamma ray...
Proceedings Papers
Paper presented at the SPWLA 20th Annual Logging Symposium, June 3–6, 1979
Paper Number: SPWLA-1979-EE
... ABSTRACT Experimentally determined factors are presented that correct spectral gamma-ray logs for the effects of varying borehole fluid and casing attenuation. These corrections are for gamma-ray spectra from the naturally radioactive isotopes of potassium (K), uranium (U), and thorium (Th...
Proceedings Papers
Paper presented at the SPWLA 20th Annual Logging Symposium, June 3–6, 1979
Paper Number: SPWLA-1979-P
... reservoirs to their fullest extent. Several conclusions were drawn about the applications and interpretations that should be applied to this log. log analysis concentration shale Upstream Oil & Gas thorium log analyst gamma ray radioactive element potassium radioactivity Spwla Twentieth...
Proceedings Papers
Paper presented at the SPWLA 20th Annual Logging Symposium, June 3–6, 1979
Paper Number: SPWLA-1979-FF
... ABSTRACT The effect of borehole formation parameters on spectral gamma-ray probe response has been calculated from radiation theory. Results are presented for the effect of formation bulk density and composition on the gamma-ray spectra from potassium, uranium, and thorium. Experimentally...
Proceedings Papers
Paper presented at the SPWLA 19th Annual Logging Symposium, June 13–16, 1978
Paper Number: SPWLA-1978-HH
... Geophysical Well Logs Representative CNI. (LIMESTONE POW) % I of a Tuffite Formation (Mina D I I I I I SPONTANEOUS POTENTIAL. I I RESlSTlvlTY I I POROSITY I-- I SPECTRALOG I , POTASSIUM (0.26 % CO) SILICON CALCIUM LOG !I Carmen) FIGURE 2 I I I SPECTRALOG I SILICON-CALCIUM POTASSIUM -- URANIUM I SILICON 0 15K...
Proceedings Papers
Paper presented at the SPWLA 17th Annual Logging Symposium, June 9–12, 1976
Paper Number: SPWLA-1976-H
... technique, with a [Na 11 - thallium activated detector, for quantitative determination of uranium thorium and potassium in formations encountered in bore holes. The geological applications of this log have been based on laboratory work carri-d out to define the geochemical cycle of the naturally radioactive...
Proceedings Papers
Paper presented at the SPWLA 17th Annual Logging Symposium, June 9–12, 1976
Paper Number: SPWLA-1976-DD
.... Natural gamma rays originate from the radioactive isotope of Potas - sium and the radioactive elements of the Uranium and Thorium series. Each of these three groups of elements (Potassium, Uranium, Thorium) contributes its distinctive spectrum to that of the formation in proportion to its abundance. Thus...
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