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Keywords: neutron porosity
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Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 59 (02): 162–184.
Paper Number: SPWLA-2018-v59n2a4
Published: 01 April 2018
... model for the calculation of total porosity and then eliminated the effect of gas saturation in the petrophysical model by combining density and neutron-porosity logging. After that, evaluations of matrix density, matrix neutron porosity, and organic matter were conducted using a combined method of...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 55 (04): 333–348.
Paper Number: SPWLA-2014-v55n4a6
Published: 01 August 2014
...-density log from conventional limestone and water scaling of electron density to opal and brine scaling of electron density. The neutron-porosity log was corrected for the hydrogen-index contribution of solid phase. The corrected neutron porosity is lower than the conventional neutron porosity by ~3 to 4...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 45 (01).
Paper Number: SPWLA-2004-v45n1a5
Published: 01 January 2004
...Darwin V. Ellis; Charles R. Case; Joseph M. Chiaramonte ABSTRACT This second tutorial on neutron porosity logging is part of an ongoing series on the general topic of porosity being published in Petrophysics. Part 1 dealt with the physics of the measurement and introduced a generic thermal neutron...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 42 (05).
Paper Number: SPWLA-2001-v42n5a2
Published: 01 September 2001
... and neutron porosity has been defined. The polarity (i.e, the sign) of the coefficient is different for gas-bearing zones and oil-bearing zones. The correlation coefficient can be extended to an approach for identifying natural gas formations since it is more sensitive to gas. The example of one well...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 42 (05).
Paper Number: SPWLA-2001-v42n5a1
Published: 01 September 2001
... between the neutron porosity values and the density-porosity calculated from the bulk density data assuming that the density of the pore fluid is 1 g/cm3 and that of the mineral phase is 2.65 g/cm3 (Figure lc). The neutron porosity values are likely to overestimate the total porosity in a clay-rich...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 30 (03).
Paper Number: SPWLA-1989-v30n3a5
Published: 01 May 1989
... identifying water producing intervals are included. 1 5 1989 1 5 1989 1989. Society of Petrophysicists & Well Log Analysts Upstream Oil & Gas well logging CNL sandstone Prudhoe Bay interpretation neutron porosity Neutron log sand production open-hole cnl log analyst may...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 30 (03).
Paper Number: SPWLA-1989-v30n3a1
Published: 01 May 1989
...L.S. Allen; W.R. Mills; D.C. Stromswold Pulsed neutron porosity (PNP) logging is a new method of determining formation porosity in which the die-away of epithermal neutrons with time is measured following emission of pulses of neutrons. The pulsed neutron technique offers superior intrinsic...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 29 (03).
Paper Number: SPWLA-1988-v29n3a5
Published: 01 May 1988
.... Three working groups were established to address the specific areas of primary calibration of neutron porosity tools, secondaryltertiary calibration of neutron porosity tools, and pulsed neutron measurements. 1 5 1988 1 5 1988 1988. Society of Petrophysicists & Well Log Analysts...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 27 (03).
Paper Number: SPWLA-1986-vXXVIIn3a3
Published: 01 May 1986
.../m3) on 4-5-72 from 525-925 m. Caliper (cm), gamma ray (API units) and sidewall neutron porosity on 4-6-72 from 525-925 m. MAY-JUNE, 1986 28 O I- h - 0 In m L 0 In (3, - 0 In 0 N 0 Ln N c 0 I\ cn LLI I- v, u - z N Z 0 QI F 3 W Z u Z - 0 v, V W U-J * \ 3 Y 1 1 I 1 I I I I 0 0 * CT w I Q V - 3 0 Q:: I I...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 23 (03).
Paper Number: SPWLA-1982-vXXIIIn3a3
Published: 01 May 1982
... BHGM bhgm log BHGM density exploration PNC log flank pnc porosity Upstream Oil & Gas bulk density neutron porosity interpretation Crossplot bypassed gas water line DETECTION OF BYPASSED GAS USING BOREHOLE GRAVTMETER AND PULSED NEUTRON CAPTURE LOGS LUKE S. GOURNAY and ROBERT E. MAUTE...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 21 (02).
Paper Number: SPWLA-1980-vXXIn2a2
Published: 01 March 1980
... properly calibrated in order to accurately determine the magnitude of the reserves. A frequency histogram of the density and of the neutron porosity on each well was compared with the field total histograms. This comparison along with densityneutron cross-plots and maps of average porosity were used to...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 21 (01).
Paper Number: SPWLA-1980-vXXIn1a1
Published: 01 January 1980
... were associated with basaltic layers. 1 1 1980 1 1 1980 1980. Society of Petrophysicists & Well Log Analysts well logging limestone matrix neutron porosity sequence Upstream Oil & Gas basalt response data discrimination log analysis gr response porosity...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 17 (06).
Paper Number: SPWLA-1976-vXVIIn6a2
Published: 01 November 1976
.... Who knows what M =I 0.83 and N = 0.64 represent? 1 11 1976 1 11 1976 1976. Society of Petrophysicists & Well Log Analysts Upstream Oil & Gas mid plot well logging halite porosity MN Plot anhydrite sandstone neutron porosity snp neutron porosity fresh mud...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 6 (05).
Paper Number: SPWLA-1966-vVIn5a5
Published: 01 September 1966
... neutron devices for the determination of porosity and lithology. 1 9 1966 1 9 1966 1966. Society of Petrophysicists & Well Log Analysts well logging gypsum core analysis Upstream Oil & Gas neutron log analysis gamma ray neutron porosity determination fracture matrix...

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