Total and spectral natural gamma-ray logs of core samples

Abdulkadir Aksoy; Mahmoud M. Nagadi; Fatah Z. Khiari; Akhtar A. Naqvi

Total and spectral natural gamma-ray logs of core samples

Abdulkadir Aksoy^*, Mahmoud M. Nagadi, Fatah Z. Khiari, Akhtar A. Naqvi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Total and spectral gamma natural radioactivity from potassium ( ⁴⁰K), uranium (²³⁸U) and thorium (²³²Th) of core samples from a local well were determined in the laboratory. The measurements were carried out using a127×127mm (5″×5″) NaI(Tl) detector and an electronic setup coupled to a PC-based data acquisition and analysis system. The data analyses of 240 samples for the depths from 466 to 511m (1529 to 1677 ft) showed that the activities ranged from 0.3 to 67 API units. The results from laboratory measurements were compared with those of field well logging measurements. It was observed that the resolution of laboratory measurements was better than that of well logging and it was found that there was a depth shift of (1 ft) between the data of the two types of measurements. The spectral gamma logs for potassium, uranium and thorium were also deduced from the spectrum analyses.

Original language	English
Pages (from-to)	15-22
Number of pages	8
Journal	Arabian Journal for Science and Engineering
Volume	31
Issue number	1 A
State	Published - Jan 2006

Keywords

Core samples
NaI(TI) detector setup
Natural radioactivities for potassium
Total and spectral natural gamma-ray logs
Uranium and thorium

ASJC Scopus subject areas

General

Cite this

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title = "Total and spectral natural gamma-ray logs of core samples",

abstract = "Total and spectral gamma natural radioactivity from potassium ( 40K), uranium (238U) and thorium (232Th) of core samples from a local well were determined in the laboratory. The measurements were carried out using a127×127mm (5″×5″) NaI(Tl) detector and an electronic setup coupled to a PC-based data acquisition and analysis system. The data analyses of 240 samples for the depths from 466 to 511m (1529 to 1677 ft) showed that the activities ranged from 0.3 to 67 API units. The results from laboratory measurements were compared with those of field well logging measurements. It was observed that the resolution of laboratory measurements was better than that of well logging and it was found that there was a depth shift of (1 ft) between the data of the two types of measurements. The spectral gamma logs for potassium, uranium and thorium were also deduced from the spectrum analyses.",

keywords = "Core samples, NaI(TI) detector setup, Natural radioactivities for potassium, Total and spectral natural gamma-ray logs, Uranium and thorium",

author = "Abdulkadir Aksoy and Nagadi, {Mahmoud M.} and Khiari, {Fatah Z.} and Naqvi, {Akhtar A.}",

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journal = "Arabian Journal for Science and Engineering",

issn = "2193-567X",

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TY - JOUR

T1 - Total and spectral natural gamma-ray logs of core samples

AU - Aksoy, Abdulkadir

AU - Nagadi, Mahmoud M.

AU - Khiari, Fatah Z.

AU - Naqvi, Akhtar A.

PY - 2006/1

Y1 - 2006/1

N2 - Total and spectral gamma natural radioactivity from potassium ( 40K), uranium (238U) and thorium (232Th) of core samples from a local well were determined in the laboratory. The measurements were carried out using a127×127mm (5″×5″) NaI(Tl) detector and an electronic setup coupled to a PC-based data acquisition and analysis system. The data analyses of 240 samples for the depths from 466 to 511m (1529 to 1677 ft) showed that the activities ranged from 0.3 to 67 API units. The results from laboratory measurements were compared with those of field well logging measurements. It was observed that the resolution of laboratory measurements was better than that of well logging and it was found that there was a depth shift of (1 ft) between the data of the two types of measurements. The spectral gamma logs for potassium, uranium and thorium were also deduced from the spectrum analyses.

AB - Total and spectral gamma natural radioactivity from potassium ( 40K), uranium (238U) and thorium (232Th) of core samples from a local well were determined in the laboratory. The measurements were carried out using a127×127mm (5″×5″) NaI(Tl) detector and an electronic setup coupled to a PC-based data acquisition and analysis system. The data analyses of 240 samples for the depths from 466 to 511m (1529 to 1677 ft) showed that the activities ranged from 0.3 to 67 API units. The results from laboratory measurements were compared with those of field well logging measurements. It was observed that the resolution of laboratory measurements was better than that of well logging and it was found that there was a depth shift of (1 ft) between the data of the two types of measurements. The spectral gamma logs for potassium, uranium and thorium were also deduced from the spectrum analyses.

KW - Core samples

KW - NaI(TI) detector setup

KW - Natural radioactivities for potassium

KW - Total and spectral natural gamma-ray logs

KW - Uranium and thorium

UR - http://www.scopus.com/inward/record.url?scp=33646766788&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:33646766788

SN - 2193-567X

VL - 31

SP - 15

EP - 22

JO - Arabian Journal for Science and Engineering

JF - Arabian Journal for Science and Engineering

IS - 1 A

ER -

Total and spectral natural gamma-ray logs of core samples

Abstract

Keywords

ASJC Scopus subject areas

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