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Technical advances in pulsed-neutron interpretation for cased-hole logging; physics, interpretation, and log examples

Larry Jacobson, Venkataraman Jambunathan, Zhipeng Liu and Weijun Guo
Technical advances in pulsed-neutron interpretation for cased-hole logging; physics, interpretation, and log examples (in Geologic, geophysical, and petrophysical interpretation of core data and well logs, Chicheng Xu (prefacer), Carlos Torres-Verdin (prefacer) and Thaimar Spikes (prefacer))
Interpretation (Tulsa) (February 2015) 3 (1): SA159-SA166

Abstract

Recently developed multidetector pulsed-neutron tools (MDPNTs--a term describing a pulsed-neutron tool with at least three detectors) can provide three-phase formation fluid analysis in cased wells. These tools are 43 mm (1 11/16 in.) or 54 mm (2 1/8 in.) in diameter and can be logged in or below most tubing sizes. We reviewed traditional oil- and water-saturation techniques as well as indirect gas-saturation techniques, and we compared them with recently developed direct gas-saturation techniques, now available from MDPNTs. A log example developed the data verification and interpretation process. The interpretation process was divided into two parts: First, we verified the log data quality and second, we applied a newly developed gas model to the log data providing gas saturation without any reliance on the previously determined oil and water saturation.


ISSN: 2324-8858
EISSN: 2324-8866
Serial Title: Interpretation (Tulsa)
Serial Volume: 3
Serial Issue: 1
Title: Technical advances in pulsed-neutron interpretation for cased-hole logging; physics, interpretation, and log examples
Title: Geologic, geophysical, and petrophysical interpretation of core data and well logs
Author(s): Jacobson, LarryJambunathan, VenkataramanLiu, ZhipengGuo, Weijun
Author(s): Xu, Chichengprefacer
Author(s): Torres-Verdin, Carlosprefacer
Author(s): Spikes, Thaimarprefacer
Affiliation: Halliburton Energy Services, Houston, TX, United States
Affiliation: BHP Billiton Petroleum, Houston, TX, United States
Pages: SA159-SA166
Published: 201502
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 13
Accession Number: 2016-006937
Categories: Economic geology, geology of energy sourcesApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Secondary Affiliation: University of Texas at Austin, USA, United StatesKinder Morgan, USA, United States
Source Note: Online First
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 201604
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