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Keywords: gamma ray
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Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 14th World Petroleum Congress, May 29–June 1, 1994
Paper Number: WPC-26139
.... In critical applications, these delays can mean the difference between maintaining Directional Drilling North Sea drilling operation gamma ray real time system wellbore trajectory Upstream Oil & Gas Brent Sand driller objective gas lens bit measurement steerable motor geological...
Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 12th World Petroleum Congress, April 26–May 1, 1987
Paper Number: WPC-22232
... of wide-band acoustic, pulsed neutron, nuclear magnetism, dielectric and gamma ray logging methods. The efficiency of the methods is demonstrated by their capabilities to identify reservoir formations and to determine their properties, to determine the saturation character, to estimate fluid mobility...
Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 11th World Petroleum Congress, August 28–September 2, 1983
Paper Number: WPC-20203
... hardwired circuit connected to a resistivity device in the drill string. Significant progress on MWD technology was made with the development of mud pulse telemetry in the 1950s with subsequent feasibil- ity studies demonstrating that gamma ray and resis- tivity measurements could be transmitted...
Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 8th World Petroleum Congress, June 13–18, 1971
Paper Number: WPC-14204
... Abstract A new logging equipment using a small neutron tube makes the energy spectral analysis of induced nuclear reaction gamma ray and the time analysis of neutron capture gamma ray simultaneously by the help of a counting control gate, which is synchronised with a neutron burst. The tool...
Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 6th World Petroleum Congress, June 19–26, 1963
Paper Number: WPC-10407
... Abstract. With the advent of low-cost accelerators and multichannel analyzers, and the development of purely instrumental techniques based on gamma ray spectrometrj, neutron activation analysis has become an attractive, competitive means of elemental analysis available to almost all...
Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 6th World Petroleum Congress, June 19–26, 1963
Paper Number: WPC-10408
... of the radioisotopes formed. From the resultant data, the composition of the samples is calculated automatically on an IBM 7090 computer. A series of gamma-ray spectra made at set time intervals after irradiation of a sample is the basis for two computing programs: The energies of peaks in the spectra...
Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 5th World Petroleum Congress, May 30–June 5, 1959
Paper Number: WPC-8917
... calibration [ 21. Adaptation of a variety of improved radiation detectors, permitting a greater variety of log- ging measurements. Introduction of small diameter tools (1% and l v ~ inches in diameter) for through-tubing work. Development of gamma ray instrumentation rugged enough for use attached...
Proceedings Papers
Publisher: World Petroleum Congress
Paper presented at the 5th World Petroleum Congress, May 30–June 5, 1959
Paper Number: WPC-8916
... been in use for many years are continuously undergoing improvements. This paper reviews the development and principal applications of nuclear weil logs. An aim is to evaluate critically the status of nuclear well logging in general and because of its fundamental aspects, gamma-ray logging in particular...