Identification of gas reservoirs and determination of their parameters by combination of radioactive logging methods

The paper proposes a new approach for using a combination of radioactivity logging (neutron and density logging), which allows determining a set of gas reservoir parameters (nature of saturation, true porosity, gas saturation) taking into account influence of the pressure and temperature conditions...

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Datum:2016
Hauptverfasser: Kulyk, V.V., Bondarenko, M.S.
Format: Artikel
Sprache:English
Veröffentlicht: Інститут геофізики ім. С.I. Субботіна НАН України 2016
Schriftenreihe:Геофизический журнал
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Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/103763
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Identification of gas reservoirs and determination of their parameters by combination of radioactive logging methods / V.V. Kulyk, M.S. Bondarenko // Геофизический журнал. — 2016. — Т. 38, № 2. — С. 106-119. — Бібліогр.: 29 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
Beschreibung
Zusammenfassung:The paper proposes a new approach for using a combination of radioactivity logging (neutron and density logging), which allows determining a set of gas reservoir parameters (nature of saturation, true porosity, gas saturation) taking into account influence of the pressure and temperature conditions of occurrence. Analysis of the ways of averaging the neutron-apparent porosity and the density-apparent porosity for obtaining the true porosity was made. Method of determination of gas saturation, which uses the same combination of radioactivity logging as in determining the true porosity of gas reservoirs, was developed. The results presented in the paper, were obtained over a wide interval of depth (up to 10 km). Application of developed approaches for determination of petrophysical parameters of gas reservoirs is demonstrated by the example of cased coalbed methane well.