Archival gamma ray logs standardization by nondestructive core measurements of the low‑radioactivity rocks

• Autorzy: Skupio Rafał , Kubik Benedyk , Wolański Krzysztof

Identyfikatory

DOI

10.1007/s11600-019-00340-z

• Języki publikacji: EN

Abstrakty

EN

The present study analyzes spectral gamma ray data of low-radioactivity rock cores from Rotliegend Basin. The main goal of this research was standardization of archival gamma ray logs measured in counts per minute to American Petroleum Institute units. Selected core intervals, log data, and additional crushed samples covered three different boreholes: J-1, L-7, and K-2 from Zielona Góra Basin, localized in western Poland, where J-1 was a reference borehole. Core measurements were performed on the sandstone and conglomerate formations by Gamma Logger GT spectrometer, which uses two scintillation detectors containing bismuth germanate crystals. In the cores, real concentrations of potassium, uranium, and thorium were acquired what enabled to calculate total content of radioactive elements and total uninfluenced by uranium. Delivered new total GR_GLGT curve from cores allowed accurate standardization of archival GR curves from L-7 and K-2 boreholes. Presented results showed a very good correlation between logs, core data, and laboratory analyses. These data allow precise shale volume reinterpretation.

Słowa kluczowe

EN

rotliegend; well logging; gamma radiation; spectrometry; core logging

PL

czerwony spągowiec; geofizyka otworowa; promieniowanie gamma; spektrometria

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2019
• Tom: Vol. 67, no. 6
• Strony: 1835--1844
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Skupio Rafał

• Well Logging Department, Oil and Gas Institute – National Research Institute, Lubicz 25 A, 31‑503 Cracow, Poland

autor

Kubik Benedyk

• Well Logging Department, Oil and Gas Institute – National Research Institute, Lubicz 25 A, 31‑503 Cracow, Poland

autor

Wolański Krzysztof

• Polish Oil and Gas Company, Boh. Westerplatte 15, 65‑034 Zielona Gora, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).