Helium porosity measurements for rocks from unconventional reservoirs performed on crushed samples

• Autorzy: Klaja J. , Łykowska G. , Przelaskowska A.

Identyfikatory

DOI

10.18668/NG2015.11.07

Warianty tytułu

PL

Badania porowatości helowej skał ze złóż niekonwencjonalnych na próbkach pokruszonych

• Języki publikacji: EN

Abstrakty

EN

Porosity measurements for rocks from unconventional reservoirs pose a challenge due to their extremely low permeability, small pore dimensions, and high content of organic matter and clay minerals. The presented work was aimed at adapting the helium porosity measurement methodology for the investigation of microporous rocks. The carried out studies have shown that the measurement conditions are important, which applies both to the measurement pressure and the grain size. The highest porosity values were obtained for measurements performed on samples crushed to grain size < 0.5 mm.

PL

Pomiary porowatości skał ze złóż niekonwencjonalnych stanowią wyzwanie ze względu na bardzo niską przepuszczalność, niewielkie rozmiary porów, wysoką zawartość substancji organicznej i minerałów ilastych. Przedstawiona praca ma na celu przystosowanie metodyki pomiaru porowatości helowej do badań skał mikroporowych. Wykonane badania wykazały, że warunki pomiaru mają tutaj duże znaczenie, dotyczy to zarówno ciśnienia pomiaru i rozmiaru ziaren. Najwyższe wartości porowatości uzyskano dla pomiarów wykonanych na próbkach pokruszonych do frakcji < 0,5 mm.

Słowa kluczowe

EN

gas-shale; micropores; helium porosity

PL

łupki gazonośne; mikropory; porowatość helowa

• Wydawca: Instytut Nafty i Gazu - Państwowy Instytut Badawczy
• Czasopismo: Nafta-Gaz
• Rocznik: 2015
• Tom: R. 71, nr 11
• Strony: 856--863
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Klaja J.

• Department of Well Logging Oil and Gas Institute – National Research Institute ul. Lubicz 25 A 31-503 Kraków

autor

Łykowska G.

• Laboratory of Well Logging Oil and Gas Institute – National Research Institute ul. Lubicz 25 A 31-503 Kraków

autor

Przelaskowska A.

• Department of Well Logging Oil and Gas Institute – National Research Institute ul. Lubicz 25 A 31-503 Kraków

Bibliografia

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• [4] Karastathis A.: Petrophysical measurements on tight gas shale. Master of Science Thesis, University of Oklahoma, 2007.
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• [12] Milner M., McLin R., Petriello J.: Imaging Texture and Porosity in Mudstones and Shales: Comparison of Secondary and Ion-Milled backscatter SEM Methods. Canadian Society for Unconventional Gas/Society of Petroleum Engineers Canadian Unconventional Resources and International Petroleum Conference, Calgary, Alberta 19–21 October 2010, SPE Paper 138975, pp. 1–10.
• [13] Passey Q. R., Bohacs K. M., Esch W. L., Klimentidis R., Sinha S.: From Oil-Prone Source Rock to Gas-Producing  Shale Reservoir – Geologic and Petrophysical Characterization of Unconventional Shale-Gas Reservoirs. CPS/SPE International Oil & Gas Conference and Exhibition, Bejing 8–10 June 2010.
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Uwagi

EN

The article is the result of research conducted in connection with the project: The methodology for determining sweet spots on the basis of geochemical, petrophysical, geomechanical properties based on the correlation of laboratory test results with geophysical measurements and 3D generating model, co-funded by the National Centre for Research and Development as part of the programme BLUE GAS – POLISH SHALE GAS. Contract No. BG1/MWSSSG/13.