Confined phase envelope of gas-condensate systems in shale rocks

• Autorzy: Nagy S. , Siemek J.

Identyfikatory

DOI

10.2478/amsc-2014-0069

Warianty tytułu

PL

Krzywa nasycenia układów gazowo-kondensatowych w nanoporowych skałach

• Języki publikacji: EN

Abstrakty

EN

Natural gas from shales (NGS) and from tight rocks are one of the most important fossil energy resource in this and next decade. Significant increase in gas consumption, in all world regions, will be marked in the energy sector. The exploration of unconventional natural gas & oil reservoirs has been discussed recently in many conferences. This paper describes the complex phenomena related to the impact of adsorption and capillary condensation of gas-condensate systems in nanopores. New two phase saturation model and new algorithm for search capillary condensation area is discussed. The algorithm is based on the Modified Tangent Plane Criterion for Capillary Condensation (MTPCCC) is presented. The examples of shift of phase envelopes are presented for selected composition of gas-condensate systems.

PL

Gaz ziemny z łupków (NGS) oraz z ze złóż niskoprzepuszczalnych (typu ‘tight’) staje się jednym z najważniejszych zasobów paliw kopalnych, w tym i następnym dziesięcioleciu. Znaczący wzrost zużycia gazu we wszystkich regionach świata zaznacza się głównie w sektorze energetycznym. Rozpoznawanie niekonwencjonalnych złóż gazu ziemnego i ropy naftowej w ostatnim czasie jest omawiane w wielu konferencjach. Niniejszy artykuł opisuje złożone zjawiska związane z wpływem adsorpcji i kapilarnej kondensacji w nanoporach w złożach gazowo-kondensatowych. Pokazano nowy dwufazowy model równowagowy dwufazowy i nowy algorytm wyznaczania krzywej nasycenia w obszarze kondensacji kapilarnej. Algorytm bazuje na kryterium zmodyfikowanym płaszczyzny stycznej dla kapilarnej kondensacji (MTPCCC). Przykłady zmiany krzywych nasycenia są przedstawiane w wybranym składzie systemów gazowo- kondensatowych.

Słowa kluczowe

EN

unconventional natural gas; shale gas; gas condensate; capillary condensation; adsorption; phase envelope; nanopores; Blue Gas

PL

gaz niekonwencjonalny; gaz z łupków; gaz kondensatowy; kondensacja kapilarna; adsorpcja; krzywa nasycenia; Blue Gas

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2014
• Tom: Vol. 59, no. 4
• Strony: 1005--1022
• Opis fizyczny: Bibliogr. 73 poz., rys., tab., wykr.

Twórcy

autor

Nagy S.

• AGH University of Science & Technology, Drilling & Oil-Gas Faculty, al. A. Mickiewicza 30, 30-059 Krakow, Poland

autor

Siemek J.

• AGH University of Science & Technology, Drilling & Oil-Gas Faculty, al. A. Mickiewicza 30, 30-059 Krakow, Poland

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