New calculation method for the pontoon element of offshore fixed platforms for oil and gas production

• Autorzy: Aslanov Latif F. , Aslanli Ulvi L. , Aslanov Firidun L.

Identyfikatory

DOI

10.18668/NG.2025.03.05

Warianty tytułu

PL

Nowa metoda obliczeniowa dla elementu pontonowego morskich platform stałych do wydobycia ropy i gazu

• Języki publikacji: EN

Abstrakty

EN

Currently, a significant attention is given to the development of fuel and energy resources on the shelf, particularly the oil and gas fields of the Caspian Sea. Addressing this problem requires investigating a broad range of scientific and technical issues. One of the most important problems is the transportation of the support block of offshore platforms, which serves as the main element of hydraulic structures designed for oil and gas production at great depths. This research relates to offshore hydraulic engineering, specifically the construction of offshore platforms whose support structures consist of support blocks transported afloat. The article proposes a method for analyzing and optimizing geometric shapes while considering the physical properties of pontoon materials, enabling the resolution of specific practical problems. The study examines the influence of various factors on the distribution of deformations and stresses in pontoons. A general method for linearizing thin-walled structures with variable geometric parameters is introduced, offering improved convergence. An efficient calculation technique based on the small parameter method is developed. Using these methods, a computational algorithm is formulated, and a set of application programs is established. Accordingly, problems in the general theory of shells are addressed. In structures designed to ensure sufficient strength and manufacturability, all real material properties are considered, leading to more accurate calculation procedures. For a broad class of nonlinear problems in structural mechanics, accounting for the physical properties of materials allows for the identification of additional strength reserves.

PL

Obecnie wiele uwagi poświęca się rozwojowi zasobów paliw i energii na szelfie, w szczególności złożom ropy naftowej i gazu ziemnego na Morzu Kaspijskim. Rozwiązanie tego problemu wymaga analizy szerokiego zakresu zagadnień naukowych i technicznych. Jednym z kluczowych problemów jest transport bloku podporowego platform morskich, który stanowi główny element konstrukcji hydrotechnicznych przeznaczonych do wydobycia ropy i gazu na dużych głębokościach. Niniejsze badanie dotyczy morskiej inżynierii hydrotechnicznej, a w szczególności budowy platform morskich, których konstrukcje nośne składają się z bloków podporowych transportowanych na wodzie. W artykule zaproponowano metodę analizy i optymalizacji kształtów geometrycznych z uwzględnieniem właściwości fizycznych materiałów, z których wykonane są pontony, umożliwiającą rozwiązanie konkretnych problemów praktycznych. W pracy zbadano wpływ różnych czynników na rozkład odkształceń i naprężeń w pontonach. Przedstawiono ogólną metodę linearyzacji konstrukcji cienkościennych o zmiennych parametrach geometrycznych, oferującą lepszą zbieżność. Opracowano skuteczną technikę obliczeniową opartą na metodzie małego parametru. Korzystając z tych metod, sformułowano algorytm obliczeniowy oraz opracowano zestaw programów użytkowych. W rezultacie rozwiązano problemy z zakresu ogólnej teorii powłok. W konstrukcjach zaprojektowanych w celu zapewnienia wystarczającej wytrzymałości i możliwości produkcji, uwzględniane są wszystkie rzeczywiste właściwości materiałowe, co prowadzi do dokładniejszych procedur obliczeniowych. Dla szerokiej klasy nieliniowych problemów mechaniki konstrukcji, uwzględnienie właściwości fizycznych materiałów pozwala na identyfikację dodatkowych rezerw wytrzymałościowych.

Słowa kluczowe

EN

pontoon; support block; offshore platform; shells of rotation; nonlinear model

PL

ponton; blok podporowy; platforma morska; powłoki obrotowe; model nieliniowy

• Wydawca: Instytut Nafty i Gazu - Państwowy Instytut Badawczy
• Czasopismo: Nafta-Gaz
• Rocznik: 2025
• Tom: R. 81, nr 3
• Strony: 188--198
• Opis fizyczny: Bibliogr. 82 poz.

Twórcy

autor

Aslanov Latif F.

• "Oil Gas Scientific Research Project” Institute, SOCAR, Azerbaijan
• Azerbaijan University of Architecture and Construction

autor

Aslanli Ulvi L.

• "Oil Gas Scientific Research Project” Institute, SOCAR, Azerbaijan
• Azerbaijan University of Architecture and Construction

autor

Aslanov Firidun L.

• Azerbaijan University of Architecture and Construction

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