Drilling fluids in complicated conditions: a review

• Autorzy: Shmoncheva Yelena Y. , Jabbarova Gullu V. , Abdulmutalibov Timur E.

Identyfikatory

DOI

10.18668/NG.2023.10.03

Warianty tytułu

PL

Płuczki wiertnicze w skomplikowanych warunkach: przegląd

• Języki publikacji: EN

Abstrakty

EN

The review in this article focuses on various aspects of drilling extended reach (ERD) wells. Reaching extreme depths and setting world records for deviation illustrates the importance of well design and operating strategies. Studies of articles describing various locations, including Sakhalin Island in Russia and offshore Vietnam, provide insight into ERD operations. Furthermore, the challenges of drilling in specific geological conditions, such as layered sandstones and reactive clay, are considered. Particular attention is paid to issues related to wellbore instability and drilling fluid optimization. The results of technical studies highlight the key role of maintaining wellbore stability in achieving successful ERD results. The articles emphasize the importance of understanding geomechanical factors, employing optimal mud weight, lubrication, and specialized drilling fluids to counteract instability. It demonstrates that maintaining appropriate mud weights and employing specific drilling techniques are crucial for mitigating instability-related issues. The integration of mechanical and chemical approaches is advocated for effectively managing shale-related instability. The utilization of innovative materials and fluid systems is central to the successful resolution of stability-related problems. The incorporation of micronized sealing polymers in conjunction with conventional plugging materials is detailed as an effective approach to counter wellbore instability. The synergistic combination of materials, additives and mud salinity is showcased to achieve effective shale stabilization and optimize drilling time. The authors emphasize the importance of selecting the optimal composition for each well based on experience and laboratory testing and present laboratory-tested solutions that have been successfully applied in field operations. In summary, these articles collectively offer insights into a range of strategies to combat wellbore instability. They cover the use of advanced materials, innovative fluid systems, and chemical approaches to maintain wellbore stability, improve drilling efficiency, and reduce nonproductive time.

PL

Przegląd zawarty w niniejszym artykule skupia się na różnych aspektach wiercenia odwiertów o wydłużonym zasięgu (ERD). Osiąganie ekstremalnych głębokości i ustanawianie rekordów świata w zakresie odchyleń ilustruje znaczenie projektowania odwiertu i strategii eksploatacyjnych. Przegląd artykułów opisujących różne lokalizacje, obejmujące wyspę Sachalin w Rosji oraz szelf w Wietnamie, zapewnia wgląd w operacje ERD. Ponadto rozważane są wyzwania związane z wierceniem w specyficznych warunkach geologicznych, takich jak piaskowce warstwowane oraz reaktywne iły. Szczególną uwagę zwraca się na zagadnienia związane z niestabilnością odwiertów i optymalizacją płuczki wiertniczej. Wyniki badań technicznych podkreślają kluczową rolę utrzymania stabilności odwiertu w osiąganiu udanych wyników ERD. W artykułach podkreślono znaczenie zrozumienia czynników geomechanicznych, stosowania płuczki o optymalnym ciężarze, smarowania oraz specjalistycznych płynów wiertniczych w celu przeciwdziałania niestabilności. Pokazano, że utrzymywanie odpowiedniego ciężaru płuczki oraz stosowanie specjalnych technik wiercenia ma kluczowe znaczenie dla złagodzenia problemów związanych z niestabilnością. Dla skutecznego zarządzania niestabilnością związaną z łupkami zaleca się integrację podejścia mechanicznego i chemicznego. Wykorzystanie innowacyjnych materiałów i systemów płynów ma kluczowe znaczenie dla udanego rozwiązywania problemów związanych ze stabilnością. Włączenie mikronizowanych polimerów uszczelniających w powiązaniu z konwencjonalnymi materiałami uszczelniającymi jest opisywane szczegółowo jako skuteczne podejście w celu przeciwdziałania niestabilności odwiertu. Synergiczne połączenie materiałów, dodatków oraz zasolenia płuczki jest przedstawiane jako sposób osiągnięcia skutecznej stabilizacji łupków i optymalizacji czasu wiercenia. Autorzy podkreślają znaczenie doboru optymalnego składu dla każdego odwiertu na podstawie doświadczenia i badań laboratoryjnych oraz obecne rozwiązania przetestowane laboratoryjnie, które zostały z powodzeniem zastosowane w operacjach terenowych. Podsumowując, artykuły te łącznie oferują wgląd w szereg strategii zwalczania niestabilności odwiertów. Obejmują one zastosowanie zaawansowanych materiałów, innowacyjnych systemów płynów oraz rozwiązania chemiczne w celu utrzymania stabilności odwiertu, poprawy wydajności wiercenia oraz zmniejszenia czasu nieproduktywnego.

Słowa kluczowe

EN

extended reach wells; wellbore instability; drilling fluids; mud loss; shale stabilization; geomechanical factors; mud weight; filter cake; polymer system; optimization

PL

odwierty o wydłużonym zasięgu; niestabilność odwiertu; płyny wiertnicze; ucieczki płuczki; stabilizacja łupków; parametry geomechaniczne; ciężar właściwy płuczki; placek filtracyjny; system polimerowy; optymalizacja

• Wydawca: Instytut Nafty i Gazu - Państwowy Instytut Badawczy
• Czasopismo: Nafta-Gaz
• Rocznik: 2023
• Tom: R. 79, nr 10
• Strony: 651--660
• Opis fizyczny: Bibliogr. 46 poz., rys.

Twórcy

autor

Shmoncheva Yelena Y.

• Azerbaijan State Oil and Industry University

autor

Jabbarova Gullu V.

• Azerbaijan State Oil and Industry University

autor

Abdulmutalibov Timur E.

• Azerbaijan State Oil and Industry University

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).