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Sinopec stellt mit 5300 Metern einen neuen Rekord in der vertikalen Bohrlochtiefe auf
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SINOPEC

May 15, 2025, 03:40 ET

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BEIJING, 15. Mai 2025 /PRNewswire/ -- China Petroleum & Chemical Corporation  (HKG: 0386, „Sinopec") hat einen bedeutenden Durchbruch bei der Schiefergasexploration in ihrem Projekt Deep Earth – Sichuan and Chongqing Natural Gas Base bekannt gegeben, dass ihre Tiebei-1HF-Bohrung mit einer hohen Tagesleistung von 314 500 Kubikmetern Industriegasfluss getestet wurde. Die vertikale Tiefe des Bohrlochs beträgt über 5300 Meter mit einem 1312 Meter langen horizontalen Abschnitt, was einen neuen Rekord für die vertikale Tiefe von Schiefergasbohrungen in China darstellt.

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Sinopec Sets New Vertical Well Depth Record of 5,300 Meters.
Sinopec Sets New Vertical Well Depth Record of 5,300 Meters.

Der Durchbruch wird die Gasreserven sowie die Produktionseffizienz im Gebiet Puguang steigern und zur Erschließung von ultratiefem Schiefergas im Sichuan-Becken beitragen. Das Puguang-Gas- und -Ölfeld ist das erste besonders große, tiefe und sehr schwefelreiche Gasfeld in China, das in großem Maßstab erschlossen und seit 20 Jahren effizient erschlossen wird.

Um das Ziel einer langfristig stabilen Schiefergasproduktion zu erreichen, ist Sinopec ständig auf der Suche nach neuen Ressourcen und hat dabei das obere Perm von Puguang ins Auge gefasst. Die meisten Ressourcen befinden sich jedoch im ultratiefen Feld mit einer Vergrabungstiefe von über 4500 Metern, das wegen der raschen Geschwindigkeitsänderungen in den Schichten als „verbotene Zone" gilt. Sinopec bewältigte den Engpass durch umfangreiche Forschung und technologische Innovationen, um eine 100-prozentige Trefferquote bei der Bohrung von hochwertigem Schiefergestein im horizontalen Abschnitt mit einer Bohrpräzision zu erreichen, die mit dem „Einfädeln einer Nadel im tiefen Untergrund" vergleichbar ist, um schließlich die Tiebei-1HF-Bohrung erfolgreich durchzuführen.

Die von Sinopec selbst entwickelte 175-MPa-Ultrahochdruck-Fracturing-Anlage (UHP) optimiert dynamisch die Parameter vor Ort mit unterschiedlichen Strategien für jeden Abschnitt und eröffnete eine „künstliche Gasstraße" in der Hochdruckschicht in 5300 Metern Tiefe, die alle Ressourcen aus den tiefsten und entferntesten Enden der Gaslagerstätte zurückbringt, um die Erschließung zu maximieren.

Derzeit arbeitet Sinopec Zhongyuan Oilfield einen umfassenden Explorations- und Erschließungsplan für das Gas im oberpermischen Schiefer in Puguang aus, um die effiziente Umwandlung der Ressourcen zu fördern.

Die Erkundung sowie Erschließung von Schiefergas ist für Chinas Energielandschaft von strategischer Bedeutung und Sinopec übernimmt aktiv die Verantwortung und entdeckte 2012 das Schiefergasfeld Fuling, welches den Startschuss für die kommerzielle Erschließung von Schiefergas in China gab.

Weitere Informationen finden Sie auf http://www.sinopec.com/listco/en/.

Foto – https://mma.prnewswire.com/media/2687207/Image.jpg
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