中國石化新聞網訊 據Worldoil網站11月26日報導，巴黎消息-法國地球物理公司（CGG）與挪威地質勘探公司Magseis Fairfield共同宣布完成了2020年獲準的北海地區最大的OBN勘測項目。2020 OBN基礎多客戶勘測項目於2020年3月在英國中北部海域開始，並且引起了業界的極大興趣和預先注資。目前已獲取了約1,650km2的長偏移全方位角數據，第一批圖像將於2021年初提供，最終的PSDM數據計劃於2021年第四季度發布。目前正考慮在2021年進一步擴大OBN基礎勘測。
2020 OBN基礎勘測項目覆蓋了英國大陸架上兩個極具前景的區域，總計消耗81.3萬工時，為零時間損失(LTIs)。勘測成果受益於CGG公司擁有的一流OBN處理和先進的成像技術，這將大大改善地震成像質量和儲層特徵，為北海中部地區的油氣勘探和現有油田的持續開發提供新的思路。
這項勘測是專門為解決與更深，更高風險的侏羅紀和三疊紀油氣田有關的挑戰而設計的，通常是應對高壓、高溫條件，以及與二疊紀鹽層運動相關的複雜構造。全方位成像，附加褶皺和近偏移距道數據的結合將顯著改善深照度和噪聲消除，同時有助於照亮和成像由鹽底闢作用造成的陡峭側面和複雜的海底架構。
CGG執行長Sophie Zurquiyah表示:「我們很高興地宣布完成了2020 OBN基礎勘測，並祝賀CGG和Magseis Fairfield團隊在操作和HSE方面的出色表現，特別是在當前Covid-19的背景下。」新的高科技數據集將為CGG廣泛且高質量的基礎拖纜資料庫提供有效地補充，為我們的客戶提供最佳的可用信息，以降低英國第32輪許可證授予區塊的開採風險，並支持英國石油和天然氣管理局的宏觀戰略，以最大的限度實現經濟復甦。」
沈彥 摘譯自 Worldoil
原文如下：
CGG, Magseis complete North Sea’s largest OBN seismic survey
CGG and Magseis Fairfield announced their completion of the 2020 acquisition of the largest OBN survey ever acquired in the North Sea. The OBN Cornerstone 2020 multi-client survey in the UK Central North Sea commenced in March 2020 and has already received significant industry interest and prefunding. Approximately 1,650 km2 of long-offset, full-azimuth data have been acquired, with first images being made available in early 2021 and final PSDM data planned for release in Q4 2021. Further extensions of the OBN Cornerstone survey are being considered for 2021.
Covering two highly prospective areas of the UK Continental Shelf, the OBN Cornerstone 2020 survey project represented a total of 813,000 man-hours with zero Lost Time Incidents (LTIs). Survey deliverables will benefit from CGG’s best-in-class OBN processing and advanced imaging technologies, providing a step-change in seismic imaging quality and reservoir characterization detail and bringing new insight to aid continued development of plays and existing fields in the Central North Sea region.
This survey is specifically designed to address the challenges associated with deeper, higher-risk Jurassic and Triassic plays, typically under high-pressure, high-temperature conditions, and the presence of complex structural processes associated with Permian salt movement. The combination of full-azimuth imaging, additional fold and near-offset data will result in significant improvement of deep illumination and noise removal, while helping to illuminate and image the steep flanks and complex architecture created by salt diapirism.
Sophie Zurquiyah, CEO, CGG, said: 「We are pleased to announce completion of the acquisition of our OBN Cornerstone 2020 survey and would like to congratulate both the CGG and Magseis Fairfield teams for the excellent operational and HSE performance, especially within the current Covid-19 context. The new high technology data set will complement CGG’s extensive high-quality Cornerstone towed-streamer data library, providing our clients with the best available information to de-risk the awarded blocks from the UK 32nd License Round and support the UK Oil & Gas Authority’s strategy for Maximizing Economic Recovery.」