英国北海最大海底节点（OBN）地震勘测完成

街友18866088 · 发表于 2020-12-1 11:00:52

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中国石化新闻网讯据Worldoil网站11月26日报导，巴黎消息-法国地球物理公司（CGG）与挪威地质勘探公司Magseis Fairfield共同宣布完成了2020年获准的北海地区最大的OBN勘测项目。2020 OBN基础多客户勘测项目于2020年3月在英国中北部海域开始，并且引起了业界的极大兴趣和预先注资。目前已获取了约1,650km2的长偏移全方位角数据，第一批图像将于2021年初提供，最终的PSDM数据计划于2021年第四季度发布。目前正考虑在2021年进一步扩大OBN基础勘测。

2020 OBN基础勘测项目覆盖了英国大陆架上两个极具前景的区域，总计消耗81.3万工时，为零时间损失(LTIs)。勘测成果受益于CGG公司拥有的一流OBN处理和先进的成像技术，这将大大改善地震成像质量和储层特征，为北海中部地区的油气勘探和现有油田的持续开发提供新的思路。

这项勘测是专门为解决与更深，更高风险的侏罗纪和三叠纪油气田有关的挑战而设计的，通常是应对高压、高温条件，以及与二叠纪盐层运动相关的复杂构造。全方位成像，附加褶皱和近偏移距道数据的结合将显着改善深照度和噪声消除，同时有助于照亮和成像由盐底辟作用造成的陡峭侧面和复杂的海底架构。

CGG首席执行官Sophie Zurquiyah表示:“我们很高兴地宣布完成了2020 OBN基础勘测，并祝贺CGG和Magseis Fairfield团队在操作和HSE方面的出色表现，特别是在当前Covid-19的背景下。”新的高科技数据集将为CGG广泛且高质量的基础拖缆数据库提供有效地补充，为我们的客户提供最佳的可用信息，以降低英国第32轮许可证授予区块的开采风险，并支持英国石油和天然气管理局的宏观战略，以最大的限度实现经济复苏。”

沈彦摘译自 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.”

来源：新浪

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[闲谈] 英国北海最大海底节点（OBN）地震勘测完成

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