1 月 4 日，地震公司 CGG、TGS 和 Shearwater 宣布了巴西近海的三个新项目。 

由 CGG 和 TGS 实施的一项计划是亚马逊福斯 3D 多客户调查的第二阶段，该调查扩大了巴西赤道边缘的覆盖范围。Shearwater GeoServices 赢得了巴西国家石油公司 (Petrobras) 为该运营商的 Jubarte 和 Tartaruga Verde 油田进行 4D 地震的另外两份合同。

据 CGG 称，Foz do Amazonas 3D 勘测将覆盖 11,425 平方公里。

CGG 的地质学家将使用“时间滞后 FWI 和最小二乘偏移”等技术来提供更好地了解这个前沿盆地所需的高分辨率、高保真数据和图像。”CGG 首席执行官 Sophie Zurquiyah 在一份报告中表示。新闻稿。

现有的 2D 数据和相邻的 3D 数据表明该位置存在储层沉积航道，其覆盖与圭亚那盆地石油系统同期的源层段。盆地模型研究预测了一个成熟的早白垩世含油气系统，具有广泛的区域储层分布。

据 CGG 称，法属圭亚那附近的 Zaedyus 发现以及利比里亚和塞拉利昂共轭边缘的 Narina 和 Venus 野猫发现支持了亚马逊福斯盆地的资源潜力。

早期推出的 PSDM 产品将于 2023 年第四季度推出，最终产品将于 2024 年第三季度推出。该项目得到了行业资金的支持。 

在巴西近海其他地方，巴西国家石油公司授予坎波斯盆地油田的 Shearwater 4D 勘探合同。 

第一份合同是对 Jubarte（座头鲸）和 Baleia An Macro 油田进行第二次 4D 监测调查。Shearwater 预计该项目将于 2023 年第三季度启动。 

第二份合同涵盖在 Tartaruga Verde（绿海龟）领域获取高分辨率基线 4D 勘测，以及重力和磁力测量。该调查预计于 2024 年初开始。

Seismic companies CGG, TGS and Shearwater announced a trio of new programs offshore Brazil on Jan. 4. 

One program, carried out by CGG and TGS, is the second phase of the Foz do Amazonas 3D multi-client survey, which extends coverage in the Brazil Equatorial Margin. Shearwater GeoServices won the other two contracts for 4D seismic from Petrobras for the operator’s Jubarte and Tartaruga Verde fields.

According to CGG, the Foz do Amazonas 3D survey will cover 11,425 sq km.

CGG’s geologists will use technologies such as “time-lag FWI and least-squares migration to provide the high-resolution, high-fidelity data and images necessary to better understand this frontier basin,” CGG CEO Sophie Zurquiyah said in a press release.

Existing 2D data and adjacent 3D data indicate the presence of reservoir depositional fairways in this location, which overlies a source interval contemporaneous with the Guyana Basin petroleum system. Basin model studies predict a mature Early Cretaceous petroleum system with extensive regional reservoir distribution.

The nearby Zaedyus discovery in French Guyana and the Narina and Venus wildcat discoveries on the conjugate margins of Liberia and Sierra Leone support resource potential in the Foz do Amazonas Basin, according to CGG.

Early-out PSDM products will be available in the fourth quarter of 2023, with final products available from the third quarter of 2024. The project is supported by industry funding. 

Elsewhere offshore Brazil, Petrobras awarded Shearwater 4D survey contracts for Campos Basin fields. 

The first contract is for a second 4D monitor survey over the Jubarte (Humpback) and Baleia Anã fields. Shearwater expects the project to start in the third quarter of 2023. 

The second contract covers the acquisition of a high-resolution baseline 4D survey, together with gravity and magnetic measurements, over the Tartaruga Verde (Green Turtle) field. The survey is expected start in early 2024.