---
title: "TGS partners with Sierra Leone petroleum directorate on offshore seismic reprocessing projects"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/291227336.md"
description: "TGS has partnered with Sierra Leone’s Petroleum Directorate to reprocess offshore seismic data, aiming to enhance imaging for exploration. The project covers 24,000 km of 2D and 4,155 sq km of Mabesi 3D seismic data, utilizing pre-stack depth migration and machine learning. The Mabesi 3D volume will merge with the Fusion 3D dataset completed in December 2025. Interim products are expected in 2026, with final deliverables due in Q1 2027 (3D) and Q3 2027 (2D)."
datetime: "2026-06-30T05:05:52.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/291227336.md)
  - [en](https://longbridge.com/en/news/291227336.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/291227336.md)
---

# TGS partners with Sierra Leone petroleum directorate on offshore seismic reprocessing projects

-   TGS partnered with Sierra Leone’s Petroleum Directorate to reprocess offshore seismic data, targeting improved imaging to support exploration screening and prospect selection. \* Scope covers 24,000 km of 2D seismic and 4,155 sq km of Mabesi 3D seismic, using pre-stack depth migration and machine-learning workflows. \* Mabesi 3D volume will be merged with the Fusion 3D reprocessing completed in December 2025, creating a unified 3D dataset. \* Interim early-out products are expected in 2026; final Mabesi 3D deliverables are due in Q1 2027, with final 2D products due in Q3 2027. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. TGS ASA published the original content used to generate this news brief on June 30, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT) Original Document: here

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