CNOOC Limited's Mero4 Project Begins Major Oil Production

Author: Henry Turner Updated: 05-26-2025 07:09 AM

CNOOC Limited Celebrates Mero4 Project Production Start

CNOOC Limited (the "Company", SEHK: 00883 (HKD Counter) and 80883 (RMB Counter), SSE: 600938) is thrilled to announce the commencement of production at the Mero4 Project in Brazil.

The Mero field is strategically positioned in the Santos Basin's pre-salt area, approximately 180 kilometers offshore. At depths ranging from 1,800 to 2,100 meters, the project leverages advanced deep-water production techniques. Twelve development wells are planned, incorporating five dedicated oil producers, six water or gas alternate injectors, and one convertible well. This intelligent system enables a seamless switch between production and injection modes directly from the platform, enhancing efficiency.

Advanced Technology Enhances Mero4 Production

Among the notable features of the Mero4 Project is the utilization of one of the largest Floating Production Storage and Offloading (FPSO) units globally. This FPSO, integrated in China, made its journey to the oilfield earlier this year, boasting a production capability of 180,000 barrels of crude oil and handling a remarkable 12 million cubic meters of natural gas daily. Furthermore, it can reinject 250,000 cubic meters of water, augmenting the Mero field's overall production capacity to an impressive 770,000 barrels per day.

Sustainability at the Core of Mero4

In line with modern environmental standards, the Mero4 Project incorporates a High-Pressure Separator (HISEP). This innovative technology facilitates the underwater separation of extracted oil from associated gas, allowing for the reinjection of gas back into the reservoir. This approach not only boosts production levels but also significantly reduces associated emissions, aligning with global sustainability aims.

Collaboration with Key Industry Players

CNOOC Petroleum Brasil Ltda, a wholly-owned subsidiary, has a significant 9.65% interest in the project. Petrobras, the leading operator, holds a 38.6% interest, with TotalEnergies and Shell Brasil each taking a 19.3% stake. Additionally, CNPC shares another 9.65%, while Pré-Sal Petróleo S.A – PPSA represents the Federal Union with a 3.5% interest in non-contracted areas.

About CNOOC Limited

CNOOC Limited is committed to enhancing its position as a global leader in offshore oil and gas exploration, showcasing innovative practices and sustainable development strategies that contribute positively to both the environment and the energy sector.

Frequently Asked Questions

What is the Mero4 Project?

The Mero4 Project is an oil production initiative located in Brazil's Santos Basin, utilizing advanced technology and development methods.

Where is the Mero field located?

The Mero field is situated about 180 kilometers offshore, within the pre-salt region of the Santos Basin in Brazil.

What technologies are being employed in the Mero4 Project?

The project employs intelligent well completion technologies, as well as advanced FPSO and HISEP systems for efficient production and environmental sustainability.

Who are the key stakeholders involved in Mero4 Project?

Key stakeholders include CNOOC Petroleum Brasil Ltda, Petrobras, TotalEnergies, Shell Brasil, CNPC, and Pré-Sal Petróleo S.A. (PPSA).

What are the production capabilities of the FPSO used in Mero4?

The FPSO has a maximum production capacity of 180,000 barrels per day and can process 12 million cubic meters of natural gas daily.

About The Author

Hi there, As a writer and financial specialist, Henry Turner is passionate about guiding people through the complex world of finance. Having worked in finance for many years, I am an expert at simplifying difficult financial ideas into understandable, useful insights for my blog and articles. My goal is to arm you with the confidence and information you need to make wise financial choices.

Writing for a number of financial blogs has allowed me to interact with readers from novice investors looking for fresh ideas to seasoned investors starting their financial journeys. My mission is to enable everyone to understand and access finance, so enabling you to confidently and clearly reach your financial goals. I appreciate you traveling with me toward success and financial literacy.

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