Perenco Congo completes five infill wells in the offshore oil field of Congo (Brazzaville)

Perenco Congo recently completed drilling five infill wells in the offshore Tchibouela East field in Congo (Brazzaville), increasing daily crude oil production by 6,000 barrels. The campaign concluded at the end of 2025, utilizing offshore drilling techniques such as horizontal wells and U-shaped wells, which enhanced oil recovery while reducing operational risks.

The Tchibouela East field has been in production for nearly three decades. Grégoire de Courcelles, Managing Director of Perenco Congo, commented: “Tchibouela East has been producing for nearly 30 years, and we are delighted to help ensure that this field continues to produce for many years to come.”

Based on the positive results from the Tchibouela East field, Perenco Congo has launched a new five-well drilling campaign at the Masseko field. This campaign aims to further increase production while testing a new geological horizon to assess the resource potential of deeper reservoirs. Grégoire de Courcelles added: "The operational rhythm continues, and we are now drilling at the Masseko field, where initial production results are encouraging."

Perenco has long been committed to mature oil and gas assets in Africa and other regions, extending the production life of old fields through drilling technology and meticulous management. In 2025, Perenco's daily production in Congo was approximately 72,500 barrels of oil equivalent.

The extraction of oil and natural gas cannot be achieved without separation equipment.

Shanghai SAGA Offshore Engineering Co., Ltd., established in Shanghai in 2016, is a modern technology enterprise integrating R&D, design, production, and service. We are dedicated to developing separation and filtration equipment for the oil, gas, and petrochemical industries. Our high-efficiency product portfolio includes de-oiling/dewatering hydrocyclones, desanders for micron-sized particles, and compact flotation units. We provide complete skid-mounted solutions and also offer third-party equipment retrofitting and after-sales services. Holding multiple proprietary patents and operating under a DNV-GL certified ISO-9001, ISO-14001, and ISO-45001 management system, we deliver optimized process solutions, precise product design, strict adherence to engineering specifications, and ongoing operational support.

Our high-efficiency cyclone desanders, renowned for their exceptional 98% separation rate, have earned recognition from international energy leaders. Constructed with advanced wear-resistant ceramics, these units achieve 98% removal of particles as fine as 0.5 microns in gas streams. This capability enables the reinjection of produced gas for miscible flooding in low-permeability reservoirs, a key solution for enhancing oil recovery in challenging formations. Alternatively, they can treat produced water, removing 98% of particles larger than 2 microns for direct reinjection, thereby boosting water-flood efficiency while minimizing environmental impact.

Our new product—The High Efficiency Ultra-Fine Particle Desander is a liquid-solid separation device that utilizes an efficient centrifugal principle to separate suspended impurities—such as solids in produced water, seawater, condensate, fine particles in high-viscosity liquids, and catalyst powder in reactors—from fluids (liquids, gases, or gas-liquid mixtures). It effectively removes solid particles with sizes down to 2 microns (at 98% efficiency) or smaller.

The High Efficiency Ultra-Fine Particle Desanderdelivers high sand removal efficiency, capable of removing solid particles down to 2 microns. The equipment features a compact footprint, requires no external power or chemical additives, and has a service life of approximately 20 years. It offers online sand discharge capability without the need for production shutdown.

Proven in major global fields operated by CNOOC, CNPC, Petronas, and others across Southeast Asia, SAGA desanders are deployed on wellhead and production platforms. They provide reliable solids removal from gas, well fluids, and condensate, and are critical for seawater purification, production stream protection, and water injection/flooding programs.

Beyond desanders, SAGA offers a portfolio of acclaimed separation technologies. Our product line includes membrane systems for natural gas CO₂ removal, deoiling hydrocyclones, high-performance compact flotation units (CFUs), shale gas desanding, Cyclonic dewatering package with produced water treatment, and multi-chamber hydrocyclones, delivering comprehensive solutions for the industry's toughest challenges.