Select a local Contact

Lars Harald Norheim

Director Business Development & Sales

Arild Helleren

Region Director, Asia Pacific
Phone: +60 12 304 3681

Arild Helleren

Region Director, Asia Pacific
Phone: +60 12 304 3681

Brett Hrabovsky

Area Manager Oiltools North America
Phone: +1 (281) 785 9222

Nordine Benyahia

Business Development Manager, Angola
Phone: +244 943 254 580

Lars Harald Norheim

Director Business Development & Sales

Bjørn Bærheim

Region Director, Europe & Africa
Phone: + 47 51 30 81 70

Jone Kartevold

Region Director
Phone: + 47 51 30 88 20

Kenneth Bertram

Country Manager
Phone: +44 01224 767677

Stronghold™ Systems

Archer Oiltools Stronghold™ perf wash cement and verify logo

Permanent Caprock Integrity

Archer Oiltools' Stronghold™ systems provide an economical and effective alternative to traditional plug and abandonment (P&A).

Stronghold systems

  • Barricade™: Archer’s field proven Barricade system perforates, washes, and cements the annulus, creating a rock-to-rock barrier in just one trip.
  • Defender™: Archer's field proven barrier test system enables operators to perforate and test annular barrier.
  • Fortify™: Archer's next generation barrier verification system used in plug and abandonment (P&A) and slot recovery. It is a superior system used to verify the integrity of existing annular barriers such as creeping formation and cement, ensuring Permanent Caprock Integrity.
Watch the Barricade video › By eliminating the need for milling, Archer’s Stronghold™ systems deliver a step-change in efficiency and effectiveness for P&A and other technologies. Together with Tubing Conveyed Perforating (TCP) products and new charge development, Archer gives an efficient and safe execution of operations providing time and cost savings for our customers.

SPE paper on P&A

This paper provides an overview of the innovative new abandonment system elements and describes the successful deployment operation in detail. Stokkeland, T. A., McNicol, J., & McWilliam, G. (2017, March 14). Successful Multi-Well Deployment of a New Abandonment System for a Major Operator. Society of Petroleum Engineers. doi:10.2118/184716-MS

Stronghold Barricade Specifications

Size, in 6 5/8 – 7 5/8 9 5/8 – 16
Min ID, in 2.2 2.3
Circulation rate, lpm [bbl/m] 1,600 [10] 2,200 [14]
Pressure rating, psi [bar] 5,000 [344] 5,000 [344]

Related Challenges


A large number of oil and gas assets are coming to the end of their designed life expectancy and need to be decommissioned safely, securely and cost effectively.

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Well Integrity

Well integrity is concerned with the safe and reliable containment of all well fluids throughout the life of a well, including after decommissioning.

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