Expro celebrates 40 years in the subsea sector

From the creation of its first 10 ksi subsea test tree assembly (SSTTA) for an exploration and appraisal well project for Hamilton Brothers in the North Sea in 1983, to the development of its high debris 15K shear and seal ball valve technology in 2023, Expro has remained a key presence in subsea landing string technologies.

Expro has undertaken more than 3000 subsea deployments in exploration and appraisal, completion, and intervention applications.

Alongside the development of the 3 in.10 ksi SSTA in 1983, some of the other subsea well access major milestones for Expro over 40 years include:

• 1995 – introduction of the first 7 3/8 in. 10ksi horizontal tree completion landing string system, which supported the growth of the horizontal tree market, in the Norwegian North Sea.
• 1999 – launch of the industry’s first 6 ¾ in. high debris SSTTA system, in the Norwegian North Sea.
• 2003 – launch of the first large bore 6 ¾ in. 10 ksi subsea electro-hydraulic control system, in the Gulf of Mexico.
• 2005 – first 6 ¾ in. 10ksi dual bore and mono-bore subsea test tree offshore North Sea and Angola.
• 2007 – first 15ksi 6 1/8 in. horizontal tree SSTTA and electro-hydraulic control system in the Gulf of Mexico.
• 2017 – development of 7 3/8 in. 10 ksi high debris SSTTA.

The evolution of subsea test tree assemblies has allowed Expro to expand into the open water well intervention market through the introduction of both riser-based and riser-less well intervention solutions.

Expro’s dedication to subsea well access application has recently led to the company being named Intervention Champion of the Year at the OWI Global Awards 2023.

Read the article online at: https://www.oilfieldtechnology.com/offshore-and-subsea/03012024/expro-celebrates-40-years-in-the-subsea-sector/