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Tenaris deploys HP/HT technology on Total's Culzean project

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Oilfield Technology,


Tenaris has supplied and tested high pressure/ high temperature (HP/HT) technology for Total’s Culzean project.

The Culzean gas field is located in the challenging waters of the North Sea, approximately 145 miles off the coast of Aberdeen. The field began production in June and is anticipated, at peak, to provide 5% of the United Kingdom’s gas demand.

Tenaris supplied TenarisHydril Blue® Max and TenarisHydril Blue® Heavy Wall connections, and Dopeless® technology for the project’s complex wells in water depths of 90 m to production zones located approximately 4500 m below the sea level with bottom hole pressure of 13 500 psi and bottom hole temperatures of 180 °C.

“This was an incredible undertaking in extreme downhole conditions of high pressure and threat of corrosion. We achieved amazing results, carrying out industry-first testing for our products, proving the robustness of our technology, minimising risks, ensuring reliability and optimising performance, said Gabriel Podskubka, Tenaris President, Eastern Hemisphere.

To enhance running times, the Culzean team opted to run double stands. The running of 2200 joints of TenarisHydril Blue Max and Blue Heavy Wall Dopeless connections, with each double joint weighing up to 4.25 t, was a success, with 99.6% of the connections torqued to the required value on the first make up.

The use of Tenaris’s dry, multifunctional coating, Dopeless technology, further enhanced the stand’s robustness in make up, while offering the customer the environmental and safety benefits the product offers due to the absence of compound, making for a cleaner rig site, as well as generating total pipe cost savings.

To manage the rigorous technical product specifications required and delivery dates, Tenaris also provided its logistics solution based Rig Direct® services, strategically coordinating manufacturing and testing with its local and global teams. Expert services included technical consulting, pipe management, as well as a dedicated field services expert at the rig site to support running operations.

Tenaris was first awarded the long-term contract to supply pipe casing and related services for Culzean in 2015 from Maersk Oil, which was acquired by Total in 2018.

Read the article online at: https://www.oilfieldtechnology.com/product-news/06082019/tenaris-deploys-hpht-technology-on-totals-culzean-project/

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