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Russian firm relies on US wells construction tools

20th September 2012

Tatneft is implementing new annulus swelling packers from Tam International for wells construction

Russian firm relies on US wells construction tools
Annulus swelling packers acquire the diameter of the open hole and allow for zonal isolation, thus preventing fluid loss in wells

A Russian oil firm has employed US well technology capable of withstanding temperatures of up to 302˚C, it emerged on Wednesday.

Tatneft is in the process of applying elastomer annulus swelling packers from Houston-based independent oilfield service company TAM International, the Russian firm said in a press release on Wednesday.

The packers, called Casing Annulus Packers (CAP) are used for zonal isolation of wells of all categories, according to Tatneft. They are capable of swelling at temperatures of up to 302˚C and withstanding a differential pressure of up to 62 MPa, the company added.

Inflatable packers swell when in contact with hydrocarbon or water-based fluids. They acquire the diameter of the open hole and allow for zonal isolation, thus preventing fluid loss in wells.

Some 40 production strings equipped with TAM swelling packers were applied in Tatneft’s wells in 2011, according to the firm. Tatneft is Russia’s largest oil company by production and it claims its 2010 proved oil reserves amounted to 862.2 million tons.

 

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