Weatherford successfully installed a 7-in 32-lb/ft 5,000 psi DDV through 9-5/8-in casing landing in open hole. The well had a total depth of 19,613 ft (5,980m) and the DDV was set at 9,236 feet (2816m) to provide pressure isolation. The operation included drilling with 3-1/2-in heavy weight drill pipe and a 6-in bit.
"On this North Sea installation, we were able to provide the operator with an alternative to snubbing, resulting in a safer drilling environment with far less NPT," commented David Pavel, Global Product Manager for the DDV technology. "This milestone, along with many other installations over the past few years, proves that the DDV technology has been accepted as mainstream."
Along with the tool's maturity, there has been an evolution in its capability in direct response to the industry's ever-changing needs and specifications. The result has been the emergence of five different tools, and Weatherford's offering is set to double in the next year, with many additional DDV applications currently in development.
Weatherford is one of the largest global providers of innovative mechanical solutions, technology and services for the drilling and production sectors of the oil and gas industry. Weatherford operates in over 100 countries and employs more than 33,000 people worldwide.
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