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Electric roller screw-activated choke delivers quick, accurate response when installed in manifold

Many existing hydraulic and electric chokes used to control surface backpressure during managed pressure drilling (MPD) weren’t specifically designed for use in MPD operations. Tolomatic set out to design a choke that would deliver a quick and accurate response in the face of changing pressure demands encountered during MPD operations. In this video from the 2018 SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference on 18 April in New Orleans, La., Ryan Klemetson, Business Development Manager for Tolomatic, explains the drivers for developing ServoChoke, an electric roller screw-activated choke, and how it works. He also discusses the company’s collaboration with Pruitt Optimal to build the choke into Pruitt’s manifold, as well as the results observed when the manifold was deployed...

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Condition monitoring system under development to predict wellbore seal failures

Often, operators aren’t aware that a wellbore seal needs to be replaced until a leak or loss of pressure occurs. AFGlobal is developing and testing a condition monitoring program for seals in an active wellbore sealing device to determine when a seal is nearing the end of its useful life before any leaks or pressure losses occur, leaving hours to spare before a change is required...

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Operators, contractors must work together to define MPD-readiness, boost adoption of MPD

Over the years, operators have increasingly turned to managed pressure drilling (MPD) not only to manage narrow pressure windows but also to enhance kick detection and save rig time. During this downturn, in order to stand out from the competition, drilling contractors began outfitting more of their rigs with the equipment needed for MPD, Ben Pomford, Head of Drilling Solutions for Maersk Drilling, said at the 2018 SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference in New Orleans on 17 April. In this interview with DC at the conference, he explains that while there’s an eagerness to make rigs MPD-ready, there’s also a lack of consensus on what exactly “MPD-ready” means. He also discusses how operators and contractors can come together through groups like the IADC UBO/MPD Committee to harmonize conflicting viewpoints on what constitutes MPD-ready and further drive MPD adoption...

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Noble Drilling looks to ‘traveling MPD package’ to prepare multiple rigs for MPD

Operators are increasingly looking to their drilling contractors to supply the bulk or entirety of a drilling rig’s managed pressure drilling (MPD) package. However, outfitting a rig – much less a whole fleet – with such equipment can be cost prohibitive, especially in the current dayrate environment, Jason Custer, Mechanical Engineer at Noble Drilling, said at the 2018 SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference in New Orleans, La., on 17 April. Other challenges Noble is addressing include training the rig crew to operate and maintain MPD equipment, as well as managing additional third-party personnel on the rig...

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IADC UBO/MPD Committee to finalize training curriculum, establish categories for MPD-readiness

This year, IADC’s committee for Managed Pressure Drilling (MPD) and Underbalanced Operations (UBO) will continue its work on API recommended practices 92M and 92P. The former pertains to MPD with surface backpressure, while the latter relates to pressurized mudcap operations with a subsea BOP. Committee Chairman Andre Alonso Fernandes, Technical Advisor at Petrobras, provided an update on this work, as well as other projects the committee is pursuing, on 18 April at the 2018 SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference in New Orleans, La. In this interview from the conference, Mr Fernandes discusses the committee’s ongoing work, as well as efforts to develop an MPD training curriculum and to define the readiness of different drilling rigs for MPD functions...

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IADC North Sea Chapter names Annual Safety Award winners

The IADC North Sea Chapter (NSC) recognized several companies for their safety performance on 20 April at the chapter’s Annual Safety Awards Ceremony in Aberdeen. The award for best safety performance in jackups went to Ensco (over 1 million mahours) and to North Atlantic Drilling (under 1 million manhours). Transocean was the winner in the category of floating rigs with over 1 million manhours and Diamond Offshore in the under 1 million manhours category. The winner for platform drilling was Odfjell Drilling...

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Shell invests in Vito development in Gulf of Mexico

Shell Offshore, a subsidiary of Royal Dutch Shell, announced the final investment decision for Vito, a deepwater development in the US Gulf of Mexico with a forward-looking, breakeven price estimated to be less than $35 bbl. This decision sets in motion the construction and fabrication of a new, simplified host design and subsea infrastructure...

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