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2017

People, Companies and Products

Transocean has reached an agreement with Songa Offshore whereby Transocean will, subject to certain conditions, make a voluntary exchange offer to acquire 100% of the issued and outstanding shares of Songa Offshore. The consideration in the offer will be based upon NOK 47.50 per share of Songa Offshore, representing a 37.0% premium to Songa Offshore’s five-day average closing price of NOK 34.68 per share...

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2016 ISP: Global LTI, recordable incident rates both down, but number of fatalities ticks up slightly

Numbers from the latest IADC Incident Statistics Program (ISP) are encouraging. The ISP, which has tracked safety and accident information for the drilling industry since 1962, shows that the worldwide lost-time incidents (LTI) rate improved by 27.7% from 2015 to 2016, going from 0.18 to 0.13. The recordable incident rate also saw improvement, falling by 23.3% from 0.60 in 2015 to 0.46 in 2016...

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Structured method to collecting equipment data drives consistency in failure reporting, robust analyses

Equipment data is instrumental to understanding equipment reliability and performance, which necessitates developing robust solutions through root cause analyses (RCA) and effective corrective actions. The direct results are operation optimization and equipment reliability improvement. Drilling equipment reliability is the ability of the drilling equipment to perform its function within specified design parameters. By definition, equipment reliability directly affects operational efficiency and effectiveness, which affects the overall cost of ownership of a piece of equipment and the cost of drilling operations...

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Digital transformation

The drilling industry has always been known for having big iron – from drawworks to iron roughnecks, from top drives to blowout preventers. But in today’s digital oilfield, it’s no longer hardware that’s driving the biggest changes at the rig site. Rather, game-changing technologies on the horizon are now almost entirely digital. Predictive analytics, the Internet of things (IoT), machine learning and artificial intelligence are not just buzzwords. They refer to real technologies that are increasingly being adopted into the drilling industry to improve efficiency and reduce costs....

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15K-rated rig modified to meet 20K exploration challenge in Norway

Technical challenges are becoming increasingly frequent as the industry explores the frontiers of offshore drilling. One such recent challenge was the Solaris ultra high-pressure, high-temperature (HPHT) exploration well, operated by Total Norge, on the Norwegian Continental Shelf (NCS). The well was successfully drilled in 2016 by Maersk Drilling’s Mærsk Gallant. The rig, an MSC CJ62-120S design jackup, broke a line of records in the process...

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Mechanization, automation guide innovations in advanced robotic technologies for the drill floor

Different approaches being taken by equipment manufacturers to pave path to truly hands-free drill floor By Linda Hsieh, Managing Editor The word “robot” can mean different things to different people. For many, the word might conjure images from movies or television shows – perhaps Robby the Robot from the 1960s, C-3PO and R2-D2 from the Star Wars films or, more recently, the animated Wall-E. However, at its core, a robot is simply a machine, and in that sense, robots and robotic technologies are not new to the drilling industry. “Technically, iron roughnecks have been robots from the beginning,” said David Reid, Chief Marketing Officer for National Oilwell Varco (NOV). “Simple robotics is telling a machine to do something and leaving ...

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New section milling technology designed for restricted IDs restores access to leached area of cavern in highly abrasive Texas salt dome

The Stratton Ridge salt dome in Brazoria County, Texas, has been used extensively by the industry for brining operations and for the storage of liquid hydrocarbons, refined products and natural gas. The shape of the dome has been defined by several hundred oil and gas wells drilled over the top of this highly anomalous geologic diapir structure. Cavern operations at Stratton Ridge are known to have experienced multiple problems, including severe lost circulation while drilling through cap-rock, sheared well casings, corrosion, shifting and encountering hydrocarbon products that appear to have escaped from the storage cavern...

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Fire on closely spaced six-well pad illustrates heightened need for well control risk mitigation in pad drilling

Efforts to help reduce environmental footprint, infrastructure and development costs have led to an increased use of pad drilling. However, the close proximity of wells in pad drilling increases the risk of more severe consequences during well control incidents. In the case of a burning well, both radiant and direct heat can potentially ignite adjacent wells, threatening both human life and equipment and detrimentally affecting the immediate environment. This article describes challenges and lessons learned from controlling a multiwell pad blowout...

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