Weatherford International announced the commercial release of JetStream Radio Frequency Identification (RFID) circulation sub at the 2015 Annual Technical Conference and Exhibition.
Poor wellbore integrity can cause events such as stuck pipe, wellbore collapse, sloughing shales and lost circulation, which are major concerns for drillers in deepwater. The JetStream RFID circulation sub is designed to enable operators to run a series of tools at different positions along the drillstring and remotely actuate the valves an unlimited number of times in a single trip.
"As operators deal with more complex wellbores, the ability to drop an RFID tag from the surface and circulate it through the sub enables our clients to open and close downhole tools multiple times,” said Neil Gordon, vice president of Intervention Services and Drilling Tools at Weatherford.
Recently an operator drilling in the North Sea deployed the JetStream RFID circulation sub in a 6.5in intermediate section that was drilled to total depth of 10,446ft through a soft, porous limestone formation. The JetStream RFID circulation sub was actuated a total of 16 times to spot 29 lost-circulation material pills, which allowed the operator to maintain loss rates below 20 bbl/hr and avoid abandoning the well.
Image:Jetstream RFID Circulating Sub tool/Weatherford
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