The JetStream RFID drilling circulation sub enables operators to control downhole circulation with the flexibility to execute multiple tool operations in a single run. Because there is no limit to the number of actuations, a single JetStream sub can be used to open and close downhole tools as many times as needed. And running multiple JetStream subs in tandem—with subs placed at strategic positions along the drillstring—increases functionality and flexibility. Now operators can clean wellbores, spot remediation fluids, and jet BOP stacks in just one run. With no ball seat to create a reduction in ID that would restrict flow rates, the full-bore drilling circulation sub facilitates higher annular velocity.
REAL RESULTS
1.5 DAYS AND $350,000 SAVED
in the Caspian Sea
Weatherford deployed the JetStream sub above a BHA with a conventional underreamer. The driller was able to access tools on the lower end of the BHA to perform multiple operations during the same trip.
By minimizing the number of trips required to complete drilling, the JetStream sub saved the operator 1.5 days of offshore rig time valued at approximately US$350,000.
TOTAL DEPTH ACHIEVED
in a North Sea well
Anticipating the risk of total fluid loss while drilling through a soft, porous formation in a challenging offshore well, the operator deployed a JetStream sub. The fluid loss rate reached 300 bbl/hr (48 m3/hr). The team actuated the JetStream sub 16 times to spot 29 LCM pills.
Precise spotting provided by the JetStream sub enabled the driller to bring the loss rate below 20 bbl/hr
(3 m3/hr) and reach total depth at 14,048 ft (4,282 m).