Page 30: of Offshore Engineer Magazine (Jan/Feb 2019)
FPSO/FNLG Outlook and Technologies
FEATURE Do wnhole Data xSight gathers data from downhole sensors and sends it to the surface to help intervention specialists.
Source: BHGE wegian North Sea.
“IF YOU SEE A LOT OF VIBRATION, YOU
Baustad sees a new use of the sensors as a means to bridge
CAN MAKE ADJUSTMENTS TO YOUR the upper and lower completions and handle the gauges with-
OPERATIONS. YOU CAN MILL FASTER BY out the need for electric so-called “wet connect” systems. The 50% BY MAKING ADJUSTMENTS BASED ? rst run for that application is expected to occur in 2019 and
ON DOWNHOLE DATA.” would make it possible for the operator to monitor the pres- sure and temperature in both the upper and lower completion – ASHTON DORSETT, through one tool and one interface.
Drilling with the lights on
The casing joint is run and placed in the well, but no sensor Because of the risk pro? le for offshore drilling operations, data is sent at this point. When the reservoir section is drilled drillers seek more and better data about the wellbore to help and completion is complete, a wired node is placed on the pro- ensure safety and mitigate risk. Offshore, faster wells are al- duction tubing, along with a reader system and antenna. The ways welcome, noted Stephen Berkman, NOV’s director of reader is placed at the same depth in the well as the previously global sales support for wellbore technologies, but the speed installed casing antenna. Once the antenna on the production of drilling itself is not the highest priority.
tubing powers up, it powers up the sensor on the outside the “They want accurate information about the condition of the casing via electromagnetic induction. From that point on, wellbore, and the ability to know what’s going on so they can
WiPT can read the pressure and temperature on the outside of take steps to prevent a wellbore incident,” Berkman said.
the casing every second for the life of the well. Wired pipe – speci? cally NOV’s IntelliServ offering – can
The system is connected to a network card in a subsea con- help drive drilling optimization by providing the information trol module, which exchanges HPHT data with the sensors drillers need to make good decisions based on what is actually and surface. going on downhole, he added.
The ? rst was installed in late 2013 and early 2014 for “It’s drilling with the lights on,” he said, something that is
Equinor – then Statoil – in 340 meters of water in the Nor- “irresistible to a number of offshore operators.” 30 OFFSHORE ENGINEER OEDIGITAL.COM 18-31 OE 2019.indd 30 18-31 OE 2019.indd 30 1/21/2019 3:09:43 PM1/21/2019 3:09:43 PM