Schlumberger and ChevronTexaco set new Gulf of Mexico record for
well depth and pressure
Posted: 16 December 2003
Service delivers real-time well placement in ultra deepwater
Schlumberger Oilfield Services and ChevronTexaco have set new
measurement-while-drilling (MWD) and logging-while-drilling (LWD)
depth and pressure records for the Gulf of Mexico.
These results were recorded while drilling the ChevronTexaco deepwater
Tonga Exploratory Prospect located in Green Canyon Block 727.
True vertical depth of 31,824 feet was reached exceeding the previous
depth record by 700 feet, with a maximum-recorded downhole pressure
of 26,138 psi in the Tonga # 1 well. Schlumberger delivered continuous
real-time surveys, allowing the well trajectory to be kept on target
during the entire drilling and logging process.
“These results are an excellent example of how Schlumberger
and its partners capitalized on technology and our strong working
relationship to advance the exploration frontier,” said Paal
Kibsgaard, president, Drilling & Measurements, Schlumberger
Oilfield Services. “The Schlumberger tools functioned flawlessly
under the extreme conditions of depth and pressure. We were able
to capture and transmit 100 percent of the data in real time, without
lost time or trips, which was critical to the success of this ultra-deep
exploration well.”
Schlumberger used a high-pressure arcVISION675 6 3/4-in. drill
collar resistivity tool and PowerPulse MWD telemetry system to acquire
data while drilling. The high-pressure OBMI Oil-Based MicroImager
tool along with the Xtreme high-pressure, high-temperature well
logging platform were used to complete the formation evaluation
program. Drilling operations for this record-setting well located
in 4,695 feet of water and approximately 150 miles southwest of
New Orleans were conducted from Transocean’s Discoverer Deep
Seas drillship.
About Schlumberger
Schlumberger is a global oilfield and information services company
with major activity in the energy industry.
The company employs 78,000 people of more than 140 nationalities
working in 100 countries and comprises three primary business segments.
Schlumberger Oilfield Services is the world's premier oilfield services
company supplying a wide range of technology services and solutions
to the international oil and gas industry. WesternGeco, jointly
owned with Baker Hughes, is the world's largest and most advanced
surface seismic company.
SchlumbergerSema is a leading supplier of IT consulting, systems
integration, and network and infrastructure services to the energy
industry, as well as to the public sector, telecommunications and
finance markets. In 2002, Schlumberger operating revenue was $13.2
billion. For more information see http://www.slb.com.
Posted by Richard Price,
Editor Pipeline Magazine
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