American Oil and Gas Reporter - June 2014 - 68
SpecialReport: Offshore & Subsea Technology
Anadarko announced its Lucius discovery in Keathley Canyon
Block 875 in December 2009. Drilled to 20,000 feet in 7,100 feet
of water, it includes more than 200 feet of net pay. Initial production rates exceeded 15,000 barrels a day of 29-gravity oil. The
company expects to complete six wells on the development by
the end of the year, each flowing between 15,000 and 20,000 bbl/d.
water, this is a relatively inexpensive development, so it's much
easier to get over those economic thresholds and push Lucius forward."
To delineate the reservoir's areal extent, Hart says the partners completed an appraisal well in January 2010: an updip sidetrack on the same block, 3,200 feet due south of the discovery.
Anadarko continued to perform reservoir testing as best it could,
given the circumstances at the time, notes Christiansen. "We were
able to drive the process forward, even though there was a moratorium on drilling in place," he says. "There were some approved
actions taken by the project team to keep the project moving forward."
Successful flow tests later confirmed deliverability, and initial production rates exceeded 15,000 barrels a day of 29-gravity API oil. Hart says altogether, six wells are expected to be completed by the end of the year. Completion operations for the third
Lucius well were scheduled to begin during the second quarter,
according to an Anadarko update.
"We expect these wells to flow between 15,000 and 20,000
bbl/d each," Hart affirms, pointing out that subsea manifolds can
accommodate an additional six wells.
"We have the capacity for multiple additional risers, so we can
tie in additional fields, whether those be our fields or those of others," he says. "We think having that hub is a great business model, and we continue to utilize that infrastructure."
Accelerated Decision Making
Once the resource size was determined, Lamey says Anadarko's
internal team and external business relationships accelerated the
decision-making process. "We have all sorts of capabilities in our
tool kit that bring all the experience together," he says. "With that
collective and collaborative experience, we can get to an answer
pretty quickly. What everyone looks for is predictability and reliability. You are working with the same core group and you can
get there pretty quickly."
Experience on previous spar projects led by Anadarko con68 THE AMERICAN OIL & GAS REPORTER
tributed to the exceptional turnaround time, Lamey continues, and
to collective sentiments favoring the company as operator.
"Basically, everyone working on Lucius from Anadarko has
done this multiple times before, so there is a great deal of collective experience," he observes. "I think our project execution
skills are recognized throughout the industry. We started frontend engineering design work on the truss spar to get an estimate
of the capital requirements. In this case, we came to an economic decision pretty quickly, mainly because of the relationships with
companies such as Technip, which built the truss spar hull."
Contracting for long-lead equipment, engineering and steel for
the spar began in midyear 2011, prior to official project sanctioning in December, Lamey relates.
"In anticipation of getting all the commercial agreements in
place for a full sanction by the end of the year and approval by
the board of directors, we saw the opportunity to go ahead with
part of our plan and made an early investment in those critical
pieces of equipment and effort that would get us where we wanted to be, which was having our first oil in the second half of this
year," he says.
Lamey says Technip constructed the massive hull at its yard
in Pori, Finland, while the main topsides were built at Kiewit in
Ingleside, Tx. Major modules, including the living quarters, were
constructed by Beacon in Orange, Tx., and the booster compressor modules were built at Dolphin in Houma, La. Anadarko also
contracted with Aker Solutions for the steel tube umbilicals, and
FMC Technologies is providing subsea trees and valves, he says.
The spar was installed late last year. The topsides and equipment modules-the largest of any Anadarko-operated spar-were
transported successfully from various Gulf of Mexico yards, lifted atop the hull and installed by Heerema Marine Contractors during the first quarter, Lamey recounts. More than 209 miles of new,
20-inch gas export line have been installed from the spar to the
South Timbalier 283 junction platform and onward to the
Larose gas processing plant in southern Louisiana. Lamey says
an additional 100 miles of 18-inch oil pipeline were added and
infrastructure expanded at the South Marsh Island 205 platform,
which connects to various onshore oil markets.
Spar Advantages
Anadarko pioneered spars for deepwater production, beginning with a classic spar called Neptune in 1997, Lamey says. Since
then, he notes, in addition to introducing the truss spar in 2001,
Anadarko implemented the world's only cell spar at Red Hawk
in 2004. The truss spar remains the predominant spar in use to
today, he observes.
"The biggest advantage we see to spar technology is its reliability and predictability regarding deliverability," Lamey says.
"Every spar we have had built has been delivered on time, and
that is significant for projects of this size. We have contracted with
Technip to deliver all our spars. It has been a successful model
for technology and a good partnership approaching two decades
of delivering spar technology to the Gulf of Mexico."
Hart says the hub created by the Lucius spar and others like
it are essential to accommodating the industry's continued
march into the Gulf's deeper waters.
"Lucius is providing infrastructure in a part of the Gulf that
hasn't produced previously," he notes. "So, not only will it be capturing Lucius resources underneath the spar, but it will open ad-
American Oil and Gas Reporter - June 2014
Table of Contents for the Digital Edition of American Oil and Gas Reporter - June 2014
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