American Oil and Gas Reporter - April 2018 - 122

Located in in 6,800 feet of water in Keathley Canyon blocks 785, 828, 829, 830, 871 and
872, Buckskin is estimated to contain 5 billion barrels of oil equivalent reserves. The
reservoir ranges from 26,000 to 28,000 feet in true vertical depth, and LLOG estimates
the hydrocarbon column height could be in excess of 2,000 feet. Ultimately, LLOG expects to drill up to eight wells in the field's northern fault block and as many as six in
the southern fault block.

LLOG tested frac fluid gels to make
sure they could carry the amount of proppant needed, Wood goes on. The company
has the potential to put 1 million pounds
of proppant into each of the three completed zones.
"So carrying that fluid is critical, and
so is the weight and the viscosity of the
fluid that propels the proppant," Wood
explains. "Another key variable has been
testing the strength of the proppant and
its ability to maintain its shape. If it becomes deformed or creates debris, the
screen will become clogged."
LLOG has been lucky enough to avoid
what Fowler sees as a future challenge in
many Lower Tertiary developments: the
need for 20K systems to allow drilling,
completions and production in reservoirs
with pressures of 20,000 pounds per
square inch at the mudline. "To date,
20K technology has never been used,
nor has it been approved for use, in the

Multiple-Field Development Program
In addition to Buckskin and its anticipated 2019 startup, LLOG Exploration
is working to achieve first production
on a series of five additional operated
deepwater Gulf of Mexico development
projects by the end of 2018.
LLOG President and Chief Executive
Officer Scott Gutterman says all five developments are part of the company's
successful exploration programs in 2016
and 2017, and include a total of nine new
deepwater wells. "These discoveries have
been appraised by multiple wells and
sidetracks. With the majority of completion
operations soon to be concluded for these
discoveries, we are quickly turning these
multiple exploratory drilling successes
into production," Gutterman reports.
"Our strategy of generating deepwater
prospects in areas of proven success and
near existing infrastructure that can be
drilled, developed and placed on production using our standardized approach to
development allows us to generate strong
returns in the current price environment,"
Gutterman adds. "We remain committed
and enthusiastic about the deepwater
Gulf, where we have an inventory of
more than 40 identified exploratory
prospects to drill and develop."
LLOG's ongoing development program includes:
* The Claiborne project in 1,500 feet
of water in Mississippi Canyon 794. LLOG
drilled the discovery well in 2015 and a
successful appraisal well in late 2016 to a
122 THE AMERICAN OIL & GAS REPORTER

total depth of 24,000 feet, targeting multiple
subsalt, oil-bearing Miocene sands. Both
wells have been completed and are being
tied-back to the Walter Oil & Gas-operated
Coelacanth platform on Ewing Bank 834.
First production is expected this summer.
LLOG's partners in Claiborne are entities
managed by Ridgewood Energy, Red Willow Offshore LLC, CL&F Offshore LLC
and Beacon Offshore Energy.
* The LaFemme and Blue Wing
Olive discoveries in Mississippi Canyon
427/471. LaFemme, in 5,800 feet of water
in Mississippi Canyon 427, was drilled
to 13,000 feet TD targeting multiple
Upper Miocene reservoirs. The discovery
well was drilled in mid-2016 and encountered more than 175 feet of net oil
pay. A successful appraisal well was
drilled in late 2016. Both wells have been
completed and will be co-developed with
the Blue Wing Olive discovery and tied
back to the LLOG-operated Delta House
facility at Mississippi Canyon 254. The
Blue Wing Olive discovery well, also in
5,800 feet of water, was drilled to a
17,000 feet TD in late 2016 and encountered multiple Upper Miocene zones. The
well has been completed in two oil and
natural gas reservoirs, with first production
expected this summer. LLOG's partners
in both LaFemme and Blue Wing Olive
are Beacon Offshore Energy, Red Willow
Offshore, entities managed by Ridgewood
Energy, and Houston Energy.
* Red Zinger in 6,000 feet of water

at Mississippi Canyon 257. The discovery
well was drilled in 2016 to 19,000 feet
TD and found multiple Upper Middle
Miocene targets. Red Zinger also will
be tied back to Delta House, with production expected in the second half of
2018. LLOG's partners in Red Zinger
are Beacon Offshore Energy, Red Willow
Offshore, and entities managed by Ridgewood Energy.
* Marmalard East in 5,300 feet of
water at Mississippi Canyon 301. The
field-extension well was drilled and
completed by LLOG in the second quarter of 2017. The well was drilled to
18,000 feet TD and encountered more
than 50 feet of net oil pay in Miocene
sands. The well has been brought onto
production through the Marmalard subsea
infrastructure system to the Delta House
facility at a rate in excess of 12,000
bbl/d. LLOG's partners are Red Willow
Offshore and Calypso Exploration.
* Crown and Anchor in 4,200 feet
of water at Viosca Knoll 959, 960, 1003
and 1004. LLOG drilled the two-well
discovery in 2015 to 14,000 feet TD
targeting multiple Upper Miocene sands.
Both wells have been completed and
will be tied back to the Anadarko-operated Marlin facility in Viosca Knoll 871
and 915. First production is expected in
the second quarter of 2018. LLOG's
partners in Crown and Anchor are Beacon
Offshore Energy and entities managed
by Ridgewood Energy.
r



American Oil and Gas Reporter - April 2018

Table of Contents for the Digital Edition of American Oil and Gas Reporter - April 2018

Contents
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