and EG- 11, ExxonMobil’s most recent acquisition in the region
(OGJ Online, June 5, 2017).
Avestruz-1 is adjacent to ExxonMobil’s Zafiro field in Equatorial Guinea’s northern maritime area. Zafiro has produced
more than 1 billion bbl of oil since 1996. In May, ExxonMobil
subsidiary Mobil Equatorial Guinea Inc. let a 5-year contract
to GEPsing to continue operation and maintenance of the Ser-pentina floating production, storage, and offloading vessel on
Zafiro field (OGJ Online, May 12, 2017).
Karoon entices Tullow for offshore Peru well
Karoon Gas Australia Ltd., Melbourne, has sealed a deal to
bring Tullow Oil PLC, London, into its exploration venture offshore Peru.
Tullow Oil will take a 35% interest in Karoon’s Block Z-38
in the Tumbes basin in exchange for funding about 44% of a
wildcat well on the Marina prospect up to a cap of $27.5 million, plus as much as $9 million in cash. The cash component
will comprise $2 million on completion of the farmout and the
balance if and when a commercial discovery is declared. This
makes the overall deal worth as much as $36.5 million.
Karoon’s stake in the permit will drop to 40% while private
firm Pitkin Petroleum PLC holds the remaining 25% interest.
Karoon describes the permit as being at the heart of the
Tumbes basin, which in turn is adjacent to the onshore Talara
basin that has produced 1.7 billion bbl of oil since the 1880s.
The company has identified two prospects—Marina and
Bonito—which together have the potential to hold close to 2
billion bbl of oil. It says the Tumbes basin has a proven working
petroleum system and the work so far suggests the two prospects are accessing the same source rocks as the producing onshore Talara basin fields.
Block Z-38 has been in force majeure since 2014 because Karoon was not able to secure a drilling rig. The Tullow deal seems
set to lift the impasse and give the joint venture 22 months to
complete the required two wells.
Erin Energy targets Miocene off Nigeria, Oyo field
Erin Energy Corp., Houston, expects a 60-day drilling and logging window at its Oyo North West (Oyo-NW) well, which the
company spudded on Dec. 6 on its oil mining lease (OML) 120
block offshore Nigeria.
Oyo-NW is one several drill-ready Miocene prospects on
blocks OML 120 and 121, which are near to many of Niger Delta’s giant fields. Pacific Drilling’s Pacific Bora, a sixth generation
double-hulled drillship, is drilling the Oyo-NW. In June, Erin
Energy reported its intent to extend the rig’s contract for 1-2
wells on Block 120 (OGJ Online, June 12, 2017).
Citing third-party estimates and managerial input, Erin Energy reports 1.1 billion bbl of mean resource for the region’s
In the event of a discovery, Oyo-NW will be tied back to
Erin Energy’s 40,000-b/d Armada Perdana floating production,
storage, and offloading vessel in the company’s Oyo field.
Gazprom Neft drills quadruple multilateral well
Gazprom Neft subsidiary Gazpromneft-Yamal LLC completed
Russia’s first multilateral well with four horizontal cased-hole
sidetracks at Novoportovskoye oil, gas, and condensate field.
Operator Gazpromneft-Yamal drilled a total 6,756 m of
which 4,411 m was in the target zone. Crews completed the
well in 39 days at a rate of 5.78 days/1,000 m.
The horizontal sections increased drainage from disjointed
low-permeability areas, increasing oil recovery and bringing
marginal reserves into development without the need to drill
Novoportovskoye field is the largest oil field on the Yamal
Peninsula. It was discovered during the 1960s but development
was delayed by absence of transport infrastructure and complex geology.
Although 117 exploratory wells were drilled by 1987, proactive development did not begin until after 2010 when Gazprom
transferred the field to Gazprom Neft.
MODEC, partners advance FPSO project off Brazil
Mitsui & Co. Ltd., Mitsui OSK Lines Ltd., Marubeni Corp., and
Mitsui Engineering & Shipbuilding Co. Ltd. agreed to invest
in Sepia MV30 BV, which will provide a floating production,
storage, and offloading vessel in the Sepia area offshore Brazil,
MODEC Inc. said.
MV30 signed a 21-year charter agreement to deploy an FPSO
with Petroleo Brasileiro SA (Petrobras) in a presalt oil field. MODEC established MV30 and retains 20.1% interest while Mitsui
& Co. has 32.4%, Mitsui OSK 20.6%, Marubeni 17.6%, and
Mitsui Engineering 9.3%.
Petrobras operates the Sepia area in Santos basin on Block
BM-S- 24 about 160 miles offshore Rio de Janeiro state in 7,100
ft of water. Galp Energia, through its subsidiary Petrogal Brasil,
has a 20% interest in the block. Total estimated recoverable
volume of Sepia East is 130 million boe.
The FPSO will have the capacity to process 180,000 b/d of
oil and 212 MMcfd of natural gas. Storage capacity is 1.4 million bbl.
Statoil lets umbilicals contract for Johan Castberg
Statoil Petroleum AS has hired Oceaneering International Inc.
to supply umbilicals for the Johan Castberg project offshore
Norway in the Barents Sea.
In late 2017, Statoil ASA submitted a plan for the development and operation of its Johan Castberg project to Norwegian
authorities. Statoil estimated recoverable resources at 450-650
million boe (OGJ Online, Dec. 5, 2017).
The contract is for dynamic and static control umbilicals as
well as associated hardware. The umbilicals will carry hydraulic control fluid and chemicals as well as provide electricity and
fiber-optics needed to monitor subsea wells in 1,312 ft of water.
The umbilicals are expected to be tied back to a floating pro-