Page 9 - LatAmOil Week 34 2021

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ExxonMobil has said previously that Tanager-1
does not contain enough crude oil to justify
stand-alone commercial development. How-
ever, it is also looking to extend efforts to analyse
reservoir fluids from the high-quality reservoirs
encountered in the well’s deeper Santonian and
Turanian plays.
Additionally, it is keen to examine options
for commercialising the oil it encountered in
the first well – the “16 metres of net oil pay (20
degrees API oil) in high-quality sandstone res-
ervoirs of Maastrichtian age and confirming the
extension of the Cretaceous petroleum system
and the Liza play fairway outboard from the pro-
lific discoveries on the neighbouring ExxonMo-
bil-operated Stabroek block,” Westmount said.
According to a post-well competent persons
report (CPR) published by Netherlands, Sewell Kaieteur lies to the north of the Stabroek block (Image: Westmount Energy)
& Associates Inc. (NSAI) in February, the Maas-
trichtian reservoirs found in Tanager-1 contain split between subsidiaries of ExxonMobil, the
a “best estimate” unrisked gross (2C) contingent operator, with 35%; Ratio Petroleum (Israel),
oil resource of 65.3mn barrels, with estimates with 25%; Cataleya Energy (Canada), with 20%;
ranging from 17.7mn barrels to 131mn barrels. and Hess Corp. (US), with 20%. Cataleya Energy
This puts the best estimate for unrisked net (2C) used to have a 25% stake in the project, but it
contingent oil resources at the Kaieteur Block at has sold 5% to Hess. Westmount is an indirect
42.7mn barrels, or between 11.3mn and 86mn shareholder in Kaieteur through its 5.3% stake
barrels. in Cataleya Energy’s parent company and its
Equity in the Kaieteur project is currently 0.04% stake in Ratio Petroleum. ™

CGX, Frontera spud Kawa-1 at Corentyne

CGX Energy and Frontera Energy, both based in
Canada, have spudded the Kawa-1 exploration
well at the Corentyne block offshore Guyana.
The joint venture partners announced this
development in a statement dated August 23.
They reported that drilling had begun on August
22 and said they expected Kawa-1 to reach its
anticipated total depth of 6,685 metres in the
first half of December.
The well is being drilled around 200 km from
shore in 355-metre-deep water. It will examine
a primary target, “a Santonian sand with updip
and lateral pinchout of the reservoir, as well as
counter-regional dip and structural closure”, as
well as secondary targets “in a shallower Campa-
nian sand and a deeper Santonian sand with the The Maersk Discoverer rig will drill a second well (Photo: Maersk Drilling)
expectation of targeting additional hydrocarbon
potential,” the statement noted. geometries, as well as stacked reservoirs. “Prox-
It went on to say that CGX and Frontera imity of the Corentyne block to the Cretaceous
hoped to find light crude oil in the target lay- Berbice Canyon sediment source is interpreted
ers. The partners hope that Kawa-1 will prove to have concentrated sandstone reservoirs in
to be analogous to an area located immediately the North Corentyne area,” they commented.
to the east – namely, the western central section “Channelised, stacked internal fan geometries
of Block 58 offshore Suriname, where TotalEn- evident on 3D seismic are indicative of thick,
ergies (France) and Apache (US) have already stacked, coarser-grained sand reservoirs.”
made four commercial oil discoveries. In related news, CGX and Frontera said in
In the statement, the two companies said the same statement that they had exercised their
they expected the Kawa-1 exploration well option to use the Maersk Discoverer, a drillship
to help them de-risk several other prospects owned by Maersk Drilling (Denmark), to sink
within Corentyne that have similar structural a second well.

Week 34 26•August•2021 www. NEWSBASE .com P9