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BP Drops one, Chevron Maintains Count in the Angolan Fleet

British oil major BP dropped one rig from its Angolan fleet, to two rigs whereas Chevron’s  count remains flat, at five, in the January 2016 Angolan Rig Count compiled by Africa Oil+Gas Report.

The total number of rigs active in the country dropped to 17 in January 2016 from 18 in December 2015.

ExxonMobil, TOTAL and ENI were also busy with the drill bit.

Full details are available in the Volume 17, No 1, 2016 of the Africa Oil+Gas Report


Multi-Client Seismic Survey Planned For ‘Equatorial Transform’

Geoex International plans a two dimensional (2D) multi-client seismic data acquisition along the transform margin of Ghana, Togo and Benin.

It is the first phase of a larger regional programme, that would tie in to similar programmes in Nigeria and the conjugate margin of South America.

Data acquisition is expected to commence in the latter part of the first quarter of 2016, with Pre- Stack Time Migration data targeted for delivery in August and Pre-Stack Depth Migration data targeted for delivery in December.

The African equatorial transform margin has proven to be an exciting exploration province over the last decade with the Upper Cretaceous deep water fan play in Ghana, so far proving the most successful part of the system, according to Robertson Safi, Managing Director of Ghana Geophysical Company Limited, a partner in the project. ‘”Yet along with the successes have come a number of high profile failures, which have highlighted the need to fully understand the petroleum systems from basin architecture through to reservoir development and migration and trapping mechanisms.”

The Ghanaian portion of the offshore survey is about 6,000 km, for which Geoex, in conjunction with Ghana Geophysical Company and other partners, signed an agreement with Petroleum Commission- the State’s regulatory body and concessionaire. “The data would be interpreted in the broader context to allow geoscientists to evaluate both sides of the margin as it evolved and to identify other potential petroleum systems offshore Ghana”, Safi explains.

“This is the first Reconnaissance License that the (Ghana) Petroleum Commission (the industry regulator) has signed since its establishment”, notes Theophilus  Ahwireng, Chief Executive Officer (CEO) of the Commission.  “This strategic project will include the acquisition of long offset, long record 2D regional seismic data that will be migrated to depth and integrated with available offshore well data to calibrate key stratigraphic horizons and ties in major discoveries in the area to provide the regional context and enable a full evaluation of petroleum plays.”


Tullow Encounters “The Best Quality Reservoir” in Kenya’s Most Prolific Basin

By Sully Manope, in Nairobi

Etom 2’s the most northerly well in South Lokichar.. opens a new fairway

Irish independent Tullow Oil says the 102 Metre net pay in two columns it encountered in Etom 2, “confirms a new potential exploration fairway in the northern portion of the Lokichar Basin”.

The well was consequent on the interpretation of a 247 km2 three dimensional (3D) seismic data acquired over the Etom area (Block 13ST) earlier in 2015; Etom-2 was not even a part of the proposed 2015 drilling set out in late 2014. But the new data identified the prospect on the north flank of the Etom structure in an untested fault block

In the event, the stars are all aligned for this new find:  “Oil samples, sidewall cores and wire line logging all indicate the presence of high API oil in the best quality reservoir encountered in the South Lokichar Basin to date,” the company explains. Tullow says additional prospectivity identified on the 3D seismic in the Etom Field area and in the northern portion of the basin, including the Erut and Elim prospects, will now be considered as part of the future exploration drilling programme.

“Discovering this thick interval of high quality oil reservoirs further underpins the development options and resource base. The result demonstrates how we have improved our understanding of the South Lokichar Basin,” says Angus McCoss, Tullow Oil’s Exploration Director.

“This discovery confirms a new potential exploration fairway in the northern portion of the Lokichar Basin.  This result also suggests significant potential in this under explored part of the block as it is the most northerly well drilled in South Lokichar and is located close to the axis of the basin away from the basin-bounding fault.

The PR Marriott Rig-46 drilled the Etom-2 well to a final depth of 1,655 metres and will now move to Block 12A where it will spud the Cheptuket-1 well around year end, the first well to be drilled in the Kerio Valley Basin.


Sterling Will Finalise Ambilobe’s Early 3D Interpretation In Q1 2016

London listed Sterling Energy has completed a three dimensional (3D) seismic survey of approximately 1100 km²

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Angolan Rig Count Drops

The number of rigs actively drilling on locations in Angola has fallen to 18 in November, from 22 in September 2015, according to the November 2015 edition of the Africa Oil + Gas Report.

Chevron and TOTAL have dropped one rig each, while ExxonMobil increased its rig count by 1. Cobalt has finished drilling on Block 21 and released the rig. ENI retains the two rigs it had last September.

The busiest company at the drill bit remains Chevron.

Full details of who is drilling what and where in Angola is available to paying subscribers of the monthly edition of the Africa Oil + Gas Report.


Shell Encounters Two Deeper Pool Gas Sands In Kolo Creek

LDShell Petroleum Development Company(SPDC) encountered two new gas sands at depth deeper than ever drilled in the Kolo Creek field. The well is Kolo Creek (KC) 41.

The sands were reached after tough drilling conditions in severely pressured zones. Shell is using the Chinese built High Pressure, High Temperature rig Hilong-27, to drill for deep gas sands in eastern Nigeria. It encountered such deeper gas sands in Gbaran-26 earlier in the year.
In Kolo Creek 40, Shell drilled through a previously discovered gas zone, which it found to be better developed in the well.

It did not encounter any new gas sand. In Kolo Creek 41, however, it drilled deeper, taking care of pore pressure and mud system issues, to arrive at two deeper gas sands. Sources at the department of petroleum resources (DPR), the country’s regulatory agency, would not disclose the depth of the new finds.


Italian Explorer Hits A New Pay Dirt In The Congo

ENI made a new discovery of gas and condensates offshore Congo, in the exploration prospect of Nkala Marine, located in Marine XII block, about 20 kilometers from the coast and 3 kilometers from the Nene Marine field, already in production.

The finding, realized through the Nkala Marine 1 well, is expected to have a potential of 250-350million barrels of oil equivalent in place.

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West Africa Is Seadrill’s Crown Jewel

 ‘Nothing To Do With Elumelu’

Seadrill has nine rigs in contract in the waters off the coast of West Africa, the highest number in any single region.  It is 18% of the company’s total fleet of 50.

South east Asia comes next with eight rigs deployed, while the North Sea, which is offshore Norway and UK, are utilizing seven Seadrill rigs. TSaudi Arabia and Kuwait, which represent the entire middle east, host six Seadrill rigs. The UK based company has 15 rigs under construction.

Most of the Seadrill rigs in the West African waters are drillships (six), and they are almost all in Angola (3) and Nigeria (4).

West Polaris is in action for ExxonMobil in the Kizombo Satellite development in Angola’s prolific Block 15. TOTAL is using the West Gemini to drill wells in that country’s Block 17. The Jack UpWest Tucana works for Chevron in the shallow water Block O.

In Nigeria, TOTAL is using  the drillship West Jupiter for Egina development; the deepwater field is expected to come onstream in 2017 and expected to ramp up to 200,000BOPD. ExxonMobil, again, has two Seadrill drillships offshore Nigeria. West Capella is drilling Usan, while West Saturn is drilling Erha; the contracts are on until April 2017 and December 2016 respectively.

Subscribers to Africa Oil+Gas Report have enquired whether Seadrill’s ‘fortune’ in Nigeria has to do with the influence of the chairman of its local subsidiary, the business Tycoon Tony Elumelu. Our investigations indicate the contrary.  ExxonMobil’s deployment of four Seadrill rigs in the two largest oil producers in Africa is a result of the company’s “global understanding” with Seadrill in Houston, the global headquarters of the hydrocarbon industry.

The deepwater market will be tighter in Nigeria in the coming years; now that the second phases of the big fields: Bonga, Erha and Agbami are being drilled out. The next developments: Bonga South West Aparo (BSWAP), Ugie and Etan- Zabazaba, are smaller fields, which will be drained without requirements of long tenures for rigs.


In Cameroon, The Cheetah Cheated

The Cheetah-1, exploration well offshore Cameroon, has been plugged and abandoned for lack of commercial deposits of oil and gas.

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Conoil Hits a Large Pay dirt in the Southeast Offshore

Fred Akanni, Editor

Nigerian independent Conoil Producing has encountered over 320 feet of net hydrocarbon sands in about eight levels in Anim-1, in the Oil Prospecting Lease (OPL) 290, in the prolific south east shallow offshore Niger Delta.

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