Encouraging signs for Invictus at Mukuyu well in Zimbabwe |  Rigzone

Encouraging signs for Invictus at Mukuyu well in Zimbabwe | Rigzone

Invictus Vitality is at present drilling on its 80% owned SG 4572 license within the Cabora Bassa Basin in Zimbabwe.

The corporate drilled an 81/2″ gap part to a depth of 10,124 ft reaching excessive mud fuel peaks at 10,072 ft with marked will increase in C1 to C5 compounds (methane, ethane, propane, butanes and pentanes).

“Early indications in our Higher Angwa prime goal are very encouraging and have confirmed a standard working hydrocarbon system within the Cabora Bassa Basin, which is an thrilling growth validating our subsurface mannequin,” mentioned normal supervisor Scott Macmillan.

“The presence of excessive mud fuel readings, fluorescence in cuttings, excessive LWD resistivity and growing backside fuel with depth is a constructive signal as we progress via the Higher Angwa Alternations Member. We nonetheless have a number of hundred meters of drilling via our main targets with further potential, which will probably be adopted by a complete wireline logging program to guage the outcomes, with the purpose of confirming the presence of cellular hydrocarbons in a number of areas.” , did he declare.

Preliminary fluorescence of 100% was additionally noticed in a sandstone downhole cuttings pattern, recovered from a depth of roughly 10,072 ft measured depth, indicating the presence of condensate or mild oil when positioned beneath ultraviolet mild.

Log-while-drilling (LWD) evaluation has recognized additional shallower areas of curiosity in Higher Angwa, with elevated mud fuel readings and LWD resistivity noticed.

Different potential areas of curiosity within the Pebbly Arkose and Forest formations additionally show excessive LWD resistivity. Nevertheless, on account of a number of gear failures of fuel chromatography programs, mud fuel composition knowledge usually are not obtainable at depths lower than about 9250 fMD via the Dande, Forest horizons and nearly all of Pebbly Arkose horizons.

A rise in backside fuel with heavier hydrocarbon parts has been noticed with growing depth for the reason that restore of the slurry fuel chromatography system. All areas of curiosity will probably be comprehensively assessed via a deliberate wireline logging program, which is able to happen as soon as Mukuyu-1 has reached whole depth and can establish any potential sources of hydrocarbons.

Drilling progress to full depth was slower than anticipated on account of difficult circumstances within the Pebbly Arkose, the place a number of loss zones had been encountered, requiring remedial motion to stabilize drilling fluid losses.

Drilling circumstances then improved within the Higher Angwa formation earlier than the downhole drill motor stator failed. This necessitated the alternative of the downhole drill motor earlier than drilling might proceed via the Higher Angwa formation to a deliberate whole depth of roughly 3,500mMD.

Following the downhole motor and drill change, the Exalo 202 rig will resume drilling via the principle targets within the 600 and 650 horizons (member of the Higher Angwa alternations) reaching roughly 11482 fMD.

It’s deliberate to amass a full suite of wireline logging assessments over the complete 81⁄2″ gap part to offer detailed geological data to verify the presence of cellular hydrocarbons.

Mukuyu-1 stays on observe to be delivered throughout the beforehand scheduled timeframe.

To contact the creator, e-mail [email protected]

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