Max Petroleum logs pay in Kazakh appraisal

Max Petroleum PLC, London, has run production casing in an appraisal well it plans to test in Baichonas West field in Kazakhstan.

The company said it logged hydrocarbon potential in several zones in the BCHW-2, drilled to 1,487 m TVD.

Electric logs indicated 7 m of net pay in Jurassic reservoirs and 5 m of net pay in Triassic reservoirs over a 170-m gross interval that also included 93 m of lower quality Triassic reservoirs possibly amenable to hydraulic fracturing.

The indicated Jurassic pay is in two zones: 1,106-16 m and 1,187-1,201 m. The lower interval correlates with pays in the BCHW-1 well. The reservoir in the upper zone hasn’t been encountered before. Reservoir quality is excellent with porosities of 15-27%, Max said.

The Triassic section, at 1,210-1,380 m, is mostly tight sandstones, all of which appear charged with hydrocarbons. The section Max considers net pay has porosity of 15% or greater. A 33-m section has porosities of 8-15%, and a further 60 m has porosities below 8%. Max plans to test the whole Triassic section.

The company will move the Zhanros ZJ30 rig to drill the SAGW-4 appraisal in Sagiz West field, which is northeast of Baichonas West and also on Block E, east of Atyrau.

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