Update on deep discovery in Kazakhstan
Central Asian oil and gas company Roxi, which has a focus on Kazakhstan, has a given an update on the deep discovery at its flagship BNG asset.
The BNG Contract Area is located in the west of Kazakhstan 40 km southeast of Tengiz on the edge of the Mangistau Oblast, covering an area of 1561 km2 of which 1376 km2 has 3D seismic coverage acquired in 2009 and 2010.
Roxi has a 58.41% interest in the BNG Contract Area.
Deep Well A5
Well A5, the first deep well on the BNG Contract Area, with a planned total depth of 4700 m is targeting principally the middle Carboniferous formation at 4390 m of the South Emba sub-basin.
As previously announced oil and gas shows were detected at a depth of 4332 m.
The first core sample over the 12 m range between 4332 and 4344 m has been successfully completed with a 9.85 m core recovered.
Initial examination shows the recovered core of dolomitic limestone and is porous, fissured and filled with oil.
At 4344 m depth a 5 - 10 cm layer of siliceous rock has been encountered.
Future core samples
Roxi's management believes the oil bearing interval extends beyond the 12 m referred to above and is seeking to take further core samples over an additional 18 m between depths of 4347 and 4365 m. Should as the management team expect the 18 m interval show oil, further core samples will be taken until the full extent of the oil bearing intervals are established.
Once the depth of the oil bearing interval has been established testing work will focus on establishing flow rates for the oil encountered.
Further announcements will be made in due course.
Adapted from press release by Cecilia Rehn
Read the article online at: https://www.oilfieldtechnology.com/exploration/06082014/central-asian-oil-and-gas-company-roxi-has-announced-a-deep-discovery-in-kazakhstan/
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