ann oil at 130bbl per day

DRILLING ACTIVITY ANNOUNCEMENT – FLOWS FROM MAILISU III #1
Weekly Activity
.
Despite the cold weather, completion work continued on the COG Mailisu III # 1 well, located on the southern edge of Caspian’s Ashvaz licence. While oil was recovered from Bed VIIa interval on perforation, acidising of the zone failed to enhance productivity. The lower Bed VIIb was then perforated but no fluids flowed in to the wellbore. It is interpreted that the zone is either very tight or has significant damage from drilling. Rather than continue on with the secondary objectives, a drillable plug was set above Bed VIIa to isolate the lower zones from the more prospective Bed V. Bed V was perforated and treated with acid (300litres, 22% HCl) and significant oil was recovered during the circulation of the reaction product, suggesting that the acid job was successful. The well was opened up and flowed to surface at an initial rate (oil, completion fluids/spent acid and water?) of around 20m3/day (~ 130bbl/day) before shutting the well in. A 25m3 tank will be placed on site to enable further testing to establish long-term productivity and fluid content.
Given the forecast for warmer weather over the next few weeks, preparations are being made to recommence drilling at COG Mailisu III #3. This well is designed to further test oil targets in the Palaeogene limestone reservoirs and is Caspian’s third in its planned eleven well drilling programme in the northern Fergana Basin, Kyrgyz Republic.