BNK Petroleum, an international oil and gas exploration company, has declared that the Miszewo T-1 well, which is located on the Trzebielino Concession in Poland, has been drilled to a depth of about 4,840 m, which represents the lower section of the Middle Silurian formation. Indiana Investments., a wholly owned subsidiary of BNK Petroleum, holds the Trzebielino Concession.
The total depth was attained in about 35 days. The lower section of the Silurian formation at this drill site has thickened to some extent and hence the projected required total depth of the well has grown to about 5,150 m. Additionally, the Ministry of the Environment needs to sanction the work so that drilling can be continued to achieve the new projected total depth. This is also subject to Indiana Investments receiving an Environmental Decision. For the time being, the Miszewo T-1 well has been postponed in view of the awaiting receipt of the Environmental Decision. The drilling rig will be shifted to the Gapowo B-1 site, wherein the Ordovician shale is likely to be intersected at 4,200 m.
Furthermore, if a positive Environmental Decision is not received, the Miszewo T-1 well will be postponed until the Environmental Impact Assessment is completed. This assessment is ongoing and expected to conclude in the Q3 of 2012. Upon receiving necessary approvals, the drilling rig will shift back to the Miszewo T-1 well to assess the Alum, Ordovician and the lower Silurian.
Based on drilling samples, it indicates that the Miszewo T-1 well has intersected darker Middle Silurian shales when compared to those intersected in the basin’s other wells.
Gas show readings from Middle Silurian shale in the Miszewo T-1 well were nearly four times greater than those intersected in the similar interval in the Lebork S-1 well. Mainly methane gas was seen on the mud log with trace quantities of heavier hydrocarbons and ethane. This suggests that the Miszewo T-1 well is in the dry gas window. Moreover, it indicates that this interval is interladen with organic rich shales. Higher gas readings and darker shales signify that the Miszewo T-1 well lies in an organically rich section of the Baltic basin.
Source: http://www.bnkpetroleum.com/