Calgary, Alberta - Kulczyk Oil Ventures Inc advised that the Lempuyang-1 exploration well in Block L, onshore Brunei Darussalam has reached a final total depth ("TD") of 3,220 metres measured depth from rotary table ("MDRT") (2,817 metres true vertical depth), according to Marketwrire.
The preliminary interpretation of the wireline logs suggests gas charged reservoirs may have been encountered in three target horizons.
The drilling and wireline logging of the Lempuyang-1 well is now complete and a 4.5" liner is being set to total depth in preparation for the 'possible testing of the well.
The TD was set above the original proposed depth of 3,500 metres MDRT because of drilling challenges associated with managing overpressures in the well.
Overpressure was expected and accounted for in the original well design.
However, several significant gas kicks encountered while drilling meant that the design needed to be modified to suit the conditions in the wellbore.
Three of the four target horizons in the wellbore were fully penetrated and assessed by the well. However, only the upper part of the lowest horizon (Green) was intersected.
The preliminary interpretation of the wireline logs indicates possible gas-charged reservoirs at each of the three lowest target horizons.
The Lempuyang prospect comprises five fault blocks with up to five target horizons in each block. A 3-D seismic data acquired in May 2009 indicated seismic amplitude anomalies which appeared to correspond to the target zones. Lempuyang-1 was designed to intersect four of the five seismic horizons.
The operator has advised that they intend to proceed to a testing programme and are optimistic about the commerciality of the prospect.
However, Kulczyk Oil has yet to reach a similar conclusion as it is still reviewing the well data and believes that a decision as to whether or not the Lempuyang prospect can be commercially developed can only be reached after both testing and further drilling.
The partners in Brunei Block L and in the Lempuyang-1 well are Kulczyk Oil Brunei Limited (40 per cent), AED South East Asia Limited (50 per cent) and QAF Brunei Sdn Bhd (10 per cent).
Kulczyk Oil also owns an interest in Block M, the other onshore exploration block in Brunei, through KOV Borneo Limited, an indirect wholly-owned subsidiary of Kulczyk Oil, which has a 36 per cent interest in Block M and in each of the Mawar-1 and Markisa-1 wells.
Kulczyk Oil is an international upstream oil and gas exploration company with a diversified portfolio of projects in Brunei, Syria and Ukraine and with a risk profile ranging from exploration in Brunei and Syria to production and development in Ukraine.
In Brunei, KOV owns working interests in two production sharing agreements which gives the company the right to explore for and produce oil and natural gas from Block L and Block M.
KOV owns a 40 per cent working interest in Block L, a 2,220 square kilometre (550,000 acre) area covering onshore and offshore areas in northern Brunei and a 36 per cent working interest in Block M, a 3,011 square kilometre (744,000 acre) area onshore in southern Brunei. -- Courtesy of Borneo Bulletin
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