Kulczyk Oil Ventures announced that preliminary results from analysis of drilling data and interpretation of wire line logs from the Lukut-1 well on Brunei Block L indicates a number of potential hydrocarbon-bearing zones. Consequently, KOV and its joint venture partners (the "JV Partners") have decided to proceed with a testing program.
The Lukut-1 well, which commenced drilling on May 2, 2010, had an initial target depth of 2,150 metres. The well was designed to test the hydrocarbon potential of a structural feature defined by 3D seismic shot by KOV and its joint venture partners in 2009.
The well reached the target depth of 2,150 metres on May 31, 2010 and, as elevated gas readings were reported in the drilling mud, the JV Partners elected to deepen the well to 2,230 metres to facilitate assessment of a zone of interest between 2,130 metres and 2,210 metres before carrying out the wire line logging program.
Preliminary analysis of data acquired from the gas logs which evaluated the hydrocarbon content of the drilling fluid during the drilling operation showed a continual increase in gas content with indications of C1 to C5 over the interval from 1,745 metres to 2,230 metres. Gas shows were noted at 1,745 metres, 1,945 metres and from 2,150 metres to 2,185 metres. Elevated gas readings at 2,230 metres led the JV Partners to further extend drilling to 2,366 metres after running a liner to 2,230 metres.
During the drilling of the additional section elevated gas readings were also recorded from 2,295 metres to 2,317 metres but due to hole and drilling conditions this section of the wellbore was not able to be effectively cased. The well was plugged back to 2,230 metres. During the plugging back of the well the cement set up prematurely resulting in a section of tubing being left in the hole. Operations are underway to remove this impediment to the testing of the well. The Nabors 503 drilling rig will be moved off of the location and relocated to the Lempuyang-1 location once the tubing has been removed from the wellbore to allow for the testing of the zones below 2,066 metres.
Further interpretation of drilling results and a petrophysical evaluation of the wire line logs for the entire hole is progressing and will be factored in to the final design of the testing program. A smaller service rig will be sourced to undertake the testing of the well and the testing program is expected to commence in July, 2010.
The partners in Brunei Block L and in the Lukut-1 well are Kulczyk Oil (40%), AED South East Asia Limited (50%) and QAF Brunei Sdn Bhd (10%). The Lukut-1 exploratory well is the first well in a program of a minimum of four wells to be drilled in Brunei by Kulczyk Oil and its joint venture partners in 2010. Two of the wells, Lukut-1 and Lempuyang-1, are located on Block L (KOV 40%) and the two additional wells will be drilled on Block M (KOV 36%) to the south. All four of the wells will evaluate prospects identified by newly-acquired 3D seismic.
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