Carnarvon reported that the L33-1 exploration well free flowed 35 degree API oil at an average rate of approximately 1,100 barrels of oil per day gross (660 BOPD net POE) with a water cut of 7.72% (with 80,000 ppm chlorides indicating load and drilling fluids) in the last 36 hours of a 108 hour test. The well was shut-in at the end of the 108 hour period to leave sufficient storage capacity for the testing of the WBEXT-1 exploration well detailed below.
The L33-1 exploration well was drilled vertically from a surface location in Concession L33 approximately 4.5 kilometers north of the Concession L44 / Concession L33 boundary targeting a structural closure with an estimated maximum areal extent of approximately 9.7 square kilometers at the volcanic objective level. Prior to the drilling of this well, production had yet to be established from Concession
L33.
The top of the volcanic objective was encountered at a depth of 741 meters and a further 28 meters of section was drilled before drilling fluid losses totaling 780 barrels (indicating excellent permeability) resulted in the decision to complete the well for production at that depth.
The L33-2 appraisal well is currently drilling from a surface location approximately 1.8 kilometers south of L33-1 and is targeting the same L33-1 volcanic reservoir within the 9.8 square kilometers estimated maximum areal extent structural closure.
The intent is to appraise the L33-1 discovery with the L33-2 well and immediately prepare and submit a production license (PL) application to the Thailand Department of Mineral Fuels (DMF) upon the completion of the testing of the L33-2 well. Until a production license is approved by the DMF, historically 90 days from the date of the application submission, no production may be sold since this
discovery represents the first oil production in Concession L33 and a point of sale PL does not exist within the concession. Additional appraisal wells will be required to determine the extent of the L33-1 accumulation.
