The well had been drilled to a depth of 971m and log data indicated the presence of a limestone (carbonate) reservoir formation over 50m from 921m where total lost circulation had occurred. Final depth of the well will be determined by the nature of the formations encountered and also, by the volumes of lost drilling fluid, the recovery of which may be necessary during the testing phase.
A well seismic program (offset vertical seismic profile) is then planned with the objective to confirm the structural configuration of the reservoir. The analysis of the dip meter log data indicated that the top carbonate formation had been penetrated by the Anagni-1 well at an angle of between 20º and 30º. If this is confirmed by the seismic data interpretation, it will establish the optimum location for an up-dip appraisal well.
Testing operations are planned with the capability to equip the well with an artificial lift pump, with the final configuration dependant on the information obtained during deepening and on the approval of the relevant authority. Testing operations are expected to continue for several weeks following the conclusion of drilling.
Ascent Resources Managing Director Jeremy Eng said, "From the analysis of the original well data, Pentex and Ascent are already planning the first two appraisal wells to evaluate the size and extent of the Anagni structure. The additional information from the deepened well and the testing operations will be important to this process and it will take at least several weeks to assimilate all the results."
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