Drilled out from underneath the 9 5/8" casing at 5,738 feet (1,749 meters) with an 8 1/2" bit and an underbalanced mud system down to 5,837 feet (1,779 meters) while producing gas to surface and dominantly dolomite cuttings as reported earlier. At 5,837 feet (1,779 meters), all circulation was lost when permeability became too great to maintain the mud system under pressure. Drilling resumed using a mud cap system and the well was drilled with total losses to the formation from 5,837 feet (1,779 meters) to 7,776 feet (2,370 meters), with drilling fluid (water) losses of approximately 73,000 bbls into the reservoir during drilling operations with pressure.
Currently preparing to log the well. Once logging is complete a conventional core will be acquired from 7,776 feet (2,370 meters) to 7,953 feet (2,424 meters) before drilling to TD of approximately 8,203 feet (2,500 meters).
The core will be used to obtain important petrophysical and reservoir characteristics and assist in the reservoir evaluation and characterization of the reefal facies and the richer condensate tested near the base of the hydrocarbon column in the Elk 4 well.
Past Activity:
Coal and shallow marine fossils fragments were observed in the lower claystone section indicating a shallow marine depositional environment. Limestone and dolomite were present at the top of the carbonate reservoir interval at 5,689 feet (1,734 meters), and continues to be seen through the reservoir section along with some vugular porosity in the drilling samples. Background gas (C1-methane to C5-pentane)(i) was observed while drilling the lower claystone interval above the reservoir prior to the well flowing approximately 2-3 MMcfd once drilling resumed in the carbonate/reef section.
((i)note: previous wells drilled in the area have experienced background gas, however background gas in no way confirms commercial accumulations of hydrocarbons reached to date on this well, until the well is drilled out and testing and logging is completed. The structure may need further geological, geophysical and appraisal work before a commercial confirmation of gas reserves.) There is no assurance that any such reserves will be established.)
Planned Total Depth: Approximately 8,200 feet (2500 meters)
Operator: InterOil subsidiary, SPI (208) Limited.
Prospect Description: This well is targeting the Puri and Mendi, and Antelope reef limestone.
Contact:
Contacts:
InterOil Corporation
Anesti Dermedgoglou
V.P., Investor Relations
+61 7 4046 4600
Email: anesti@interoil.com
Website: http://www.interoil.com
Via Yahoo
Currently preparing to log the well. Once logging is complete a conventional core will be acquired from 7,776 feet (2,370 meters) to 7,953 feet (2,424 meters) before drilling to TD of approximately 8,203 feet (2,500 meters).
The core will be used to obtain important petrophysical and reservoir characteristics and assist in the reservoir evaluation and characterization of the reefal facies and the richer condensate tested near the base of the hydrocarbon column in the Elk 4 well.
Past Activity:
Coal and shallow marine fossils fragments were observed in the lower claystone section indicating a shallow marine depositional environment. Limestone and dolomite were present at the top of the carbonate reservoir interval at 5,689 feet (1,734 meters), and continues to be seen through the reservoir section along with some vugular porosity in the drilling samples. Background gas (C1-methane to C5-pentane)(i) was observed while drilling the lower claystone interval above the reservoir prior to the well flowing approximately 2-3 MMcfd once drilling resumed in the carbonate/reef section.
((i)note: previous wells drilled in the area have experienced background gas, however background gas in no way confirms commercial accumulations of hydrocarbons reached to date on this well, until the well is drilled out and testing and logging is completed. The structure may need further geological, geophysical and appraisal work before a commercial confirmation of gas reserves.) There is no assurance that any such reserves will be established.)
Planned Total Depth: Approximately 8,200 feet (2500 meters)
Operator: InterOil subsidiary, SPI (208) Limited.
Prospect Description: This well is targeting the Puri and Mendi, and Antelope reef limestone.
Contact:
Contacts:
InterOil Corporation
Anesti Dermedgoglou
V.P., Investor Relations
+61 7 4046 4600
Email: anesti@interoil.com
Website: http://www.interoil.com
Via Yahoo
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