Strike Energy Limited has announced positive logging while drilling (LWD) results at its West Erregulla 4 well. Strike is preparing to run a full suite of wireline logging tools in order to confirm these initial results. An MDT tool will also be deployed in an attempt to obtain pressure and permeability data and to collect gas samples. Following this, Strike will drill ahead to the top of the primary target in the early Permian King Sandstone where it will then commence coring operations.
According to Strike, as prognosed, the LWD results indicate a large bimodal gas column in thick, blocky sand units where high porosity streaks are interbedded within a thick section of gas-bearing sandstones. The LWD data indicates 35-40 metre of conventional net pay is present across a gross interval of 206 metres at an average poristy of 6 per cent.
These preliminary results are comparable to those seen in the equivalent reservoirs at WE2 and WE3.
Despite penetrating the Dongara/Wagina section, Strike further notes that approximately 35 metres downdip of WE2, no indications of a water leg have been seen.
When the company decided to pull the bottom hole assembly to surface, WE4 was approximately midway through the basal Wagina and was still in gas-bearing sands. These initially interpreted pay zones correlate to strong gas shows seen in the well and are similar to other conventional Dongara and Wagina discoveries that have been made across the northern Perth Basin.
About the West Erregulla Appraisal Campaign
Three appraisal wells will be drilled in the West Erregulla field, which is located in EP469, is situated 230 kilometres north-east of Perth in the North Perth Basin comprising an area of 224 square kilometres [1].
The appraisal wells will be drilled down to approximately 5,000 metres. West Erregulla 4 (and 5) will appraise the reservoir distribution in the central fault block.
After various coring and logging operations, all three wells will be flow tested (on success) and completed as future producers across the Kingia/High Cliff sequences for the proposed Phase 1 production operations.
The Wagina gas discovery made in West Erregulla-2 will be appraised during the West Erregulla 4 and 5 wells.
Strike Energy is the operator and the holder of a 50 per cent joint venture interest in EP469, and Warrego Energy is the holder of the other 50 per cent joint venture interest.
