Australian Worldwide Exploration Ltd. said that preliminary analysis of wireline log and pressure data from the Waitsia-4 appraisal well has confirmed the eastern extension of the Waitsia gas field.
The operator of production licenses in the northern Perth Basin, Western Australia encountered strong gas shows across a 150-m gross interval, including the Kingia and High Cliff Sandstone reservoir targets.
The well was successfully drilled to a total depth of 3,744-m measured depth below rotary table (MDRT), having drilled through all primary and secondary targets. The Kingia reservoir was penetrated very close to prognosis at 3,379 m MDRT. Strong gas shows were encountered in the Kingia and High Cliff Sandstone intervals as well as minor shows in the Irwin River Coal Measures.
The well has been cased and suspended for future testing and production. Preparations are now underway to flow test Waitsia-2, Waitsia-3 and Waitsia-4 in the early fourth-quarter of 2017.
Preliminary interpretation of the Kingia reservoir shows excellent conventional reservoir qualities similar to those observed in Waitsia-3 and considerably better than pre-drill estimates. The gross Kingia reservoir interval of 42-m contains 21-m of net gas pay with reservoir quality similar to Waitsia-3.
The Kingia net reservoir interval in both Waitsia-3 and Waitsia-4 is more than double that observed in other wells in the field and confirms the laterally extensive nature of this excellent reservoir. The High Cliff Sandstone reservoir interval and Irwin River coal measures were gas-bearing and preliminary analysis indicates these are tight reservoirs.
Gas-water contact was not intersected in the well; however the measured total depth formation pressures indicated that the Waitsia-4 gas column is continuous with Waitsia-2, indicating a common gas-water contact in this part of the field. Two gas samples were recovered to surface from the Kingia reservoir and are currently being analyzed.
Recommended Reading
Midstream Builds in a Bearish Market
2024-03-11 - Midstream companies are sticking to long term plans for an expanded customer base, despite low gas prices, high storage levels and an uncertain political LNG future.
Permian NatGas Hits 15-month Low as Negative Prices Linger
2024-04-16 - Prices at the Waha Hub in West Texas closed at negative $2.99/MMBtu on April 15, its lowest since December 2022.
Turning Down the Volumes: EQT Latest E&P to Retreat from Painful NatGas Prices
2024-03-05 - Despite moves by EQT, Chesapeake and other gassy E&Ps, natural gas prices will likely remain in a funk for at least the next quarter, analysts said.
US Natgas Prices Hit 5-week High on Rising Feedgas to Freeport LNG, Output Drop
2024-04-10 - U.S. natural gas futures climbed to a five-week high on April 10 on an increase in feedgas to the Freeport LNG export plant and a drop in output as pipeline maintenance trapped gas in Texas.
CNX Joins Crowd of Companies Cutting Back NatGas Production
2024-03-12 - Appalachian gas producer CNX Resources is reducing natural gas production in 2024 and announced delays for well completions on three shale pads.