Sydney-listed Sacgasco on March 8 announced that the Borba 1-7 well in California's onshore Sacramento basin has intersected anomalous gas shows in the first reservoir objective, called the Kione sands. 

The well intersected high gas shows peaking at 65 units, which is 13 times higher than the normal background gas level of five units, the company said. The gas shows covered a gross interval of 190 ft below 3,790 ft measured depth, it added. Borba 1-7 was drilled to 4,737 ft and will be drilled to test multiple stacked 3D seismic amplitude anomalies in the interval from 3,200 to 9,500 ft. 

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“It is very encouraging that the first target reservoir in the Borba 1-7 well has been encountered with high gas shows over an interval which is thicker than what was anticipated,” managing director Gary Jeffery said. “This confirmed our interpretation of the relevance of the seismic amplitude anomalies and the presence of natural gas, and augurs well for the multiple undrilled amplitudes ahead.” 

Jeffery added that the intersected gas shows are in sandstones which are correlative with the productive locally named Knight Sands and underlying Basal Kione gas reservoirs that produced gas from the adjacent Ord Bend field. 

Sacgasco is the operator of the project, partnered with fellow Australian explorer Xstate Resources.