WellDog Pty Ltd has announced that it has developed a new technical service for locating natural gas and natural gas liquids in shale formations. The invention was the result of eighteen months’ collaboration with Shell International Exploration & Production Inc.
The laboratory and field development programme undertaken by the two companies, leveraged WellDog’s patented downhole “Raman” spectroscopy technology and Shell’s geochemical and petrophysical experience in shale gas evaluation.
The result of the collaboration is a device that is put down the wellbore where it utilises the so-called “Raman effect” to find out exactly which hydrocarbons are present and where they are. The “Raman effect” exploits molecules’ properties to reflect light with different characteristics depending on the type of chemical encountered.
The companies believe the device to be superior to infrared systems as it is not sensitive to water. It is also said to give more accurate and reliable information about reservoirs than mud samples or seismic scans.
According to WellDog CEO John Pope. “It’s a direct analyst of the exact oil or gas you’re trying to produce.”
The two companies believe that the new service will allow producers to focus development efforts, reduce drilling costs, optimize production, and reduce the number of hydraulic fracturing stages and associated water usage.
Shell is now leading beta trials of the technical service that is being developed from the program.
More information is available at www.welldog.com.
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