Exploration and Appraisal
The first step in producing gas is actually finding gas in the earth. Then, a decision needs to be made about whether it makes economic sense to pursue it.
Geologists examine the local area and make an initial assessment about the likelihood of gas being underground.
They follow up with more in depth examinations, for example with a seismic survey that looks at the rocks underground. They figure out if the rocks are likely to contain gas and if so, how much.
If the signs all look good, the gas company will drill an exploration well. This well is used to find out if gas really is present, and if so, how far down.
If the exploration well results are promising, the gas company will drill an appraisal well. If not, the company will proceed immediately to decommissioning and rehabilitation.
An appraisal well is used to test the flow rate. It’s one thing to find gas underground, it’s another to extract it. If the gas flows too slowly the well would not be economically viable, because the cost of machinery, equipment and staff is high.
If the appraisal well results are promising, the gas company proceeds to developing the gas field.
If not, the gas company proceeds immediately to decommissioning and rehabilitation.
RECENT Exploration and Appraisal
PREVIOUS Exploration and Appraisal
The Drover-01 exploration well was drilled in mid-2014. Find out more about the current status of Drover-01.
The Irwin-01 exploration well was completed in May 2015. Find out more about the current status of Irwin-01.
Woodada Deep-01 was drilled in April 2012. It was a deepening of the Woodada-04 well. Find out more about the current status of Woodada Deep-01.
We are actively exploring, appraising, developing and producing oil and gas in a number of locations in the north Perth Basin. Read more about what we do
Before anything can happen we need to plan carefully. Read more about the planning process.
Once we’ve confirmed a well is commercially viable we get ready to put it into production. Read more about the development process.
During the production phase we extract gas from the well and sell it. Find out more about the production process.