There was an attempt to prevent a well which has been leaking oil into the Timor Sea for more than a month, but has failed.
The spill at PTTEP Australasia's Montara well-head platform began on August 21; this region is more than 200km off the Kimberley coast.
A spokeswoman for PTTEP Australasia said that the very first attempt to pump heavy mud into the leaking well had failed.
They also added that the process will require another pass to solve the leak but that sequence would take about another four days.
The chief financial officer of PTTEP Australasia said the drilling team had to locate and intersect a piece of steel casing about 25cm in diameter, 2.6km below the sea bed.
The intercept operation may involve a number of passes and added complex calculations which will require sophisticated equipment and software to narrow down the exact location of the leaking well . Each pass narrows that zone of uncertainty.
They say that even if the first line of attack did not succeed, but each consecutive pass sequence would definitely take up to four days to reach completion.
Conservationists have been disapproving of the government’s response to the oil spill which is in a remote and isolated area, which homes a number of endangered species.
Last week, Indonesia had dispatched a team of officials to monitor Australia's response to the oil spill, saying it feared that this could harm Indonesia's rich marine life.
