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Could be an issue to watch and may affect WDS also, or could be a storm in a tea cup, just a heads up.
An unknown number of disused wells off the West Australian coast leaking gas for at least 10 years are impossible to fix, according to gas producer Santos, putting it at odds with the offshore environment regulator.
The leaks at the Legendre field, 105 kilometres north of the Pilbara port of Dampier, were first spotted by an underwater remotely operated vehicle in 2013, two years after work was done to seal them permanently.
Santos submitted a plan to regulator NOPSEMA in early 2022 that rejected action to stem the leaks as “not technically feasible”. Instead, the company proposed to monitor them for another five years.
NOPSEMA would not comment on Santos’ plan as it was under assessment, but was clear about its policy.
“NOPSEMA would never accept that gas wells leak indefinitely,” a spokesman said.
NOPSEMA regulates 873 offshore oil and gas wells: 457 are operating, and 326 are not in use. Its spokesman said the remaining 90 had been plugged and abandoned and were waiting on it to accept the work as properly completed.
A Santos spokeswoman said it had engaged the CSIRO to monitor the leaks.
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“Findings to date show that the gas is non-toxic and unlikely to present an environmental hazard,” she said.
In 2021, gas bubbles up to 10 millimetres in diameter were measured leaking from 26 locations at a total rate of 187 cubic metres a year.
After a further five years of monitoring and studies, Santos proposed to determine the environmental consequence of the leaks. For a moderate risk, Santos would keep monitoring the wells and reconsider if the leaks could be stopped.
If Santos assessed the risk to be negligible, it planned to stop monitoring the leaking wells.
Legrendre was originally operated by Woodside on behalf of its other owners Santos and US-based Apache. Woodside sold its interest to Apache, which managed the abandonment of most of the wells, in 2007. Santos acquired total control in 2018.
STO - Santos Limited
I'm a Democrat by nature but see them beset by a form of political leprosy atm. and would prefer a RINO, which seems in reality impossible given the strive in which the RNC finds itself. Very nice to see you can still rise to the occasion and respond to the bait ;) All the very best dig. bux
www.aussiestockforums.com
An unknown number of disused wells off the West Australian coast leaking gas for at least 10 years are impossible to fix, according to gas producer Santos, putting it at odds with the offshore environment regulator.
The leaks at the Legendre field, 105 kilometres north of the Pilbara port of Dampier, were first spotted by an underwater remotely operated vehicle in 2013, two years after work was done to seal them permanently.
Santos submitted a plan to regulator NOPSEMA in early 2022 that rejected action to stem the leaks as “not technically feasible”. Instead, the company proposed to monitor them for another five years.
NOPSEMA would not comment on Santos’ plan as it was under assessment, but was clear about its policy.
“NOPSEMA would never accept that gas wells leak indefinitely,” a spokesman said.
NOPSEMA regulates 873 offshore oil and gas wells: 457 are operating, and 326 are not in use. Its spokesman said the remaining 90 had been plugged and abandoned and were waiting on it to accept the work as properly completed.
A Santos spokeswoman said it had engaged the CSIRO to monitor the leaks.
Loading
“Findings to date show that the gas is non-toxic and unlikely to present an environmental hazard,” she said.
In 2021, gas bubbles up to 10 millimetres in diameter were measured leaking from 26 locations at a total rate of 187 cubic metres a year.
After a further five years of monitoring and studies, Santos proposed to determine the environmental consequence of the leaks. For a moderate risk, Santos would keep monitoring the wells and reconsider if the leaks could be stopped.
If Santos assessed the risk to be negligible, it planned to stop monitoring the leaking wells.
Legrendre was originally operated by Woodside on behalf of its other owners Santos and US-based Apache. Woodside sold its interest to Apache, which managed the abandonment of most of the wells, in 2007. Santos acquired total control in 2018.