Can Pumping CO2 Into California's Oil Fields Help Stop Global Warming?

America's Environmental Protection Agency "has signed off on a California oil company's plans to permanently store carbon emissions deep underground to combat global warming," reports the Los Angeles Times:California Resources Corp., the state's largest oil and gas company, applied for permission to send 1.46 million metric tons of carbon dioxide each year into the Elk Hills oil field, a depleted oil reservoir about 25 miles outside of downtown Bakersfield. The emissions would be collected from several industrial sources nearby, compressed into a liquid-like state and injected into porous rock more than one mile underground. Although this technique has never been performed on a large scale in California, the state's climate plan calls for these operations to be widely deployed across the Central Valley to reduce carbon emissions from industrial facilities. The EPA issued a draft permit for the California Resources Corp. project, which is poised to be finalized in March following public comments. As California transitions away from oil production, a new business model for fossil fuel companies has emerged: carbon management. Oil companies have heavily invested in transforming their vast network of exhausted oil reservoirs into a long-term storage sites for planet-warming gases, including California Resources Corp., the largest nongovernmental owner of mineral rights in California... [Environmentalists] say that the transportation and injection of CO2 - an asphyxiating gas that displaces oxygen - could lead to dangerous leaks. Nationwide, there have been at least 25 carbon dioxide pipeline leaks between 2002 and 2021, according to the U.S. Department of Transportation. Perhaps the most notable incident occurred in Satartia, Miss., in 2020 when a CO2 pipeline ruptured following heavy rains. The leak led to the hospitalization of 45 people and the evacuation of 200 residents... Under the EPA draft permit, California Resources Corp. must take a number of steps to mitigate these risks. The company must plug 157 wells to ensure the CO2 remains underground, monitor the injection site for leaks and obtain a $33-million insurance policy. Canadian-based Brookfield Corporation also invested $500 million, according to the article, with California Resources Corp. seeking permits for five projects - more than any company in the nation. "It's kind of reversing the role, if you will," says their chief sustainability officer. "Instead of taking oil and gas out, we're putting carbon in." Meanwhile, there's applications for "about a dozen" more projects in California's Central Valley that could store millions of tons of carbon emissions in old oil and gas fields - and California Resources Corp says greater Los Angeles is also "being evaluated" as a potential storage site.

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