economy
U.S. strategic reserves are getting so low it threatens damaging the 60 underground salt caverns storing American oil
Strategic oil inventories have reached a 40-year low, and experts warn their continued depletion could damage the underground caverns where the reserves are stored.
TL;DR
- The U.S. Strategic Petroleum Reserve (SPR) has dropped below 300 million barrels, a level not seen since the 1980s.
- Experts warn that further depletion could cause irreparable damage to the underground salt caverns storing the oil.
- The Department of Energy denies these claims, stating the caverns remain full with a mix of oil and water.
- Engineering experts highlight that historical design parameters for the caverns, intended for fewer drawdowns, are being exceeded.
- The process of maintaining pressure during drawdowns involves injecting water, which dissolves salt walls, and temperature changes can cause salt to break off.
- Concerns exist about the long-term viability of the caverns as repeated drawdowns expand cavern volume and reduce spacing.
- If oil extraction continues at a conservative pace, reserves could hit their legal limit of 252 million barrels in approximately three months, increasing physical damage risks.