"Running the storage platforms full out demands a much higher focus and more vigilance," says McDonald Island foreman Jody Garcia. "For example, storage field pressure in January was lower than it had ever been due to the high withdrawals, some 550 psi lower than at the beginning of the season. As the pressure drops, more water and sand comes up with the gas, which can clog our equipment and freeze our instruments."
Crews have successfully prevented problems by stepping up their maintenance checks and in doing so have created the possibility of cycling more gas through the field on a yearly basis. "If we can operate continuously in this range," Garcia says, "we can help boost both storage and transportation revenues."
The increase in withdrawals is a result of colder weather conditions than in the past three years, creating more demand. Customers that purchase cheaper gas during the summer for storage often find it more advantageous to use their inventory than to buy winter gas on the open market.