We can scream all we want (with some justification) about the California Coastal Commission, Santa Barbara County, and intractable environmental organizations, but the Santa Ynez Unit would still be producing today were it not for an ugly, preventable pipeline spill.
At approximately 10:55 a.m. Pacific Daylight Time (PDT) on May 19, 2015, the Plains Pipeline, LP (Plains), Line 901 pipeline in Santa Barbara County, CA, ruptured, resulting in the release of approximately 2,934 barrels (bbl) of heavy crude oil. An estimated 500 bbl of crude oil entered the Pacific Ocean.
1) Ineffective protection against external corrosion of the pipeline
The condition of the pipeline’s coating and insulation system fostered an environment that led to the external corrosion.
The pipeline’s cathodic protection (CP) system was not effective in preventing corrosion from occurring beneath the pipeline’s coating/insulation system.
2) Failure by Plains to detect and mitigate the corrosion
The in-line inspection (ILI) tool and subsequent analysis of ILI data did not characterize the extent and depth of the external corrosion accurately.
3) Lack of timely detection of and response to the rupture
The pipeline supervisory control and data acquisition (SCADA) system did not have safety-related alarms established at values sufficient to alert the control room staff to the release at this location.
Control room staff did not detect the abnormal conditions in regards to the release as they occurred. This resulted in a delayed shutdown of the pipeline.
The pipeline controller restarted the Line 901 pipeline after the release occurred.
The pipeline’s leak detection system lacked instrumentation and associated calculations to monitor line pack (the total volume of liquid present in a pipeline section) along all portions of the pipeline when it was operating or shut down.
Control room staff training lacked formalized and succinct requirements, including emergency shutdown and leak detection system functions such as alarms.
Plains Pipeline was the responsible party, but that doesn’t absolve the companies that were dependent on Plains to transport their production. Given the organized opposition that emerged following the Santa Barbara blowout in 1969 (the result of a reckless well plan), the integrity of that pipeline was critical to their business strategy and they should have exercised some oversight.
Offshore disasters have had enormous consequences for the oil and gas industry in terms of lost opportunities. Think about this: prior to the Macondo blowout, the Obama administration had proposed an oil and gas lease sale in the Atlantic and the Florida Senate was holding hearings about leasing in Florida State waters. Such lease sales are now completely out of the question.
Regulations and standards are not enough. We need open discussion about incidents, large and small, and a willingness to be critical of the responsible parties.
Bud's Offshore Energy (BOE) 