Oilfield Microbial Enhanced Oil Recovery
Oilfield Case Histories
History: Three Storage Tanks were experiencing severe tank bottoms problems leading to the accrual of more than 36 inches of sludge. Production fallouts, or bottoms led to numerous downtime for turnarounds to clean out the tanks.
Treatment: The tanks were treated with a small treatment of ParaBgone applied at an addition rate of 2 gallons every 60 days.
ParaBgone was injected through a bottom valve by pressured line so as to roll the bottoms while the initial treatment was applied. The same bottom valve was used twice per week for the next two weeks to pump air into the bottoms section so as to continue the rolling action.
Results: Initial tank bottoms were 36 inches deep. Following treatment, 30 days later the bottoms measured 12 inches. Tank bottoms further decreased one month later to 5 inches. The composition of the remaining sediment was primarily found to consists of formation sands with very little BS&W in evidence. A steady maintenance application has kept tank bottoms low ever since thus reducing downtime and maintenance costs.
History: Evidence of explosive vapors were emanating from a sanitary sewer, a private residence and small store. The vapors were found to be coming from leaking underground fuel storage tanks. Raw gasoline was found in the sanitary sewer adjacent to the tanks. The vapor concentration in the sewer and residence were found to be in the explosive range.
Treatment: Microbes were injected into the sanitary sewer at the expected source. Within six hours the Lower Explosive Limit (LEL) was below explosive limits. The product was used daily until the source could be stopped to suppress the vapors in the storm sewers. The crew eventually installed a remediation system to isolate the gasoline source.
Conclusion: SEPCOR Microbes are an effective method for controlling and remediating hydrocarbon contamination and suppressing vapors.
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