Relief on the structure at BB Sand depth is approximately 65 ft (20 m), which is based on the difference by subtracting the depth of the last closing contour on the BB Sand and the highest point of penetration. Thirty-seven wells are currently producing in the field. The gravity of the oil is 27/27.1° API, and several of the wells are being gas-lifted. Total oil production from the field to date is more than 18.5 million bbl. The 5,200^prime Sand is the primary producer in the field. Two pay sands occur on the structure, the 4,800^prime Sand with a total, original hydrocarbon column of approximately 30 ft (9.1 m), and the 5,200^prime or BB Sand with a total, original hydrocarbon column of approximately 55 ft (17 m). Drilling had been preceded by a common-depth-point seismic survey that revealed a subtle, east-west elongated, rollover structure on the downthrown side of a down-to-the-coast growth fault. through the drilling of its State Lease 4542 No. Bernard Parish, Louisiana, was discovered by Atlantic Richfield Co. Read moreīlock 25 field, Chandeleur Sound, St. Details of theĭesign and operation of the wastewater infrastructure upgrades are also discussed. Gained from treatment and reuse of refinery wastewater at several Pemex refineries in Mexico served as a foundation for development of a treatment scheme at the refinery, including cold lime softening for production of cooling water, and cold lime softening followed by low pressure membraneįiltration and reverse osmosis for the production of boiler feed water.This paper reviews the wastewater reuse experience at several Pemex refineries in Mexico, and describes the application of that experience as it relates to wastewater reuse at the Midwestern refinery. In addition, the refinery embarked on a major upgrade of its existing wastewater treatment infrastructure, including new API separators and DAF clarifiers. by the municipality, irrigation of agricultural crops, and the refinery.In response, the refinery commissioned a front end engineering design study to evaluate process alternativesįor reclamation of the refinery's wastewater for reuse within the refinery, and to further develop the selected alternative. Water sources utilize the same aquifer, and ongoing monitoring indicates the aquifer is gradually being depleted. The refinery presently relies on its groundwater wells and the local municipal water authority for its process water. Concerns regarding the sustainability of the water source used by a Midwestern petroleum refinery have driven the pursuit of alternative sources of water.
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