ABSTRACT

The Pollard field is located in Escambia County, Alabama, in the southwestern part of the state 55 miles northeast of Mobile and was discovered on January 18, 1952. The discovery well, Humble's No. 1 A. W. Moye, was drilled on detailed core-drill information and on subsurface information obtained from Stanolind's No. 1 St. Regis Paper Company "A".

The wells drilled in the Pollard field penetrated the south-southwestward-dipping Tertiary and Cretaceous sediments of the Gulf Coastal homocline. Undifferentiated post-Miocene deposits overlie these sediments and conceal the structural evidence of the field. The structure is a west-northwestward-trending graben bounded on the north by the Foshee fault and on the south by the North Pollard and Pollard faults. Closure in excess of 150 feet and drag of 40 feet or more of the Tuscaloosa beds, both on the downthrown and upthrown sides of the Pollard fault, form the trap for oil accumulation. The throw of the Pollard fault increases from 50 feet in the Ocala to 300 feet in the Lower Tuscaloosa.

Production is from the Miller sand of the Upper Tuscaloosa on the downthrown side of the fault, and from the Moye (Pilot) and Massive sands of the Lower Tuscaloosa on the upthrown side. The oil in the Miller sand and in lenticular sands at the base of the Eutaw on the downthrown side is believed by some geologists to have migrated through the fault zone from the Moye oil sand.

On April 1, 1954, the field was producing 2,616 barrels of oil and 8,795 barrels of salt water per day from 35 wells in an area of 738 acres. Cumulative production was 1,465,760 barrels of 25.6° to 30.1° A. P. I. gravity oil.