Stockholm SW Field, Greeley/Wallace Counties, Kansas

Abstract

Stockholm SW field was the first Morrow oil field discovered in what is referred to as the Stateline trend. This 30-mi (48-km) trend is located along the border between Kansas and Colorado and includes western Wallace and Greeley counties, Kansas, and eastern Cheyenne and Kiowa counties, Colorado. Oil is produced out of Lower Pennsylvanian Morrow valley-fill sandstones from more than 250 producing wells comprising 10 fields.

While not utilized in the original discovery of Stockholm SW field, geophysics has played a significant role in the exploration for and development of all subsequent fields in the trend. The incisement of valleys into the underlying carbonates has created a thick Morrow sequence directly mappable with modem seismic techniques. Hundreds of miles of seismic data have been acquired along the Stateline trend in the exploration for Morrow reservoirs, and 3D seismic has proved valuable in field development. Aeromagnetic data provide clues as to the basement influence on Morrow drainage patterns. The use of these data and the key geologic elements of the play are the focus of this paper.