Seismic amplitude anomalies associated with thick First Leo sandstone lenses, eastern Powder River basin, Wyoming
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Abstract
Several new discoveries of oil production in the Leo sandstone, an economic unit in the Pennsylvanian middle member of the Minnelusa formation, eastern Powder River basin, Wyoming-Nebraska-South Dakota, have renewed exploration interest in this area. Vertical seismic profiles (VSP) and model studies suggested that a measurable seismic amplitude anomaly is frequently associated with the thick First Leo sandstone lenses. To test this concept, a surface reflection seismic profile was run between two wells about 12 miles apart. The First Leo was present and productive in one well and thin and barren in the other. The surface profile shows the predicted amplitude anomaly at the well where a thick lens is known to exist. Two other First Leo amplitude anomalies also appear on the surface seismic profile between the two wells, which may indicate the presence of additional lenses.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Seismic amplitude anomalies associated with thick First Leo sandstone lenses, eastern Powder River basin, Wyoming |
| Series title | Geophysics |
| DOI | 10.1190/1.1441158 |
| Volume | 46 |
| Issue | 11 |
| Year Published | 1981 |
| Language | English |
| Publisher | Society of Exploration Geophysicists |
| Description | 9 p. |
| First page | 1519 |
| Last page | 1527 |
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