Morphologie du substratum de l'Etang de Berre

A continuous seismic profile has shown that the Berre lagoon (Bouches-du-Rhone, France) comprises two depressions, cut in the upper Cretaceous or Miocene substratum, which are filled by sediments giving variable reflections. The depressions may have formed as a result of two Ponto-Pliocene erosional cycles succeeded by an influx of mixed detritus in the Quaternary.

GEOPHYSICAL CASE HISTORY OF THEUVENINS CREEK FIELD, TYLER COUNTY, TEXAS

Theuvenins Creek Field is located along the Wilcox producing trend in south‐central Tyler County, Texas. The field was discovered jointly by Sinclair Oil and Gas Company and the Atlantic Refining Company. The first seismic survey of the area was made in 1938. In 1942, a reconnaissance seismic survey was made using the spot correlation method. This work indicated anomalous conditions. In 1955, the area was detailed using a continuous seismic profile method. The seismic data were later reviewed, and the reviewed interpretation substantiated the existence of Wilcox structural closure. Based on seismic evidence, Atlantic and Sinclair spudded the Brown Fee No. 1 wildcat well on August 15, 1957. This well was completed on October 12, 1957 as the discovery well of the field. From an Upper Wilcox sand the well produced 279 barrels of oil per day. Subsequent drilling developed two producing sands in the Uppper Wilcox. A total of 38 producing wells have been drilled on the structure with no dry hole to date. To January, 1961, the total cumulative production from the field was 1.4 million barrels of oil.