- journal_title：Geophysics
- Contributor：D. Ray Dobyns ; William B. Roper
- Publisher：Society of Exploration Geophysicists
- Date：1954-
- Format：text/html
- Language：en
- Identifier：10.1190/1.1438024
- journal_abbrev：Geophysics
- issn：0016-8033
- volume：19
- issue：3
- firstpage：490
- section：Articles
This paper presents a chronological historical record of the geophysical activity in the area near the town of Mamou, Louisiana which subsequently led to the discovery of the Mamou Oil Field.The successive stages of geophysical exploration were:1. Mechanical seismograph refraction survey by North American Exploration Company (German company) in August 1926 for Magnolia-Union Sulphur-Harry Hanszen.2. Torsion balance survey by Shell Oil Company in 1934.3. Magnetometer survey by Atlantic Refining Company in 1936.4. Torsion balance survey by Atlantic Refining Company in 1936.5. Gravity meter survey by Magnolia Petroleum Company the latter part of 1942 and early part of 1943.6. Three weeks' seismic work by Petty Geophysical Engineering Company for Magnolia Petroleum Company in June 1943.7. A few weeks' work by General Geophysical Company for Cities Service Oil Company in June, 1943.8. Detailed seismic survey by Independent Exploration Company for Magnolia Petroleum Company from November, 1943 to June, 1945.The discovery well, Magnolia's No. 1 J. B. Morein, was completed December 28, 1945 through perforations from 11,520 feet to 11,530 feet, producing 208 barrels of 46.3 gravity oil and 770 MCF gas per day through 8/64 inch choke.There are three producing horizons in the upper part of the Wilcox group. The first, or Morein stringer, is approximately 5 feet thick and lies about 18 feet above the second, or Morein sand, which has 19 feet average production thickness. The third, or Deshotels sand, has an average productive thickness of 10 feet and is approximately 230 feet below the Morein sand.Twenty producers and five dry holes were drilled. The field has been unitized and is being water-flooded.Total production of the field to January 1, 1954 was 2,498,373 barrels. December, 1953 production was 20,604 barrels.