Visual Kerogen and Vitrinite Reflectance Analyses of the Pleasant Bayou No. 1 Well, Brazoria Co., Texas

dc.creatorSchwab, Karl W.
dc.date.accessioned2024-03-05T20:32:45Z
dc.date.available2024-03-05T20:32:45Z
dc.date.issued1979
dc.description.abstractBased on the visual kerogen analyses, the Pleasant Bayou No. 1 Well can be subdivided into six (6) zones and nine (9) sub-zones. The stratigraphic section ranges from Immature at 2,394 feet to Marginally Mature at 16,500 feet. From 2,894 to 5,360 feet, the organic matter suite is primarily an amorphous, spore-pollen assemblage with secondary amounts of vitrinite. Below 5,000 feet, the kerogenaceous debris is generally a vitrinite, plant tissue, spore-pollen mixture with very little amorphous debris. Loss-of-circulation material, indicating drilling problems, is particularly abundant in cutting samples from 9,740 to 10,820 feet. There is a significant "jump" in the thermal maturation index (T.A.I.) at the T-3 seismic horizon between 11,180 and 11,600 feet. As a result of the overall thermal immaturity and due to only fair quality organic matter, one can expect non-commercial accumulations of biogenic methane and/or wet gas.
dc.description.departmentBureau of Economic Geology
dc.identifier.urihttps://hdl.handle.net/2152/123930
dc.relation.ispartofContract Reports
dc.rights.restrictionOpen
dc.subjectgeology
dc.subjectpetroleum
dc.subjectTexas
dc.subjectBrazoria County
dc.subjectPleasant Bayou
dc.titleVisual Kerogen and Vitrinite Reflectance Analyses of the Pleasant Bayou No. 1 Well, Brazoria Co., Texas
dc.typeOther

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