Diagenesis of Upper Jurassic Norphlet Formation, Mobile and Baldwin Counties and offshore Alabama

Conference · Thu Sep 01 00:00:00 EDT 1988 · AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)

OSTI ID:6370100

Vaughan, Jr, R L; Benson, D J

The Upper Jurassic Norphlet Formation is an important deep gas reservoir in Mobile and Baldwin Counties and offshore Alabama. The producing reservoir consists of a well-sorted fine-grained subarkose to arkose. Sedimentological studies indicate this unit was deposited on a broad desert plain in environments ranging from eolian dune and interdune to wadi and beach-shoreface. Diagenetic minerals comprise from 5 to 20% of the bulk volume of the sandstone. Porosity ranges from less than 3% to more than 25% and averages around 10%. Most of the porosity consists of hybrid solution-enlarged intergranular and intragranular pores resulting from the dissolution of cements, framework grains, and grain replacements.

• Research Organization: Mobil Exploration and Producing U.S., New Orleans, LA (USA)
• OSTI ID: 6370100
• Report Number(s): CONF-8810362-
• Journal Information: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States), Vol. 72:9; Conference: Gulf Coast Association of the Geological Society and Gulf Coast Section of SEPM meeting, New Orleans, LA, USA, 19 Oct 1988
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
ALABAMA
NATURAL GAS DEPOSITS
RESERVOIR ROCK
DIAGENESIS
GEOLOGIC FORMATIONS
JURASSIC PERIOD
POROSITY
SANDSTONES
FEDERAL REGION IV
GEOLOGIC AGES
GEOLOGIC DEPOSITS
MESOZOIC ERA
MINERAL RESOURCES
NORTH AMERICA
RESOURCES
ROCKS
SEDIMENTARY ROCKS
USA
030200* - Natural Gas- Reserves
Geology
& Exploration