Controls on hydrocarbon production in Bryan's Mill area, Cass and Bowie counties, Texas
Production from the Bryan's Mill, Frost, and Carbondale fields in the Bryan's Mill area is from Jurassic upper Smackover dolomitized ooid grainstones. Within the upper Smackover, three coarsening upward sequences culminating in ooid grainstones have been recognized and they extend across the area. Shortly after deposition, leaching by meteoric fluids resulted in oomoldic porosity in many of the ooid grainstones; other carbonate facies were affected very little. During early diagenesis, dolomitization both preserved existing porosities and generated an effective intercrystalline porosity, thereby enhancing permeability. After dolomitization, brittle compaction during burial increased permeability further by the interconnection of oomolds. The center of the Bryan's Mill area was a positive feature during late Smackover deposition. Faulting during Buckner deposition resulted in a series of southeasterly tilted fault blocks, perhaps due to regeneration of basement structures. Later, post-Hosston faulting had an east-west trend and is possibly associated with doming of the sediments over two highs. There is litle evidence of Jurassic or early Cretaceous movement on the east-west trending faults. Production in the area is dependent on a combination of structural, stratigraphic, and diagenetic factors. Although the grainstones are continuous across the northernmost structural high, production is only from dolomitized areas. Thus diagenesis, and in particular dolomitization, is the ultimate control on production in the area.
- Research Organization:
- The Univ., Newcastle-upon-Tyne, England
- OSTI ID:
- 6571971
- Report Number(s):
- CONF-8310301-
- Journal Information:
- Am. Assoc. Pet. Geol., Bull.; (United States), Vol. 67:9; Conference: American Association of Petroleum Geologists eastern section meeting, Carbondale, IL, USA, 3 Oct 1983
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sequence stratigraphic framework of the Upper Jurassic Smackover and related units, western Gulf of Mexico
Facies and reservoir characterization of an upper Smackover interval, East Barnett Field, Conecuh County, Alabama
Related Subjects
03 NATURAL GAS
NATURAL GAS FIELDS
PRODUCTION
OIL FIELDS
TEXAS
DIAGENESIS
DOLOMITE
GEOLOGIC FAULTS
GEOLOGIC HISTORY
HYDROCARBONS
PERMEABILITY
POROSITY
RESOURCE POTENTIAL
STRATIGRAPHY
ALKALINE EARTH METAL COMPOUNDS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
FEDERAL REGION VI
GEOLOGIC DEPOSITS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOLOGY
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERAL RESOURCES
MINERALS
NATURAL GAS DEPOSITS
NORTH AMERICA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM DEPOSITS
RESOURCES
USA
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing