North Sabine Lake field: complex deposition and reservoir morphology of lower Hackberry (Oligocene), southwest Louisiana
Gas and condensate production at the North Sabine Lake field is from sands of the Hackberry wedge of the Oligocene Frio Formation. These lower Hackberry sands were deposited in a preexisting submarine canyon. Multiple sand bodies are present, and five patterns of sand deposition are recognized from SP logs: (1) incised channel fill, (2) braided fan channel, (3) intermediate suprafan, (4) proximal suprafan, and (5) overbank. Although three faults surround the field, the primary trapping mechanism is stratigraphic. The development and production history of the field indicate that many small sand lenses have coalesced to form a single large reservoir; however, differences in permeability have caused variations in water influx and in the levels of gas-water contacts. Sand lenses that are not connected to the larger reservoir are of limited size and have produced small amounts of hydrocarbon. Development of the field has been complicated by casing damage probably caused by reservoir compaction. 11 figures, 2 tables.
- Research Organization:
- Tenneco Oil Exploration and Production, Houston, TX
- OSTI ID:
- 6915873
- Journal Information:
- AAPG Bull.; (United States), Vol. 71:10
- Country of Publication:
- United States
- Language:
- English
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