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The AAPG/Datapages Combined Publications Database

GCAGS Transactions


Gulf Coast Association of Geological Societies Transactions Vol. 58 (2008), Pages 543-560

Rejuvenation of a Shallow Reservoir in the Seventy-Year-Old Golden Meadow Field, Lafourche Parish, Louisiana

Kelly S. Kolvoord, Allen R. Peterson, Robert C. LaForge, and Raymond W. Block

Apache Corporation, 2000 Post Oak Blvd., Ste. 100, Houston, Texas 77056


Apache Corporation recently completed two successful horizontal oil wells in the 2700’ sand on the south flank of Golden Meadow Field. This is remarkable for a reservoir that has had 93 completions since it was discovered 70 yr ago and was considered to have been watered-out since the early 1980s. Subsurface analysis suggests the 2700’ sand was deposited in a shallow water bay-type delta during the middle Pleistocene. Three distinct sedimentary environments have been identified: distributary mouth bars, channel fills, and interdistributary crevasse splays. An amplitude extraction on the 2700’ sand indicates that amplitudes generally correspond to thicker, well-developed, distributary mouth bar sands. Discontinuities in the reservoir do not appear to have affected uniform drainage of the oil column. The original oil-water contact of -2683 ft (818 m) subsea elevation has moved updip to its highest level of -2653 ft (809 m), as the result of the drilling program initiated by Texaco from the early 1940s through the late 1970s. The reservoir produced 11.7 MMBO (million barrels of oil), but recent drilling indicates the oil-water level has not moved significantly since the late 1970s. Vertical wells that have been drilled into the reservoir have experienced coning, which caused most of them to prematurely water-out. Three pilot holes drilled by Apache in late 2007 resulted in the drilling of two very successful horizontal wells. Ten more horizontal wells will be drilled in this reservoir in 2008.

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