Tertiary miscible flood in Phegly unit, Washington County, Colorado

Journal Article · Sat Jan 01 04:00:00 EST 1972 · SPE of AIME Mid-Continent Sect. Improved Oil Recovery Symp.; (United States)

DOI:https://doi.org/10.2118/3775-MS· OSTI ID:6126716

Connally, Jr, C A

A slug of LPG followed by slugs of natural gas alternated with water and finally driven by further water injection was used in a miscible displacement scheme for tertiary recovery in the Muddy D sand reservoir. Phegley Unit, Washington County, Colorado. The tertiary project was applied full-scale to the small (9.6 MM bbl PV) reservoir at a time when a successful waterflood was approaching completion. An additional bank of oil was produced but the oil rate declined rapidly with premature gas breakthrough. It was concluded that the volumetric sweep with the miscible fluid was relatively inefficient because of an unfavorable mobility ratio. Also, it was possible that a significant portion of the oil banked-up within the reservoir was by-passed after breakthrough of gas at the production wells.

• OSTI ID: 6126716
• Journal Information: SPE of AIME Mid-Continent Sect. Improved Oil Recovery Symp.; (United States), Journal Name: SPE of AIME Mid-Continent Sect. Improved Oil Recovery Symp.; (United States) Vol. SPE-3775
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
COLORADO
EFFICIENCY
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GAS INJECTION
GASES
LIQUEFIED PETROLEUM GASES
LIQUIDS
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS
NATURAL GAS LIQUIDS
NORTH AMERICA
OIL WELLS
PETROLEUM
PETROLEUM PRODUCTS
RECOVERY
ROCKS
ROCKY MOUNTAIN REGION
SANDSTONES
SEDIMENTARY ROCKS
STIMULATION
USA
WELL STIMULATION
WELLS