Geologic investigations in support of a proposed carbon dioxide miscible flood in the MCA unit Maljamar-Grayburg/San Andres Pool, Lea County, New Mexico. Final report

Technical Report · Thu Mar 01 04:00:00 EST 1984

OSTI ID:6910193

Foster, R W

Presented are the results of a detailed geologic study of the principal oil-bearing intervals within the Grayburg and San Andres Formations at the MCA Unit of the Maljamar Field. The work includes an interpretation of the depositional environment for selected intervals as determined from core and thinsection studies. The conclusion is that the sediments were deposited along a prograding shore line and represent near shore marine, intertidal, and supratidal deposits. An evaluation of porosity and permeability as related to core interpretations led to the conclusion that conditions favorable for the accumulation of oil were almost entirely restricted to nearshore marine deposits. Intertidal and supratidal rocks were not favorable for the development of effective porosity. Although many types of porosity are present, the most important in both the dolomite and sandstone reservoirs is secondary vuggy porosity. The Grayburg includes at least 14 sandstone reservoirs and the San Andres numerous dolomite zones and one sandstone interval. The distribution and effective porosity of important zones as related to the carbon dioxide flood are shown in maps and cross sections. 14 references, 64 figures, 11 tables.

• Research Organization: New Mexico Inst. of Mining and Technology, Socorro (USA). New Mexico Petroleum Recovery Research Center
• OSTI ID: 6910193
• Report Number(s): NMERDI-2-68-3308; ON: DE84901074
• Country of Publication: United States
• Language: English

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ALKALINE EARTH METAL COMPOUNDS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE INJECTION
CARBONATE MINERALS
CARBONATES
DATA
DOLOMITE
DRILL CORES
EXPERIMENTAL DATA
FEASIBILITY STUDIES
FEDERAL REGION VI
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GEOLOGIC DEPOSITS
GEOLOGICAL SURVEYS
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MISCIBLE-PHASE DISPLACEMENT
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NUMERICAL DATA
OXYGEN COMPOUNDS
PERMEABILITY
PETROLEUM DEPOSITS
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ROCKS
SANDSTONES
SEDIMENTARY ROCKS
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WELL LOGGING
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