Controls on reservoir quality in tight sandstones of the Travis Peak formation, East Texas

Journal Article · Tue Mar 01 04:00:00 EST 1988 · SPE (Society of Petroleum Engineers) Format. Eval.; (United States)

DOI:https://doi.org/10.2118/15220-PA· OSTI ID:7166957

Dutton, S P; Finley, R J

Most sandstone in the gas-bearing Travis Peak formation has undergone compaction and extensive cementation during its burial history, resulting in low porosity and permeability. Diagenetically induced permeability variations are superimposed on original permeability variations produced by depositional processes. Sandstones range from fluvial-channel to shallow-marine, bay and tidal-flat deposits. Three types of sandstone that differ in their original permeability distribution and lateral continuity are distinguished. Travis Peak sandstones have undergone a complex series of diagenetic modifications. Precipitation of authigenic quartz, ankerite, dolomite, illite, and chlorite, and the introduction of reservoir bitumen, were the most important causes of occlusion of primary porosity and reduction of permeability. Porosimeter-measured porosity is the best predictor of permeability, and there is a statistically significant inverse correlation between total volume of cement and permeability. Permeability decreases with depth in the Travis Peak, suggesting that the diagenetic processes that caused extensive cementation and resultant low permeability throughout most of the formation did not operate as completely on sediments deposited near the top of the formation.

• Research Organization: Bureau of Economic Geology, Univ. of Texas (US)
• OSTI ID: 7166957
• Journal Information: SPE (Society of Petroleum Engineers) Format. Eval.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Format. Eval.; (United States) Vol. 3:1; ISSN SFEVE
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030200* -- Natural Gas-- Reserves
Geology
& Exploration
CHEMICAL COMPOSITION
CHEMISTRY
EXPLORATION
FEDERAL REGION VI
GAS SATURATION
GEOCHEMISTRY
GEOLOGIC DEPOSITS
GEOPHYSICS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NORTH AMERICA
PERMEABILITY
POROSITY
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SATURATION
SEDIMENTARY ROCKS
SEDIMENTATION
TEXAS
USA