Prefracture testing in tight gas reservoirs
At the time of the investigation in late 1983, the author observed that the semilog analysis for both the drawdown and buildup yielded about 6.7% lower values of the kh product when the pseudopressure is plotted vs. the appropriate log(pseudotime). They attributed this difference to coarse gridding for lack of a further investigation. The purpose of the work was to find the use of pseudopressure and pseudotime in the storage-dominated (the normal test scenario) and infinite-acting periods of a test. To that end, they believe they provided practical guidelines; i.e., plotting pseudopressure vs. log(time) for the infinite-acting data and the use of both pseudopressure and pseudotime during treatment of the storage-dominated test data.
- Research Organization:
- Schlumberger Perforating and Testing Center
- OSTI ID:
- 6203439
- Journal Information:
- SPE (Society of Petroleum Engineers) Format. Eval.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Format. Eval.; (United States) Vol. 2:2; ISSN SFEVE
- Country of Publication:
- United States
- Language:
- English
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A comparison of the use of pseudotime and normalized time for gas well buildup analysis in various geometries
Prefracture Testing in Tight Gas Resevoirs
Related Subjects
030300* -- Natural Gas-- Drilling
Production
& Processing
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
COMMINUTION
DRAWDOWN
ENERGY SOURCES
ENHANCED RECOVERY
FLUIDS
FORMATION DAMAGE
FOSSIL FUELS
FRACTURING
FUEL GAS
FUELS
GAS FUELS
GASES
GRAPHS
HYDRAULIC FRACTURING
NATURAL GAS
NATURAL GAS WELLS
PERMEABILITY
PRESSURIZING
RECOMMENDATIONS
RECOVERY
RESERVOIR PRESSURE
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
STIMULATION
TESTING
TIME DEPENDENCE
WELL LOGGING
WELL PRESSURE
WELL STIMULATION
WELLS