Improved use of wireline testers for reservoir evaluation
Vertical pressure profiles obtained from wireline multiple-pressure testers have become an important tool for improved determination of reservoir pressure and fluid distributions. Procedures and techniques for data acquisition to improve the quality of both strain and quartz gauge pressure data for vertical profiles are presented. Tool calibration checks, wellsite monitoring and consistency checks, techniques for normalizing pressure surveys within the same well or different wells, and sampling strategies are given. Examples are used to illustrate these procedures and techniques. In addition, field examples of vertical-pressure-profile plots and interpretation of these plots are used to illustrate applications for defining fluid contacts and identifying oil reservoirs in freshwater environments, defining multiple fluid contacts throughout an apparently continuous oil section, identifying multiple-pressure regimes in a supernormal-pressure environment, identifying zones of differential reservoir depletion as a result of low permeability or an impermeable barrier, and estimating fluid properties at reservoir conditions.
- Research Organization:
- Chevron Oil Field Research Co.
- OSTI ID:
- 6204850
- Journal Information:
- J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 39:6; ISSN JPTJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CALIBRATION
CHALCOGENIDES
CONTROL
DATA ACQUISITION
DATA ANALYSIS
EQUIPMENT
FLUID FLOW
FRESH WATER
HYDROGEN COMPOUNDS
MEASURING INSTRUMENTS
MINERALS
MONITORING
NATURAL GAS WELLS
OIL WELLS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PERMEABILITY
PRESSURE GAGES
PRESSURE GRADIENTS
PRESSURE MEASUREMENT
QUALITY CONTROL
QUARTZ
RESERVOIR PRESSURE
SAMPLING
SILICON COMPOUNDS
SILICON OXIDES
TESTING
WATER
WELL LOGGING EQUIPMENT
WELLS