A new method for direct measurement of in-situ stress directions and formation rock properties
- Halliburton Energy Services, Duncan, OK (United States)
This paper presents a new method to determine in-situ stress directions and in-situ formation rock properties with a newly developed downhole extensometer. The extensometer is used to measure wellbore deformation, pressure, and temperature during a microfracture stress test. This paper presents the method used to analyze the data this new device collects. Some of the parameters that can be determined are (1) principal stress directions, determined from the induced fracture orientation; (2) minimum in-situ stress magnitude, determined from the fracture width calculations and the conventional microfracture analysis; and (3) in-situ static rock properties, determined from the prefracture wellbore deformation. This paper emphasizes the theoretical methodology used in the data analysis. A field case example is included.
- OSTI ID:
- 5112673
- Journal Information:
- JPT, Journal of Petroleum Technology; (United States), Journal Name: JPT, Journal of Petroleum Technology; (United States) Vol. 46:3; ISSN 0149-2136; ISSN JPTJAM
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
DATA
DATA ANALYSIS
DESIGN
EXPERIMENTAL DATA
EXTENSOMETERS
GEOLOGIC DEPOSITS
INFORMATION
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICS
MINERAL RESOURCES
NUMERICAL DATA
ORIENTATION
PETROLEUM DEPOSITS
RESERVOIR PRESSURE
RESOURCES
ROCK MECHANICS
SHEAR PROPERTIES
STRESS ANALYSIS