Material properties of Devonian shale for stimulation-technology development

Technical Report · Wed Oct 01 04:00:00 EDT 1980

OSTI ID:6570715

Blanton, T L; Young, C; Patti, N C

Material properties are used in the design of hydraulic fracturing treatments to establish a relation between the volume of fluid used in a job and the expected extent of the fracture. In Devonian shales this is important in determining the volume of fluid necessary to intersect the natural fracture system. In an attempt to provide a consistent and self-contained data base on the physical properties of Devonian shale, Science Applications has reviewed and collected previously generated data from numerous sources and has performed additional experiments so as to define the applicability of some of the quasi-static data to the evaluation of dynamic treatments. The review, experiments and evaluation which have been conducted on Devonian shale physical properties have resulted in the following principle conclusions: the elastic properties and yield surfaces defined by triaxial tests on Devonian shale may be significantly dependent upon shale type and organic richness, but a more systematic approach to core selection and testing will be required to establish correlations. Sufficient material property data for modeling and stimulation design exist only on a very site-specific basis, and more testing is required for identifying generic and regional trends. Dynamic experiments employing modified split-Hopkinson-bar techniques were so controlled by anisotropic sample failure that quantitative data on dynamic yield strength could not be obtained. There is a strong need for the development of experimental techniques and the generation of concordant data on the dynamic yield characteristics of Devonian shale at strain rates representative of explosive and tailored-pulse-loading. 9 figures, 17 tables.

• Research Organization: Science Applications, Inc., Steamboat Springs, CO (USA)
• DOE Contract Number: AM21-78MC08216
• OSTI ID: 6570715
• Report Number(s): DOE/MC/08216-1330; ON: DE83006484
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
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033000* -- Natural Gas-- Properties & Composition
04 OIL SHALES AND TAR SANDS
040500 -- Oil Shales & Tar Sands-- Properties & Composition
APPALACHIA
BITUMINOUS MATERIALS
BLACK SHALES
BULK DENSITY
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
COMMINUTION
COMPRESSION STRENGTH
DATA
DATA COMPILATION
DENSITY
DEVONIAN PERIOD
DRILL CORES
ENERGY SOURCES
FEDERAL REGION II
FEDERAL REGION III
FEDERAL REGION IV
FEDERAL REGION V
FOSSIL FUELS
FRACTURE PROPERTIES
FRACTURING
FUELS
GEOLOGIC AGES
GEOLOGIC FORMATIONS
HIGH PRESSURE
HYDRAULIC FRACTURING
ILLINOIS
INFORMATION
KENTUCKY
MATERIALS
MECHANICAL PROPERTIES
NEW YORK
NORTH AMERICA
NUMERICAL DATA
OHIO
OIL SHALES
ORIENTATION
PALEOZOIC ERA
PERMEABILITY
PHYSICAL PROPERTIES
POISSON RATIO
POROSITY
PRESSURE DEPENDENCE
STRESSES
TENSILE PROPERTIES
USA
WEST VIRGINIA
YOUNG MODULUS