Tensile strength is paramount for reliable simulation of hydraulic fracturing experiments on all scales. Tensile strength values depend strongly on the test method. Three different laboratory tests for tensile strength of rocks are compared. Test methods employed are the Brazilian disc test (BDT), modified tension test (MTT) and hydraulic fracturing experiments with hollow cylinders (MF = Mini Frac). Lithologies tested are a micritic limestone, a coarse-grained marble, a fine-grained Ruhrsandstone, a medium-grained rhyolite, a medium- /coarse-grained andesite and a medium grained sandstone. Test results reveal a relationship between the area under tensile stress at failure and the measured tensile strength. This relationship becomes visible when the area under tensile strength ranges over one order of magnitude from 450 to 4624 mm2. This observation becomes relevant when selecting the tensile strength values of lithologies.
Skip Nav Destination
ISRM International Conference for Effective and Sustainable Hydraulic Fracturing
May 20–22, 2013
Brisbane, Australia
Comparison of Hydraulic and Conventional Tensile Strength Tests
Ferdinand Stöckert;
Ferdinand Stöckert
Ruhr-University Bochum
Search for other works by this author on:
Michael Alber
Michael Alber
Ruhr-University Bochum
Search for other works by this author on:
Paper presented at the ISRM International Conference for Effective and Sustainable Hydraulic Fracturing, Brisbane, Australia, May 2013.
Paper Number:
ISRM-ICHF-2013-033
Published:
May 20 2013
Citation
Molenda, Michael, Stöckert, Ferdinand, Brenne, Sebastian, and Michael Alber. "Comparison of Hydraulic and Conventional Tensile Strength Tests." Paper presented at the ISRM International Conference for Effective and Sustainable Hydraulic Fracturing, Brisbane, Australia, May 2013.
Download citation file:
Sign in
Don't already have an account? Register
Personal Account
You could not be signed in. Please check your username and password and try again.
Could not validate captcha. Please try again.
Pay-Per-View Access
$20.00
Advertisement
11
Views
Advertisement
Suggested Reading
Advertisement