- Title
- The failure behaviour of poorly cemented sands at a borehole wall using laboratory tests
- Creator
- Hashemi, Sam; Melkoumian, Nouné; Taheri, Abbas; Jaksa, Mark
- Date
- 2015
- Type
- Text; Journal article; Technical Note
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/170797
- Identifier
- vital:14206
- Identifier
-
https://doi.org/10.1016/j.ijrmms.2015.03.037
- Identifier
- ISBN:1365-1609
- Abstract
- Borehole stability analysis is an important challenge for researchers in the field of geotechnical, mining and petroleum engineering. Several borehole instability problems during or after the completion of drilling, have been reported by a number of exploration companies in Australia. Many of these problems are reported in drilling projects in poorly cemented sand formations at depths of up to 200 m beneath the ground. The sand production problem, as it is known, has also been observed in weakly bonded sandstones where the debonding of sand grains can be triggered by fluid pressure and induced stresses leading to the failure of the sandstone at the borehole wall. The strength of a granular material formation is generated mainly by a natural cementing agent that bonds sand grains together.
- Publisher
- Elsevier
- Relation
- International Journal of Rock Mechanics and Mining Sciences Vol. 77, no. (2015/07/01/ 2015), p. 348-357
- Rights
- Copyright Elsevier
- Rights
- This metadata is freely available under a CCO license
- Subject
- Borehole stability; Experimental study; Thick-walled hollow cylinder; Poorly cemented sand; Mechanical properties; 0905 Civil Engineering; 0914 Resources Engineering and Extractive Metallurgy
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