| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8129167 | Journal of Natural Gas Science and Engineering | 2014 | 5 Pages |
Abstract
On the basis of analyses of thermal stresses induced by the frictional heating of drill bit and the cooling by gas expansion, this study reveals that the thermal effect on rock failure in gas drilling is significant. It is understood that both the frictional heating and the gas cooling can promote rock failure. However it not clear how the gas cooling will affect the frictional heating in the rock failure process. The thermal failure of rock is a complex process that requires further investigations by the means of experimental studies.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth and Planetary Sciences (General)
Authors
Jun Li, Boyun Guo, Shunji Yang, Gonghui Liu,