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Miscellanea Views: 775 Downloads: 624 Vol. 8, No. 27 (2014) December 23, 2013 pp. pages 74-82

Research on borehole stability of shale based on seepage-stress-damage coupling model

Xiaofeng Ran, Yuezhi Wang, Shanpo Jia

In oil drilling, one of the most complicated problems is borehole stability of shale. Based on the theory of continuum damage mechanics, a modified Mohr-Coulomb failure criterion according to plastic damage evolution and the seepage-stress…

10.3221/IGF-ESIS.27.09

Details: Research on borehole stability of shale based on seepage-stress-damage coupling model PDF

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Miscellanea Views: 1,043 Downloads: 656 Vol. 12, No. 45 (2018) June 16, 2018 pp. 86-99

Investigation method of borehole collapse with the multi-field coupled model during drilling in clayey silt hydrate reservoirs

Qingchao Li, Yuanfang Cheng, Qiang Li, Fuling Wang, Chuang Zhang, Chuanliang Yan

The global reserves of natural gas hydrates are extremely abundant, which is attracting more and more scientists’ attention. However, hydrate reservoirs are usually clayey silt hydrate reservoirs with low strength, borehole collapse is a…

10.3221/IGF-ESIS.45.07

Details: Investigation method of borehole collapse with the multi-field coupled model during drilling in clayey silt hydrate reservoirs PDF Visual Abstract

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Research on borehole stability of shale based on seepage-stress-damage coupling model

Investigation method of borehole collapse with the multi-field coupled model during drilling in clayey silt hydrate reservoirs