Experimental Study on Borehole Collapse



In order to observe wellbore collapse process visually, by using the real triaxial simulation experiment system, the borehole enlargement rate and the borehole collapse changing laws were tested through exerting triaxial stress on the samples under different conditions including the stress state, deviation angle and azimuth of the wellbore. The results show that the borehole enlargement rate increases with the increase of vertical crustal stress and azimuth angle, while formation stability decreases with them; and the borehole enlargement rate decreases with the increase of deviation angle, while formation stability increases with them. The conclusion could provide references for the field drilling operation.


Borehole collapse; Deviation angle; Azimuth angle; Experimental study

Full Text:



[1] Cheng, Y. F., & Xu, T. T. (1996). Determination and application of the safe mud density window. Petroleum Drilling Techniques, 27(3), 16-18.

[2] Wang, G. H., & Xu, T. T. (2005). Reo-mechanics analysis for borehole stability. Drilling & Production Technology, 28(2), 7-10.

[3] TAN, C. P., Rahman, S. S., Richards, B. G., & Mody, F. K. (1998, July). Integrated rock mechanics and drilling fluid design approach to manage shale instability. Paper presented at Proc. SPE ISRM Eurock Conf., Trondheim, Norway.

[4] Aadnoy, B. S. (1998, March). Geomechanical analysis for deep-water drilling. Paper presented at IADC/SPE Drilling Conference, Dallas, Texas.

[5] Wang, J. F., & Deng, J. G. (2000). Numerical simulation of borehole collapse procedure and prediction on well-hole enlargement. Petroleum Drilling Techniques, 28(6), 13-14.

[6] Li, J., Chen, M., Jin, Y., & Zhang, G. Q. (2003). The three-dimensional FEM model for directional well borehole stability analysis. Petroleum Drilling Techniques, 31(5), 33-35.

DOI: http://dx.doi.org/10.3968/8046


  • There are currently no refbacks.

Copyright (c) 2015 Advances in Petroleum Exploration and Development

Share us to:   


  • How to do online submission to another Journal?
  • If you have already registered in Journal A, then how can you submit another article to Journal B? It takes two steps to make it happen:

1. Register yourself in Journal B as an Author

  • Find the journal you want to submit to in CATEGORIES, click on “VIEW JOURNAL”, “Online Submissions”, “GO TO LOGIN” and “Edit My Profile”. Check “Author” on the “Edit Profile” page, then “Save”.

2. Submission

  • Go to “User Home”, and click on “Author” under the name of Journal B. You may start a New Submission by clicking on “CLICK HERE”.

We only use three mailboxes as follows to deal with issues about paper acceptance, payment and submission of electronic versions of our journals to databases:
caooc@hotmail.com; aped@cscanada.net; aped@cscanada.org

 Articles published in Advances in Petroleum Exploration and Development are licensed under Creative Commons Attribution 4.0 (CC-BY)


Address:1020 Bouvier Street, Suite 400, Quebec City, Quebec, G2K 0K9, Canada.

Telephone: 1-514-558 6138
Website: Http://www.cscanada.net
E-mail:office@cscanada.net;  office@cscanada.org

Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures