The Research on the Model of the Multi-Interval Fracturing of Horizontal Wells

AI Chi, YU Jian, LIU Yazhen, LI Shuang

Abstract


Multi-interval fracturing technology in horizontal well are used more and more widely in the exploitation of unconventional hydrocarbon resources, to accurately determine the initiation pressure having an important significance to improve the fracturing effect. On the basis of the homogeneous and isotropic two-dimensional plane strain model, established the geometric model of two-dimensional vertical fractures induced stress field; Based on rock mechanics and elastic mechanics theory, taking multi-stage fracturing induced stress into consideration, established the calculation model of the initiation pressure of the multi-stage fracturing of horizontal wells’ fracture. The calculation results showed that taking induced stress into consideration, the calculation result is consistent with the actual situation, compared with the actual construction pressure, and the average accuracy rate is 95.15%. It proved that this model can be used for calculating the initiation pressure of the multi-interval fracturing of horizontal wells’ fracture.
Key words: Horizontal well; Multistage fracture; Initiation pressure; Induced stress

Keywords


Horizontal well; Multistage fracture; Initiation pressure; Induced stress

Full Text:

PDF

References


[1] Yew, C. H., & Li, Y. (1988). Fracturing of a deviated wells. SPE Production Engineering, 3(4), 429-437.

[2] Aadnoy, B. S., Rogaland, U., & Larson, K. (1987). Method for fracture-gradient prediction for vertical and inclined boreholes. SPE Drilling Engineering, 4(2), 99-103.

[3] Chen, M., Chen, Z. X., & Huang, R. Z. (1995). The research on the hydraulic fracture of the high inclination well. Journal of China University of Petroleum, 19(2), 30-35.

[4] Emanuele, M. A., Minner, W. A., & Weijers, L. (1998, May). A case history: completion and stimulation of horizontal wells with multiple transverse hydraulic fracture in the lost hills diatomite. SPE Western Regional Meeting. Bakersfield, California.

[5] Crasby, D. G., Rahman, M. M., Rahman, M. K., & Rahman, S. S. (2002). Single and multiple transverse fracture initiation from horizontal wells. Journal of Petroleum Science and Engineering, 35(3-4), 191-204.

[6] Lv, Z. K., He, S. L., Luo, F. P., et al. (2011). The theoretical research on the initiation pressure of staged fracturing perforated horizontal well. Petroleum Drilling Techniques, 39(7), 72-76.

[7] Xu, Y. B. (2004). The foundation of theoretical analysis of the horizontal well hydraulic fracturing (Doctoral dissertation). Southwest Petroleum University, Chendu.

[8] Wang, J. B. (2010). The research on the horizontal well fracturing crack initiation and extension rules (Doctoral dissertation). Southwest Petroleum University, Xi’an.




DOI: http://dx.doi.org/10.3968/j.aped.1925543820140701.1863

Refbacks

  • There are currently no refbacks.


Copyright (c)



Share us to:   

Reminder

 We are currently accepting submissions via email only.

The registration and online submission functions have been disabled.

Please send your manuscripts to aped@cscanada.net，or  aped@cscanada.org  for consideration. We look forward to receiving your work.

 

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). 

ADVANCES IN PETROLEUM EXPLORATION AND DEVELOPMENT Editorial Office

Address:1055 Rue Lucien-L'Allier, Unit #772, Montreal, QC H3G 3C4, Canada.

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

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