Abstract
In this paper, we build an aggregative model to calculate the rock fracture pressure by the theory of double effective stress of porous medium; it takes into account such factors as the crustal stress field, chemical field, temperature field, the porosity of rock, seepage of drilling fluid, and so on. As the parameters of the model take different values, the model can predict the fracture pressure of different types of rocks under different geological conditions. Combined with the experimental data of field fracturing and the experimental results of three-axial compression of rock core with different water contents, the results show that the error of the this paper’s model is 4.39% compared with the measured value, which provides technical support for drilling engineering.
Copyright 2018, Shaanxi Petroleum Society.
This paper was prepared for presentation at the 2018 International Field Exploration and Development Conference in Xi’an, China, 18–20 September, 2018.
This paper was selected for presentation by the IFEDC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC Committee and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC Committee, its members. Papers presented at the Conference are subject to publication review by Professional Committee of Petroleum Engineering of Shaanxi Petroleum Society. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of Shaanxi Petroleum Society is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC. Contact email: paper@ifedc.org.
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Acknowledgements
The present work is supported by National Natural Science Foundation of China (Grant No.51674200, 51704233 and 51704237).
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Xiaojiao, Z., Zhan, Q., Xiaofeng, X., Xiaocong, Y., Heng, F. (2020). Calculation Model of Rock Fracture Pressure Under Multifield Coupling Action. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2018. IFEDC 2018. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-7127-1_25
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DOI: https://doi.org/10.1007/978-981-13-7127-1_25
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