Abstract
Temporary plugging and diverting fracturing is an important method for oil and gas reservoirs stimulation, in which the temporary plugging agent (TPA) plays a vital role. The degradability and plugging performance of JRS-1 fiber TPA and QXD-1 granular TPA were evaluated by the self-designed experimental device. Meanwhile, the fiber TPA and the granular TPA were mixed into a new type of composite TPA. The mixing ratio of fiber and granule was further optimized according to the plugging performance. The results show that the fiber and granule both can be degraded more than 95%, the degradation speed meets the construction requirements, and the damage to reservoir is small. Both the fiber and granular TPA can block the simulated fracture. When the fiber and granule in the composite TPA account for 35–45 wt% and 55–65 wt%, respectively, the plugging effect is better than that of the fiber or granule used alone. When the ratio of the fiber and granule is 40 and 60 wt%, respectively, its plugging performance is the best, and the composite temporary plugging layer can stand the pressure up to 7 MPa above. The results can provide reference for improving the diverting fracturing effect.
Copyright 2018, Shaanxi Petroleum Society.
This paper was prepared for presentation at the 2018 International Field Exploration and Development Conference in Xi’an, China, September 18–20, 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 are 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
This work is partially funded by the National Natural Science Foundation of China (Grant No. 51674278) and the National Science and Technology Major Project of China (Grant No. 2016ZX05034001-007 and 2017ZX005030005).
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Ma, H. et al. (2020). Performance Evaluation and Optimization of Temporary Plugging Agent Used in Diverting Fracturing. 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_10
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