Mechanism and Application Effect of Compound Perforation Fracturing Technology in Low Permeability Reservoir

Abstract:

Compound perforation fracturing technology is a space combination type ultra-deep perforating that can overcome some flaws conventional perforation has, such as shallow penetration and compaction damage. It can remove the compaction band and near wellbore pollution in rock matrix which results from conventional perforation. This paper introduces the theory of effect and influence factor of compound perforation fracturing technology and summarize the advantages for low permeability gas well on the basis of analyzing the mechanism of action about increase production of compound perforation. In order to evaluate the effects of application of this technology in in low permeability reservoir, 11 compound perforation wells and 12 conventional perforation wells were selected which have the similar physical property and the evaluation was conducted in two blocks. The results show that compound perforation can make the formation fracture pressure decrease in 3~5MPa and increase the permeability near the perforation channel. This technology has better effects than the conventional and decrease the cost effectively, improving production in low permeability oil and gas field.

• Periodical: Applied Mechanics and Materials (Volumes 675-677)
• Pages: 1500-1504
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.675-677.1500
• Online since: October 2014
• Authors: Zeng Li Xiao, Yong Jie Fan, Jun Bin Chen
• Keywords: Compound Perforation, Effect of Application, Increase Production, Low-Permeability Reservoir

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