Kang-Xing Dong1, Su-Ling Wang 1 and Min-Zheng Jiang1
1College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, P.R. China
Received:
November 27, 2017
Accepted:
September 11, 2018
Publication Date:
March 1, 2019
Download Citation:
||https://doi.org/10.6180/jase.201903_22(1).0004
ABSTRACT
Single plane perforation technology is a new perforation technology to improve results in the fracture area around a wellbore. By establishing an in-situ stress mechanical model of the perforated formation, the effect of single plane perforation and helical perforation on hydraulic fractures was studied using numerical analysis methods. The results showed that a fracture was initiated in the perforation plane first and then formed a fan-shaped fracture surface when using single plane perforation. Regardless of the damage of perforation on the rock mass, the initiation pressure of the single plane perforation was higher than that of the helical perforation under a normal fault regime and lower under a reverse fault regime. The initiation pressure decreased with an increase in perforation depth and perforation diameter. This technology is important for reducing the fracture initiation pressure and increasing the stimulated reservoir volume.
Keywords:
Single Plane Perforation, Helical Perforation, Perforation Parameters, Cracks Form, Initiation Pressure
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