Affection mechanism research of initiation crack pressure of perforation parameters of horizontal well

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• 作者：Hua Tong ; Ningning Wang ; Liangliang Dong ; Xiaohua Zhu ; ^{zxhth113@163.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Horizontal well ; Perforation parameter ; Initiation crack pressure ; Crack mechanism
• 刊名：Petroleum
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：2
• 期：3
• 页码：282-288
• 全文大小：1058 K

文摘

Horizontal wells show better affect and higher success rate in low water ratio cement, complex fracture zone, crevice and heavy oil blocks, it is the main measures to expand control area of a single well. Hydraulic fracturing technology is the most financial way to improve the penetration of the reservoir to increase the production. However, compare with the vertical wells, the fracture of Horizontal wells are more complex, and lead to the initiation crack pressure is much higher than vertical wells. In this paper, defined the crack judging basis, and established the finite element model which could compute the initial crack pressure, to research the affection mechanism of perforation azimuth angle, density, diameter and depth, to provide references of perforation project's design and optimize. The research of this paper has significances on further understanding the affection mechanism of perforation parameters.