论文成果

Numerical Analysis on Casing Deformation During Hydraulic Fracturing of Deep and Tight Volcanic Reservoir

摘要:Deep volcanic reservoirs are characterized by tight, low permeability formations that require high fracture pressures to be broken. However, a common issue is the inability to break the formation, leading to potential casing deformation. A casing-cement-formation system was analyzed in this study based on ABAQUS using the finite element method, considering the factors such as well diameter, cement quality, casing grade and wall thickness. The results showed that after changing the well diameter, steel grade and wall thickness of the casing, the mises stress of the casing varied below 30%, indicating that the casing was safe under different working conditions with good quality cement. However, in the condition of poor cement quality, casing deformation may occur in all conditions except when the cement missing angle is small. The stress concentration due to poor cement quality increased the possibility of casing deformation, with the maximum mises stress occurring when the loss angle was between 60° and 120°. In addition, a chart of the safety internal pressure of the casing during hydraulic fracturing has been constructed. This study can serve as a guide for hydraulic fracturing technology in deep tight volcanic rock reservoirs, and offer a reference for selecting casing grades and well thicknesses. ? 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

ISSN号:2211-0984

卷、期、页:v 143,p993-1007

发表日期:2024-01-01

收录情况:EI(工程索引)

发表期刊名称:Mechanisms and Machine Science

参与作者:贾国超,孙翰文,田传东

通讯作者:惠峥洵

第一作者:刘伟

论文类型:会议论文

论文概要:惠峥洵,刘伟,贾国超,孙翰文,田传东,Numerical Analysis on Casing Deformation During Hydraulic Fracturing of Deep and Tight Volcanic Reservoir,Mechanisms and Machine Science,2024,v 143,p993-1007

论文题目:Numerical Analysis on Casing Deformation During Hydraulic Fracturing of Deep and Tight Volcanic Reservoir