测井技术2025，Vol.49Issue(1)：130-138,9.DOI:10.16489/j.issn.1004-1338.2025.01.016
定向分簇射孔对套管外光纤的影响
Effect of Directional Cluster Perforation on the Outer Casing Fiber Optic
摘要
Abstract
To investigate the effect of directional clustered perforation operations on the outer casing fiber optic,reduce the fiber optic damage rate and ensure the success rate of directional cluster perforation operations,a three-dimensional simulation is conducted using Abaqus numerical simulation software.A numerical model of the perforation charge,perforation gun,and casing is established to analyze the stress variation on the outer casing wall after cluster perforation.Combined with surface target shooting and field tests,the impact of different perforation charge specifications,perforation direction,and the angle between the perforation and fiber optic on the casing wall is studied to assess the effects of metal jets and shock waves on the outer casing fiber optic.Through numerical simulations and field tests,the safe zone and no-shooting zone angle ranges for casings with dimensions of 139.70 mm×12.70 mm,139.70 mm×7.72 mm,114.30 mm×8.56 mm and 114.30 mm×6.88 mm are determined,reducing the risk of fiber optic damage during the perforation process.The study shows that positioning the fiber optic at specific angles can significantly reduce the damage probability.The field test results are highly consistent with the simulation,verifying the accuracy of the numerical simulation results.The research provides theoretical guidance for the safe deployment of fiber optics during perforation operations and is of significant importance for ensuring the integrity and safety of the outer casing fiber optic.关键词
射孔/套管/Abaqus软件/数值模拟/现场试验/光纤损伤Key words
perforation/casing/Abaqus software/numerical simulation/field test/fiber optic damage分类
天文与地球科学引用本文复制引用
孙宪宏,魏玉阳,赵新宇,谢超,王萌禾,乔晓光,严星..定向分簇射孔对套管外光纤的影响[J].测井技术,2025,49(1):130-138,9.基金项目
国家自然科学基金项目"非均质强塑性陆相页岩油储层水力复杂裂缝扩展机理研究"(52274036) （52274036）
国家自然科学基金项目"陆相页岩油储层复杂裂缝控近扩远机制研究"(52404027) （52404027）
