摘要
为了保障高温低渗储层射孔作业的安全性和可靠性,超高温条件下针对89型、127型射孔弹开展了超高温射孔穿靶实验及枪型、穿深、孔密和相位优化对比研究。结果表明:相较于89型射孔弹,127型射孔弹的穿透效果好;LLM-105装药的射孔弹性能优于PYX和HNS,LLM-105装药的89型射孔弹较PYX射孔弹,穿深提高19.2%,孔径提高33%,较HNS射孔弹,穿深提高42%,孔径提高30%;127型超高温弹配备LLM-105弹药在装药量少的情况下,穿深相比于PYX弹药提高32.4%,φ177.8 mm套管孔径增加5.2%,LLM-105能够大幅度地提高超高温射孔的可靠性、扩展油气通道。以A2井的井身结构和地质参数为基础,对LLM-105装药的射孔弹孔密、相位、孔径等关键参数进行敏感性分析,合理调整参数,极大地释放了产能,射孔实施后A2井产量为配产的2倍,这对于类似条件下射孔弹的选型、炸药的选择和应用具有指导意义和参考价值。
In order to ensure the safety and reliability of perforation operations in high-temperature and low-permeability reservoirs,ultra-high temperature perforation target experiments and comparative studies of gun type,depth penetration,hole density and phase optimization of type 89 and 127 perforated projectiles were carried out under ultra-high temperature conditions.The results show that compared with the type 89 perforating projectile,the perforated projectile of Type 127 has a better penetration effect.The perforated elastic energy of LLM-105 charge is better than that of PYX and HNS,and the Type 89 perforated projectile of LLM-105 charge is 19.2%higher than that of PYX perforated projectile,and the aperture is increased by 33%,and the penetration depth is increased by 42%and the aperture diameter is increased by 30%compared with the HNS perforated projectile.The Type 127 ultra-high temperature ammunition is equipped with LLM-105 ammunition,which increases the penetration depth by 32.4%compared with the PYX ammunition and the aperture ofφ177.8 mm casing by 5.2%under the condition of small charge,LLM-105 can greatly improve the reliability of ultra-high temperature perforation and expand the oil and gas channel.Based on the wellbore structure and geological parameters of well A2,the sensitivity analysis of key parameters such as perforation bore density,phase and aperture of LLM-105 charge was carried out,and the parameters were reasonably adjusted,which greatly released the production capacity,and the output of well A2 after the implementation of perforation was twice that of the production of the auxiliary production,which has guiding significance and reference value for the selection of perforated projectiles,the selection and application of explosives under similar conditions.
作者
肖波
孙龙波
刘贤玉
邓华根
谢茂成
XIAO Bo;SUN Long-bo;LIU Xian-yu;DENG Hua-gen;XIE Mao-cheng(Hainan Branch of CNOOC Ltd.,Haikou 570100,China;Zhanjiang Branch of CNOOC Ltd.,Zhanjiang 524057,Guangdong,China;Hainan Branch of CNOOC Development(Chengmai)Energy Technology Co.,Ltd.,Haikou 570100,China)
出处
《工程爆破》
CSCD
北大核心
2023年第5期120-125,共6页
Engineering Blasting
基金
南海西部油田上产2000万方钻完井关键技术研究基金资助项目(CCL2021ZJFN0503B01)
海上超高温高压钻完井关键工具装备研发基金资助项目(CCL2022HNFN0475)。
关键词
超高温
低渗储层
射孔弹
穿透性能
射孔技术
ultra high temperature
low permeability reservoir
perforation bomb
penetration performance
perforation technology
