测井技术2017，Vol.41Issue(3)：378-382,5.DOI:10.16489/j.issn.1004-1338.2017.03.024
等孔径射孔弹数值模拟与试验研究
Numerical Simulation and Experimental Research on Equal Hole Shaped Charge
鲁坤 1李必红 1赵云涛 1王喜 1段嘉庆 1周明1
作者信息
- 1. 西安物华巨能爆破器材有限责任公司,西安 710061
- 折叠
摘要
Abstract
The jet form under ultimate gun loaded condition in wellbore between 3 1/2 in equal hole (EH) shaped charge and conventional DP charge was compared with the numerical simulation method, and the stability of entry hole diameter of two types of the charges was compared by ground numerical testing.The numerical simulation results show that the liner of the former charge produced a length of high speed rod-shaped jet that was not easily affected by explosion height relative to the later which produced spindly taper jet from the head and big slug from the end during penetrating in steel target.The ground numerical testing results show that the average entry hole diameter on casing of the former charge was 12.3 mm and the compatibility reached to 96.7%, the average entry hole diameter improved 2.3 mm and compatibility improved by 20.4%, which proved that the EH charge has bigger entry hole diameter and better compatibility and the numerical simulation is accurate.The average penetration of 3 1/2 in EH charge in concrete target was 755 mm, which show the deep penetration of charge.关键词
射孔技术/等孔径/射孔弹/杆式射流/数值模拟Key words
perforation technology/equal hole (EH)/shaped charge/rod-shaped jet/numerical simulation分类
天文与地球科学引用本文复制引用
鲁坤,李必红,赵云涛,王喜,段嘉庆,周明..等孔径射孔弹数值模拟与试验研究[J].测井技术,2017,41(3):378-382,5.
