摘要
Abstract
The high energy gas fracturing often seriously burn through the cable. The cable upward movement will lead to cable knots, perforator blacked and dropout. The high energy gas fracturing string is composed of cable joints, fire prevention device, an ignition structure, sandwich structure and fracturing bullet. The fracturing string uses anti-burning rod component, which stops the high temperature and pressure gas, generated by fracturing bombs, from burning through the cable. Electric detonator or electric ignition wire adopts a circular rod end and the spring pressing connection to ensure the safe and reliable connection; the interlayer section adopts the core tube ignition structure to overcome many disadvantages of multilayer fracturing; the fracturing bullet ignites the main charge with high temperature gas through the link structure, thus maintaining the peak pressure duration and realizing secondary recovery. The string is simple in structure, easy in processing; the ignition device is safe and reliable, and ignition rate is completely successful. 45 fracturing perforations in 12 wells show that the string is practical and effective.关键词
高能气体压裂/仪器串/压裂弹/电缆/点火结构Key words
high energy gas fracturing/ tool string/ fracturing bomb/ cable/ ignition structure分类
天文与地球科学
