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针对低渗透油田的开发问题,水平井钻井技术发展和建井成本的降低,使得水平井技术成为有效开采低渗透油藏重要手段之一。而原有的封隔器分层压裂技术对常规水平井(特别是长裸眼水平井)不适用,会带来多余的多重压裂裂缝,获得的裂缝常常仅出现在水平段两端,大部分水平井段得不到改造,且其施工过程需要机械封隔装置,施工时间长。本文中所介绍的水力喷射压裂技术
In view of the development of low permeability oilfield, the development of horizontal well drilling technology and the reduction of well construction cost make horizontal well technology an important means of effective exploitation of low permeability reservoirs. However, the original packer fracturing technology is not suitable for conventional horizontal wells (especially long-hole horizontal wells), which will result in redundant multiple fractures. The fractures obtained often only appear at both ends of the horizontal section Some horizontal well sections can not be rebuilt, and the construction process needs mechanical isolation device, and the construction time is long. This article describes the hydraulic jet fracturing technology