水平井大规模分段压裂施工工艺配套与应用

目前,在国内外页岩气藏及致密砂岩油藏等非常规油气资源开发中,主要采用长水平井分段实施大规模加砂压裂来形成多裂缝,沟通天然裂缝,为油气移运创造通道,以提高油气井单井产能。通过对相关技术攻关,形成了施工设备组配优化、压裂液快速配制、支撑剂连续输送、高低压流程控制、数据采集与远程控制等大规模压裂施工配套技术,基本能满足施工排量大、施工规模大、作业时间长、一次压裂多段的施工要求。"交叉式"压裂施工,为下步"井工厂"压裂施工奠定基础。

Application of Large-Scale Staged Fracturing Matching Technology in Horizontal Wells

Developing unconventional oil and gas resource in shale gas reservoir and tight sandstone reservoir both at home and abroad is depending upon large--scale staged sand fracturing on long horizontal wells for forming more fis- sures, connecting natural fractures and creating channel for oil--gas migration so as to increasing individual oil--gas well deliverability. Through tackling key technical problems, large--scale fracturing matching technology has taken shape, including assembly optimization of operation equipment, rapid preparation of fracturing fluid, continuous transport of proppant, high--low pressure process control, data acquisition and long--range control. The matching technology is able to meet the operation requirements for large operation displacement, large--scale operation, long operating hours and multiple--stage fracturing at a time. Cross--type fracturing lays the foundation for well factory fracturing operation.