新型套管井多级压裂技术

On New Cased-Hole Multistage Fracturing Technology

新型连续油管操控的套管井用压裂滑套完井系统(简称CT压裂滑套系统)通过可以拖动方式,实现套管水平井多级加砂压裂,替代常规投球固定层段方式。该系统有明显的技术先进性,主要包括:更好的施工控制,处理级数不受限制,提高储层泄油/气能力。将其应用于江汉油田水平井多级加砂压裂旨在提高措施效率,降低施工成本。

A new coiled--tubing--enabled completion for cased--hole fracturing （CT for short） helps achieve multi- stage sand fracturing of cased horizontal wells by means of drag mode instead of interval setting through conventional ball--off. This system is advanced in better construction control, unconstrained steps processing and better oil or gas drainage and applied to multistage sand fracturing of horizontal wells in Jianghan Oilfield with the purpose of impro- ving measures efficiency and reducing operational cost.