NCS压裂滑套在海上大规模压裂适用研究与分析

Research and Analysis About Application of NCS Fracturing Sleeve in Large-scale Fracturing on Offshore

海上大规模压裂需要提高现有压裂工艺作业时效,保证压裂作业连续性。新型完井压裂滑套可大幅提高作业时效,并快速处理井下复杂情况,保证作业连续性。基于海上作业环境,合成了一种抗盐乳液稠化剂,研发海水基一体化压裂液体系,同时配合支撑剂连续输送装置和套管回接技术,保证压裂材料连续供给,满足环空大排量作业。新型完井压裂滑套适合于海上水平井大规模压裂并具有广泛的应用前景。

Large-scale offshore fracturing requires reducing operating time,ensuring the continuity of fracturing operation.The new completion system fracturing sleeve can significantly reduce the time of operation and quickly handle complex down hole conditions.Based on the offshore environment,synthesized a salt-resistant emulsion thickener and developed of seawater based integrated fracturing fluid system,combined with continuous proppant transport and casing tieback,which ensures continuous fracturing material supply and meet the need of high-volume annulus pumping.The new completion system fracturing sleeve is suitable for large-scale fracturing of offshore horizontal well and has a wide application prospect.