作者: Cornelis Jan Kenter , Robert Nicholas Worrall , Andreas Bloess , Erik Kerst Cornelissen , Martin Gerard Rene Bosma
DOI:
关键词: Wellbore 、 Granular material 、 Slurry 、 Particle 、 Geology 、 Radial Force Variation 、 Petroleum engineering 、 Carrier fluid 、 Geotechnical engineering
摘要: A method of creating a zonal isolation above target zone (4) in an underground wellbore (1) comprises: inserting slurry injection tubing (3) into the wellbore; arranging within annular space surrounding said particle accumulation means (5), such as expandable screen or area where velocity is reduced; and pumping comprising carrier fluid granular material down via then up space, that at least some accumulates forms elongate (10) between means, which removable exerts limited radial force to formation, thereby reducing risk formation damage.