文档介绍：第 49 卷 第 4 期 天 津 科 技 Vol.49 No.4
en gradually formed by integrating
multiple technologies such as hydraulic abrasive perforating, gravel packing and segmented water control screens. The prob-
lems of low production and low efficiency of old horizontal wells have been effectively solved.
Key words：sand production；high clay proportion；abrasive perforating；water and sand control；recompletion