METHOD TO RECOVER TIGHTNESS OF PRODUCTION COLUMN

摘要

FIELD: oil-and-gas production. ^ SUBSTANCE: proposed method consists in arranging 5-10 m-high sand bridging plug in well below production strip defect and above perforation. Then, solution of Portland cement "" 1-50, Microdur RU with water-to-cement ratio of 0.8-0.9 in amount of 0.5-2.0 m3 per 1 m of the bed effective thickness at the following ratio of components: Portland cement "" 1-50 - 26.1-27.5, Microdur RU - 26.0-27.4, sulphacell - 1.0-1.1, water - 44.0-46.9. ^ EFFECT: higher reliability of insulation in eliminating production string uptightness. ^ 1 tbl