METHOD OF WELL CASING AND CEMENTING OF HORIZONTAL SECTION

摘要

drilling wells; well casing and cementing. SUBSTANCE: casing string is lowered in horizontal section of wellbore. Then cement slurry of rated density and volume is pumped-in. Casing string is assembled from light alloy casing pipes. After pumping-in the cement slurry, displacing fluid is pumped-in in volume sufficient for filling the internal volume of casing string run into horizontal section of wellbore. Density of displacing fluid is determined from analytical expression. EFFECT: improved quality of cementing casing string. 1 ex