CALCULATION OF GEOMETRIC PARAMETERS THE LATERAL WELLBORE

Increasing volumes of drilling lateral branches trunks, using the main also put forward need to solve a number new problems. Among them, there are small radial gaps between production string or liner and wall wellbore, which make it difficult ensure tightness annulus. The problem is exacerbated by fact that on an inclined horizontal section always eccentrically displaced relative axis well. Therefore, ensuring required quality sealing may require continuous local expansion trunk. Keywords: Borehole, drilling, tightness, descent lifting operations, chisels, side barrel.