APPARATUS TO PACK CASING-HEAD STUFFING BOX Russian patent published in 2003 - IPC

FIELD: oil and as industry, attendance to casing-head stuffing boxes. SUBSTANCE: apparatus is equipped with bullet coming in the form of cylindrical bar with open longitudinal mouth. Cylindrical bar is fitted with pair of side handles placed at same angle one opposite another. Apparatus includes flat linkwork in the form of tetragon symmetric relative to central diagonal. Handle which direction of motion coincides with central diagonal of tetragon put on continuation of central diagonal on one side behind hinge. On other side free ends of sides of tetragon are fitted with semi-bushings forming cylinder. Internal surface of semi-bushings includes upper conical and lower location parts accomplished according to diameter of box space and outer diameter of its body correspondingly. Open longitudinal mouth of bar is made to accommodate mouth rod and its outer diameter corresponds to diameter of box space. EFFECT: increased labor productivity in process of packing of casing-head stuffing box of oil and gas producing well. 6 dwg