| 摘要 |
FIELD: well drilling technology. ^ SUBSTANCE: method includes forming a load on chisel due to unloading of portion of weight of heavy drilling pipes and supporting of given load during well drilling process with consideration of correction for suspension of mass of tensioned portion of drilling column. During drilling process torque is controlled as well as angle of turning of column on rotor, level of longitudinal and rotating oscillations of leading pipe, and reaction of pit-face and, on basis of these, load on chisel is given as well as speed of pushing of drilling tool. ^ EFFECT: higher effectiveness of drilling as well as prevention of heavy drilling pipes and chisels breakdowns. ^ 5 cl, 4 dwg, 1 ex |
