Construction Cycle Decreased的意思|示意

建周期明显缩短 The studies and applications of 8 new drilling techniques in Shengli Oilfield are presented, i.e. , oriented drilling technique, new type of bits, drilling engineering software, new drilling fluids, new solid control techniques, new type of nozzles, multiple drilling techniques and borehole quality control techniques. Compared with that in 1997, drilling rate has been obviously improved, construction cycle decreased, and economical and social benefits are remarkable, which is worthy of popularization and application.