THE DEFLAGRATION FRACTURING THCHNOLOGY AND ITS APPLICATION

The fractures produced by the deflagration fracturing technology do not be controled by the ground stress.They are radial cracks distributed around the wellbore.The fracture length is usually from 2 to 10m.The"neck region" resistance force near the wellbore of radial flow is reduced effectively.It cannot only treat formation in"all directions".but also have a obvious increasing production results.The tubing distribution of bullets,water-column press and block,and knock-on ignition technology based on many tests can be completed by the conventional workover team without the large or special equipments,and can also be done while the check of downhole pump.Therefore,the said technology is applied in increase production of a oil well,increase injection of a water well,repeated fracturing of a old-well,and the pre-processing for other large-scale treatment.