To overcome the resistance caused by compaction effect

Oil (water) wells drilled, causing stress redistribution, borehole stratigraphy affected stress increased compaction effects occur, rock fissures occur in varying degrees within the pores closed, so that the formation of porous and fractured connecting  synthetic diamond powder  becomes too narrow, permeability reduction, fluid flow resistance increases, flow rate, flow rate decreases, oil production wells, water injection wells decreased. Especially late in oilfield development,  cubic boron nitride  drops, not enough to overcome the resistance caused by compaction effects, crude oil can not flow into the wellbore by a borehole formed within the dead wells, thus eliminating the oil wells near wellbore compaction effect, restoring the original formation some penetration as well stimulation, well stimulation, enhanced oil recovery essential way.