和技术差的负压射孔油田的应用技术研究研究论文杏树岗射孔枪射孔弹 浙江大学硕士学位论文 ABSTRACT ABSTRACT Fortheneedsofstableproduction,inrecent years,exploiting thethin and poorreservoirandlow permeabi 1 ityreservoir iSalwaysthekeysubject. Sinceit enteredthelate high watercut stage,the 1i thologic characte...