井漏是多裂缝地层钻井作业中经常发生的复杂情况之一。
Lost circulation is often happened during drilling in multi -fracture formation.
结论为：射孔对水力压裂改造中的多裂缝现象具有重要的影响和支配作用。
It is concluded in this paper that the perforation will effectively influence and control the multi fractures during hydraulic fracturing.
探讨了单裂缝与均布多裂缝情况下，裂缝深度、裂缝形状，厚壁筒壁率、裂缝数目等特性参量对裂缝尖端附近奇异场的影响。
The effect of crack depth, crack shape, wall thickness ratio, the number of cracks etc. on singular stress field near the crack tip is investigated.
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