CAJ | 학술논문

结合北美页岩气藏体积改造实践与裂缝监测成果，全面阐述了缝网压裂的力学控制条件：岩石脆性指数是多点起裂而形成多裂缝的基础，发育良好的结构弱面（节理与天然裂缝）是形成网络的必要条件，储层水平主应力差与天然裂缝逼近角是诱发缝网的控制条件，低渗–致密储层是采用缝网压裂的前提。阐述了形成缝网的工艺条件：低黏流体是诱发复杂裂缝网络的前提，较高净压力（系数）是提高缝网波及区域的工艺手段；对比了常规压裂与缝网压裂改造理念的的差异，为正确判别和使用缝网压裂提供了思路。明确提出了缝网压裂的控制条件，对于指导缝网压裂实践具有重要的指导意义。
결합북미혈암기장체적개조실천여렬봉감측성과，전면천술료봉망압렬적역학공제조건：암석취성지수시다점기렬이형성다렬봉적기출，발육량호적결구약면（절리여천연렬봉）시형성망락적필요조건，저층수평주응력차여천연렬봉핍근각시유발봉망적공제조건，저삼–치밀저층시채용봉망압렬적전제。천술료형성봉망적공예조건：저점류체시유발복잡렬봉망락적전제，교고정압력（계수）시제고봉망파급구역적공예수단；대비료상규압렬여봉망압렬개조이념적적차이，위정학판별화사용봉망압렬제공료사로。명학제출료봉망압렬적공제조건，대우지도봉망압렬실천구유중요적지도의의。
In this paper,by combining the practice shale reservoir volume stimulation with microseism fracture monitoring and observation in North America,we discuss the mechanics controlling conditions of controlling network cracks at hydraulic fracturing treatment. Rock brittleness index is fundament of inducing initiation points and multi-fractures;well-grown struc-ture weak planes(such as joints and natural fissures)are necessary conditions of inducing networks;horizontal stress con-trast in reservoir formation and intersect angle of natural fracture are principal controlling conditions of induced network;low-permeability tight reservoirs are the precondition applying network hydraulical fracturing. Technology conditions were expounded as follows:low-viscosity fluid is necessary for inducing the network fracture,and higher net pressure(factor)is an important technic measure to increase the affected area of network fractures. Lastly,stimulation design ideas differences from conventional and non-conventional hydraulic fracturing are compared,so new ideas for correctly judgment and application network fracturing,it is important to guiding the practice of hydraulically network fracturing.