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METHOD FOR CHECKING CRACK GEOMETRY FOR MICROSEISMIC EVENTS

机译:检查微震事件的裂纹几何的方法

摘要

A method of performing a fracture operation is provided at a wellsite. The wellsite is positioned about a subterranean formation having a wellbore therethrough and a complex fracture network therein. The complex fracture network includes natural fractures, and the wellsite stimulated by injection of an injection fluid with proppant into the complex fracture network. The method involves generating wellsite data comprising measurements of microseismic events of the subterranean formation, modeling a hydraulic fracture network and a discrete fracture network of the complex fracture network based on the wellsite data, and performing a seismic moment operation. The method involves determining an actual seismic moment density based on the wellsite data and a predicted seismic moment density based on shear and tensile components of the simulated hydraulic fracture network, and calibrating the discrete fracture network based on a comparison of the predicted moment density and the actual moment density.
机译:在井场提供了一种执行压裂操作的方法。井场被定位在具有穿过其中的井眼和其中复杂的裂缝网络的地下地层周围。复杂裂缝网络包括天然裂缝,以及通过将注入支撑剂的注入流体注入到复杂裂缝网络中而刺激的井场。该方法包括生成包括对地下地层的微地震事件的测量的井场数据,基于井场数据对复杂裂缝网络的水力裂缝网络和离散裂缝网络进行建模,以及执行地震矩操作。该方法包括根据井场数据确定实际地震矩密度,并根据模拟水力压裂网络的剪切分量和拉伸分量确定预测地震矩密度,并根据预测矩密度和地震应变的比较来校准离散裂缝网络。实际力矩密度。

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