Fracturing process pretreatment method for ensuring shale oil fracturing construction success rate

The invention relates to the technical field of shale oil fracturing construction, in particular to a fracturing construction technology pretreatment method capable of guaranteeing the shale oil fracturing construction success rate. The method comprises the following steps: carrying out pre-pressing...

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Bibliographische Detailangaben
Hauptverfasser: LI YINGYING, HE JIAN, DUAN YANQING, ZHANG HAILONG, LIU XIAOMING, TAO FEIYU, WANG JUNLEI, LIN QINGXIANG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to the technical field of shale oil fracturing construction, in particular to a fracturing construction technology pretreatment method capable of guaranteeing the shale oil fracturing construction success rate. The method comprises the following steps: carrying out pre-pressing acid extrusion treatment on shale oil mud; based on a material erosion theory and an in-crack fluid flow model, a low sand ratio slug stage construction parameter dynamic optimization adjustment model is established; measuring the elastic modulus and Poisson's ratio of the reservoir core through an indoor rock mechanics experiment; measuring the viscosity and density of the fracturing fluid; obtaining the elastic modulus, Poisson's ratio and diameter of the proppant particles; and substituting the obtained parameters into the model in the step 2, and obtaining the propping agent concentration and the fracturing fluid viscosity which can ensure the maximization of the ER erosion efficiency in combination with the s