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要成功地设计水平井压裂工艺,就需要确切地了解水平管中浆液的输送。本文提出了水平管中各种水力压裂浆液的输送问题的研究结果。其中,收集了三种透明的不同直径的水平管中的流动数据,使用了线型胶和交联型压裂胶,研究了管子尺寸、聚合物呈胶剂浓度、流体流变性、交联作用、支撑剂尺寸和密度及浓度、流体密度和浆液泵排量对临界沉淀速度(CDV)和临界再悬浮速度(CRV)的影响,进而提出了估算压裂浆液的临界沉淀速度和临界再悬浮速度的公式。
To successfully design a horizontal well fracturing process, you need to know exactly how the slurry is being delivered in a horizontal tube. This paper presents the results of research on the transport of various hydraulic fracturing slurries in horizontal tubes. Here, the flow data in three types of transparent tubes of different diameters were collected, and linear and cross-linked fracturing pastes were used to study the effects of tube size, polymer concentration in the paste, fluid rheology, cross-linking , Proppant size and density and concentration, fluid density and slurry displacement on critical precipitation velocity (CDV) and critical resuspension velocity (CRV), and then proposed to estimate the critical sedimentation velocity and critical resuspension velocity The formula.