Clean fracturing fluid and proppant transport Hydraulic Fracturing Proppants laid an important impact on the fracturing effect, currently based in this area are more theoretical research and field test, and experimental research on indoor less. A transparent parallel plate fracture filling simulation device for four factors proppant settling laws were studied. The results showed that: the greater the viscosity, the sedimentation rate is smaller; fracturing fluid sand-carrying performance with increasing displacement, reduce proppant density linear growth law; the sand was less affected than the sedimentation rate; which three main factors the impact of fracturing fluid carrying capacity of descending order of clean fracturing fluid viscosity, density and proppant sand-liquid ratio. Recognize proppant settling rules can be further improved rationality fractured wells construction parameters.
Proppant in the fracture sanding concentration, fracturing proppants distribution, etc. are laid way affect the important fracture conductivity. The factors that determine the distribution of proppant in the fracture displacement law including collision construction, operation pressure, sand-liquid ratio, fracture surface, proppant particles between proppant and fracturing fluid properties and so on.
It has been reported in the fracture proppant settling in the law, but has not yet formed a systematic research. Therefore, strengthening the settlement of the proppant in the fracture, and has important practical implications for oil fracturing wells.
Domestic researchers discussed migration and law laid proppant in theory, field test mainly rely on simulation software, there are few aspects of research experiments. Transparent parallel plate device research proppant law laid artificial fracture to guide mine construction.