Clean fracturing fluid and proppant transport laid an hydraulic fracturing proppant important impact on the fracturing effect, currently based in this area are more theoretical research and field trials, the experimental study of indoor less. A transparent parallel plate fracture filling simulation device for four factors proppant settlement laws were studied. The results showed that: the greater the viscosity, the sedimentation rate is smaller; fracturing fluid carrying sand performance with increasing displacement, reduce proppant density linear growth law; the sand was less affected than the settling velocity; wherein the three main factors the impact of fracturing fluid carrying capacity of descending order of clean fracturing fluid viscosity, density and proppant sand-liquid ratio. Proppant settlement laws recognize further improve the rationality fractured wells construction parameters.
Proppant in the fracture of sanding concentration, 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, construction pressure, sand-liquid ratio, fracture surface, proppant particles between proppant and fracturing fluid physical properties and the like.
It has been reported in the fracture proppant Hydraulic Fracturing Proppants settling in the law, but has not yet formed a systematic research. Therefore, the strengthening of 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 apparatus proppant study law laid artificial fracture to guide mine construction.