... scanner. Differential pressure did not change during water injection when the injection rate was low. On the contrary, differential pressure changed significantly when the injection rate was high. It appeared that soil particles might have been transported along the flow direction. In addition, CT images...

... height on hydraulic fracturing behavior, all specimens have a fixed external diameter of 50 mm, while borehole diameter varied at 5, 8, 12 and 14 mm, and specimen height varied at 50, 70 and 100 mm. Most tests were conducted at a constant injection rate of 50 or 100 mm 3 /s. A few SF tests were compared...

... methods of determining P s have been proposed so far. hydraulic fracturing fracture direction reservoir geomechanics strength variation water management slow injection compliance breakdown pressure asian rock mechanics symposium 29 Injection Rate isrm international symposium Rock...

... sawcut fracture Injection Rate shear behavior effective normal stress permeability hydraulic fracturing gouge-filled fracture normal stress slip rate shear strength Overpressure-induced Frictional Slip of Rock Fractures Yinlin Jia and Wei Wua* a Nanyang Technological University, Singapore...

... to ensure the quality of injection water for water curtain boreholes. Additionally, the injection boreholes were designed with duplex pipes to enable circulation in each borehole for cleaning in both construction and operation phase. The water injection rate of the water curtain system is continuously...

... Abstract In order to understand the mechanics of hydraulic fracturing considering the fluid viscosity and the fluid injection rate, a series of experiments for hydraulic fracturing were performed in laboratory condition. Four kinds of fluid (1, 100, 500, 1000 cSt) were injected at various flow...

..., temperature = 44°C). Automatic history matching was performed with an inversion simulator iTOUGH2/ECO2N for multi-phase flow system of supercritical CO 2 , NaCl, and water. Our experiment also focuses on the impact of injection rate on the estimates of relative permeability, as it is known that the injection...

... it effectively, a new approach different from the past theoretical model for the consolidated rock is required. Regarding this situation, Ito et al. performed a series of laboratory hydraulic fracturing experiment under true triaxial compression in unconsolidated sand specimen with different injection rate (Ito...