Resin-coated ceramic proppants have a thin layer of resin coating on a ceramic body. In this study, we performed experiments to investigate the transport and settling behavior of resin-coated ceramic proppant in three rough vertical fracture models that are replications of different rocks. We studied the effects of the influential factors on the transport behavior of the proppant, including the location of the injection point; proppant, fracturing fluid, and fracture model types; injection rate; particle size; and fracture aperture. Resin-coated ceramic proppant occupied a large area of the fracture when the slurry was injected through the top injection point compared to when it was injected through the bottom injection point. Moreover, the resin-coated ceramic proppant covered a larger area of the fracture than silica sand owing to its higher density. The relative coverage of proppant carried by slickwater was also lower than that of proppant carried by tap water. The larger particle size and additional collisions between the particles and the rough surface of the fracture enabled 20–40 mesh resin-coated ceramic particles to cover more area, compared to 30–50 mesh resin-coated ceramic particles, in the fracture models. When slurry mixed with proppant was injected into fractures with smaller apertures, more collisions occurred between the proppant particles and the fracture surface, slowing the movement of the resin-coated ceramic particles and producing a higher chance of proppant settling and accumulating. Of the three fracture models, the highest relative coverage of resin-coated ceramic proppant was obtained in a replication of coarse-grained white marble, while the lowest relative coverage of resin-coated ceramic proppant was obtained in a replication of beige limestone with abundant coarse fossil shells.

树脂涂覆的陶瓷支撑剂在陶瓷体上有一薄层树脂涂层。在这项研究中，我们进行了实验，以研究在三种粗糙的垂直裂缝模型（不同岩石的复制）中树脂包覆的陶瓷支撑剂的运移和沉降行为。我们研究了影响因素对支撑剂传输行为的影响，包括注入点的位置。支撑剂，压裂液和裂缝模型类型；注射速度 粒度 和骨折口。与通过底部注入点注入浆料相比，树脂涂覆的陶瓷支撑剂在通过顶部注入点注入浆料时占据了较大的裂缝面积。此外，由于其密度较高，树脂涂覆的陶瓷支撑剂比硅砂覆盖的裂缝面积更大。滑水携带的支撑剂的相对覆盖率也低于自来水携带的支撑剂的相对覆盖率。在裂缝模型中，与30–50目树脂涂层的陶瓷颗粒相比，较大的粒径以及颗粒与裂缝的粗糙表面之间的额外碰撞使20–40目树脂涂层的陶瓷颗粒能够覆盖更多区域。当将与支撑剂混合的浆液注入孔径较小的裂缝中时，支撑剂颗粒与裂缝表面之间会发生更多的碰撞，从而减慢了树脂包覆的陶瓷颗粒的运动，并增加了支撑剂沉降和堆积的机会。在这三种断裂模型中，