Опубликована: Июль 12, 2024

The erosion of surface pipelines induced by proppant flowback during shale gas production is significant. in a field the Sichuan Basin experienced perforation failures after only five months service. To investigate features L360N, coatings, and ceramics optimize selection two protective materials, gas-solid two-phase flow jet experimental device was used to explore resistance coating, ceramic under different impact velocities (15 m/s, 20 30 m/s). An energy dispersive spectroscope, scanning electron microscope, laser confocal microscope were employed analyze morphologies. With increase velocity, depth rate increased peaked an velocity m/s. Maximum maximum L360N respectively 0.0350 mg/g 37.5365 µm. Its primary material removal mechanism plowing solid particles microcracks distributed on high velocities. coating 0.0217 18.9964 detachment binder phase Co caused plowing. 0.0108 12.4856 mechanisms micro-cutting Under particle morphologies observed, but same. higher than that coating. Therefore, lining materials could be protect easily eroded parts, such as pipeline bends tees, reduce failure more 93%. study provided data theoretical basis for oil selection.

Язык: Английский