Study on pressure‐controlled sliding sleeve of jet breaking for natural gas hydrate mining based on throttle pressure drop principle

• Published in: Energy science & engineering Vol. 8; no. 5; pp. 1422 - 1437
• Main Authors: Tang, Yang, Yao, Jiaxin, He, Yin, Sun, Peng, Jin, Xin
• Format: Journal Article
• Language: English
• Published: London John Wiley & Sons, Inc 01.05.2020; Wiley
• Subjects: Axial forces; Cavitation; Computational fluid dynamics; Computer simulation; Drilling; Drilling fluids; Finite volume method; Flow rates; Flow velocity; Fluid dynamics; Fluidization; Fluidizing; Gas hydrates; Hydrodynamics; jet breaking; Jet nozzles; Natural gas; natural gas hydrate; Nozzles; Operating costs; Parameters; Pressure drop; pressure‐controlled sliding sleeve; Reynolds number; Simulation; Simulation analysis; Sliding; solid‐state fluidization mining; Stability; throttle pressure drop; Throttles; Throttling; Vortices; Water depth; Working conditions

In order to reduce operating cost of deep‐sea natural gas hydrate (NGH) solid‐state fluidization mining (SSFM), a device for controlling opening and closing of jet nozzles is required. It is required to meet the specifications of work process and is not affected by changes in water depth and well de...