化工进展 ›› 2016, Vol. 35 ›› Issue (10): 3118-3128.DOI: 10.16085/j.issn.1000-6613.2016.10.015

• 能源加工与技术 • 上一篇    下一篇

天然气水合物的生成对浆液流动稳定性影响综述

丁麟1, 史博会1, 吕晓方2, 柳杨1, 阮超宇1, 宋尚飞1, 宫敬1   

  1. 1 中国石油大学(北京)油气管道输送安全国家工程实验室/石油工程教育部重点实验室/城市油气输配技术北京市重点实验室, 北京 102249;
    2 常州大学石油工程学院油气储运重点实验室, 江苏 常州 213016
  • 收稿日期:2016-03-08 修回日期:2016-07-03 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: 宫敬,教授,博士生导师,主要从事瞬变流理论及其应用、油气管道仿真技术、油气多相管流及流动保障技术及油气田集输工艺技术的研究。E-mail:ydgj@cup.edu.cn
  • 作者简介:丁麟(1989-),男,博士研究生,研究方向为深海流动安全保障和天然气水合物浆液多相流动。E-mail:dinglin_2009@163.com。
  • 基金资助:
    国家自然科学基金(51274218&51306208&5153000152)、国家科技重大专项课题(2011ZX05026-004)、中国石油大学(北京)科学基金(2462013YXBS010)及中国石油大学(北京)科研基金(2462014YJRC006)项目。

Investigation on the effects of natural gas hydrate formation on slurry flow stability

DING Lin1, SHI Bohui1, LÜ Xiaofang2, LIU Yang1, RUAN Chaoyu1, SONG Shangfei1, GONG Jing1   

  1. 1 National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102249, China;
    2 Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, School of Petroleum Engineering, Changzhou University, Changzhou 213016, Jiangsu, China
  • Received:2016-03-08 Revised:2016-07-03 Online:2016-10-05 Published:2016-10-05

摘要: 目前在海底混输管道的水合物风险控制策略中,允许水合物在管道内的生成,以液固浆液流动的形式对海底油气产物进行输送。其中主要通过控制浆液中水合物的生成量和聚集程度,来实现对海底集输管线的流动安全保障。液固浆液流动具有相当复杂的流动特性,固相颗粒的引入对于流体的流动特性影响很大。本文分别综述了拟单相流动体系和气液多相流动体系中水合物颗粒对于管输体系流动稳定性的影响以及水合物对混输管道堵管特性的影响。着重讨论了水合物在管道壁面的生长和沉积特性、水合物与气液流型的耦合关系以及不同体系中水合物的堵管机理。此外,对软件模拟在水合物生成及浆液流动特性研究中的应用做了简单介绍。最后,根据对相关研究结果的总结,指出水合物在壁面生长沉积的微观特性和定量表述、颗粒不同分散形式的临界流速、不同气液流型条件下的水合物生成特性和颗粒行为等是今后水合物相关研究中需要进一步深入探究和明确的问题。

关键词: 水合物, 浆料, 流动, 稳定性

Abstract: In the hydrate risk management strategy in deep-sea oil/gas transportation pipeline,hydrates are allowed to form in the pipe line,and the petroleum products are transported in the liquid-solid slurry form. Therefore,to ensure the flow safety in deep-sea pipeline,the hydrate volume fraction and degree of agglomeration must be controlled in a safe value. The liquid-solid slurry has complex flow properties due to the introduction of the hydrate solid phase. The present work reviewed the effects of hydrate particles on the flow stability and plug mechanism in both pseudo single phase system and the gas-liquid multiphase system. The hydrate growth and deposition on pipe wall,the inter-couple of natural gas hydrate and gas-liquid multiphase flow pattern and the different plug mechanisms in different systems were discussed emphatically. Besides,an introduction of the software simulation of the hydrates slurry flow was made. Finally,based on the reviewing,this paper proposed that study on the microscopic property and quantitative description of the hydrate growth and deposition,the critical velocities of different patterns of particles distribution,and the hydrate formation and slurry flow property in different flow patterns were the main issues to be researched in the future.

Key words: hydrate, slurry, flow, stability

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn