西南石油大学学报（自然科学版）2017，Vol.39Issue(2)：172-178,7.DOI:10.11885/j.issn.1674-5086.2015.05.19.04
生产参数对沥青质井筒析出影响规律研究
Influence of Production Parameters on Asphaltene Precipitation Regularity in Wellbore
摘要
Abstract
This study investigated the influence of production parameters on asphaltene precipitation regularity under the conditions of high temperature and high pressure and evaluated the influence of temperature,GOR (gas-oil ratio),and flow velocity on asphaltene precipitation in wellbores.The results showed that the pressure of asphaltene precipitation (ponset) was inverse to temperature and the pressure of asphaltene redissolving (pred) was proportionate to temperature.ponset was proportionate to the GOR at a certain temperature because the dissolved gases in the oil increased when the GOR improved and may have caused asphaltene precipitation.ponset and pred were not influenced by flow velocity in certain GOR and temperature ranges.This study demonstrated how asphaltene precipitation regularity can be controlled to decrease the risk of asphaltene precipitation in wellbores.关键词
沥青质/析出规律/温度/油气比/流速Key words
asphaltene/precipitation regularity/temperature/GOR/flow velocity分类
能源科技引用本文复制引用
吴川,张汝生,张祖国,佘跃惠,吴正彬..生产参数对沥青质井筒析出影响规律研究[J].西南石油大学学报（自然科学版）,2017,39(2):172-178,7.基金项目
国家科技重大专项(2011ZX05031-003-004) （2011ZX05031-003-004）
中国石化科技部攻关项目(P15128) （P15128）
中国石化重大科技项目(ZDP17005) （ZDP17005）
