特种油气藏2011，Vol.18Issue(6)：109-112,4.
深水天然气井水合物预测研究
摘要
Abstract
To inhibit the formation of hydrate during production tests in deepwater natural gas wells, the relationship of the hydrate formation with the wellbore pressure, temperature distribution and fluid level was studied in the paper. A model was established to predict temperature distribution in wellbore by segmentation of the wellbore and considering the effects of condensate water and condensate oil, another model was set up to predict pressure distribution in the wellbore of natural gas wells with fluid cut. The examples given in this paper indicate that the temperature of the wellbore near the sea floor and above it decreases more remarkably during production tests and startup/shut - in of wells having low production and low wellhead pressure, which can easily lead to the hydrate formation. The theoretical calculation was in good agreement with the measured values, indicating that the models and theoretical calculation results could provide guidance for production.关键词
深水/天然气/井筒温度/井筒压力/水合物预测Key words
deepwater/ natural gas/ wellbore temperature/ wellbore pressure/ hydrate prediction分类
能源科技引用本文复制引用
欧阳传湘,马成,唐海雄,吕露,王跃曾..深水天然气井水合物预测研究[J].特种油气藏,2011,18(6):109-112,4.基金项目
国家科技重大专项"深水油气田开发钻完井工程配套技术"(2008ZX05026-001) （2008ZX05026-001）
