赵润冬;

• 1:中石化华北油气分公司石油工程技术研究院采气工艺研究所

摘要(Abstract)：

针对井下节流天然气井需要通过判断井筒积液严重程度来优化采气工艺的情况，提出了一种计算井下节流气井无积液条件下的理论产气量，并与实际产气量进行对比来判断井筒积液程度的方法。假设气井无积液条件下，根据油套环空静气柱模型、油管Beggs&Brill管流模型，由油压、套压计算节流器进、出口压力；通过设定气井产气量，结合节流器进、出口压力和节流器嘴径计算得到理论产气量。将254组实际产气量与理论产气量的比值与套压降速率、产气量月递减率、泡排工艺实施比例及实施效果等数据进行对比。结果表明：当实际产气量与理论产气量的比值小于0.75时，井筒存在严重积液，诊断符合率为91.6%。

关键词(KeyWords)： 井下节流天然气井;积液诊断;理论产气量;东胜气田

Abstract:

Keywords:

基金项目(Foundation): “十三五”国家科技重大专项“低丰度致密低渗油气藏开发关键技术”(2016ZX05048);; 中国石化华北油气分公司“四大科技工程-储量有效动用工程”(2020-CLYXDY-02-01)

作者(Authors): 赵润冬;

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