摘要
Turner模型是目前为止应用较广泛的模型之一,在Turner模型应用于海上定向井的实例中,发现Turner模型对于定向井和雷诺数高于2.2×105的气井存在较大的误差。通过分析Turner模型中携液临界流量的主要影响因素,确定井筒最先发生积液的位置;然后考虑井斜角对Turner模型进行了修正;对于雷诺数高于2.2×105的气井,提出了通过对比临界持液率和实际持液率的关系确定携液临界流量的方法。此方法可以使计算误差最大降低40%。
Turner model is widely used up to now.In its application to some offshore directional wells,big error may occur in directional wells and gas wells with Reynolds number more than 2.2 × 10 5.The main influencing factors of critical liquid carrying flow rate are analyzed to locate the earliest liquid loading.And then,the model is amended considering deviation angle.For gas wells with Reynolds number more than 2.2 × 10 5,this paper puts forward a method of comparing critical liquid holdup with the real one to determine critical liquid carrying flow rate.This method can reduce the error up to 40%.
出处
《天然气勘探与开发》
2012年第1期57-60,83,共4页
Natural Gas Exploration and Development
基金
国家重大专项"南海深水油气勘探开发示范工程"(2008ZX05056-002)的研究成果
关键词
气井
携液临界流量
井斜角
雷诺数
持液率
gas well,critical liquid carrying flow rate,deviation angle,Reynolds number,liquid holdup
