气举环空注热天然气井筒温度预测新模型  

New Prediction Model for Temperature Distribution in Gas Lift Annulus Hot Gas Injection Wellbore

作　　者：罗威[1] 袁骞[1] 胡海霞[2] 李莹 杨汝成 

机构地区：[1]长江大学石油工程学院,湖北荆州434023 [2]长江大学工程技术学院,湖北荆州434023 [3]中国石油吐哈油田公司信息产业处,新疆哈密839009 [4]中国石油吐哈油田公司工程技术研究院,新疆哈密839009

出　　处：《天然气与石油》2014年第3期41-43,10,共3页Natural Gas and Oil

摘　　要：气举环空注热天然气井筒传热过程复杂,在前人研究的基础上,全面考虑气举环空注热天然气井筒实际传热过程,建立新的井筒传热模型,修正了前人温度预测模型。通过现场试验实测数据拟合得到井筒传热新模型中环空传热等效半径,确定新温度预测模型必要参数,然后通过多个现场试验实例对新温度预测模型进行验证,从预测的准确性和热天然气影响深度两方面证明新温度预测模型较可靠。Heat transfer process of gas lift annulus hot injection wellbore is very complex. Established is a new wellbore heat transfer model based on previous research results and comprehensively considering gas lift annulus hot injection wellbore heat transfer process, and obtained is a new temperature prediction model through correction of previous temperature prediction model. Applied is field test data fitting to obtain equivalent radius of annulus heat transfer in the new wellbore heat transfer model and determine necessary parameters in new temperature prediction model. Conducted is verification on the new model in several field cases and it is proved from such issues as the accuracy of the prediction and hot gas influence depth that the new model is reliable.

关 键 词：气举环空 热天然气 传热过程 井筒传热模型 温度预测模型 现场试验 环空传热等效半径 

分 类 号：TE355.3[石油与天然气工程—油气田开发工程]