Flow Behavior and Heat Transmission for Steam Injection Wells Considering the Tubing Buckling Effect

被引：17
|
作者：
Wei, Shaolei [1 ,2 ]
Cheng, Linsong [1 ]
Huang, Wenjun [1 ]
Yang, Yang [1 ]
机构：
[1] China Univ Petr, Dept Petr Engn, Beijing 102249, Peoples R China
[2] Sinopec Oil Explorat & Dev Res Inst, Beijing 102249, Peoples R China
来源：
ENERGY TECHNOLOGY | 2015年 / 3卷 / 09期
关键词：
heat transmission; steam injection; telescopic tubing strings; tubing buckling; two-phase flow; THERMAL RECOVERY; OIL-RESERVOIRS; WELLBORE; PROJECT; LOSSES; FLUIDS; MODEL;
D O I：
10.1002/ente.201500074
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
During the thermal recovery process, the tubing string buckles inside the wellbore and leans directly on the casing, which has a significant influence on the heat transmission between the wellbore and its surroundings. In this paper, a unified mathematical model is built to predict the flow behavior and heat transmission along the flow path by considering the tubing buckling effect. A classic tubing buckling model is introduced to determine the tubing-casing contact status. For the noncontact section, the heat transmission calculation follows the conventional "thermal resistance" method, whereas a new approach is proposed for the tubing-casing contact section. The tubing buckling model and the non-isothermal flow model are solved sequentially in an iterative process. The interaction between tubing buckling and non-isothermal flow is analyzed in detail. The results indicate that insulation tubing and telescopic tubing are welcomed in thermal recovery.
引用
收藏
页码：935 / 945
页数：11
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