Calculation of Unsteady State Heat Loss for Steam Injection Wells Using a TI-59 Programmable Calculator

1980 ◽  
Author(s):  
David D. Smith ◽  
Richard M. Weinbrandt
Keyword(s):  
Heat Loss ◽  
Steam Injection ◽  
Unsteady State ◽  
Injection Wells ◽  
Programmable Calculator ◽  
State Heat

Development of a Thermal Wellbore Simulator With Focus on Improving Heat-Loss Calculations for Steam-Assisted-Gravity-Drainage Steam Injection

2016 ◽  
Vol 19 (02) ◽  
pp. 305-315 ◽  
Author(s):  
Wanqiang Xiong ◽  
Mehdi Bahonar ◽  
Zhangxin Chen
Keyword(s):  
Heat Loss ◽  
Steam Injection ◽  
Loss Estimation ◽  
Gravity Drainage ◽  
Thermal Processes ◽  
Injection Wells ◽  
Steam Assisted Gravity Drainage ◽  
Cfd Models ◽  
Fully Implicit ◽  
Loss Modeling

Summary Typical thermal processes involve sophisticated wellbore configurations, complex fluid flow, and heat transfer in tubing, annulus, wellbore completion, and surrounding formation. Despite notable advancements made in wellbore modeling, accurate heat-loss modeling is still a challenge by use of the existing wellbore simulators. This challenge becomes even greater when complex but common wellbore configurations, such as multiparallel or multiconcentric tubings, are used in thermal processes such as steam-assisted gravity drainage (SAGD). To improve heat-loss estimation, a standalone fully implicit thermal wellbore simulator is developed that can handle several different wellbore configurations and completions. This simulator uses a fully implicit method to model heat loss from tubing walls to the surrounding formation. Instead of implementing the common Ramey (1962) method for heat-loss calculations, which has been shown to be a source of large errors, a series of computational-fluid-dynamics (CFD) models are run for the buoyancy-driven flow for different annulus sizes and lengths and numbers of tubings. On the basis of these CFD models, correlations are derived that can conveniently be used for the more-accurate heat-loss estimation from the wellbore to the surrounding formation for SAGD injection wells with single or multiple tubing strings. These correlations are embedded in the developed wellbore simulator, and results are compared with other heat-loss-modeling methods to demonstrate its improvements. A series of validations against commercial simulators and field data are presented in this paper.

scholarly journals Unsteady State Heat Loss in Thermal Insulation Pipe

1992 ◽  
Vol 112 (5) ◽  
pp. 431-438
Author(s):  
Takuya Doi ◽  
Tadayoshi Tanaka
Keyword(s):  
Heat Loss ◽  
Thermal Insulation ◽  
Unsteady State ◽  
State Heat

HEAT TRANSFER PECULIARITIES IN HETEROGENEOUS SYSTEMS WITH HIGH UNSTEADY-STATE HEAT TRANSFER RATES

1970 ◽  
Author(s):  
N.V. Antonishin ◽  
S. S. Zabrodsky ◽  
L.E. Simchenko ◽  
V.V. Lushchikov
Keyword(s):  
Heat Transfer ◽  
Heterogeneous Systems ◽  
Unsteady State ◽  
Transfer Rates ◽  
State Heat

Unsteady state heat transfer in stationary packed beds

1961 ◽  
Vol 16 (1-2) ◽  
pp. 133-134 ◽  
Author(s):  
A. Klinkenberg ◽  
A. Harmens
Keyword(s):  
Heat Transfer ◽  
Packed Beds ◽  
Unsteady State ◽  
State Heat
Sign in / Sign up

Export Citation Format

Share Document