Calculation of Wellbore Pressure Drop and Heat Loss in Steam Injection and Production with Noncondensable Gases
Abstract/Contents
- Abstract
- A computer model more comprehensive than other available models has been developed. This model utilizes pressure and enthalpy as primary variables. Since these variables are independent throuoghout the phase diagram, this model can be applied in single phase vapor or liquid as well as two-phase regions.The mathematical model is developed by formulating the total energy equation and Mechanical Energy equation (Extended Bernoulli eqn.) in terms of pressure and enthalpy, then solving these two non-linear equations iteratively by the secant technique at each length increment of the tubing i n a step-wise manner from one end to the other. Steam properties are determined by the curve-fit equations developed by W. C. Reynolds (1979). These equations reproduce the steam tables to an excellent degree of accuracy over the entire range of t h e P-V-T diagram.The current model also has the option t o calculate the wellhead conditions from the bottomhole conditions in geothermal wells. Beggs and Brill two-phase correlation is employed to calculate the pressure drop in both down and upflow. The model also accounts for the presence of C02. It assumes Henry's law is valid and neglects the quantity of C02 dissolved chemically.The heat loss at each depth increment is calculated by a radial heat flow model with the options to include natural or forced convection i n the annulus and a dry earth zone.
Description
| Type of resource | text |
|---|---|
| Date created | December 1984 |
Creators/Contributors
| Author | Karaoguz, Osrnan Kemal |
|---|---|
| Primary advisor | Aziz, Khalid |
| Degree granting institution | Stanford University, Department of Petroleum Engineering |
Subjects
| Subject | School of Earth Energy & Environmental Sciences |
|---|---|
| Genre | Thesis |
Bibliographic information
Access conditions
- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
Preferred citation
- Preferred Citation
- Karaoguz, Osrnan Kemal. (1984). Calculation of Wellbore Pressure Drop and Heat Loss in Steam Injection and Production with Noncondensable Gases. Stanford Digital Repository. Available at: https://purl.stanford.edu/wd254pq1461
Collection
Master's Theses, Doerr School of Sustainability
View other items in this collection in SearchWorksContact information
- Contact
- brannerlibrary@stanford.edu
Also listed in
Loading usage metrics...