Ultrasonic Rate Measurement of Multiphase Flow
Abstract/Contents
- Abstract
- One of the most important tools in production logging and well testing is the downhole flowmeter. Unfortunately, existing tools are inaccurate outside of an idealized single phase flow regime. Spinner tools are inaccurate at extremely high or low flow rates and when the flow rate is variable. Radioactive tracer tools have similar inaccuracies and are extremely sensitive to the flow regime. Both tools completely fail in the presence of multiphase flow, whether gas/oil, gas/water or fluid/solid. (Bennett et al., 1991, Hill and Oolman, 1982, Hill, 1990 and McKinley, 1982) Downhole flow metering is important for locating producing zones and thief zones and monitoring production and injection rates. The effects of stimulation can also be determined. (Leach et al., 1974) This goal of this project is the investigation of accurate downhole flow metering techniques for all single phase flow regimes and multiphase flows. The measurement method investigated in this report is the use of ultrasound. There are two ways to use ultrasound for fluid velocity measurement. The first method, examined in Chapter 2, is the contrapropagation, or transit-time, method which compares travel times with and against fluid flow. Chapter 3 details the second method which measures the Doppler frequency shift of a reflected sound wave in the moving fluid.
Description
| Type of resource | text |
|---|---|
| Date created | September 1992 |
Creators/Contributors
| Author | Dannert, David Alan |
|---|---|
| Primary advisor | Horne, Roland N. |
| 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
- Dannert, David Alan. (1992). Ultrasonic Rate Measurement of Multiphase Flow. Stanford Digital Repository. Available at: https://purl.stanford.edu/rb449hj4581
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...