Analytical model for radial injection of NORM with a step-function source

PDF Version Also Available for Download.

Description

This paper presents information on a model used to analyze the underground injection of wastes containing naturally occurring radioactive material (NORM). This model uses a step-function contaminant source, which models intermittent NORM injection in a continuous brine injection well. The governing equations are presented and transformed into Laplace space, where the equations are solved. The numerical inversion of this solution is detailed. The model is cast in a nondimensional form such that a single model solution is valid for a large number of different field conditions. This paper also presents a case study that compares this analytical model to a ... continued below

Physical Description

13 p.

Creation Information

Williams, G.P.; Tomasko, D.; Smith, K. & Blunt, D. December 31, 1997.

Context

This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Description

This paper presents information on a model used to analyze the underground injection of wastes containing naturally occurring radioactive material (NORM). This model uses a step-function contaminant source, which models intermittent NORM injection in a continuous brine injection well. The governing equations are presented and transformed into Laplace space, where the equations are solved. The numerical inversion of this solution is detailed. The model is cast in a nondimensional form such that a single model solution is valid for a large number of different field conditions. This paper also presents a case study that compares this analytical model to a simple mixing model for a field demonstration site in west Texas. This case study showed that at distances of more than 100 meters from the injection well, calculated subsurface NORM activities were lower than proposed US Environmental Protection Agency drinking water standards. The comparison also shows that the simple mixing model overpredicts activity levels close to the injection well and underpredicts activities further from the well.

Physical Description

13 p.

Notes

OSTI as DE97054327

Source

  • 4. international petroleum environmental conference, San Antonio, TX (United States), 9-12 Sep 1997

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

  • Other: DE97054327
  • Report No.: ANL/EA/CP--94440
  • Report No.: CONF-970990--
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 663340
  • Archival Resource Key: ark:/67531/metadc703782

Collections

This article is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Creation Date

  • December 31, 1997

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • Nov. 10, 2015, 8:26 p.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 2
Total Uses: 9

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Williams, G.P.; Tomasko, D.; Smith, K. & Blunt, D. Analytical model for radial injection of NORM with a step-function source, article, December 31, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc703782/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.