Method and apparatus for injecting particulate media into the ground
Abstract
An improved method and apparatus for injecting particulate media into the ground for constructing underground permeable reactive barriers, which are used for environmental remediation of subsurface contaminated soil and water. A media injector sub-assembly attached to a triple wall drill string pipe sprays a mixture of active particulate media suspended in a carrier fluid radially outwards from the sub-assembly, at the same time that a mixing fluid is sprayed radially outwards. The media spray intersects the mixing spray at a relatively close distance from the point of injection, which entrains the particulate media into the mixing spray and ensures a uniform and deep dispersion of the active media in the surrounding soil. The media injector sub-assembly can optionally include channels for supplying compressed air to an attached down-the-hole hammer drive assembly for use during drilling.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175181
- Patent Number(s):
- 6834720
- Application Number:
- 10/309,502
- Assignee:
- Sandia Corporation
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E02 - HYDRAULIC ENGINEERING E02D - FOUNDATIONS
B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Dwyer, Brian P., Dwyer, Stephen F., Vigil, Francine S., and Stewart, Willis E. Method and apparatus for injecting particulate media into the ground. United States: N. p., 2004.
Web.
Dwyer, Brian P., Dwyer, Stephen F., Vigil, Francine S., & Stewart, Willis E. Method and apparatus for injecting particulate media into the ground. United States.
Dwyer, Brian P., Dwyer, Stephen F., Vigil, Francine S., and Stewart, Willis E. Tue .
"Method and apparatus for injecting particulate media into the ground". United States. https://www.osti.gov/servlets/purl/1175181.
@article{osti_1175181,
title = {Method and apparatus for injecting particulate media into the ground},
author = {Dwyer, Brian P. and Dwyer, Stephen F. and Vigil, Francine S. and Stewart, Willis E.},
abstractNote = {An improved method and apparatus for injecting particulate media into the ground for constructing underground permeable reactive barriers, which are used for environmental remediation of subsurface contaminated soil and water. A media injector sub-assembly attached to a triple wall drill string pipe sprays a mixture of active particulate media suspended in a carrier fluid radially outwards from the sub-assembly, at the same time that a mixing fluid is sprayed radially outwards. The media spray intersects the mixing spray at a relatively close distance from the point of injection, which entrains the particulate media into the mixing spray and ensures a uniform and deep dispersion of the active media in the surrounding soil. The media injector sub-assembly can optionally include channels for supplying compressed air to an attached down-the-hole hammer drive assembly for use during drilling.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {12}
}