skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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}
}

Patent:

Save / Share: