Title: Process and apparatus for obtaining samples of liquid and gas from soil

Abstract

An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus.

Inventors:

Rossabi, Joseph ^[1]; May, Christopher P ^[2]; Pemberton, Bradley E ^[3]; Shinn, Jim ^[4]; Sprague, Keith ^[5]

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+ Show Inventor Affiliations

1. 105 Michael Ct., Aiken, SC 29801
2. 5002 Hesperus Dr., Columbia, MD 21044
3. 131 Glencarin Dr., Aiken, SC 29803
4. Box 65, RFD. #1, South Royalton, VT 05068
5. Box 234 Rte. 14, Brookfield, VT 05036

Issue Date:

Fri Jan 01 00:00:00 EST 1999

Research Org.:

Savannah River Site (SRS), Aiken, SC (United States)

OSTI Identifier:

872231

Patent Number(s):

5889217

Assignee:

Rossabi, Joseph (105 Michael Ct., Aiken, SC 29801);May, Christopher P. (5002 Hesperus Dr., Columbia, MD 21044);Pemberton, Bradley E. (131 Glencarin Dr., Aiken, SC 29803);Shinn, Jim (Box 65, RFD. #1, South Royalton, VT 05068);Sprague, Keith (Box 234 Rte. 14, Brookfield, VT 05036)

Patent Classifications (CPCs):

E - FIXED CONSTRUCTIONS E02 - HYDRAULIC ENGINEERING E02D - FOUNDATIONS

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

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E - FIXED CONSTRUCTIONS E02 - HYDRAULIC ENGINEERING E02D - FOUNDATIONS

E02D1/025 - {combined with sampling}
E02D1/027 - {by investigating properties relating to fluids in the soil, e.g. pore-water pressure, permeability

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B43/08 - Screens or liners {
E21B49/084 - {with means for conveying samples through pipe to surface}

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N1/10 - in the liquid or fluent state {

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DOE Contract Number:  

AC09-89SR18035

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

process; apparatus; obtaining; samples; liquid; gas; soil; subsurface; provided; filter; zone; adjacent; external; expander; creates; void; substrate; encourages; accumulation; soil-borne; fluids; migrate; pressure; gradient; plurality; filters; entering; chamber; one-way; valve; regulates; flow; fluid; communication; collection; tube; collected; surface; reverse; provides; additional; chambers; pressurized; cleaning; back-flushing; provides additional; reverse flow; subsurface soil; flow provides; pressure gradient; one-way valve; obtaining samples; /73/