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Title: Pressure charged airlift pump

Abstract

A pumping system is described for pumping fluids, such as water with entrained mud and small rocks, out of underground cavities such as drilled wells, which can effectively remove fluids down to a level very close to the bottom of the cavity and which can operate solely by compressed air pumped down through the cavity. The system utilizes a subassembly having a pair of parallel conduit sections (44, 46) adapted to be connected onto the bottom of a drill string utilized for drilling the cavity, the drill string also having a pair of coaxially extending conduits. The subassembly includes an upper portion which has means for connection onto the drill string and terminates the first conduit of the drill string in a plenum (55). A compressed air-driven pump (62) is suspended from the upper portion. The pump sucks fluids from the bottom of the cavity and discharges them into the second conduit. Compressed air pumped down through the first conduit (46) to the plenum powers the compressed air-driven pump and aerates the fluid in the second conduit to lift it to the earth's surface.

Inventors:
 [1]
  1. (Las Vegas, NV)
Issue Date:
Research Org.:
REYNOLDS ELEC & ENG CO INC
OSTI Identifier:
864494
Patent Number(s):
4373867
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
AC08-76NV00410
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
pressure; charged; airlift; pump; pumping; described; fluids; water; entrained; mud; rocks; underground; cavities; drilled; effectively; remove; level; close; bottom; cavity; operate; solely; compressed; air; pumped; utilizes; subassembly; pair; parallel; conduit; sections; 44; 46; adapted; connected; drill; string; utilized; drilling; coaxially; extending; conduits; upper; portion; means; connection; terminates; plenum; 55; air-driven; 62; suspended; sucks; discharges; powers; aerates; fluid; lift; earth; surface; air pump; compressed air; upper portion; drill string; axially extending; remove fluids; driven pump; conduit sections; effectively remove; conduit section; /417/

Citation Formats

Campbell, Gene K. Pressure charged airlift pump. United States: N. p., 1983. Web.
Campbell, Gene K. Pressure charged airlift pump. United States.
Campbell, Gene K. Sat . "Pressure charged airlift pump". United States. https://www.osti.gov/servlets/purl/864494.
@article{osti_864494,
title = {Pressure charged airlift pump},
author = {Campbell, Gene K.},
abstractNote = {A pumping system is described for pumping fluids, such as water with entrained mud and small rocks, out of underground cavities such as drilled wells, which can effectively remove fluids down to a level very close to the bottom of the cavity and which can operate solely by compressed air pumped down through the cavity. The system utilizes a subassembly having a pair of parallel conduit sections (44, 46) adapted to be connected onto the bottom of a drill string utilized for drilling the cavity, the drill string also having a pair of coaxially extending conduits. The subassembly includes an upper portion which has means for connection onto the drill string and terminates the first conduit of the drill string in a plenum (55). A compressed air-driven pump (62) is suspended from the upper portion. The pump sucks fluids from the bottom of the cavity and discharges them into the second conduit. Compressed air pumped down through the first conduit (46) to the plenum powers the compressed air-driven pump and aerates the fluid in the second conduit to lift it to the earth's surface.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

Patent:

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