Wells – Processes – Producing the well
Patent
1990-05-21
1991-07-02
Neuder, William P.
Wells
Processes
Producing the well
166105, 417394, 13762566, E21B 4312, E21B 3410
Patent
active
050279025
ABSTRACT:
A self-cycling pump apparatus wherein a valve functioning as a pump cycling device is connected to the pump so that it may be lowered together with the pump to a submerged position in a sub-surface fluid for lifing the sub-surface fluid to ground level. Separate drive air supply and exhaust tubes are connected to the cycling valve, the valve permitting the drive air supply line to communicate with a gas chamber of the pump during a pressurizing phase of the pump cycle, and alternately permitting the exhaust tube to communicate with the gas chamber of the pump during a venting phase of the pump cycle. A timing device for timing the sequence of the cycle phases is connected with the cycling valve. The timing device may be mounted adjacent the cycling valve, so that the pump, the cycling valve and the timing device may be lowered to the submerged operating position as a single unit.
REFERENCES:
patent: 4489779 (1984-12-01), Dickinson et al.
patent: 4585060 (1986-04-01), Bernardin et al.
patent: 4923168 (1990-05-01), Murata et al.
Millelburg, Air-Operated Pump for Sampling Small Diameter Wells, WRD Bulletin, Apr.-Jun. 1976, pp. 22-23.
Procedures and Equipment for Groundwater Monitoring, Sep. 1981, Industrial & Environmental Analysts, Inc., pp. 1-11.
Performance Characteristics of I.E.A. Ground Water Sampling Pumps, 1982 Industrial & Environmental Analysts, Inc., pp. 1-10.
Dickinson William D.
Mirand James
American Sigma, Inc.
Burt Pamela S.
Carrier Joseph P.
Neuder William P.
Weiner Irving M.
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