Mechanical plug device

Details Mechanical plug device Mechanical plug device

1993-02-01

1994-09-20

Schoeppel, Roger J.

Wells

Above ground apparatus

Cap or head pivotably attached to tube or casing

166 93, 166 97, E21B 3402

Patent

active

053480856

ABSTRACT:
A well monitor plug device for sealing a subwell casing. The plug device has an adjustable and tamper resistant sealing structure which includes a turning member and a cooperating locking member which permits access to a sampling aperture.

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patent: 4971149 (1990-11-01), Roberts
patent: 5184608 (1993-02-01), Hale
patent: 5195590 (1993-03-01), Kenner
Morrison Bros. Co., Dubuque, Iowa, Monitoring Well Specification Guide, Apr., 1989, pp. 1-3 and 6.

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