Isolating packer units in geological and geophysical measuring c

Details Isolating packer units in geological and geophysical measuring c Isolating packer units in geological and geophysical measuring c

1978-11-13

1980-10-28

Purser, Ernest R.

Wells

Packers or plugs

With central conduit and fluid port to space outside

166100, 166191, 166264, E21B 4700, E21B 33124

Patent

active

042301807

ABSTRACT:
The isolating packer unit is made up of a cylindrical measuring casing one end of which is connected by a cylindrical coupler tube to an end of a similar measuring casing, this coupler tube having a measuring port normally closed by a valve which is operable from within the tube to open the port. An elongate elastic packer tube is mounted on and concentric with each casing and is secured at its ends to the casing. When the packer unit is in a well or bore hole, the packer tubes are expanded or inflated by fluid directed thereinto to engage the wall of the well or bore hole to isolate the measuring port of the coupler tube from the portions of the well or bore hole above and below the packer unit.

REFERENCES:
patent: 2618340 (1952-11-01), Lynd
patent: 2818120 (1957-12-01), Whitton
patent: 2831541 (1958-04-01), Conover
patent: 2951538 (1960-09-01), Martin
patent: 2978046 (1961-04-01), True
patent: 3500911 (1970-03-01), Farley et al.

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