Inflatable packer system

Details Inflatable packer system Inflatable packer system

1980-02-11

1982-08-24

Leppink, James A.

Wells

With eduction pump or plunger

With packer or plug

166187, E21B 33127

Patent

active

043456480

ABSTRACT:
An inflatable packer system for use in a well testing or treating tool which is attached to a drill string. The inflatable packer system comprises a pump subassembly operated by rotation of the drill string, a check/relief valve subassembly, valve subassembly, packer deflate subassembly, at least one inflatable packer, at least one flow subassembly, at least one recorder subassembly, and a drag spring unit. The packer system may also incorporate a straddle by-pass extension assembly for additional spacing between packers in a two packer straddle test. The inflatable packer system is used to isolate any desired zone or zones in a well bore so that multiple tests involving inflation and deflation of the packer(s) without removing the tool from the well may be performed.

REFERENCES:
patent: 3083774 (1963-04-01), Peters et al.
patent: 3427651 (1969-02-01), Bielstein et al.
patent: 3439740 (1969-04-01), Conouer
patent: 3818922 (1974-06-01), Malone
patent: 3908769 (1975-09-01), Schuyf et al.
patent: 3926254 (1975-12-01), Evans et al.
patent: 4082298 (1978-04-01), Sanford
patent: 4246964 (1981-01-01), Brandell
patent: 4246964 (1981-01-01), Brandell

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