Downhole surge tools

Details Downhole surge tools Downhole surge tools

1978-09-29

1980-01-08

Leppink, James A.

Wells

Valves, closures or changeable restrictors

Operated by dropped element

E21B 2100

Patent

active

041824199

ABSTRACT:
Downhole surge tools for efficient well completions wherein natural earth energy is utilized by the exploitation of a maximum pressure differential into a given well bore. The tools of the apparatus function to back surge the well, enhancing reservoir communication, saving time and reducing costs. Tools of the apparatus include a tubular nipple, a surge plug inserted operationally into the nipple, and an optional catcher sub connected thereto. The entire tool assembly is production actuated by dropping a recoverable bar of sufficient weight to overcome that buoyant force which seals the plug within the nipple. The essence of invention resides in the economy of time and material.

REFERENCES:
patent: 1835444 (1931-12-01), Taylor
patent: 2756828 (1956-07-01), Deily
patent: 3095040 (1963-06-01), Branlett
patent: 3353609 (1967-11-01), Jensen
patent: 3831680 (1974-08-01), Edwards et al.

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