Pneumatic well tool for stimulation of petroleum formations

Details Pneumatic well tool for stimulation of petroleum formations Pneumatic well tool for stimulation of petroleum formations

1991-08-30

1993-04-27

Britts, Ramon S.

Wells

Processes

Placing fluid into the formation

166 63, E21B 4326

Patent

active

052053601

ABSTRACT:
A pneumatic well tool for fracturing or enlarging perforations in a subsurface formation so that the petroleum in the formation more freely flows. The tool takes the form of an elongate tool body or sonde which is lowered by a wireline into the well bore to a desired depth adjacent the formation of interest. A fluid chamber in the sonde in fluid communication with the fluid in the well bore is filled with a quantity of well bore fluid. Periodically, a pneumatic pressure source in the sonde exerts pressure on the fluid chamber to force fluid from the chamber into the well bore, thus creating a sudden pressure surge which increases the ability of fluid to flow from the perforated formation.

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