Wells – Processes – Cleaning or unloading well
Patent
1997-09-09
1999-07-20
Graysay, Tamara
Wells
Processes
Cleaning or unloading well
166222, 166304, 166310, 166311, E21B 2100, E21B 4300
Patent
active
059244909
ABSTRACT:
A well treatment tool is installed along the sucker rod string of a well, within the surrounding production tube string. The tool provides for the distribution of a treatment fluid (solvent, etc.) within the fluid being pumped or flowing from the well. The tool receives treatment fluid through the hollow sucker rod string, and distributes the fluid through a valve which is set at a predetermined pressure. When the treatment fluid pumped down the sucker rod string from the surface exceeds the predetermined opening pressure of the valve, the treatment fluid is distributed into the production tube string through one or more passages in the tool. The present tool may be used simultaneously with well production, with fluid (oil, etc.) rising up the production tube string, carrying the treatment fluid therewith. The treatment fluid is thus distributed throughout the local fluid processing system, including pipelines from the well, any initial treatment operations, and any storage tanks. The present tool is particularly well adapted for the treatment of paraffin buildups within the production tube string of an oil well, but may be used to provide various treatments to other types of wells. The present tool may be used with both pumping wells and flowing (e. g., artesian) wells.
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Atkinson Alan J.
Graysay Tamara
Singh Sunil
LandOfFree
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