| 摘要 |
The invention provides a method and apparatus for applying chemical treatment to wells and into pipeline systems employing a pressurized gas system. A further embodiment of the device provides for unattended treatment without the assistance of a human opera tor. A timer or remote activator is attached to the chemical supply and pressure system and when the timer or remote activator is triggered, a metered dose of chemical is shot d own the well or into the pipeline. Variants including the attachment of more than one chemica l source as well as the addition of a circulation loop to further improve treatment for w ells, are illustrated. The invention removes the need for manual initiation and handling o f such treatment cycles. The method and device represent a significant improvement in t erms of manufacturing and operating simplicity over conventional prior art pump applicat ion systems, as well as being safer and potentially less harmful to the environment through the removal of the human element presently required. The device could be used in oil , gas, water treatment or other applications requiring chemical injection.
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