| 摘要 |
<p num="1">An apparatus and method for delivery of treatment chemicals to the bottom of the wellbore. The delivery system can be a chemical dispenser which can be attached to a plunger used in plunger lift operations, a plunger which has been impregnated with treatment chemicals, a plunger/dispenser apparatus which has an interface section for interfacing with the inside of the tubing and a dispenser section. Automatic recharging or reapplication of chemicals to the chemical delivery system can be accomplished with a chemical application assembly attached to the plunger manifold.
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