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US 6,648,072 B1Granted
Method and apparatus for delivery of treatment chemicals to subterranean wells
AssigneeSmith International, Inc.
InventorBilly Blanchard
Life of this patent
Estimating the term…
Abstract
A method and apparatus for delivering treatment chemicals to an oil and gas well. A flush pump siphons flush from the production line of a producing well and draws in a predetermined amount of treatment chemical into the siphoned flush and then discharges the combination into the well.
Claims9
A method for delivering treatment chemicals into a well, comprising the steps of:
- siphoning off a volume of flush from a production line of a well with a flush pump while the well remains in production;
- introducing treatment chemicals to a suction side of the flush pump to be combined with the flush;
- and
- discharging the combination of the treatment chemicals and flush into the well;
- wherein the flush pump comprises a rod that is reciprocatable within a housing, and wherein the rod has a plunger end located within the housing and as the plunger is moved in a first direction, flush is drawn into the housing through a first valve and as the plunger is moved in a second direction opposite from the first direction, the flush is ejected through a second valve.
2 more elements
Dependencies are inferred from the claim text.