| US 7,475,731 B2 | ||
| Sand plunger | ||
| Bruce M. Victor, Fort Lupton, Colo. (US) | ||
| Assigned to Production Control Services, Inc., Frederick, Colo. (US) | ||
| Filed on Apr. 14, 2005, as Appl. No. 11/105,753. | ||
| Claims priority of provisional application 60/562634, filed on Apr. 15, 2004. | ||
| Prior Publication US 2005/0230120 A1, Oct. 20, 2005 | ||
| Int. Cl. E21B 43/12 (2006.01); E21B 33/08 (2006.01) | ||
| U.S. Cl. 166—372 [166/177.3; 166/153; 166/105; 166/68] | 10 Claims |
| 10. A method of clearing downhole accumulations from a plunger, the method comprising the steps of:
providing a plunger comprising a mandrel having an upper end, a lower end, and a fluid channel extending the longitudinal
length of said mandrel,
said fluid channel in communication with one or more holes extending radially and outwardly from a substantial portion of
said channel length and to a peripheral surface of said plunger;
positioning said plunger in a well tubing;
allowing said plunger to ascend in said well tubing and carry liquids and downhole accumulations to a well top;
allowing a downhole gas to flow through said fluid channel portion and said one or more holes to clear said downhole accumulations
from at least a portion of said peripheral surface of said plunger.
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