Gravity enhanced maintenance screen

摘要

A maintenance screen for use in low-velocity, shallow or horizontal or slightly inclined wells is disclosed. The maintenance screen of the present invention utilizes a generally downwardly oriented portion through which fluid can pass and a generally upwardly oriented portion which does not allow sand or fluid to pass therethrough, so that sand naturally gravitates downward through the fluid and away from the portion of the screen through which the fluid may pass to enter the well tubing.