.~ Preventing flow into strainer while lowering by blocking openings
DEFINITION
Classification: 166/296
(under subclass 244.1) A process comprising the steps of preventing the flow of earth fluid into a well conduit through the openings of a preformed strainer or preformed filter while it is being lowered through a producing formation and then permitting flow of earth fluid through
said openings to produce the well.
SEE OR SEARCH THIS CLASS, SUBCLASS:
205, for screens with valves, closures or removable portions.
SEE OR SEARCH CLASS
175, Boring or Penetrating the Earth,
314, for drive points with screens which may have means for preventing entrance of fluid while driving the point into the ground.
