US 8,757,258 B2Granted

Cascading liquid air removal filter system and method

OwnerTerry Hager, Pam Hagerinventors

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Abstract

A cascading liquid air removal filter system is disclosed. Said system comprising a filter system having a bristles element. Said bristle element comprises a plurality of bristles each having a first end and a second end. Said bristles element comprises a plurality of fluid passages between said bristles. Said filter system is attached to a column of a well having one or more sections, between said column and a casing of said well. Said filter system comprises a filter outside diameter. Said casing comprises a casing internal diameter. Said filter outside diameter is equal to or larger than said casing internal diameter. Said fluid passages comprise a plurality of non-linear paths through said bristles element for a liquid passing through said filter system. Said filter system provides only said non-linear paths for said liquid to travel from a first end to a second end of said filter system.

Claims9

Dependent claims

A cascading liquid air removal filter method comprising minimizing a flow of a plurality of air bubbles into a pump under a liquid and in a well by:

attaching a filter system to a column of a well between said column and a casing and above a drawdown liquid level within said well,
slowing a cascading liquid prior to splashing a liquid surface by forcing said cascading liquid to trickle through a plurality of bristles in said filter system;
slowing said cascading liquid comprises
forcing said cascading liquid to pass through said filter system and
slowing said cascading liquid into a trickling liquid by
blocking a portion of a space between a static liquid level and said drawdown liquid level,
allowing said cascading liquid to penetrate said plurality of bristles along a one of a plurality of non-linear paths between a first end and a second end of said filter system, and
trickling said liquid through said filter system and thereby slowing said cascading liquid into a trickling liquid;
trickling said cascading liquid through said filter system comprises hitting said cascading liquid with said plurality of bristles as said cascading liquid is pulled downward through said filter system;
and wherein,
said liquid comprises said liquid surface at a liquid level of said liquid in said well
said liquid comprises said cascading liquid while falling toward said liquid surface,
said drawdown liquid level comprises said liquid level when said pump is pumping,
said static liquid level comprises said liquid level when said pump is not pumping,
said filter system comprises said plurality of bristles, and
said filter system comprises a bristles element having a plurality of bristles attached to a central portion of said filter system.

13 more elements

A cascading liquid air removal filter method comprising minimizing a flow of a plurality of air bubbles into a pump under a liquid and in a well by:

attaching a filter system to a column of a well between said column and a casing and above a drawdown liquid level within said well,
slowing a cascading liquid prior to splashing a liquid surface by forcing said cascading liquid to trickle through a plurality of bristles in said filter system;
slowing said cascading liquid comprises
forcing said cascading liquid to pass through said filter system and
slowing said cascading liquid into a trickling liquid by
blocking a portion of a space between a static liquid level and said drawdown liquid level,
allowing said cascading liquid to penetrate said plurality of bristles along at least one of a plurality of non-linear paths between a first end and a second end of said filter system, and
trickling said liquid through said filter system and thereby slowing said cascading liquid into a trickling liquid;
trickling said cascading liquid through said filter system comprises hitting said cascading liquid with said plurality of bristles as said cascading liquid is pulled downward through said filter system;
and wherein,
said liquid comprises said liquid surface at a liquid level of said liquid in said well,
said liquid comprises said cascading liquid while falling toward said liquid surface,
said drawdown liquid level comprises said liquid level when said pump is pumping,
said static liquid level comprises said liquid level when said pump is not pumping,
said filter system comprises said plurality of bristles, and
said filter system comprises a bristles element having a plurality of bristles attached to a central portion of said filter system.

13 more elements

Dependencies are inferred from the claim text.