Patent ID: 11867031
Assignee: TENAX ENERGY SOLUTION, LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 11:
12. A method of using a system, the system comprising:
a cased wellbore positioned beneath a ground surface, at least a portion of the cased wellbore containing a mixture of fluid and sand;
a tubular string installed within the cased wellbore and having an upstream end and a downstream end, at least a portion of the tubular string containing fluid;
a downhole tool attached to the downstream end of the tubular string and submerged within the mixture of fluid and sand within the cased wellbore, the downhole tool comprising:
an elongate tubular body having a plurality of perforations formed therein, the plurality of perforations positioned throughout a length of the body;

a check valve incorporated into the tubular string and positioned upstream from the downhole tool; and
a swab cup attached to a line and installed within the tubular string;
the method comprising:
submerging the swab cup within fluid contained within the tubular string;
pulling the swab cup upstream towards the ground surface using the line;
causing the mixture of fluid and sand to flow through one or more of the plurality of perforations and into an interior of the body of the downhole tool;
causing the mixture of fluid and sand to flow through the check valve; and
retaining the sand within the tubular string and upstream from the check valve.