Patent ID: 7997341

Claim:
A module connectable within a formation testing tool, wherein the formation testing tool has a sample flow line extending from a fluid sampling inlet configured to draw a fluid sample from a wellbore and/or subterranean formation into the sample flow line, the module comprising: a body forming a filter flow route and a bypass flow route in the sample flow line when connected within the tool; a filter connected within the filter flow route; a bypass valve in fluid connection with the filter flow route and the bypass flow route, wherein the bypass valve is operable between a filter position routing the fluid sample through the filter flow route and a bypass position routing the fluid sample through the bypass flow route; a purge valve in fluid connection with the filter flow route, the purge valve operable between an open position providing fluid communication between the filter flow route and exterior of the body and a closed position blocking the fluid communication; and a device moveably disposed with the filter, the device being configured to expel the fluid sample from the filter when moved toward the purge valve in the open position; wherein the module does not comprise the fluid sampling inlet configured to draw the fluid sample from the wellbore and/or subterranean formation into the sample flow line.