optical window assembly of an optical sensor of a downhole tool that is positioned in a downhole penetrating an underground formation, downhole tool that is positionable in a downhole penetrating an underground formation, and method for detecting parameters of borehole fluid wellbore around a wellbore penetrating an underground formation

摘要

optical window assembly of an optical sensor of a downhole tool that is positioned in a downhole penetrating an underground formation, downhole tool that is positionable in a downhole penetrating an underground formation, and method for detecting parameters of borehole fluid well borehole around a borehole penetrating an underground formation. an optical window assembly of an optical sensor from a downhole tool that is positioned in a borehole penetrating an underground formation. the downhole tool has a housing with a flow line therethrough for receiving downhole fluid therein. The optical sensor is positioned around the flow line to measure light passing through it. the optical window assembly includes a tubular sensor body positioned in the housing (the sensor body having a sensor end and a signal end flanged with a passage therethrough), an optical window positionable in the sensor body passage for passing the flow line light for the optical sensors, a seal capable of being disposed around the sensor body, and a bearing ring capable of being disposed around the sensor body between the flanged signal end and the seal to support the seal around the sensor body, whereby downhole fluid is prevented from leaking between the seal and the sensor body.