| 摘要 |
A sensor assembly ( 51 ) for sensing one or more fluid properties of a fluid in a subsurface well ( 12 ) having a well fluid level ( 42 W), a surface region ( 32 ) and a riser pipe ( 30 ) includes a sensor apparatus ( 52 ) and a pump assembly ( 54 ) that are positioned within the well ( 12 ). The sensor apparatus ( 52 ) includes a sensor ( 682 ) that senses one of the fluid properties. The pump assembly ( 54 ) can be positioned in an in-line manner relative to the sensor apparatus ( 52 ). The pump assembly ( 54 ) can be positioned between the sensor apparatus ( 52 ) and the surface region ( 32 ). Alternatively, the sensor apparatus ( 52 ) can be positioned between the pump assembly ( 54 ) and the surface region ( 32 ). In one embodiment, the sensor apparatus ( 52 ) is positioned above the well fluid level ( 42 W). The pump assembly ( 54 ) can pump fluid toward the sensor apparatus ( 52 ) or the pump assembly ( 54 ) can pump fluid to draw more fluid to the sensor apparatus ( 52 ). The pump assembly ( 54 ) can be a two-line, two-valve pump that is removable from the riser pipe ( 30 ). The sensor assembly ( 51 ) can include a controller ( 17 ) that receives data from the sensor ( 682 ) regarding one of the fluid properties of the fluid. |
