Abstract: A position sensor and a position sensor system, including a feeler, a force transfer element operably connected to the feeler, a force receiver operably connected to the force transfer element, and a force quantifier operably connected to the force receiver. A method for sensing position of a wet connector in a downhole environment, including running a position sensor on an upper wet connector to a target location, contacting a feeler block location on a lower wet connector, stroking the feeler, receiving a force at the force receiver, and communicating the received force to the force quantifier. A borehole system including a borehole in a subsurface formation, a position sensor disposed in the borehole.

Abstract: A production system placed inside a wellbore has a production tubing and an ESP for flowing fluid from the wellbore into the production tubing. A sensor string including distributed sensors is placed along the sensor string and provides temperature measurements along the production tubing uphole of the ESP. A controller determines from the temperature measurements a change in temperature that exceeds a threshold and determines therefrom level of a liquid in the wellbore.

Abstract: In one aspect, a production system is disclosed that in one embodiment may include a production tubing placed inside the wellbore, an ESP in the wellbore for flowing fluid from the wellbore into the production tubing, a sensor string including distributed sensors along the sensor string that provides temperature measurements along the production tubing uphole of the ESP, and a controller that determines from the temperature measurements a change in temperature that exceeds a threshold and determines therefrom level of a liquid in the wellbore.