Sercel-GRC Corporation Patent applications |
Patent application number | Title | Published |
20150191981 | Sliding Joint for Use with a Downhole Tool - A mount for use with a downhole tool such as, but not limited to, an electrical submersible pump (“ESP”) gauge, includes a mounting means that does not use a fixed- or spring-connection between it and the outer housing of the sensitive assembly but rather makes use of a sliding joint. One end of the sliding joint is in communication with the sensitive assembly of the downhole tool and the other end of the sliding joint is in communication with another component of the downhole tool. The sliding joint is arranged relative to the sensitive assembly so that a radial movement of the sliding joint is restricted and an axial movement of the sliding joint is permitted. When in use, the sliding joint isolates the sensitive assembly from an axial load, thermal stress, or both axial load and thermal stress. | 07-09-2015 |
20140311235 | Downhole Quartz Gauge with Minimal Electronics - A system and method of monitoring a pressure, temperature, and/or vibration of a hostile environment without requiring the use of active electronics or an oscillator circuit in that environment. The system and method interrogate a resonant pressure sensor and a resonant or passive temperature sensor connected to a transmission line and located at least 100 feet (30.48 m) away from a network analyzer. The system and method use the reflected frequencies from the sensors to determine the pressure, temperature, and/or vibration. If the sensors are networked by the transmission line or a network filter, the reflected portion can include the reflected transmission energy. The applied signal and reflected portion travel along the transmission line, which is preferably impedance matched to that of the system. If a multi-conductor cable is used, the effects of the cable's length and temperature are compensated for via a system calibration when in field use. | 10-23-2014 |