Abstract: Presented are systems and methods for dampening vibrations transmitted to a sensor assembly based on well drilling operations. Vibration isolators are distributed around a sensor assembly and retained in their desired location. The sensor assembly and retained vibration isolators are inserted in a shrinkable thin-walled tube and the thin-walled tube is shrunk to constrict the inner surface of the thin-walled tube, and the retained vibration isolators against the outer surface of the sensor assembly. Additionally, the constricted thin-walled tube restrains a wiring harness associated with the sensor assembly in a wire well traversing the axial direction of the sensor assembly.

Abstract: Presented are systems and methods for dampening vibrations transmitted to a sensor assembly based on well drilling operations. Vibration isolators are distributed around a sensor assembly and retained in their desired location. The sensor assembly and retained vibration isolators are inserted in a shrinkable thin-walled tube and the thin-walled tube is shrunk to constrict the inner surface of the thin-walled tube, and the retained vibration isolators against the outer surface of the sensor assembly. Additionally, the constricted thin-walled tube restrains a wiring harness associated with the sensor assembly in a wire well traversing the axial direction of the sensor assembly.

Abstract: A well logging apparatus includes a probe having a detector assembly. In an exemplary embodiment, the detector assembly includes a scintillator having scintillation a crystal capable of producing light when exposed to gamma rays, aphoto-multiplier, and an optical interface positioned between the scintillator and the photo-multiplier. The optical interface optically couples the scintillator and the photo-multiplier. The optical interface includes a gadolinium doped filter glass.

Abstract: A method and apparatus for monitoring and measuring gas concentrations in combustor applications is provided, wherein the apparatus is a gas sensor having a plurality of electrodes cooperating with a single electrolyte cell for detecting the presence and concentration of gaseous components of a flue gas. A voltage is generated based on the flow of ions caused by differing gas concentrations as detected by electrodes across the electrolyte. The change in voltage is correlated and is used to determine the concentration of detected gases, such as combustible gases, nitric oxides, carbon monoxide, etc., contained in the flue gas. The combustor operation may then be optimized to enhance efficiency and minimize undesired gas concentrations in the flue gas in a desired fashion. A calibration gas may be introduced to calibrate the apparatus and a reference gas may be provided to an electrode as a basis for correlating the concentrations of the gases.

Abstract: A well logging apparatus includes a probe having a detector assembly. In an exemplary embodiment, the detector assembly includes a scintillator having scintillation a crystal capable of producing light when exposed to gamma rays, a photo-multiplier, and an optical interface positioned between the scintillator and the photo-multiplier. The optical interface optically couples the scintillator and the photo-multiplier. The optical interface includes a gadolinium doped filter glass.