An integrity monitoring system for a lined pipeline is provided for monitoring the integrity of a polymer liner in a host pipe. Methods and apparatus are described by which a lined pipeline is provided with such an integrity monitoring system sensor cable is able to bridge a joint between sections of lined pipe, for example by routing the sensor cable across the joint via a channel in an electrofusion fitting or by connecting successive lengths of sensor cable via pass-throughs in an electrofusion fitting. Advantageously, the sensor cable is disposed within a continuous annulus between linings and host pipes, and the continuous annulus is maintained across pipe joints using electrofusion fittings.

A seat leak measurement system for a ball valve is described. The system includes: a ball valve with a cavity drain line, the ball valve including a cavity pressure sensor; a valve seat leak measurement apparatus including: a cable with a connector, the connector having an external grounding cable; an apparatus electronic control system in communication with the valve sensor retrieval fitting and with valves of the valve seat; an fluid inlet line with a quick pipe coupler, the fluid inlet line having an apparatus drain valve and an isolation valve; a pressure indicator transmitter connected to the fluid inlet line, the pressure indicator transmitter in electronic communication with the apparatus electronic control system; a temperature indicator transmitter connected to the fluid inlet line, the temperature indicator transmitter in electronic communication with the apparatus electronic control system; and a flow elements manifold receiving fluid from the fluid inlet line.

A low cost, low power, passive optical methane monitoring system for fixed-position installation at oil and gas production well pads and gathering centers is disclosed. The optical methane monitoring system disclosed can be a scannable field of view Near Infrared (NIR) filter photometer to detect and quantify methane concentration in a two dimensional or a three dimensional grid above and around a facility. A randomized fiber optic bundle is disclosed that can be used to direct the total optical power from a collection lens to two or more isolated optical channels. Band pass filters isolate a desired wavelength range for transmission measurements for the two or more channels. Also disclosed is an absorption algorithm which accounts for variable background spectral intensity as well as correcting for water vapor and overall scattering effects to measure methane concentration for a given field of view.

A wireless sensing device for environmental monitoring of a location is provided. The sensing device includes an electronic system and a housing for securing and protecting the electronic system in a cavity therein. The housing includes a vented top portion defining the cavity, and a wicking base portion including wicking material attached to and covering an exposed underside of the top portion. The electronic system includes: a temperature and humidity sensor for sensing a current temperature and humidity of the location and converting the sensed temperature and humidity to temperature and humidity signals; a wireless transmitter for periodically wirelessly transmitting the temperature and humidity signals from the location to an external computing device; an alerting device for providing an audible, visual, or tactile signal from the location in order to alert a user of a condition of interest; and a microcontroller for controlling the electronic system devices.

A sensor assembly includes a controller, a sensor, and a housing. The housing encloses the controller and sensor and includes a body supporting the controller and a head supporting the sensor. The body prevents exposure of the controller to an external environment, and the head includes slots enabling exposure of the sensor to the external environment.

Methods, apparatus, systems and articles of manufacture are disclosed for leak detection from a thief hatch. An example thief hatch includes a vent control stem coupled to first and second sealing plates, the first and second sealing plates to control fluid flow through the thief hatch based on translation of the vent control stem, and an indicator extending from the vent control stem to provide a visual indication of a condition of the fluid flow.

A gas monitoring image recording device, a gas monitoring image recording method, and a gas monitoring image recording program according to the present invention involve: acquiring gas monitoring image data including a plurality of time-series images for use in monitoring a gas leak; extracting a leakage candidate area as a candidate for a gas leak based on the gas monitoring image data acquired; extracting predetermined features related to the gas leak in response to extracting the leakage candidate area; and causing a storage unit to store the features extracted in association with the gas monitoring image data from which the leakage candidate area has been extracted.

Systems and methods for adjusting operation of a train are disclosed. A method may include: receiving one or more infrared images of a brake line of the train; detecting one or more leaks of the brake line based on the one or more infrared images; and adjusting a brake command based on the detected one or more leaks.

An in situ leakage detection system for protecting and monitoring buried non-metallic pipelines is provided. The system includes flexible composite mats arranged below and above the pipeline. Sensors, including, distributed optical fiber sensors (DOFS) are affixed to the pipe-facing mat surfaces and extend lengthwise along the pipeline. An optical time domain reflectometry (OTDR) reading unit is configured to provide optical signals to the DOFS and analyze the returned optical signal. The OTDR unit can measure frequency and amplitude of anti-Stoke components of Raman scattering signals and a time-distance of the signals to detect localized changes in temperature along the pipeline. The system is further configured to detect leaks and determine a location of the leaks from the foregoing temperature changes and time-distance information. A method of installing and operating an in situ leakage detection system is also provided.

Devices, systems and methods for leak detection are provided herein. Also provided are devices, systems and methods for monitoring and/or measuring fluid usage. In some aspects, a system comprising a sensor, a processing system, and a platform are provided. In some aspects, the sensor may be coupled to a spinning device. The sensor can be configured to detect fluid data, which can comprise, for example, displacement data of liquid and/or movement data associated with the liquid in a container and/or flow data associated with a flow of fluid in a conduit. The processing system can be coupled with the sensor and configured to communicate the fluid data. The platform can comprise an application communicatively coupled to one or more databases storing evaluation data (e.g., known pattern data) and configured to receive the fluid data and determine if there is a leak.