Provided is a method, system, and sensor device for identifying and detecting presence of a leak in a fluid conduit. The sensor device freely flows with a fluid within the fluid conduit. The sensor device includes an outer capsule that is free flowing within the fluid and provides fluid-tight containment to an interior compartment, at least one acoustic sensor mounted within the interior compartment, wherein the at least one acoustic sensor senses acoustic properties of the fluid to detect the presence of the leak, and a conductor for activating the at least one acoustic sensor to sense the acoustic properties of the fluid and the fluid conduit, wherein the conductor passes from the interior compartment and through to the outer capsule.

Provided is a method, system, and sensor device for collecting fluid data and fluid conduit data. The sensor device includes an outer capsule that is free flowing within the fluid and provides fluid-tight containment to an interior compartment, at least one sensor mounted within the interior compartment, wherein the at least one sensor senses fluid data and fluid conduit data, the sensed fluid properties being the collected fluid data, and a conductor for activating the at least one sensor to sense fluid data and fluid conduit data, wherein the conductor passes from the interior compartment and through the outer capsule.

This invention relates to a device and method which can be used to detect the location of one or more leaks within a pipeline, by passing the device along the interior of the pipeline. The device includes audio detection means to detect the presence of leaks. Surface mounted apparatus is also provided to allow the passage of the device along the pipeline to be monitored and the position of the device with respect to the pipeline to be detected.

The disclosed technology provides ways to suppress or eliminate the effects of roadnoise when performing acoustic leak detection in a wellbore environment. In some aspects, a method of the technology includes steps for receiving acoustic training data, wherein the acoustic training data comprises signals representing acoustic tool contact with a wellbore surface, and generating a suppression model based on the acoustic training data, wherein the suppression model is configured to suppress roadnoise received at a hydrophone array disposed within the wellbore. Systems and machine-readable media are also provided.

The system utilizes conductivity equipment as well as a camera, pressure sensor, and acoustic hydrophone within a probe deployed via cable into a pipe to be inspected. The probe completes an electric circuit back to ground when the probe is adjacent a defect through which electric currents can pass, thus producing varying electric current. The camera, incorporated into the electric probe, is utilized for both inspection and navigation through the pipe by providing a close-circuit video data feed. The pressure sensor detects alterations in the pressure and flow field of the fluidic region in the area of a leak. The acoustic hydrophone listens for the sound leaks in a pressurized pipeline. The inspection device is tethered to a cable and inserted a measured distance into the pipeline, typically with the pipeline under pressure, via a launch tube. Multi-sensor data versus pipeline position is thus obtained.

Self-leveling inspection systems for use in inspecting buried pipes or other cavities are disclosed. A camera head may include an image sensor, an orientation sensing module, and an image processing module configured to adjust an image or video provided from the image sensor, based at least in part on information provided from the orientation sensor, in the camera head.

Extensions exited from electrodes of an electroscan probe, allowing for operation in a wide range of pipe sizes, particularly large diameter pipes, by extending the maximum effective distance of the electric fields generated by the probe. The extensions preferably extend radially from each of the electrodes, and are sized to bring tips of the extensions close to the pipe wall. The extensions can be joined by lanyards to assist in keeping them spaced apart. At least some extensions preferably have bulbous tips, preferably at least partially formed of non-conductive material to keep adjacent extensions from touching each other, especially extensions coupled to different electrodes. The extensions, in one embodiment, are threaded into collars adjacent to each electrode and selected to have a length appropriate for the pipe diameter.

A pipeline leak detection device for detecting leaks in a pipe includes a sensor assembly guided into a pipe to detect evidence of a leak, and a position assessing device provides an indication of a location of the sensor assembly. The sensor assembly may be a hydrophone, and the position assessing device may be a guide wire with markings for measuring lengths of the guide wire, or a transmitter. An injector plug can be inserted in an access port of the pipe to create a liquid tight seal for insertion of the sensor assembly. A pressurizing device may also be connected to the access port to pressurize the pipe.

A method for sealing a leak in a pipeline used to transport fluid includes positioning a sealing device within the pipeline, moving the sealing device through the pipeline to a leak location, and internally generating an inflation pressure to inflate the sealing device to substantially cover a leak opening and limit release of the fluid from the pipeline.

A method for sealing a leak in a pipeline used to transport fluid includes positioning a sealing device within the pipeline, moving the sealing device through the pipeline to a leak location, and internally generating an inflation pressure to inflate the sealing device to substantially cover a leak opening and limit release of the fluid from the pipeline.