A leakage detection method for a long petroleum pipeline based on AFPSO-K-means includes: initializing a particle swarm, and defining an initial velocity and an initial position of each particle in the particle swarm; determining a fitness value of the each particle; traversing the fitness value of the each particle to obtain an optimal position corresponding to the fitness value of the each particle and a global optimal position in optimal fitness values of the particle swarm; iteratively updating a velocity and a position of the each particle based on the optimal position corresponding to the fitness value of the each particle; and when a distance from the position of the each particle to the global optimal position is less than a preset threshold or a number of iterations reaches a preset value, outputting a current iteration updated result to determine an actual leakage position of the petroleum pipeline.

A leakage detection method for a long petroleum pipeline based on AFPSO-K-means includes: initializing a particle swarm, and defining an initial velocity and an initial position of each particle in the particle swarm; determining a fitness value of the each particle; traversing the fitness value of the each particle to obtain an optimal position corresponding to the fitness value of the each particle and a global optimal position in optimal fitness values of the particle swarm; iteratively updating a velocity and a position of the each particle based on the optimal position corresponding to the fitness value of the each particle; and when a distance from the position of the each particle to the global optimal position is less than a preset threshold or a number of iterations reaches a preset value, outputting a current iteration updated result to determine an actual leakage position of the petroleum pipeline.

Leak detection device having a dome with a main body and a seal configured to define a detection chamber between the main body and the test zone, the seal including a peripheral sealing lip configured to come into contact with the sealing membrane and having a closed contour encircling the detection chamber, an analysis tool connected to the detection chamber to analyze a gas present in the detection chamber in which the sealing lip is configured to have at least in a service state in which a reduced pressure is applied in the detection chamber, a pinch portion that is pinched between the main body and the sealing membrane.

The invention relates to a leak detection device comprising: a portable leak detection bell-like member comprising a sealing joint and configured to define a detection chamber between the main body and the test zone, the detection bell-like member further comprising a carrying handle which is provided with a control member which can be manually activated to produce a control signal, a gas suction circuit which is intended to connect the detection chamber to a vacuum pump, the gas suction circuit being provided with a controlled valve which can be switched into an open state to connect the detection chamber to the vacuum pump and a closed state to isolate the detection chamber from the vacuum pump, and a control unit which is configured to switch the controlled valve in response to the control signal.

An automated method of inspecting a pipe includes: positioning the pipe with respect to a laser scanner using a positioning apparatus; scanning a size of the positioned pipe by the laser scanner; identifying a specification and historical data of the pipe's type by inputting the scanned size to an artificially intelligent module trained through machine learning to match input size data to standardized pipe types and output corresponding specifications and historical data of the pipe types; scanning dimensions of the positioned pipe by the laser scanner using a dimension portion of the identified historical data; comparing the scanned dimensions with standard dimensions from the identified specification; detecting a dimension nonconformity when the scanned dimensions are not within acceptable tolerances of the standard dimensions; and in response to detecting the dimension nonconformity, generating an alert and updating the dimension portion of the identified historical data to reflect the detected dimension nonconformity.

An automated method of inspecting a pipe includes: positioning the pipe with respect to a laser scanner using a positioning apparatus; scanning a size of the positioned pipe by the laser scanner; identifying a specification and historical data of the pipe's type by inputting the scanned size to an artificially intelligent module trained through machine learning to match input size data to standardized pipe types and output corresponding specifications and historical data of the pipe types; scanning dimensions of the positioned pipe by the laser scanner using a dimension portion of the identified historical data; comparing the scanned dimensions with standard dimensions from the identified specification; detecting a dimension nonconformity when the scanned dimensions are not within acceptable tolerances of the standard dimensions; and in response to detecting the dimension nonconformity, generating an alert and updating the dimension portion of the identified historical data to reflect the detected dimension nonconformity.

The invention concerns the field of container closure integrity (CCI) and the testing of CCI and relates to a device and a method for providing a displacement of a rubber stopper for leakage testing of a connection between the rubber stopper and a corresponding drug container which can be used for storing drugs under sterile conditions and which is closed by said rubber stopper.

The present invention addresses to a method for the identification of operational problems based on the hydrodynamic characterization of the gas-lift and production well/lines set, by means of the injection of an alcohol, preferably ethanol, in the gas-lift line. The detection of the passage and the return of the alcohol is carried out by the direct analysis of information about the process variables (pressure and temperature at the bottom of the well, at the Christmas tree and at the surface, gas or liquid flowmeters, etc.). Preferably, this detection should also be confirmed by measuring the alcohol concentration at the return, either by sequential collection of samples of the liquid produced by the well and subsequent physicochemical analysis in the laboratory, or by an online meter specially installed for this purpose. A practical sample collection procedure has been developed for application together with this invention.

Chemical analysis methods for the determination of small amounts of water in alcohol are known from the State of the Art, but the reverse is not found. Thus, procedures for analyzing small amounts of alcohol in water have been specially developed for application together with this invention.

The present invention addresses to a method for the identification of operational problems based on the hydrodynamic characterization of the gas-lift and production well/lines set, by means of the injection of an alcohol, preferably ethanol, in the gas-lift line. The detection of the passage and the return of the alcohol is carried out by the direct analysis of information about the process variables (pressure and temperature at the bottom of the well, at the Christmas tree and at the surface, gas or liquid flowmeters, etc.). Preferably, this detection should also be confirmed by measuring the alcohol concentration at the return, either by sequential collection of samples of the liquid produced by the well and subsequent physicochemical analysis in the laboratory, or by an online meter specially installed for this purpose. A practical sample collection procedure has been developed for application together with this invention.

Chemical analysis methods for the determination of small amounts of water in alcohol are known from the State of the Art, but the reverse is not found. Thus, procedures for analyzing small amounts of alcohol in water have been specially developed for application together with this invention.

A system and method of checking sealing of a brake caliper housing. The method may include determining a level of moisture in a cavity of a brake caliper housing with a sensor. In another configuration, the method may determine whether a detected pressure inside the cavity remains stable for a predetermined period of time.