Certain aspects of the subject matter described here can be implemented as a method. A location of an entrance to a pipeline pig launcher configured to launch a pipeline pig into a pipeline is determined by an automated pipeline pig handling system positioned at a starting location. The pipeline pig is self-aligned with the entrance to the pipeline pig launcher by the automated pipeline pig handling system. The entrance to the pipeline pig launcher is open. The pipeline pig is inserted by the automated pipeline pig handling system into the entrance to the pipeline pig launcher. The entrance to the pipeline pig launcher is closed by the automated pipeline pig handling system after the pipeline pig is inserted into the entrance. The automated pipeline pig handling system is self-returned to the starting location after inserting the pipeline pig into the entrance to the pipeline pig launcher.

A system and method for cleaning coils in a fired heater is provided. The cleaning system includes a data acquisition tool configured to pass through the coils to acquire data. The cleaning system is configured to establish a pre-cleaning fouling baseline derived from the data for the coils. The cleaning system is configured to develop an optimized cleaning plan for the coils based on the pre-cleaning fouling baseline. The optimized cleaning plan includes a focused cleaning for a fouling area in the coils. The cleaning system further includes at least one cleaning pig configured to clean the coils based on the optimized cleaning plan. The cleaning system further includes a decoking truck for cleaning the coils with the cleaning pig based on the optimized cleaning plan.

A method of cleaning a pipeline is performed by introducing a treatment composition comprising a colloidal particle dispersion having inorganic nanoparticles with an average particle size of from 500 nm or less into an interior of a pipeline to be cleaned. A pig or body is passed through the pipeline to spread the composition upon surfaces of the interior of the pipeline. The composition and materials adhering to the surfaces of the interior of the pipeline are removed to facilitate cleaning of the pipeline

A method of cleaning a pipeline is performed by introducing a treatment composition comprising a colloidal particle dispersion having inorganic nanoparticles with an average particle size of from 500 nm or less into an interior of a pipeline to be cleaned. A pig or body is passed through the pipeline to spread the composition upon surfaces of the interior of the pipeline. The composition and materials adhering to the surfaces of the interior of the pipeline are removed to facilitate cleaning of the pipeline

A method of cleaning a pipeline is performed by introducing a treatment composition comprising a colloidal particle dispersion having inorganic nanoparticles with an average particle size of from 500 nm or less into an interior of a pipeline to be cleaned. A pig or body is passed through the pipeline to spread the composition upon surfaces of the interior of the pipeline. The composition and materials adhering to the surfaces of the interior of the pipeline are removed to facilitate cleaning of the pipeline.

Disclosed is a pipe pigging system for cleaning a pig and controlling a speed of the pig, the pipe pigging system including a pig configured to clean an inside of a pipe for raw material supply while moving in the pipe, a first station connected to a raw material supply side that is one end of the pipe and configured to launch the pig and receive the returned pig, a second station connected to a raw material reception side that is the other end of the pipe and configured to receive the pig launched from the first station and launch the pig toward the first station, a first compressed air supply unit and a second compressed air supply unit configured supply compressed air to the first station and the second station, respectively, to move the pig, a first pig cleaning unit and a second pig cleaning unit connected to the first station and the second station, respectively, to clean the pig contaminated after cleaning the pipe, and a control unit configured to control a pigging operation of the pig launched and returned between the first station and the second station and a pigging speed of the pig.

A multiple pig launcher includes a tubular structure along which a series of pipeline pigs may be advanced in stepwise fashion to be launched into a pipeline in succession. A launching station holds a first pig at a downstream end of the series in readiness for launch. A pig stopper mechanism is operable selectively to hold a second pig at a holding station upstream of the launching station when launching the first pig and to release the second pig from the holding station to be advanced into the launching station after the first pig has been launched. The pig stopper mechanism comprises at least one radially movable gripper element that can apply radially inward gripping force to a pig held at the holding station.

A cleaning installation of a heat exchanger includes a heat exchanger linked upstream to an intake duct for a fluid and downstream to an outlet duct for the fluid. A system is provided for recovering cleaning bodies from the outlet duct after cleaning of the exchanger by the bodies and for reinjecting bodies into the intake duct. The system includes a member capable of being displaced between a first position in which the system is configured to recover and contain cleaning bodies in the mobile member, and a second position in which the system is configured to take fluid from the intake duct and reinject, into this duct, via the mobile member and under the action of the fluid taken, cleaning bodies contained in the member.

A conduit cleaning device is provided and includes a center structure having a center structure wall, a center structure top and a center structure bottom, wherein the center structure wall and center structure top define a center structure cavity and a center structure opening communicated with the center structure cavity. Additionally, a plurality of outer structures is provided, wherein the plurality of outer structures are associated with the center structure wall to extend out of and away from an outer surface of the center structure wall, wherein the plurality of outer structures are disposed in an inclined fashion between the center structure bottom and the center structure top and arranged along the outer surface of the center structure wall to form a helical pattern.

A pig trap of this disclosure may include one or more injectors or nozzles located along a sidewall of the barrel and oriented to deliver a jet of fluid toward a back side of a vertical member of a pig or tool. The nozzle may be part of an assembly that includes a longitudinally extending pipe having a flat-profile flange at an inlet end, a curved-profile flange at the nozzle end, and a bend in between the two ends. When the assembly is installed in a sidewall opening of a pig trap, the nozzle delivers a jet of fluid toward the back side of a vertical member of the pig. A leak path may be provided through flanges or formed between the sidewall opening and a periphery of the curved-profile flange. Launch forces of more than 10 to 15 times that of a conventional launcher may be achieved.