In an example, a method of repairing a pipeline includes isolating a section of a pipeline that includes a leak site. The method includes flooding the section of the pipeline with a plug formulation that includes artificial platelets and an ultraviolet (UV) photoinitiator. The section may be pressurized to induce migration of the artificial platelets to the leak site. The method also includes draining excess plug formulation from the section of the pipeline. The method further includes exposing the UV photoinitiator to UV light to form a gas impermeable seal at the leak site.

A method of reducing a leak or a risk of a leak of a pipe system is disclosed. The pipe system is filled with a composition that includes metal powder and xylenes, and a pressure is applied to the filled pipe system and the pipe system is drained of said composition. Also, the use of a composition for reducing a leak or a risk of a leak of a pipe system is disclosed.

The present invention provides certain chemical compounds or materials having adhesive properties or functionality that act as adhesives or sealants in a variety of applications. In particular, the invention, including its various embodiments, relates to certain functional graphenic materials having an attached adhesive moiety that provides adhesive properties or functionality to the resulting compound and that can be used as an adhesive or sealant in a variety of applications, such as in-situ repair of a leak or defect in a tube carrying a fluid, such as a condenser tube in a power plant.

The present invention provides certain chemical compounds or materials having adhesive properties or functionality that act as adhesives or sealants in a variety of applications. In particular, the invention, including its various embodiments, relates to certain functional graphenic materials having an attached adhesive moiety that provides adhesive properties or functionality to the resulting compound and that can be used as an adhesive or sealant in a variety of applications, such as in-situ repair of a leak or defect in a tube carrying a fluid, such as a condenser tube in a power plant.

The present invention provides systems and methods for curing a leakage in a pipeline, the system including at least one gel pig and at least one sealant composition; wherein the at least one gel pig and the at least one sealant composition form a pig train, adapted to move along the pipeline to a region of the leakage and to seal the leakage.

The present invention provides systems and methods for curing a leakage in a pipeline, the system including at least one gel pig and at least one sealant composition; wherein the at least one gel pig and the at least one sealant composition form a pig train, adapted to move along the pipeline to a region of the leakage and to seal the leakage.

The present invention provides methods and methods for curing a leakage in a pipeline, the method including at least one gel pig and at least one sealant composition; wherein the at least one gel pig and the at least one sealant composition form a pig train, adapted to move along the pipeline to a region of the leakage and to seal the leakage.

The present invention provides methods and methods for curing a leakage in a pipeline, the method including at least one gel pig and at least one sealant composition; wherein the at least one gel pig and the at least one sealant composition form a pig train, adapted to move along the pipeline to a region of the leakage and to seal the leakage.

The present invention provides leakage plugging devices and methods for sealing a leakage at a remote site in a pipe, the device including a porous carrier plug of a deformable material including pores and at least one sealant composition disposed in the pores, wherein the porous carrier plug is adapted to transport the at least one sealant composition from a first site to a remote site and to plug the leakage at the remote site.

The present invention provides leakage plugging devices and methods for sealing a leakage at a remote site in a pipe, the device including a porous carrier plug of a deformable material including pores and at least one sealant composition disposed in the pores, wherein the porous carrier plug is adapted to transport the at least one sealant composition from a first site to a remote site and to plug the leakage at the remote site.