The present invention provides systems, methods and devices for sealing and/or curing a leakage at a remote site in a pipe, the system including a multiplicity of polymeric carrier plugs of a deformable material including pores, at least one sealant composition disposed in the pores; and a carrier liquid composition adapted to transport the multiplicity of polymeric carrier plugs to a site of the leakage, wherein at least some of the multiplicity of polymeric carrier plugs polymeric carrier plugs are adapted to transport the at least one sealant composition from a first site in the carrier liquid composition to a remote site and to seal the leakage at the remote site.

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 application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

The application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

In an embodiment, a plug formulation includes a mixture of a first part of a two-part epoxy system and artificial platelets formed from a polymeric material that expands upon exposure to ultraviolet (UV) light, moisture, or heat, wherein a portion of the first part of the two-part epoxy system is covalently bonded to a portion of the artificial platelets. In another embodiment, a plug formulation includes a mixture of a first part of a two-part epoxy system, an acrylate monomer, and artificial platelets formed from a polymeric material that expands upon exposure to ultraviolet (UV) light, moisture, or heat, wherein a portion of the first part of the two-part epoxy system is covalently bonded to a portion of the artificial platelets.

In an embodiment, a plug formulation includes a mixture of a first part of a two-part epoxy system and artificial platelets formed from a polymeric material that expands upon exposure to ultraviolet (UV) light, moisture, or heat, wherein a portion of the first part of the two-part epoxy system is covalently bonded to a portion of the artificial platelets. In another embodiment, a plug formulation includes a mixture of a first part of a two-part epoxy system, an acrylate monomer, and artificial platelets formed from a polymeric material that expands upon exposure to ultraviolet (UV) light, moisture, or heat, wherein a portion of the first part of the two-part epoxy system is covalently bonded to a portion of the artificial platelets.

The application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

The application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

The present invention provides a method for sealing a leakage at a remote site in a pipe, the method including introducing a fluid carrier composition including a hardener, a resin and at least one of a multiplicity of plugging devices and a multiplicity of cut fibers into the pipe at the first site under pressure and allowing the fluid carrier to transport the at least one of the multiplicity devices and the multiplicity of fibers to the remote site, wherein the at least of the multiplicity of devices and the multiplicity of the cut fibers penetrates the leakage thereby sealing and curing the leakage.