Methods for Expanding a Pipeline

A method of repairing a damaged portion of an underground pipeline positioned within a subterranean formation below the surface of the earth and having a flowbore, the method comprising:

• coupling one or more pipe sections, the one or more coupled pipe sections forming a throughbore;
• inserting the one or more pipe sections into the flowbore;
• positioning the one or more pipe sections within a damaged portion of the pipeline by at least one of pulling and pushing the one or more pipe sections;
• disposing an expansion device within the throughpassage;
• and
• displacing the expansion device along the throughpassage, wherein the one or more pipe sections are radially expanded into engagement with at least the damage portion of the pipeline.

A method of repairing a damaged portion of an underground pipeline positioned within a subterranean formation below the surface of the earth and having a flowbore, the method comprising:

• coupling one or more pipe sections end to end, the one or more coupled pipe sections forming a throughbore;
• inserting the one or more pipe sections into the flowbore;
• displacing the one or more pipe sections to a damaged portion of the pipeline;
• disposing an expansion device within the throughpassage;
• and
• displacing the expansion device along the throughpassage, wherein the one or more pipe sections are radially expanded into engagement with at least the damage portion of the pipeline.