| 摘要 |
A method for launching multiple tools within a pipeline in embodiments of the invention may include one or more of the following steps: (a) stopping fluid flow within the pipeline, (b) opening a trap door, (c) draining a trap, (d) inserting a first tool into the trap, (e) coupling a second tool to the trap door, (f) shutting the trap door, (g) resuming flow within the pipeline to carry the first tool down the pipeline, and (h) releasing the second tool at a predetermined time. |
