In-line piggable wye fitting, apparatus and method
AssigneeTeam Industrial Services, Inc.
InventorsJohn P. Kearns, Roel Delgado, Jr., Christian G. Larsen
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Abstract
A fitting for inserting a pig into a pipeline. The fitting comprises a cast body having a first end for connecting to a first end of a pipeline and a second end for connecting to a second end of the pipeline. The cast body further comprises a third end arranged at a predetermined angle to the first and second end of the cast body. A retractable guide within the cast body can be at least partially inserted into a run portion of the cast body for delivery or retrieval of the pig.
Claims20
A fitting for inserting a pig into a pipeline, comprising:
- a cast body having a first end and a second end, the first end for connecting to a first end of the pipeline and the second end for connecting to a second end of the pipeline;
- a third end of the cast body arranged at a predetermined angle to the first and second end of the cast body;
- and
- a retractable guide within the cast body for guiding the pig into a run portion of the cast body.
A method for inspecting a pipeline, comprising:
- operatively connecting a wye fitting to a pipeline that is to be inspected, wherein the wye fitting comprises:
- a cast body having a first end and a second end, the first end for connecting to a first end of the pipeline and the second end for connecting to a second end of the pipeline;
- a third end of the cast body arranged at a predetermined angle to the first and second end of the cast body;
- and
- a retractable guide within the cast body for guiding an inspection tool into a run portion of the cast body;
- connecting a launch vessel to the wye fitting;
- positioning the retractable guide at least partially into the run portion of the cast body;
- inserting the inspection tool into the pipeline through the run portion of the cast body;
- and
- inspecting the pipeline with the inspection tool.
A fitting for positioning a pig in a pipeline, comprising:
- a body having a first end and a second end, the first end for connecting to a first end of the pipeline and the second end for connecting to a second end of the pipeline, wherein the ends are in-line to the pipeline;
- and
- a retractable guide within the body for positioning the pig in the pipeline.
Dependencies are inferred from the claim text.