Pipeline plug module with protection bars forming a strong beam

The pipeline isolation tool addresses the issue of incomplete protection bars by using full-length protection bars made of 17-4PH steel to support radial loads and prevent slip-teeth contact, ensuring smooth pigging and pipeline protection.

WO2026125601A1 Publication Date: 2026-06-18TDW OFF SHORE SERVICE CO LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
TDW OFF SHORE SERVICE CO LTD
Filing Date
2025-12-11
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing pipeline isolation tools lack protection bars that extend the full length of the slips, leading to potential damage from radial loads and contact with pipeline components during pigging, especially in bends and components with varying IDs.

⚗Method used

The pipeline isolation tool incorporates protection bars that span the full length of the slips, supported at both ends, made of high-strength 17-4PH steel, which act as a strong beam to support radial loads and prevent contact between the slips and the pipe wall or pipeline components.

🎯Benefits of technology

The protection bars effectively support radial loads and prevent damage by ensuring a slick contact surface during pigging, even through bends and components with varying IDs, thereby maintaining tool integrity and preventing pipeline wear.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

Embodiments of a pipeline isolation tool (M) of this disclosure include a set of protection bars (10) that extend a full length of the slips (20) when the slips are in a radially retracted position and present a raised sliding surface to the pipe wall, thereby protecting the slips. The protection bars also form a beam supporting a radial load directed toward an axial centerline of the pipeline isolation tool when the slips are in the radially retracted position.
Need to check novelty before this filing date? Find Prior Art