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January 29, 2021
Underbalanced Drilling (UBD) and Managed Pressure Drilling (MPD) Operations Using Jointed Pipe Industry Recommended Practice (IRP) provides an overview of these drilling operations. The IRP is intended to be used in the development, planning and completions of Returns Management Drilling (RMD), MPD and UBD Programs. This IRP has four parts: Underbalanced and Managed Pressure Drilling Operations; RMD Checklist; MPD Checklist; and Hazard and Risk Assessment Register - Risk Register.

file-icon IRP-22-Edition-3-DRAFT-Jan-2021.pdf
December 7, 2020
Worker Fatality During Trench Box Dismantling
A work crew was on location to dismantle a high arch trench box and then transport the disassembled box from one project work site to another. The disassembly process did not follow the manufacturer's instructions for the safe removal of the strut support pins holding the box together. Consequently, when the last strut support pin was removed from the box, it collapsed, causing a support arch to strike and fatally injure a worker.

file-icon SA2020-13-Trench-Box-Fatality.pdf

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