Safety 1st Advancer Manuel de l'opérateur télécharger pdf (Page 98)

Environmental Remediation Drilling

Safety Guideline

Page 98 of 132

5.7.2 - Potential Hazards for Moving Well Materials

Potential hazards include:

• Manual lifting of heavy bags and awkward lengths of pipe

• Slips trips and falls

• Pinch points

• Obstructions (overhead and pathway)

• Long lengths of piping

• Traffic

5.8 - Install Screen and Casing

Prior to installation of well screen and casing into the borehole the following items should be considered:

• Type of screen and casing PVC (manual installation) steel and stainless steel (rig installation)

• Weight of casing string (rig capacity)

• Overhead obstructions and clearance

• Connection type (threaded, welded)

Potential Hazards for Screen and Casing Installation include:

• Manual screen slotting

• Manual lifting of awkward lengths or heavy pipe

• Pinch points

• Obstructions (overhead and pathway)

• Connections

o Torque

o Pinch Points

o Pipe length and weight

o Hand Tools - pipe wrenches

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Safety 1st Advancer Manuel de l'opérateur Page 98