PR-1045 – Hazardous Substances – PDO

Hazardous substances are often used or encountered in Well Services Operations. These chiefly include:

• Flammable fluids: used in stimulation, sand control, and clean-up operations;
• Acids used for Well stimulation;
• Cryogenic Nitrogen is used for nitrogen lifting;
• Explosive devices used for well perforating, tubular cutting, backing-off pipe, and side wall sampling;
• Radioactive sources used in well logging operations;
• Naturally Occurring Radioactive Materials (NORM) that may be encountered mainly as LSA scale on tubing, etc. retrieved from wells.

By definition, hazardous materials require the introduction of formal safety measures and precautions in order to minimize the risk of injury to personnel and damage to assets.

Scope

This Procedure is applicable to all Well Services operations conducted either by PDO or Contractor personnel on all production wells operated by PDO

Purpose

This Procedure sets out the standards for Well Services operations conducted on PDO-operated wells using hazardous substances. It forms a framework from which detailed work practice safety procedures can be developed and maintained by contractor companies who perform Well Services operations using hazardous substances on behalf of PDO. It should also be used as a reference document in conjunction with other specific Well Services Procedures when compiling individual well programs.