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For Industry Review: DACC IRP Volume #04 - Well Testing and Fluid Handling

Well Testing and Fluid Handling Industry Recommended Practice (IRP) provides guidelines for well testing and fluid handling operations for all personnel.
April 17, 2024

IRP 4  was opened for a full scope review in September of 2022. A considerable revision has been undertaken with addition of definitions, and topics of risk assessment, velocity modeling ,  flare stack sizing and Vacuum truck operation being a few.
The intended audience of this document includes oil and gas company engineers, field consultants, well testing and fluid hauling personnel, other specialized well services personnel and regulatory bodies. IRP 4 is divided into five sections that cover the following topics:
  • Roles and responsibilities for owners, contractors, and other subcategories of companies involved in well testing and fluid handling.
  • Worker safety that outlines requirements for on-site workers and environmental protection
  • West testing that provides recommendations for equipment design and operation, purging, and pressure testing.
  • Specific flowback related recommendations to cover off a variety of operations including flowing, pumping, or circulating to an open tank system, swabbing, snubbing, and recovery and handling of liquid petroleum gases.
  • Loading, unloading and transportation of fluids.
Developer: DACC
Sponsor Organization: PSAC
Current Status: Out for 90-day Industry Review
Feedback: To provide feedback or comments regarding the IRP 4 Draft or any of the defined terms, please use the Feedback Form and send it to  and include "IRP 4 Feedback" in the subject line.