Overview
EN ISO 17078-2:2007 (ISO 17078-2:2007) is an international standard, adopted by CEN, that defines requirements for subsurface flow‑control devices installed in side‑pocket mandrels used in the global petroleum and natural gas industries. The standard covers specification, selection, design, manufacture, quality control, testing, performance verification and preparation for shipping of flow‑control devices, including guidance for performance testing and calibration procedures. It does not cover installation/retrieval, centre‑set mandrels, tubing‑retrievable devices, side‑pocket mandrels themselves, running/pulling tools, latches, or reconditioning of used devices.
Key topics and technical requirements
The standard structures requirements to support purchaser choice and equipment reliability. Core topics include:
- Functional and technical specifications for flow‑control devices (design characteristics, operational parameters, compatibility with well hardware)
- Quality control and supplier requirements (documentation, product identification, manufacturing controls)
- Design validation and testing grades - multiple grades for design validation, product functional testing and quality control so users can select an appropriate level of verification
- Environmental service classes - four service classes to match well environments and operating conditions
- Performance testing and calibration procedures, including numerous normative annexes that define test methods such as:
- dynamic flow testing and flow‑coefficient calculation
- back‑check and opening/closing pressure testing
- bellows actuation life‑cycle and erosion testing
- interface, insertion, probe/travel and leakage rate testing
- guidance for test facilities and predictive correlations (informative annexes)
- Design verification and allowable changes after manufacture, plus shipping/storage preparation requirements
Applications and who uses it
EN ISO 17078-2:2007 is practical for:
- Manufacturers and suppliers of flow‑control devices seeking to demonstrate conformity and supply consistent, tested products
- Purchasers and operators who specify flow‑control devices for downhole installations and need standardized selection and testing criteria
- Design and materials engineers responsible for device design validation and well compatibility checks
- Quality managers and test laboratories performing product functional testing, calibration and performance validation
- Procurement teams using the standard to define contractual testing, grades and environmental service classes
Use cases include product specification in procurement documents, factory acceptance testing, in‑house performance verification, and preparing devices for shipment to well sites.
Related standards
- ISO 17078‑1 - Side‑pocket mandrels (Part 1)
- ISO 17078‑3 - Running, pulling and kick‑over tools, and latches (Part 3)
- ISO/TC 67 committee outputs and other drilling & production equipment standards for integrated well systems
Keywords: EN ISO 17078-2:2007, flow-control devices, side-pocket mandrels, petroleum and natural gas, drilling and production equipment, performance testing, design validation.
