Overview
EN ISO 17078-1:2004/A1:2010 is a minor amendment to the international/CEN standard for the petroleum and natural gas industries covering drilling and production equipment - Part 1: side‑pocket mandrels. This amendment is administrative/technical but limited in scope: it updates a single numerical tolerance in an informative annex (B.1.4.6.2). The document was processed under ISO/CEN parallel procedures and issued as a Final Draft Amendment in 2009–2010.
Key fact (Amendment):
- Page 29, clause B.1.4.6.2 (last sentence): change 5% to 10%.
Key Topics
The standard and its amendment relate to core subjects associated with side‑pocket mandrels used in downhole completion systems. Main topical areas include:
- Scope and definitions for side‑pocket mandrels in drilling and production operations.
- Dimensional requirements and tolerances, including the amended numerical tolerance in Annex B.
- Design and manufacturing considerations that ensure interchangeability and operational safety.
- Inspection, marking and documentation expectations to support quality control and procurement.
- Compatibility and installation guidance for use in completion strings and with control devices (general scope implied by the standard title).
Note: The amendment is explicitly minor and changes only the single percentage tolerance cited above.
Applications
This standard (and its Amendment 1) is directly applicable to organizations and professionals involved with downhole completion components:
- Equipment manufacturers producing side‑pocket mandrels and related completion hardware.
- Completion and drilling engineers specifying components for well completions in oil and gas wells.
- Quality assurance / inspection teams verifying conformance to standards and dimensional tolerances.
- Procurement and technical buyers who require standardized specifications for sourcing mandrels.
- Regulators and certification bodies referencing harmonized standards for safety and conformity.
By clarifying tolerances and standardizing requirements, EN ISO 17078-1 helps reduce interchangeability issues and improves reliability in production and remediation operations.
Related Standards
- ISO/TC 67 series standards for materials, equipment and offshore structures in the petroleum and natural gas industries.
- Other parts of the ISO 17078 series (where applicable) covering complementary components of drilling and production equipment.
Keywords: EN ISO 17078-1:2004/A1:2010, side‑pocket mandrel, petroleum and natural gas, drilling and production equipment, tolerance amendment, CEN, ISO 17078-1 amendment.
