Standards Development

Scope

To develop a safety standard for a drawwork based hoisting system.

This European Standard specifies general safety requirements for the design, testing and production of drawwork hoisting systems. The requirements may be applicable for on- and off-shore applications of such machinery in the petroleum and natural gas industries.

This document deals with significant hazards, hazardous situations and events, as listed in the standard’s proposed Clause 4, that are relevant to drawwork type hoisting systems when used as intended and under the conditions of misuse foreseeable by the manufacturer.

The standard covers:

-drawwork hoisting systems down to and including the link hanger/link adaptor,

-drawwork hoisting systems including the top drive main shaft including any IBOPs down to the saver sub connection when utilized as a 2ifting device e.g., the drillstring during drilling.

Purpose

Purpose is to issue a type “C” document related to the safety related to the use of a drawwork based hoisting system for drilling and maintenance of hydrocarbon wells, on and offshore.

The document shall be based on the Machinery Directive and the principles of EHSR. CEN/TC 12 has established an ad-hoc group in 2017 to contribute to feasible work programme by:

1) identifying and prioritising Type C safety standards including justification of applied risk assessment, and

2) developing a harmonised standard on drawwork type hoisting systems At the CEN/TC 12 meeting in 2019, it was agreed to add a project on drawwork hoisting systems to its work programme. The proposed standard is considered of added value for the sector. In addition, by formalising the project, the standard will also be assessed by the HAS consultant for machinery, which will ensure that the document will meet the European Commission’s requirements.

Note: The NWIP is also based on relevant API and IEC standards. Reference is made to the outline document standard “2023_11_28 Drawwork hoisting systems”.