HAZOPs for Offshore Drilling Activities

Exploration, production and intervention drilling are operations representing major accident hazards. Wrong decisions, missing contingency plans or equipment failure may cause loss of well control. Conducting drilling HAZOPS is a useful and flexible way of identifying and assessing hazards related to drilling activities.

ORS uses a drilling HAZOP method for performing a detailed risk evaluation of drilling operations. The intention with the risk assessment is to identify hazards that could occur during the drilling operation, assess the severity and probability for each hazard and finally establish a basis for development of contingency procedures and safeguards.

The drilling HAZOP method applied by ORS is based on the analysis of the entire drilling operation in a multidisciplinary workshop with all involved parties. Normally, the participants include drilling engineers, mud operators, geologists, logistics, drilling fluids specialist, toolpusher, superintendent, rig manager etc.

During the HAZOP, the drilling operation is divided into sections, where each section typically includes drilling, circulation and running of conductor/casing and cementing. Evaluation of the interfaces among rig systems and drilling systems are done in a thorough manner. For each section, customized drilling guidewords are used to ensure a consistent review for the entire system, and to uncover potential hazards. In addition predefined drilling hazards/accidental scenarios are evaluated in order to examine the consequence and the contingency plans.

Contact our specialists to discuss how your organization can benefit from performing drilling HAZOPs for Drilling Operations.