About

Each database has a hierarchic structure for learning at different levels. The knowledge at the most detailed level is presented as datasheets. All datasheets within a subject have the same configuration to ease comparison of more datasheets. Required information can be achieved by following the predefined hierarchic structure or by searches. Only basic knowledge is described. The user will not become an expert by reading the database content, but gain improved understanding of the subjects described and thus being able to ask more relevant questions to the experts.

Databases

What is a database

A database is a collection of datasheets within a specific topic.

Types

The following databases are available:

	Failure mechanisms A failure mechanism as described in this database is a detailed description of a technical failure mode. Most failure mechanisms are physical degradation of components due to operational conditions combined with component features like design, materials and surface treatments. Other failure mechanisms are non-destructive.
	Materials Materials are the building blocks for technology components. This database has emphasis on metal alloys and polymer compounds used for well technology. Emphasis is put on material ‘problems’ helping people to find good material candidates from a safety and reliability point of view.
	Surface treatments Surface treatments are used to improve the surface of a manufactured item. Reasons may be to improve corrosion protection, wear resistance and friction control. Surface treatments typically are removing material, adding material or chemically altering the surface.
	Operational conditions Operational conditions include environmental conditions and physical loads as experienced by the equipment during all life cycle phases. Functional failures with or without failure mechanisms can only be predicted and prevented if the operational conditions are known and understood prior to the design phase.
	Worst case scenarios Worst case scenarios are events where the equipment is exposed to severe operational conditions. ExproBase describes worst case scenarios related to the completion and the drilling processes. Worst case scenarios and not the single or individual operational loads are normally dimensional for well equipment.
	Human errors Human errors are incorrect performance of human actions. Humans are not made to do the right decisions in every case. Human errors can be divided into unintended- and intended human errors.
	Performance influencing factors Performance influencing factors (PIF’s) affects the human performance and thus humans ability to perform actions correct and efficient. Performance influencing factors can be divided into workplace related factors and human related factors.
	Well operations This database describes a coarse procedure for drilling, running completion and running Xmas tree for a subsea well with vertical Xmas tree to better understand risk management and well integrity issues during these operations.
	Well equipment This database describes specific well components related to casing, completion string, wellhead and Xmas tree to better understand how they work and typical problems related to these components.

The databases can be used as support for guidelines, but can also be used as stand-alone references for everyday use.

Updated: 19.08.2010

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