Glossary
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Multiwall/manifold Template
Definition(s)
Multiwall/manifold template or drilling and production template
A multiwell/manifold template (also often referred to as a drilling and production template) is a template with multiple wells drilled and completed through it, and incorporating a manifold system for gathering of produced fluids and/or distribution of injected fluids, as well as a production riser support is illustrated in Figure A.22. This type of template also includes connection point(s) for tie-in of flowlines or production risers to/from the manifold to the host facility. Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global StandardsTemplate
Definition(s)
Template
It should be noted that the term “template” is also often used to refer to the combined unit, i.e. the template protective structure and the manifold. Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global StandardsTemplate
A template is a seabed-founded structure that consists of a structural framework and a foundation (driven/suction piles or gravity-based), arranged so as to provide support for various subsea equipment such as: subsea wellheads and trees, piping manifolds (for production, injection, well testing and/or chemical distribution systems), control system components, e.g. SCMs, hydraulic piping, electrical cabling, drilling and completion equipment, pipeline pull-in and connection equipment, production risers. A template also often incorporates protective framing and/or covers to protect subsea equipment from impact damage from dropped objects and/or fishing equipment. Depending on the functions templates are designed to serve, they can range in complexity from simple spacer templates to multiwell manifold templates, as defined below, and actual templates may combine features of more than one of these types. It should be noted that the term “template” is also often used to refer to the combined unit, i.e. the template protective structure and the manifold. Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global StandardsTemplate
Procedural guide consisting of equations, test methods and measurements for establishing design performance properties. Source: API TR 5C3, Technical Report on Equations and Calculations for Casing, Tubing, and Line Pipe Used as Casing or Tubing; and Performance Properties Tables for Casing and Tubing, Upstream Segment, First Edition, December 2008. Global StandardsSubsea Tree System
Definition(s)
Subsea tree system
The equipment required to complete a subsea well for production or injection purposes includes a tubing hanger and a tree, often referred to in combination as the “subsea tree system”. Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global StandardsAccidental Load
Definition(s)
Accidental Load
Load caused by accidental occurrence. Source: API RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. Global Standards Source: API SPEC 17L1, Specification for Flexible Pipe Ancillary Equipment, First Edition, March 2013. Global StandardsAccidental Load
Load(s) which are imposed on the C/WO riser system under abnormal and unplanned conditions.- EXAMPLES Loss of vessel station-keeping and heave compensator lock-up.