Status: Alert Withdrawn. Norwegian title: Marine Drilling Riser Couplings. English title: Marine Drilling Riser Couplings. Item type: Standard (Kun elektronisk). Tensile test, performed in accordance with the API Spec. 16R standard, is used to verify whether the design of key load bearing parts of the marine riser, such as. As recommended by API Spec 16R, the stress linearization and classification in one of the key steps to design a riser connector. The designers are encountering .

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Select the rated load from 4. Division I, Appendix 1 are permitted. The allowable material stresses are established in 4. For load-carrying bolts in bolted-? Graphic chronological schedule of routine maintenance tasks.

Note that all stresses are not included when calculating every von Mises effective stress. Sign into or create your free personal account Sign in via Shibboleth What is Shibboleth? The hardness of the QTC shall meet the manufacturer’s written 166r The coupling weight includes the in-air weight of any and all parts that contribute to the submerged, in-service weight of the coupling. Subscription – always available and updated A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition.


API Spec 16R (R2010)

The load on the coupling is axial tension. Test coupons shall be cut from a separate or attached block, taken from the same heat, and when applicable, formed similarly and given the same heat treatment as the product material they represent. Performance and Mechanical Equipment Standards.

The determination of a riser’s response to the environmental loading and determination of the mechanical loads acting upon and developed within the riser require specialized computer modeling and analysis. An example of a bearing stress is the contact stress between the dogs and the loading shoulder of a dog coupling.

When L is less than D, consider as a plate of T thickness. Hardness testing shall be performed in accordance with procedures speci? Surfaces of ground out area for repair welds shall be examined prior to welding to ensure defect removal to the acceptance criteria of fabrication welds 7. An example of a peak stress is the high localized stress at the root of a thread in a bolt.

Hardware and software used to perform the analysis. For this reason, it is required that the stresses in each coupling be calculated with a? This publication will no longer be in effect?

API Spec 16R (R)

The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email. Additionally, the sec may provide support for choke, kill and auxiliary lines, and load reaction for buoyancy devices. If not possible, then an iterative method involving several solutions shall be required.


No manipulation of the? Metal impression stamp shall be used in low stressed area on both box and pin ends.

Suggestions for the analysis can be found in Appendix A. The rated load or rated working pressure of the coupling may be greater than that of an assembled riser joint.

A section of riser pipe having ends? Use of the handling tool and its interface with the coupling. Acceptance criteria for these bolt stresses shall be based on recognized codes and standards. Some coupling designs can tolerate large permanent deformations without jeopardizing their ability to safely function, while other coupling designs will not function after large permanent deformations.

Riser coupling box and pin protectors. A short presentation of a breech-block type riser connector, on which the methodology has been applied, is given at the beginning of this paper.