Status: Alert Withdrawn.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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The latest edition of these standards shall be used unless otherwise noted. Monitoring Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed.

The female coupling member. NOK 1 ,00 excl. The API specification 16R requirements regarding the design criteria are then discussed.

Therefore, the analyst must predict where high stresses are likely to occur. The male coupling member. In addition, the following steps are required. Under the rated working load, no average section stress in the riser coupling shall exceed allowable limits established in this speci? Some stresses will be affected by the structural properties of the riser pipe.

Storage instructions and replacement schedule for rubber goods and other consumables. The chemical composition shall be in accordance with the manufacturer’s written speci? The s;ec shall document the rated internal working pressure for each coupling design. Normally, riser couplings exhibit a linear or bilinear relationship between load and stress. API standards are published to facilitate the broad availability of proven, sound engineering and operating practices. Procedure and schedule for fatigue crack inspections.


All makeup and preload tools. Using this relationship, the calculated riser pipe stress at the middle of the pipe wall caused by pure bending is treated the same as that caused by pure tension. This service is not available if you are a URL user where you do not log in with an email address. Log sheets for recording cumulative use of each riser coupling.

For example, highly stressed regions of the structure require a? All stresses can be classi? No more than ten relevant indications in any continuous 6square inch area.

Information concerning safety and health risks and proper precautions with respect to particular materials and conditions should be obtained from the employer, the manufacturer or supplier of that material, or the material safety data sheet.

Auxiliary loads as de? It is important to note that the SAF value depends largely on the exhaustiveness of the?

API Product Specification

The 1r6 pipe from which riser joints are fabricated. Spi stresses, pure shear stresses, and bearing stresses are compared directly with their respective allowables. All materials used shall conform to a written speci? If preload stresses are considered as secondary, the designer must demonstrate that the permanent deformations induced by preload will not cause the coupling to lose any necessary functional capability.

Cyclic testing to failure yields a data point to aid in predicting fatigue life.

Only those indications with major dimensions greater than 1? This document was produced under API standardization procedures that ensure appropriate noti? Manufacturer documented traceability requirements shall include provisions for maintenance or replacement of identi?


API Spec 16R (R)

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. If zpec membrane stress is averaged apii over a localized portion of a cross-section, it is a local membrane stress. Average for three specimens: This site uses cookies. The coupling design load shall be applied to verify any assumption made in the analysis regarding separation. A section of riser pipe having ends? Interactive Graphics Video Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature Use interactive graphics and apo to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal.

Four or more relevant indications in a line separated by less than 1? As recommended by API Spec 16R, the stress linearization and classification in one of the key steps to design a riser connector. The coupling design load can be speci? Appendixes A, B, and C provide analysis, testing, and design, information.

Shibboleth is an access management service that provides single sign-on protected resources. If not possible, then an iterative method involving several solutions shall be required.

Results of tests performed in accordance with 4.