API SPEC 16R PDF

Status: Alert Withdrawn.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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Examples of primary stress are the membrane stress in a rod loaded by an axial force and the bending stress in a simple beam.

Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Riser pipe outer diameter and wall thickness or wall thickness range for which the coupling is designed shall be documented.

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This information shall be acquired by? This factor is used to account for the increase in the stresses caused by geometric stress ampli?

API Product Specification

All materials used shall conform to a written speci? Customize your page view by dragging and repositioning the boxes below.

Coupling makeup including when applicable, detailed procedures for correctly applying coupling preload. If your institution uses Shibboleth authentication, spi contact your site administrator to receive your user name and password.

To assure validity of the test results, the testing machine must be zpi If SAF varies with load or preload, document this variation. Measured preload stresses shall meet or exceed the minimum required preload stresses over at least ten successive makeup sequences.

Log sheets for recording cumulative use of each riser coupling. Visual examinations of castings and forgings shall be performed in accordance with the manufacturer’s written speci? If the coupling has axial planes of symmetry planes which include the pipe axisthe three-dimensional analysis spi be based on a single sector bounded by two such planes. Related Content Customize your page view by dragging and repositioning the boxes below.

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Results of tests performed in accordance with 4. Sepc chemical composition shall be in accordance with the manufacturer’s written speci? Please note that extra delivery cost and delivery time may apply for products ordered as hardcopy, as the products must first be shipped from our suppliers overseas.

Appendixes A, B, and C provide analysis, testing, and design, information. All pressure containing welds shall have complete joint penetration.

DesignCouplingsMarine drilling risers. The moment new editions of the standards you monitor are released, changes are made, or appendixes aip published, you will be alerted by email.

For assistance or to subscribe, please contact us:. The weight of a riser coupling zpec include the sum of the in-air weights of the structural components of the coupling, the lock mechanisms, and the brackets or clamps that support the end extremities of auxiliary and choke and kill lines.

For those couplings with a non-linear relationship between load and stress, linear interpolations or extrapolations cannot be used. No relevant indication with a major dimension equal to or greater than 3?

API Spec 16R (R)

To qualify for sprc particular rated load, neither calculated nor 16rr stresses in a coupling shall exceed the allowable stress limits of the coupling material when subjected to the rated load. Some stresses will be affected by the structural properties of the riser pipe. For assistance or to subscribe, please contact us: Performance and Mechanical Equipment Standards.

Both X-ray and gamma ray radiation sources are acceptable 166r the inherent thickness range limitation of each. For example, when the general primary membrane stress is being checked only general primary membrane stresses are included in Equation 2; secondary stresses, bending stress and local primary membrane stresses are not included. This situation presents a real challenge for the design of the drilling riser which depends to a large extent on these parameters, as well as other related to operational and environmental conditions.

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For example, a coupling having six planes of symmetry would require analysis of a degree sector one-twelfth. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director. For load-carrying bolts in bolted-?

Dependability Engineering in System Design and Realization. Equal to the local sprc alternating stress in a component including welds divided by the nominal alternating stress in the pipe wall at the location of the component.

This stress is necessary only to insure the coupling has continuity of deformations at the discontinuity; thus, it is a secondary stress. 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. spef

API Spec 16R (R2010)

This is graphically shown in Figure C Acceptance criteria for pressure contact metal-to-metal sealing surfaces speci? Local peak stresses are not considered for static loading, but are of primary concern for evaluating fatigue life as discussed in 4. Examples of these lines include a control system? This specification relates directly to API 16Q, which covers the design, selection, and operation of the marine drilling riser system as a whole.

A primary stress is one that apk induced by the external loads or preload and is necessary to satisfy the laws of static equilibrium. The hardness of sprc QTC shall meet the manufacturer’s written speci?

These standards are slec intended to obviate the need for applying sound engineering judgment regarding when and where these standards should be utilized.

The female coupling member. Design Couplings Marine drilling risers. The manufacturer shall document those loads induced by choke, kill, and auxiliary lines for which the coupling has been designed. By continuing to use our website, you are agreeing to our privacy policy.

The coupling rated load must sped determined from these curves.