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Proceedings Papers

Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-350
... ABSTRACT In an ongoing Joint Industry Project, DNV Classification Note 30.5: Environmental Conditions and Environmental Loads is being updated in accordance with the present state-of-the-art and corresponding industry needs and at the same time converted into a DNV Recommended Practice DNV-RP...
Proceedings Papers

Paper presented at the The Fourteenth International Offshore and Polar Engineering Conference, May 23–28, 2004
Paper Number: ISOPE-I-04-011
... The New DNV Recommended Practice (DNV-RP-H102) for Marine Operations During the Removal of Decommissioned Offshore Platforms Alvær, Per Øystein, Det Norske Veritas, Oslo, Norway ABSTRACT A new Recommended Practice (RP) document has been prepared and will be issued by Det Norske Veritas (DNV...
Proceedings Papers

Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-134
... ABSTRACT In late 1996, DNV issued a revision of the "DNV Rules for Submarine Pipeline Systems" (DNV'96). This constituted a complete revision of the previous version of the Rules from 1981. The major change in the Rules was the introduction of the limit state format, in form of a calibrated...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28727-MS
... stability assessment of pipelines plays a vital role in cost effective pipeline design and ensures the long-term integrity pipelines. The recommended guideline DNV RP F109, "On-bottom stability of assessment of submarine pipelines" and American Gas Association/Pipeline Research Council International (AGA...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10974
... approaches that avoid equipment being exposed to stresses or strains exceeding the nominal thresholds for HISC. This approach is captured by DNV Recommended Practice F112: 2008 (DNV RP F112: 2008). Full scale test validation of this approach is limited. A comprehensive test program is described quantifying...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-278
... using a wakeoscillator to predict the vibration of multi-span pipelines in which proper support conditions (between spans) are considered. The DNV-RP-F105 code is commonly used in the design of pipelines. This code predicts the maximum VIV amplitude based on structural and hydrodynamical properties...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-414
... Abstract Guidance on corrosion protection is currently being provided in DNV GL Guideline for the Certification of Offshore Wind Turbines, Edition 2012, DNV-OS-J101, or DNV-RP-B401. This guidance is updated and summarized in the upcoming DNV GL Recommended Practice on Corrosion Protection...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 25–27, 2015
Paper Number: OMC-2015-451
... Abstract The increasing need for energy and supply security is leading to pipeline developments in areas with increasingly challenging seabed features and greater water depth. The DNV FloatPipe concept proposes to modify the basic premise that pipelines must be placed on the seabed. Instead...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-020
..., such as Bureau Veritas, Lloyds, ABS, or Det Norske Veritas (DNV) design standards. This paper presents a review of the design, development, and implementation of an offshore skid per DNV regulations. A finite element approach of design was adopted to meet DNV requirements. Design implementation efforts...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25092-MS
... Abstract This paper presents a process employed to qualify new technology in unbonded flexible pipe in accordance with API Specification 17J, API Recommended Practice 17B, DNV-OS-C501 and DNV-RP-A203. The relevance of each standard in qualifying new pipe layers, pipe structures, and end...
Proceedings Papers

Paper presented at the SNAME 18th Offshore Symposium, February 7, 2013
Paper Number: SNAME-TOS-2013-007
... ABSTRACT This paper presents the results of three failure investigations carried out by DNV Maritime Technical Advisory. The first case is the failure of an oil distribution shaft in the main propulsion shafting for on oil tanker. The second case is the failure of an azimuth thruster...
Proceedings Papers

Paper presented at the Offshore Site Investigation and Geotechnics: Integrated Technologies - Present and Future, September 12–14, 2012
Paper Number: SUT-OSIG-12-58
... Petroleum Institute (API, 1993, 2000) and (DNV, 1992, 2008, 2011). 2. Methodology API and DNV codes describe slightly different ap- proaches to assess the axial bearing capacity of a pile. These codes provide guidance for the calcula- tion of pile length in common soil conditions, such as clay (cohesive...
Proceedings Papers

Paper presented at the SNAME 13th Propeller and Shafting Symposium, September 11–12, 2012
Paper Number: SNAME-PSS-2012-008
... This paper presents the results of two failure investigations carried out by DNV Maritime Technical Advisory. The first case is the failure of an oil distribution shaft in the main propulsions shafting for on oil tanker. The second case is the fracture on a high speed intermediate shaft...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-084
... ABSTRACT: In this paper the accuracy of DNV-OS-F101 Appendix A has been investigated and discussed. The crack driving force (CDF) for 4 different flaw sizes in a OD 277 × WT 15.5 mm pipe subjected to bending into the plastic regime have been investigated by 3D FE analyses. The same flaw sizes...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21575-MS
... revision of the Hotpipe Guideline was issued and in 2007 this was published as a recommended practice DNV-RP-F110. In 2002 another initiative was launched with the Safebuck Joint Industry Project to carry out research and develop global buckling criteria for exposed pipelines. This work was intended...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06102
... failure modes associated with hydrogen absorption induced by cathodic protection can be reduced, especially if CP can be provided from anodes located on adjacent structures. The development of DNV recommended practices for cathodic protection is described in detail, with reference to significant changes...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 19–21, 2005
Paper Number: SNAME-SMC-2005-D26
... and Classing High Speed Naval Craft (ABS HSNC) and the DNV Rules for Classification of High Speed, Light Craft and Naval Surface Craft, (DNV HSLC&NSC) the hull girder, slamming and vehicle deck loads required for the design of a US Navy High Speed craft/combatant are reviewed herein. Materials...
Proceedings Papers

Paper presented at the The Eleventh International Offshore and Polar Engineering Conference, June 17–22, 2001
Paper Number: ISOPE-I-01-139
... ABSTRACT The DNV Recommended Practice for the assessment of corroded pipelines, DNV-RP-F101 was issued in 1999, and has been used with success in many projects. In this paper the development of the RP is outlined, the determination of the safety factors are explained and the sensitivity...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2001
Paper Number: OTC-13111-MS
.... The abstract must contain conspicuous acknowledgment of where and by whom the paper was presented. Abstract The paper gives an introduction to the acceptance criteria and design procedures in the new DNV Offshore Standard OS F201 for Dynamic Risers. The design format adopted is based on a modern limit state...
Proceedings Papers

Paper presented at the The Tenth International Offshore and Polar Engineering Conference, May 28–June 2, 2000
Paper Number: ISOPE-I-00-139
... several assessment methods are available, but there is a need to evaluate these methods against test results. DNV performed 14 tests on dented pipes between 1979–1981, sponsored by several oil and gas companies. The tests included pure dents, the combination of dent and notch, and also the effect...

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