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Base flange elevation

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Proceedings Papers

Paper presented at the Underwater Technology International: Remote Intervention, April 8–10, 1997
Paper Number: SUT-UTI-97-187
... for a remote standard flange separation and connect~on has been developed and is illustrated in this paper The tool has the versat~l~ty o be used on any standard flange system and can therefore be util~sed on jolnts previously Installed by divers The baslc philosophy of the system includes full ROV based...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 23–25, 2011
Paper Number: OMC-2011-028
... is mandatory, mainly in the case of use of tie in flanges, to minimize the bending moments at flange faces gravity base structure massimo montesi spool pipeline luca mancini flexibility platform luca marconi pipeline tie-in settlement export pipeline sealine saipem energy service midstream...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08383
... system has been developed to overcome problems encountered with standard instrumentation. New approaches to EPR measurements are recommended based on the new mobile setup. A comprehensive interpretation of the experimental results is given taking into account the C and Mo contents as well...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 22–24, 2014
Paper Number: SNAME-SMC-2014-P34
... of pipe flanges is the use non-conducting gasket material and The mechanism of weld decay is that the HAZ of the weld proper bolting up procedure. becomes anodic to the base material as a result of a change in the microstructure due to improper heat treatment. In this case it Case Example 2: 5000 Series...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 28–30, 2007
Paper Number: OMC-2007-012
..." is the process pipe and the 36" steel outer casing constituted the protection system; the process pipe inside the outer casing is free to move in order to avoid overstress on the spool / riser stub flange container spool protection system casing design flange base structure installation...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07541
... to meet final bolt- up requirements. FRP flange faces are generally thicker than metal flange faces for comparable pressures. Also, FRP flange faces have a tendency to draw back because of resin shrinkage during cure. Fabrication specifications for flange face draw back, based on bolt circle dimensions...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1988
Paper Number: OTC-5653-MS
... plastic analysis methods to generate the factor of safety against overall collapse under thejacking loads. A factor of safety against collapse of 1.8 was demonstrated based on the steel tubular section acting with the benefit of wrap plates, but without consideration of composite action of the internal...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-676
... three-hour fluctuating gust wind speed time history is simulated based on the ESDU horizontal wind speed spectra. The standard deviation u of the wind speed at elevation z is defined as 0 *ln156.01 0 ln09.0538.05.7 * fz u p z z uu (4) The Coriolis parameter f is assumed...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1995
Paper Number: OTC-7847-MS
... space frame fabricated from wide flange, rolled tubular sections, and flat plate. The structure is 167 feet long, 86 feet wide, and 20 feet high over the area covered by the 24 well slots. The elevation rises to 30 feet at the riser base end of the template. The structure is secured to the sea floor...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1988
Paper Number: OTC-5652-MS
... drastically reduce the amount of offshore work after jacking by not having to change out bracing. Comparing the platforms without and with jacking equipment installed showed 20 - 3X6 and 27 - 50% increase in base shear and overturning moment respectively for the 3 year condition. LEG CUTTING, FLANGE...
Proceedings Papers

Paper presented at the Corrosion97, March 9–14, 1997
Paper Number: NACE-97534
... configuration with silicon based polymer gel encapsulation Significant salt build up between waveguide flanges and slight corrosion of aluminum waveguide interior flange surface 534/9 TABLE 2 VISUAL CONDITION OF WAVEGUIDE SECTION ASSEMBLIES COMPLETION OF ELEVATED TEMPERATURE+ PHD NSWC MARINE EXPOSURE TEST RACK...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30600-MS
... conference Austin Bryan , Elizabeth Smith , and Kevin Mitchell 2013 . Performance-based Fire and Gas Systems Engineering Handbook. Columbus, Ohio . Kenexis Consulting Corporation Daniel A. Crowl and Joeseph F. Louvar 2011 . Chemical Process Safety...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1988
Paper Number: OTC-5626-MS
...) centrifuges o 29,000 cu ft. of bulk barite and cement storage capacity o Dedicated 8,500 bbl storage and transfer system for base oil 100 RISER TENSIONING AND RISER DISCONNECT MANAGEMENT SYSTEM-- The ZANE BARNES Tensioning System is designed for drilling operations in 4000 ft. of water with mud weights of 16...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12796
... to be eliminated as a long-term failure mode in PE liners. There appears to be support for the use of polyethylene-based liners at elevated temperature over 600C (up to 900C reported for PE lined systems in some cases). However, the higher temperature applications lack verifiable and complete operating data...
Proceedings Papers

Paper presented at the CORROSION 2020, June 14–18, 2020
Paper Number: NACE-2020-14919
... designed, but being largely metallic they allow charges to conduct between flanges in the bolted joint. Non-metallic gaskets such as those based on phenolic and glass reinforced epoxy (GRE) have been used since the 1930s, but have some downsides. Especially their reliance on the non-metallic material...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 13–16, 2017
Paper Number: SPE-188307-MS
... same case histories. The world of Asset Integrity Management has advanced over the few decades to a great deal. Inspection has progressed from being time based to condition based then to being Risk Based. ADGAS Asset Integrity Management has passed through all these developments. For instance...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-387
... the accuracy of FE computation was verified. Then, TTT was implemented based on the established FE model, in which additional heat source moving with welding arc was applied to the flange plate. When the heating magnitude of additional heat source was fixed, its locations (d1 : offset from welding arc...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 20–23, 2018
Paper Number: OTC-28393-MS
... in the base material of the flowline flange, a phenomenon known as sigma phase embrittlement. This can occur due to incorrect heat treatment processes during the manufacturing stage of duplex stainless steel components or due to incorrect welding processes. For the specific example reported in this paper...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 13–16, 2017
Paper Number: SPE-188302-MS
.... Therefore, as a recommendation, it is important to upgrade the flange gasket sealing surfaces using an alloy that has a higher CCT, such as Hastelloy C-276 or Incoloy 686 material. Traditionally, material selection process for equipment during design phase was based on general and pitting corrosion...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25758-MS
... inclusive of the subsea wellhead, hydraulic connector and API flange has been completed. The weak points in the analyzed system were identified based on several proposed failure criteria methods. The sensitivity of the wellhead system to lower bound and upper bound soil conditions were presented...

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