... asphaltene remediation scale inhibition produced water discharge hydrate remediation remediation of hydrates hydrate inhibition asphaltene inhibition temperature gradient flow directional valve qualification rig pig diverter test period seal ring scale remediation production chemistry upstream...

... of the pipe/valve centerline; 3. The seat and seal cone centerlines are inclined in respect to the pipe/valve centerline. Figure 3 Triple Offset Design On these premises, the seal ring (and not the disc itself, as is in the case of other butterfly valve designs) is the critical component as it represents...

... for wet-insulated pipelines are adversely affected by temperature cycles from seabed temperatures to only 200 °F (93 °C). Further, this reference demonstrates how to develop diecast graphite packer seal rings that are not affected by thermal changes. Thus, the approach to HPHT sealing systems for 15 ksi...

... test result cylinder coupon test result seal ring graphite upstream oil & gas coupon test seal system OTC 23143 The Effects of Thermal Cycling on Offshore Pipeline/Flowline Repair Tool Seal Systems Ray R. Ayers, PhD, PE, Jack E. Miller, PE, Eric Gage, and Justin Hebert, Stress...

... an ultrasonic technique, developedto measure contact pressures at the metal-to metal interface of the end fittingbarrier seal. Two tests have been performed using a full-scale end fittingassembly and the contact pressure measured using three different ultrasonicprobes, during the swaging of the seal ring...

... seal ring Copyright 2003, Offshore Technology Conference This paper was prepared for presentation at the 2003 Offshore Technology Conference held in Houston, Texas, U.S.A., 5 8 May 2003. This paper was selected for presentation by an OTC Program Committee following review of information contained...

... out can conveniently ba achiaved during oparation. In order to ensure that the seal is maintained, nuts, waahers and seal rings are ranewed for evary make-up. References and dluatratlons at end of paper. 53 2 FLANGED COUPLING DESIGN FOR THE SNORRE TLP RISERS OTC 6880 The flange scale ageinat...

... stresses, to cause carbon and stainless steels to crack in the chloride - H2S environment. ACCEPTANCE TEST For final evaluation of materials for the high deformation seals, seal rings of carbon steel and UNS-N04400 were machined to the dimensions shown in Figure 6. The carbon steel ring was Xylan* coated...

..., a seal ring and an energising ring. The seal ring is cylindrical with its lower cross section forming a "U." The energising ring is also cylindrical and intercon- nects with the "U" portion of the seal ring. The seal ring is run into the annulus between the HP housing and the casing hanger and landed out...