Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent
1998-02-13
1999-12-14
Kashnikow, Andres
Pipes and tubular conduits
Distinct layers
With intermediate insulation layer
138155, 138178, F16L 922
Patent
active
06000438&
ABSTRACT:
A subsea flowline or pipeline with passive insulation having improved transient heat-loss characteristics. The flowline or pipeline has a phase change material insulating the flowline pipe joints and/or pipe sections to greatly extend the cooldown time of produced or processed hydrocarbon fluid mixtures being transported therethrough during shut-in conditions. The phase change material surrounds a carrier pipe of the flowline or pipeline. The phase change material may be either dispersed or encapsulated within standard insulation. Additional insulation and/or a jacket pipe surrounds the phase change material and holds it against the carrier pipe. The phase change material can be of a micro-encapsulated or bulk-encapsulated type.
REFERENCES:
patent: Re23545 (1952-09-01), Bond
patent: 2963045 (1960-12-01), Canevari et al.
patent: 3151633 (1964-10-01), Shuman
patent: 3480493 (1969-11-01), Bauer et al.
patent: 3543804 (1970-12-01), Ziegler
patent: 3626987 (1971-12-01), Bittner
patent: 4000760 (1977-01-01), Heller, Jr. et al.
patent: 4028785 (1977-06-01), Jackson et al.
patent: 4104171 (1978-08-01), Stechmeyer
patent: 4162093 (1979-07-01), Sigmund
patent: 4287245 (1981-09-01), Kikuchi
patent: 4294078 (1981-10-01), MacCracken
patent: 4346739 (1982-08-01), Asada
patent: 4348243 (1982-09-01), Craubner
patent: 4367768 (1983-01-01), Schulke
patent: 4403645 (1983-09-01), MacCracken
patent: 4421661 (1983-12-01), Claar et al.
patent: 4512388 (1985-04-01), Claar et al.
patent: 4606378 (1986-08-01), Meyer
patent: 4798769 (1989-01-01), Hayashi et al.
patent: 4824705 (1989-04-01), Persson et al.
patent: 4995427 (1991-02-01), Berchem
patent: 5307842 (1994-05-01), Lequeux
patent: 5380571 (1995-01-01), Ozawa et al.
patent: 5390705 (1995-02-01), Brunnhofer
patent: 5458441 (1995-10-01), Barry
patent: 5476343 (1995-12-01), Sumner
patent: 5525155 (1996-06-01), Allen
patent: 5654060 (1997-08-01), Holman et al.
Excerpt from an internal, proprietary, McDermott Technology, Inc. Report dated Jul. 24, 1997 comprising an Appendix of Vendor Supplied Information provided via personal communications to inventor Ohrn from Frisby Technologies and UDRI-Phase Change Laboratories, pp. 16-63.
Edwards R. J.
Hook James F.
Kashnikow Andres
Marich Eric
McDermott Technology Inc.
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