BR9912920A - Processo para proporcionar flutuabilidade para uma coluna montante marìtima, e, coluna montante marìtima com flutuabilidade variável - Google Patents

Processo para proporcionar flutuabilidade para uma coluna montante marìtima, e, coluna montante marìtima com flutuabilidade variável

Info

Publication number
BR9912920A
BR9912920A BR9912920-5A BR9912920A BR9912920A BR 9912920 A BR9912920 A BR 9912920A BR 9912920 A BR9912920 A BR 9912920A BR 9912920 A BR9912920 A BR 9912920A
Authority
BR
Brazil
Prior art keywords
buoyancy
column
marine
upstream column
variable
Prior art date
Application number
BR9912920-5A
Other languages
English (en)
Inventor
Forrest Earl Ii Shanks
Original Assignee
Mobil Oil Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of BR9912920A publication Critical patent/BR9912920A/pt

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/01—Risers
    • E21B17/012—Risers with buoyancy elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Revetment (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Abstract

"PROCESSO PARA PROPORCIONAR FLUTUABILIDADE PARA UMA COLUNA MONTANTE MARìTIMA, E, COLUNA MONTANTE MARìTIMA COM FLUTUABILIDADE VARIáVEL". Uma coluna montante marítima de flutuabilidade variável (10) e um processo de assegurar e regular a flutuabilidade para uma coluna montante deste tipo. A coluna montante (10) é constituída de um conduto montante principal (11) sobre o qual uma pluralidade de latas (20) é afixada. Uma massa semifluida de material particulado flutuante (31), por exemplo, pequenas esferas ocas (30), é bombeada para o interior das altas para deslocar a água do mar do seu interior e conferir flutuabilidade à coluna montante. Quando é desejado reduzir a flutuabilidade da coluna montante, as esferas (30) são removidas meramente abrindo as latas (20) e permitir que a água do mar circundante desloque as esferas das latas (20).
BR9912920-5A 1998-08-11 1999-07-30 Processo para proporcionar flutuabilidade para uma coluna montante marìtima, e, coluna montante marìtima com flutuabilidade variável BR9912920A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/132,641 US6004074A (en) 1998-08-11 1998-08-11 Marine riser having variable buoyancy
PCT/US1999/017429 WO2000009817A1 (en) 1998-08-11 1999-07-30 Marine riser having variable buoyancy

Publications (1)

Publication Number Publication Date
BR9912920A true BR9912920A (pt) 2001-06-05

Family

ID=22454945

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9912920-5A BR9912920A (pt) 1998-08-11 1999-07-30 Processo para proporcionar flutuabilidade para uma coluna montante marìtima, e, coluna montante marìtima com flutuabilidade variável

Country Status (9)

Country Link
US (1) US6004074A (pt)
EP (1) EP1105581B1 (pt)
AR (1) AR021189A1 (pt)
AU (1) AU751317B2 (pt)
BR (1) BR9912920A (pt)
CA (1) CA2339964C (pt)
NO (1) NO20010649L (pt)
PE (1) PE20000973A1 (pt)
WO (1) WO2000009817A1 (pt)

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US8540029B2 (en) * 2009-01-09 2013-09-24 The Subsea Company System and apparatus for drilling riser conduit clamp
US8443896B2 (en) 2009-06-04 2013-05-21 Diamond Offshore Drilling, Inc. Riser floatation with anti-vibration strakes
US20110091284A1 (en) * 2009-10-19 2011-04-21 My Technologies, L.L.C. Rigid Hull Gas-Can Buoys Variable Buoyancy
CA2798094C (en) 2010-05-04 2018-08-14 Oxus Recovery Solutions Inc. Submerged hydrocarbon recovery apparatus
CN101975030B (zh) * 2010-08-05 2013-11-13 中国石油大学(华东) 深水顶部张紧隔水管保温与浮力提供两用装置
US9038730B2 (en) * 2011-03-31 2015-05-26 Deep Down, Inc. Marine riser adjustable buoyancy modules
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WO2013090976A1 (en) * 2011-12-23 2013-06-27 Nautilus Minerals Pacific Pty Ltd A disconnectable method and system for seafloor mining
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Also Published As

Publication number Publication date
EP1105581B1 (en) 2003-09-10
US6004074A (en) 1999-12-21
NO20010649D0 (no) 2001-02-07
PE20000973A1 (es) 2000-09-29
AU5136599A (en) 2000-03-06
CA2339964C (en) 2006-12-19
CA2339964A1 (en) 2000-02-24
EP1105581A4 (en) 2002-05-29
AR021189A1 (es) 2002-07-03
WO2000009817A1 (en) 2000-02-24
AU751317B2 (en) 2002-08-15
NO20010649L (no) 2001-02-07
EP1105581A1 (en) 2001-06-13

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Legal Events

Date Code Title Description
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 30/07/1999, OBSERVADAS AS CONDICOES LEGAIS.

B24C Patent annual fee: request for for restoration

Free format text: REFERENTE 11A E 12A ANUIDADE(S).

B24G Patent annual fee: republication

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 2135 DE 06/12/2011. TEXTO CORRETO: REFERENTE A 12A ANUIDADE.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: EXTINGUE-SE A PATENTE EM VIRTUDE DO DISPOSTO NO ART. 78, INCISO IV, DA LPI 9.279, REFERENTE AO DESPACHO PUBLICADO NA RPI 2139 DE 03/01/2012 E AO NAO RECOLHIMENTO DA 13A ANUIDADE.