IE831983L - Lowering the free end of a pipe line to a sea bed - Google Patents

Lowering the free end of a pipe line to a sea bed

Info

Publication number
IE831983L
IE831983L IE831983A IE198383A IE831983L IE 831983 L IE831983 L IE 831983L IE 831983 A IE831983 A IE 831983A IE 198383 A IE198383 A IE 198383A IE 831983 L IE831983 L IE 831983L
Authority
IE
Ireland
Prior art keywords
lowering
free end
sea bed
cylindrical structure
pipe line
Prior art date
Application number
IE831983A
Other versions
IE54452B1 (en
Original Assignee
Saipem Spa
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 Saipem Spa filed Critical Saipem Spa
Publication of IE831983L publication Critical patent/IE831983L/en
Publication of IE54452B1 publication Critical patent/IE54452B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/12—Laying or reclaiming pipes on or under water
    • F16L1/16—Laying or reclaiming pipes on or under water on the bottom
    • F16L1/166—Reclaiming pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Heat Treatment Of Articles (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Paper (AREA)

Abstract

There is disclosed an abandoning head of cylindrical structure for lowering a pipeline to the sea bed, in which the means for fixing it to a pipe portion (2) butt-welded to the free end of said pipeline consist of a series of spherical toothed sectors (5) engaging with a rack (7) formed in the end of said cylindrical structure (1), said sectors (5) being provided with locking teeth (12) cooperating with an annular projection (13) on said tube portion (2), and being disposed radially about a central sphere (8) rigid with the piston (10) of a horizontal hydraulic cylinder (11), the rear chamber (14) of which is directly connected to a medium pressure accumulator (16), said cylinder (11) being controlled by a special hydraulic circuit Fig. 5, (not shown) by means of a sound pulse or manually. <IMAGE> [GB2126312A]
IE1983/83A 1982-08-25 1983-08-24 Abandoning head of automatic release type IE54452B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22966/82A IT1190969B (en) 1982-08-25 1982-08-25 AUTOMATIC RELEASE ABANDONING HEAD

Publications (2)

Publication Number Publication Date
IE831983L true IE831983L (en) 1984-02-25
IE54452B1 IE54452B1 (en) 1989-10-11

Family

ID=11202385

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1983/83A IE54452B1 (en) 1982-08-25 1983-08-24 Abandoning head of automatic release type

Country Status (17)

Country Link
JP (1) JPS5962785A (en)
AR (1) AR230333A1 (en)
AU (1) AU557511B2 (en)
BE (1) BE897600A (en)
BR (1) BR8304607A (en)
CA (1) CA1193456A (en)
DE (1) DE3329236C2 (en)
DK (1) DK385083A (en)
ES (1) ES525594A0 (en)
FR (1) FR2532287B1 (en)
GB (1) GB2126312B (en)
IE (1) IE54452B1 (en)
IT (1) IT1190969B (en)
NL (1) NL8302919A (en)
NO (1) NO833030L (en)
NZ (1) NZ205021A (en)
PT (1) PT77240B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660403B1 (en) * 1990-03-30 1992-07-10 Coflexip FLEXIBLE ABANDONED TUBULAR PIPE, DEVICE AND METHOD USING SUCH A PIPE.
GB9930492D0 (en) 1999-12-23 2000-02-16 Saipem Spa Improvements in and relating to laying of pipeline
CN111720625B (en) * 2020-06-22 2022-09-27 哈尔滨工程大学 Pipeline recycling tool with drainage function

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842612A (en) * 1972-09-20 1974-10-22 Hydrotech Int Inc Pipeline recovery tool and method
IT983823B (en) * 1973-04-13 1974-11-11 Saipem Spa EQUIPMENT CALLED SELF-LOCKING CAP FOR THE HERMETIC CLOSURE AND RECOVERY OF PIPES PLACED ON HIGH BOTTOMS
US4116471A (en) * 1977-04-25 1978-09-26 Hydrotech International, Inc. Quick operating connector for pipes or the like
IT1097770B (en) * 1978-07-28 1985-08-31 Saipem Spa IMPROVED EQUIPMENT FOR THE RECOVERY FROM A PIPELINE SHIP OF PIPES PIPED ON HIGH LINES

Also Published As

Publication number Publication date
JPS5962785A (en) 1984-04-10
PT77240B (en) 1986-04-17
AU557511B2 (en) 1986-12-24
IT1190969B (en) 1988-02-24
GB2126312A (en) 1984-03-21
NZ205021A (en) 1985-09-13
DK385083D0 (en) 1983-08-23
IE54452B1 (en) 1989-10-11
FR2532287A1 (en) 1984-03-02
NO833030L (en) 1984-02-27
AU1739083A (en) 1984-03-01
IT8222966A0 (en) 1982-08-25
FR2532287B1 (en) 1987-01-09
PT77240A (en) 1983-09-01
ES8406687A1 (en) 1984-07-01
BE897600A (en) 1984-02-27
NL8302919A (en) 1984-03-16
BR8304607A (en) 1984-04-03
DK385083A (en) 1984-02-26
GB8322382D0 (en) 1983-09-21
DE3329236A1 (en) 1984-03-01
DE3329236C2 (en) 1985-01-17
GB2126312B (en) 1985-12-18
ES525594A0 (en) 1984-07-01
AR230333A1 (en) 1984-03-01
CA1193456A (en) 1985-09-17

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Legal Events

Date Code Title Description
MM4A Patent lapsed