CA2013658A1 - Process for replacing a length of buried pipe - Google Patents

Process for replacing a length of buried pipe

Info

Publication number
CA2013658A1
CA2013658A1 CA 2013658 CA2013658A CA2013658A1 CA 2013658 A1 CA2013658 A1 CA 2013658A1 CA 2013658 CA2013658 CA 2013658 CA 2013658 A CA2013658 A CA 2013658A CA 2013658 A1 CA2013658 A1 CA 2013658A1
Authority
CA
Canada
Prior art keywords
pipe
old
pit
passageway
string
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA 2013658
Other languages
French (fr)
Other versions
CA2013658C (en
Inventor
David Bruce Campbell
Donald Neil Campbell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEPTUNE CORING (WESTERN) Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2013658 priority Critical patent/CA2013658C/en
Publication of CA2013658A1 publication Critical patent/CA2013658A1/en
Application granted granted Critical
Publication of CA2013658C publication Critical patent/CA2013658C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal
    • 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
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1658—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the old pipe being ruptured prior to insertion of a new pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

"PROCESS FOR REPLACING A LENGTH OF BURIED PIPE"
ABSTRACT OF THE DISCLOSURE
The process comprises excavating pits at the first and second ends of a buried section of old water main pipe that is to be replaced with new pipe. The exposed segments of pipe are broken up to provide access to the bore of the old pipe. A pipe splitter and a cylinder-actuated pulling unit are installed in the first pit. A string of rods is extended through the old pipe bore from the first pit to the second pit. A tool assembly of sequentially connected components is attached to the second end of the rod string.
The tool assembly may comprise: means for centralizing the second end of the rod string in the second end of the old pipe section; a pull plate for bearing against the annular second end face of the old pipe section; a cylindrical plug for expanding the passageway extending between the pits; a rod member for extending through the bore of the new pipe section to be installed; and a second pull plate for bearing against the annular second end face of the new pipe. The new pipe section is mounted on the rod member and the string of rods is tripped to the first pit. In the course of tripping or retracting the rod string, the following actions simultaneously occur: the old pipe is advanced out of the passageway by pulling on it with the first pull plate; the old pipe is split longitudinally as it is advanced into the first pit; the diameter of the passageway is expanded by the plug; and the new pipe is pulled into the expanded passageway to replace the old pipe with the new pipe.
CA 2013658 1990-04-02 1990-04-02 Process for replacing a length of buried pipe Expired - Lifetime CA2013658C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2013658 CA2013658C (en) 1990-04-02 1990-04-02 Process for replacing a length of buried pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2013658 CA2013658C (en) 1990-04-02 1990-04-02 Process for replacing a length of buried pipe

Publications (2)

Publication Number Publication Date
CA2013658A1 true CA2013658A1 (en) 1991-10-02
CA2013658C CA2013658C (en) 1992-04-28

Family

ID=4144646

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2013658 Expired - Lifetime CA2013658C (en) 1990-04-02 1990-04-02 Process for replacing a length of buried pipe

Country Status (1)

Country Link
CA (1) CA2013658C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088961A1 (en) * 1999-09-29 2001-04-04 Berliner Wasserbetriebe Anstalt des öffentlichen Rechts Method for trenchless replacement of underground conduits
WO2004036107A1 (en) * 2002-10-14 2004-04-29 Tracto-Technik Gmbh Device for dismantling conduits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1088961A1 (en) * 1999-09-29 2001-04-04 Berliner Wasserbetriebe Anstalt des öffentlichen Rechts Method for trenchless replacement of underground conduits
WO2004036107A1 (en) * 2002-10-14 2004-04-29 Tracto-Technik Gmbh Device for dismantling conduits

Also Published As

Publication number Publication date
CA2013658C (en) 1992-04-28

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry