CA1145902A - Curette a base de gel solidifie pour le nettoyage et l'assainissement des pipelines - Google Patents

Curette a base de gel solidifie pour le nettoyage et l'assainissement des pipelines

Info

Publication number
CA1145902A
CA1145902A CA000362839A CA362839A CA1145902A CA 1145902 A CA1145902 A CA 1145902A CA 000362839 A CA000362839 A CA 000362839A CA 362839 A CA362839 A CA 362839A CA 1145902 A CA1145902 A CA 1145902A
Authority
CA
Canada
Prior art keywords
pig
gelled
aqueous
pipeline
crosslinked
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.)
Expired
Application number
CA000362839A
Other languages
English (en)
Inventor
Robert J. Purinton, Jr.
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.)
Hydrochem LLC
Original Assignee
Dow Chemical Co
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
Priority claimed from US06/122,536 external-priority patent/US4254559A/en
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of CA1145902A publication Critical patent/CA1145902A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0555—Gelled or degradable pigs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Insulated Conductors (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
CA000362839A 1979-11-20 1980-10-21 Curette a base de gel solidifie pour le nettoyage et l'assainissement des pipelines Expired CA1145902A (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US9610679A 1979-11-20 1979-11-20
US96,106 1979-11-20
US10678479A 1979-12-26 1979-12-26
US106,784 1979-12-26
US06/122,536 US4254559A (en) 1980-02-19 1980-02-19 Method for drying pipelines
US122,536 1980-02-19

Publications (1)

Publication Number Publication Date
CA1145902A true CA1145902A (fr) 1983-05-10

Family

ID=27378095

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000362839A Expired CA1145902A (fr) 1979-11-20 1980-10-21 Curette a base de gel solidifie pour le nettoyage et l'assainissement des pipelines

Country Status (4)

Country Link
EP (1) EP0029243B1 (fr)
CA (1) CA1145902A (fr)
DE (1) DE3070680D1 (fr)
NO (1) NO157744C (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416703A (en) * 1981-11-20 1983-11-22 Shell Oil Company System for removing debris from pipelines
GB2167078B (en) * 1984-11-14 1988-04-13 Schlumberger Cie Dowell Method and composition for the treatment of pipelines
DE69013059D1 (de) * 1989-06-06 1994-11-10 Pumptech Nv Verfahren und Vorrichtung zum zeitweiligen Abdichten von Rohrleitungen.
GB0113006D0 (en) * 2001-05-30 2001-07-18 Psl Technology Ltd Intelligent pig
DE10206989A1 (de) 2002-02-19 2003-08-21 Basf Ag Verfahren zur Herstellung von Phthalsäureanhydrid
CO6170073A1 (es) * 2008-12-12 2010-06-18 Ecopetrol Sa Proceso en linea para la produccion de un gel separador de interfase y limpiador de tuberias
GB2580986A (en) * 2019-02-04 2020-08-05 Aubin Ltd Method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003393A (en) * 1973-02-14 1977-01-18 The Dow Chemical Company Gel-like composition for use as a pig in a pipeline
US4216026A (en) * 1979-02-05 1980-08-05 Shell Oil Company System for removing fluid and debris from pipelines

Also Published As

Publication number Publication date
NO157744C (no) 1988-05-11
NO157744B (no) 1988-02-01
NO803492L (no) 1981-05-21
EP0029243A1 (fr) 1981-05-27
DE3070680D1 (en) 1985-06-27
EP0029243B1 (fr) 1985-05-22

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Legal Events

Date Code Title Description
MKEX Expiry