NO157744C - Fremgangsmaate for innvendig rengjoering av roerledninger. - Google Patents

Fremgangsmaate for innvendig rengjoering av roerledninger.

Info

Publication number
NO157744C
NO157744C NO803492A NO803492A NO157744C NO 157744 C NO157744 C NO 157744C NO 803492 A NO803492 A NO 803492A NO 803492 A NO803492 A NO 803492A NO 157744 C NO157744 C NO 157744C
Authority
NO
Norway
Prior art keywords
pipes
procedure
internal cleaning
cleaning
internal
Prior art date
Application number
NO803492A
Other languages
English (en)
Norwegian (no)
Other versions
NO157744B (no
NO803492L (no
Inventor
Robert James Purinton Jr
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
Publication of NO803492L publication Critical patent/NO803492L/no
Publication of NO157744B publication Critical patent/NO157744B/no
Publication of NO157744C publication Critical patent/NO157744C/no

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)
NO803492A 1979-11-20 1980-11-19 Fremgangsmaate for innvendig rengjoering av roerledninger. NO157744C (no)

Applications Claiming Priority (3)

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

Publications (3)

Publication Number Publication Date
NO803492L NO803492L (no) 1981-05-21
NO157744B NO157744B (no) 1988-02-01
NO157744C true NO157744C (no) 1988-05-11

Family

ID=27378095

Family Applications (1)

Application Number Title Priority Date Filing Date
NO803492A NO157744C (no) 1979-11-20 1980-11-19 Fremgangsmaate for innvendig rengjoering av roerledninger.

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
DE3070680D1 (en) 1985-06-27
CA1145902A (fr) 1983-05-10
EP0029243A1 (fr) 1981-05-27
NO157744B (no) 1988-02-01
NO803492L (no) 1981-05-21
EP0029243B1 (fr) 1985-05-22

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