JPS6440800A - Method of preventing leakage of residual oil in oil feed pipe - Google Patents

Method of preventing leakage of residual oil in oil feed pipe

Info

Publication number
JPS6440800A
JPS6440800A JP19373487A JP19373487A JPS6440800A JP S6440800 A JPS6440800 A JP S6440800A JP 19373487 A JP19373487 A JP 19373487A JP 19373487 A JP19373487 A JP 19373487A JP S6440800 A JPS6440800 A JP S6440800A
Authority
JP
Japan
Prior art keywords
pipe
riser
riser pipe
oil
residual oil
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.)
Pending
Application number
JP19373487A
Other languages
Japanese (ja)
Inventor
Koichi Omori
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.)
Tonen General Sekiyu KK
Original Assignee
Toa Nenryo Kogyyo KK
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 Toa Nenryo Kogyyo KK filed Critical Toa Nenryo Kogyyo KK
Priority to JP19373487A priority Critical patent/JPS6440800A/en
Publication of JPS6440800A publication Critical patent/JPS6440800A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pipeline Systems (AREA)

Abstract

PURPOSE:To prevent residual oil from leaking, by covering a riser pipe upstanding from the sea bottom with a protecting pipe, and by charging inert gas between the protecting pipe and the riser pipe. CONSTITUTION:Crude oil flows through a sea berth riser pipe 11 by way of a feed valve 14, and is fed from the sea bottom part 13 into an onland tank through an onland riser pipe 12. The sea berth riser pipe 11 is covered with a protecting pipe 16, and nitrogen gas fed from a nitrogen gas bomb 17 is charged between the protecting pipe 16 and the riser pipe 11. Accordingly, even though any of the riser pipes 11 12 is broken, nitrogen gas may prevent leakage of residual oil.
JP19373487A 1987-08-04 1987-08-04 Method of preventing leakage of residual oil in oil feed pipe Pending JPS6440800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19373487A JPS6440800A (en) 1987-08-04 1987-08-04 Method of preventing leakage of residual oil in oil feed pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19373487A JPS6440800A (en) 1987-08-04 1987-08-04 Method of preventing leakage of residual oil in oil feed pipe

Publications (1)

Publication Number Publication Date
JPS6440800A true JPS6440800A (en) 1989-02-13

Family

ID=16312921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19373487A Pending JPS6440800A (en) 1987-08-04 1987-08-04 Method of preventing leakage of residual oil in oil feed pipe

Country Status (1)

Country Link
JP (1) JPS6440800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110017431A (en) * 2019-04-19 2019-07-16 美钻深海能源科技研发（上海）有限公司 Base station and its method for inspecting based on underwater cruising inspection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110017431A (en) * 2019-04-19 2019-07-16 美钻深海能源科技研发（上海）有限公司 Base station and its method for inspecting based on underwater cruising inspection system
CN110017431B (en) * 2019-04-19 2020-09-08 美钻深海能源科技研发（上海）有限公司 Base station based on underwater inspection system and inspection method thereof

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