JPS56119730A - Preventing method for ringworm corrosion of tubing - Google Patents
Preventing method for ringworm corrosion of tubingInfo
- Publication number
- JPS56119730A JPS56119730A JP2202380A JP2202380A JPS56119730A JP S56119730 A JPS56119730 A JP S56119730A JP 2202380 A JP2202380 A JP 2202380A JP 2202380 A JP2202380 A JP 2202380A JP S56119730 A JPS56119730 A JP S56119730A
- Authority
- JP
- Japan
- Prior art keywords
- tubing
- ringworm
- corrosion
- upset
- preventing method
- 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
Links
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To prevent the ringworm corrosion of steel tubing for an oil well in an easy and effective manner by upsetting the material of the tubing at a specified temp.
CONSTITUTION: The material of tubing is upset at 1,100W1,200°C to prevent ringworm corrosion which occurs at the boundary between the upset part and the base material part. In this temp. range a little structural difference is observed in the upset part and the base material part or at the boundary, and yet a large grain size difference is eliminated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2202380A JPS5952929B2 (en) | 1980-02-22 | 1980-02-22 | How to prevent ringworm corrosion in tubing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2202380A JPS5952929B2 (en) | 1980-02-22 | 1980-02-22 | How to prevent ringworm corrosion in tubing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56119730A true JPS56119730A (en) | 1981-09-19 |
JPS5952929B2 JPS5952929B2 (en) | 1984-12-22 |
Family
ID=12071378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2202380A Expired JPS5952929B2 (en) | 1980-02-22 | 1980-02-22 | How to prevent ringworm corrosion in tubing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5952929B2 (en) |
-
1980
- 1980-02-22 JP JP2202380A patent/JPS5952929B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5952929B2 (en) | 1984-12-22 |
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