GB640788A - Improvements in drill pipe protectors - Google Patents
Improvements in drill pipe protectorsInfo
- Publication number
- GB640788A GB640788A GB22357/48A GB2235748A GB640788A GB 640788 A GB640788 A GB 640788A GB 22357/48 A GB22357/48 A GB 22357/48A GB 2235748 A GB2235748 A GB 2235748A GB 640788 A GB640788 A GB 640788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drill pipe
- less
- protector
- cavities
- bore
- 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
Links
- 230000001012 protector Effects 0.000 title abstract 4
- 239000000463 material Substances 0.000 abstract 1
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
640,788. Drill pipe protectors. UNITED STATES RUBBER CO. Aug. 25, 1948, No. 22357. Convention date, Oct. 14, 1947. [Class 85] A drill pipe protectcr 11 having an outer diameter less than the inner diameter of the casing 12 and made of resilient rubber or like material has formed on the outer cylindrical surface 14 cavities 15 each of which extends over a radial angle R less than the radial angle R<SP>1</SP> subtended by the bearing surfaces between the protector and the well casing and whose rim 17 lies continuously within the cylindrical surface 14. The cavities may be elongated or circular and the bore of the protector of a less diameter than the drill rod 10 with a circumferential ridge formed at each end of the bore.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US640788XA | 1947-10-14 | 1947-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB640788A true GB640788A (en) | 1950-07-26 |
Family
ID=22053417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22357/48A Expired GB640788A (en) | 1947-10-14 | 1948-08-25 | Improvements in drill pipe protectors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB640788A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944482C (en) * | 1953-06-12 | 1956-06-14 | Jesse Elmer Hall Sen | Centering and protective sleeve for drill rods |
GB2288198A (en) * | 1994-04-08 | 1995-10-11 | Hydril Co | Free flow low energy drill pipe protector |
-
1948
- 1948-08-25 GB GB22357/48A patent/GB640788A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE944482C (en) * | 1953-06-12 | 1956-06-14 | Jesse Elmer Hall Sen | Centering and protective sleeve for drill rods |
GB2288198A (en) * | 1994-04-08 | 1995-10-11 | Hydril Co | Free flow low energy drill pipe protector |
US5542454A (en) * | 1994-04-08 | 1996-08-06 | Hydrill Company | Free flow low energy pipe protector |
GB2288198B (en) * | 1994-04-08 | 1997-12-03 | Hydril Co | Free flow low energy pipe protector |
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