GB1232166A - - Google Patents
Info
- Publication number
- GB1232166A GB1232166A GB1232166DA GB1232166A GB 1232166 A GB1232166 A GB 1232166A GB 1232166D A GB1232166D A GB 1232166DA GB 1232166 A GB1232166 A GB 1232166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bushing
- bit
- collar
- running
- shoulder
- 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
- 239000011435 rock 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
-
- 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
- E21B17/1007—Wear protectors; Centralising devices, e.g. stabilisers for the internal surface of a pipe, e.g. wear bushings for underwater well-heads
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
1,232,166. Boring earth and rock. ATLANTIC RICHFIELD CO, 10 July, 1969, No. 34910/69. Heading E1F. A wear bushing 10 has an external shoulder 52 for engagement with a seat 50 in a universal joint 12 at the lower end of a riser 46 extending from a surface vessel to an assembly of blowout preventers (not shown). The bushing has an internal shoulder 20 by which it is supported at the lower end of a drill pipe 56 on a drill collar 18 or bit 16 for running into position and retrieval. Where the internal diameter of the bushing is greater than that of the bit or collar an independent running-in string may be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3491069 | 1969-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1232166A true GB1232166A (en) | 1971-05-19 |
Family
ID=10371426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1232166D Expired GB1232166A (en) | 1969-07-10 | 1969-07-10 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1232166A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0330769A1 (en) * | 1988-03-01 | 1989-09-06 | Cooper Industries, Inc. | Tubular joint with seal, method for repairing seal, and repair part insert |
-
1969
- 1969-07-10 GB GB1232166D patent/GB1232166A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0330769A1 (en) * | 1988-03-01 | 1989-09-06 | Cooper Industries, Inc. | Tubular joint with seal, method for repairing seal, and repair part insert |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |