GB2329654B - A hold down for use in a drill collar in a well - Google Patents
A hold down for use in a drill collar in a wellInfo
- Publication number
- GB2329654B GB2329654B GB9811040A GB9811040A GB2329654B GB 2329654 B GB2329654 B GB 2329654B GB 9811040 A GB9811040 A GB 9811040A GB 9811040 A GB9811040 A GB 9811040A GB 2329654 B GB2329654 B GB 2329654B
- Authority
- GB
- United Kingdom
- Prior art keywords
- well
- hold down
- drill collar
- drill
- collar
- 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 - Fee Related
Links
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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/337,731 US5520246A (en) | 1994-11-14 | 1994-11-14 | Multi-mode cushioning an instrument suspended in a well |
GB9522264A GB2294960B (en) | 1994-11-14 | 1995-10-31 | Apparatus for the protection of instrumentation placed within a drill string |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9811040D0 GB9811040D0 (en) | 1998-07-22 |
GB2329654A GB2329654A (en) | 1999-03-31 |
GB2329654B true GB2329654B (en) | 1999-05-26 |
Family
ID=26308019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9811040A Expired - Fee Related GB2329654B (en) | 1994-11-14 | 1995-10-31 | A hold down for use in a drill collar in a well |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2329654B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1493040A (en) * | 1974-11-08 | 1977-11-23 | Koolaj Foldgazbanyaszati | Apparatus for carrying out underground measurement during drilling of underground strata |
GB2203467A (en) * | 1987-04-13 | 1988-10-19 | Otis Eng Co | Well tool connector |
US5095977A (en) * | 1990-04-10 | 1992-03-17 | Ford Michael B | Coupon holder for corrosion test downhole in a borehole |
GB2276898A (en) * | 1990-04-17 | 1994-10-12 | Teleco Oilfield Services Inc | Nuclear logging apparatus |
-
1995
- 1995-10-31 GB GB9811040A patent/GB2329654B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1493040A (en) * | 1974-11-08 | 1977-11-23 | Koolaj Foldgazbanyaszati | Apparatus for carrying out underground measurement during drilling of underground strata |
GB2203467A (en) * | 1987-04-13 | 1988-10-19 | Otis Eng Co | Well tool connector |
US5095977A (en) * | 1990-04-10 | 1992-03-17 | Ford Michael B | Coupon holder for corrosion test downhole in a borehole |
GB2276898A (en) * | 1990-04-17 | 1994-10-12 | Teleco Oilfield Services Inc | Nuclear logging apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB9811040D0 (en) | 1998-07-22 |
GB2329654A (en) | 1999-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19991031 |