GB855219A - Submerged wells - Google Patents
Submerged wellsInfo
- Publication number
- GB855219A GB855219A GB11993/59A GB1199359A GB855219A GB 855219 A GB855219 A GB 855219A GB 11993/59 A GB11993/59 A GB 11993/59A GB 1199359 A GB1199359 A GB 1199359A GB 855219 A GB855219 A GB 855219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vessel
- sub
- drill string
- well
- rollers
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000005553 drilling Methods 0.000 abstract 1
- 238000005096 rolling process Methods 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
- E21B7/136—Underwater drilling from non-buoyant support
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
855,219. Boring sub-aqueous wells. ZAPATA OFF-SHORE CO. April 9, 1959 [Oct. 27, 1958], No. 11993/59. Class 85. Apparatus for drilling a submerged well comprises a freely floating vessel 10 supporting a derrick 15 on a platform 14 overhanging the side of the vessel, and a support structure 20 mounted on the water bottom over the site of the well. The support structure 20 comprises a tripod with one vertical leg 25 and two inclined legs 26, 27 and is fixed in position by a pile driven through each leg. The pile through the vertical leg forms the top-most section of the well-casing and projects above the surface of the water. The derrick supports an I-section beam 17 which forms a guide for a trolley 8 which is attached to a travelling block 18. Suspended from the block is an hydraulicallyoperated power swivel 19 which is also guided from the I-beam 17 by arms 57 and rollers 58. The drive shaft 62 of the swivel is screwed on to the drill string 63 which includes a sub. in operation the rolling motion of the vessel is accommodated by the movement permitted by the free fit of the rollers 54 and 58 in the beam and by the flexibility of the drill string. Fig. 7 shows a view of the conditions after an exaggerated amount of roll has occurred. Vertical movement of the vessel is taken up by the sub in the drill string which, since it is mounted a constant distance above the drill-bit ensures a constant cutting pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US855219XA | 1958-10-27 | 1958-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB855219A true GB855219A (en) | 1960-11-30 |
Family
ID=22192174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11993/59A Expired GB855219A (en) | 1958-10-27 | 1959-04-09 | Submerged wells |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB855219A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2536456A1 (en) * | 1982-11-19 | 1984-05-25 | Commissariat Energie Atomique | DRILLING SYSTEM FROM A WATER PLAN, INSENSITIVE TO THE COOL |
-
1959
- 1959-04-09 GB GB11993/59A patent/GB855219A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2536456A1 (en) * | 1982-11-19 | 1984-05-25 | Commissariat Energie Atomique | DRILLING SYSTEM FROM A WATER PLAN, INSENSITIVE TO THE COOL |
US4566824A (en) * | 1982-11-19 | 1986-01-28 | Commissariat A L'energie Atomique | System for drilling from a water surface, which is insensitive to the swell |
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