GB1053311A - - Google Patents
Info
- Publication number
- GB1053311A GB1053311A GB1053311DA GB1053311A GB 1053311 A GB1053311 A GB 1053311A GB 1053311D A GB1053311D A GB 1053311DA GB 1053311 A GB1053311 A GB 1053311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jacks
- tube
- vertical
- april
- pulley
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000004804 winding 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/09—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
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)
- Drilling And Boring (AREA)
- Earth Drilling (AREA)
Abstract
1,053,311. Boring earth &c. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. April 13, 1964 [April 13, 1963], No. 15206/64. Heading E1F. In subaqueous boring apparatus comprising a tool supported at the lower end of a flexible tube which at its upper end passes over a pulley to a winding device, a substantially constant force is exerted by a fluid actuated jack or jacks on the upper part of the tube to ensure constant drilling pressure in spite of the vertical movement of the drilling vessel. Jacks 5, 6 (Fig. 4, not shown) supplied by a pneumatic accumulator 9 have their rams connected to the spindle D of the pulley, the spindle running on a vertical guide 10. In modifications vertical or inclined jacks are used separately and the lower end of the tube passes between guide pulleys on the vessel. The pneumatic accumulator may be replaced by oleo-pneumatic accumulators in parallel and having different working pressures.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1053311A true GB1053311A (en) |
Family
ID=1757485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1053311D Active GB1053311A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1053311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940111A (en) * | 1972-05-05 | 1976-02-24 | Institut Francaise Du Petrole, Des Carburants Et Lubrifiants | Apparatus for applying a determined force to an element connected to an installation subjected to alternating movements |
-
0
- GB GB1053311D patent/GB1053311A/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3940111A (en) * | 1972-05-05 | 1976-02-24 | Institut Francaise Du Petrole, Des Carburants Et Lubrifiants | Apparatus for applying a determined force to an element connected to an installation subjected to alternating movements |
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