FR2265967A1 - Regulating working press. of a drill - compensating for the effects of swell during drilling operations at sea - Google Patents
Regulating working press. of a drill - compensating for the effects of swell during drilling operations at seaInfo
- Publication number
- FR2265967A1 FR2265967A1 FR7509104A FR7509104A FR2265967A1 FR 2265967 A1 FR2265967 A1 FR 2265967A1 FR 7509104 A FR7509104 A FR 7509104A FR 7509104 A FR7509104 A FR 7509104A FR 2265967 A1 FR2265967 A1 FR 2265967A1
- Authority
- FR
- France
- Prior art keywords
- drill
- drilling operations
- sea
- compensating
- effects
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title abstract 3
- 230000000694 effects Effects 0.000 title abstract 3
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000012530 fluid 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
- 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)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
An appts. for regulating the working press. of a drill and compensating for the effect of swell during drilling operations at sea incorporates means of displacing one of the pulleys over which the cable carrying the drill passes, and thus increasing or decreasing the effective length of cable between its winch and the drill. The means consists of a piston fixed to the pulley and sliding in a cylinder connected to a source of fluid under press. and means of varying the press. in the cylinder. The cylinder may be mounted at the top of the drill structure or on the platform. The invention avoids the inconvenience of the drilling operations being stopped during the increasing or reducing of the weights on the drill, as in existing practice and eliminates the effects of the movement of the platform caused by the action of waves, tides and currents.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB13256/74A GB1504861A (en) | 1974-03-25 | 1974-03-25 | Drilling machine constant feed-force apparatus |
| GB2093374 | 1974-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2265967A1 true FR2265967A1 (en) | 1975-10-24 |
| FR2265967B3 FR2265967B3 (en) | 1977-11-25 |
Family
ID=26249654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7509104A Granted FR2265967A1 (en) | 1974-03-25 | 1975-03-24 | Regulating working press. of a drill - compensating for the effects of swell during drilling operations at sea |
Country Status (9)
| Country | Link |
|---|---|
| AR (1) | AR207240A1 (en) |
| AU (1) | AU7935075A (en) |
| BR (1) | BR7501718A (en) |
| EG (1) | EG12052A (en) |
| ES (1) | ES435811A1 (en) |
| FI (1) | FI750810A (en) |
| FR (1) | FR2265967A1 (en) |
| NO (1) | NO750891L (en) |
| SE (1) | SE7502392L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3015752A1 (en) * | 1980-04-24 | 1981-10-29 | Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter | LAFETTEN DRILL DRILL |
-
1975
- 1975-01-01 AR AR258070A patent/AR207240A1/en active
- 1975-03-04 SE SE7502392A patent/SE7502392L/sv unknown
- 1975-03-17 NO NO750891A patent/NO750891L/no unknown
- 1975-03-19 FI FI750810A patent/FI750810A/fi not_active Application Discontinuation
- 1975-03-20 ES ES435811A patent/ES435811A1/en not_active Expired
- 1975-03-20 AU AU79350/75A patent/AU7935075A/en not_active Expired
- 1975-03-21 BR BR1718/75A patent/BR7501718A/en unknown
- 1975-03-24 FR FR7509104A patent/FR2265967A1/en active Granted
- 1975-03-24 EG EG155/75A patent/EG12052A/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3015752A1 (en) * | 1980-04-24 | 1981-10-29 | Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter | LAFETTEN DRILL DRILL |
Also Published As
| Publication number | Publication date |
|---|---|
| ES435811A1 (en) | 1977-02-16 |
| NO750891L (en) | 1975-09-26 |
| EG12052A (en) | 1978-09-30 |
| FI750810A (en) | 1975-09-27 |
| FR2265967B3 (en) | 1977-11-25 |
| AR207240A1 (en) | 1976-09-22 |
| BR7501718A (en) | 1975-12-23 |
| AU7935075A (en) | 1976-09-23 |
| SE7502392L (en) | 1975-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |