GB997546A - Method and apparatus for inserting tools in underwater wells - Google Patents
Method and apparatus for inserting tools in underwater wellsInfo
- Publication number
- GB997546A GB997546A GB50485/63A GB5048563A GB997546A GB 997546 A GB997546 A GB 997546A GB 50485/63 A GB50485/63 A GB 50485/63A GB 5048563 A GB5048563 A GB 5048563A GB 997546 A GB997546 A GB 997546A
- Authority
- GB
- United Kingdom
- Prior art keywords
- string
- chains
- well
- lever
- arms
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 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
- E21B7/128—Underwater drilling from floating support with independent underwater anchored guide base
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)
Abstract
997,546. Boring earth etc.; well etc.; hook fastenings. CALIFORNIA RESEARCH CORPORATION. Dec. 20, 1963 [Jan. 9, 1963], No. 50485/63. Headings E1F and E2A. [Also in Division F2] A method of inserting a pipe string 52, including any tool such as a drill bit attached thereto, into an underwater well, from a vessel comprises connecting guide means 64, 65 between the well and vessel, connecting a pair of separable guide arms 60, 61 to the lower end of the string, lowering the string along the guide means, inserting the lower end of the string into the well, and disconnecting the guide arms from the string. The arms are telescopically adjustable within pipes 92, 91 fixed to angles 84, 83 adapted to engage strings of different diameter. The angles are forced into contact with each string by chains 89, 189 each having one end held in notches 122, 123 on locking means 105, 205. The chains are tensioned by tightening nuts 111, 110 to move the locking means along tracks 106, 206, springs 114, 115 maintaining the tension. The other ends of the chains hook over the ends 25, 26 of a bar 86 rotated by a lever 87, the arrangement being that when the lever is held vertically by a latch 88, the chains are held by the ends of the bar. When the lower end of the string enters the well a portion 103 of the well lifts a lever 100 connected to the latch to free the lever 87 and the chains to permit the arms to separate and fall to position shown dotted. In a modification, the latch may be operated from the vessel by a line. The chains may be replaced by cables.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US250365A US3252529A (en) | 1963-01-09 | 1963-01-09 | Method and apparatus for inserting tools in underwater wells |
Publications (1)
Publication Number | Publication Date |
---|---|
GB997546A true GB997546A (en) | 1965-07-07 |
Family
ID=22947427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50485/63A Expired GB997546A (en) | 1963-01-09 | 1963-12-20 | Method and apparatus for inserting tools in underwater wells |
Country Status (3)
Country | Link |
---|---|
US (1) | US3252529A (en) |
DE (1) | DE1974607U (en) |
GB (1) | GB997546A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3369599A (en) * | 1965-11-15 | 1968-02-20 | Mobil Oil Corp | Subsea deep drilling apparatus and method |
US3592263A (en) * | 1969-06-25 | 1971-07-13 | Acf Ind Inc | Low profile protective enclosure for wellhead apparatus |
US4149603A (en) * | 1977-09-06 | 1979-04-17 | Arnold James F | Riserless mud return system |
US4470468A (en) * | 1981-04-30 | 1984-09-11 | Raymond International Builders, Inc. | Offshore drilling of large diameter holes in rock formations |
US4480944A (en) * | 1981-04-30 | 1984-11-06 | Raymond International Builders, Inc. | Offshore drilling of large diameter holes in rock formations |
BR9401593A (en) * | 1994-04-25 | 1995-11-21 | Petroleo Brasileiro Sa | Unique guide base for drilling underwater oil wells |
NO332464B1 (en) * | 2011-11-08 | 2012-09-24 | Agr Subsea As | Method and apparatus for riserless drilling fluid recovery |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1610372A (en) * | 1925-08-24 | 1926-12-14 | Ingersoll Rand Co | Submarine hammer-drill unit |
US2184051A (en) * | 1937-12-29 | 1939-12-19 | Nat Tube Co | Well casing aligning guide |
US2929610A (en) * | 1954-12-27 | 1960-03-22 | Shell Oil Co | Drilling |
US2923531A (en) * | 1956-04-26 | 1960-02-02 | Shell Oil Co | Drilling |
US3012610A (en) * | 1956-07-26 | 1961-12-12 | Shell Oil Co | Drilling |
US3025916A (en) * | 1957-10-14 | 1962-03-20 | Socony Mobil Oil Co Inc | Apparatus for inserting tools into submarine open bore holes |
US3159218A (en) * | 1958-04-22 | 1964-12-01 | Shaffer Tool Works | Underwater drilling method |
US3096999A (en) * | 1958-07-07 | 1963-07-09 | Cameron Iron Works Inc | Pipe joint having remote control coupling means |
US3010214A (en) * | 1958-12-24 | 1961-11-28 | California Research Corp | Ship positioning means and method |
US3099316A (en) * | 1960-04-25 | 1963-07-30 | Shell Oil Co | Underwater wellhead apparatus and method |
-
1963
- 1963-01-09 US US250365A patent/US3252529A/en not_active Expired - Lifetime
- 1963-12-20 GB GB50485/63A patent/GB997546A/en not_active Expired
-
1964
- 1964-01-09 DE DEC11303U patent/DE1974607U/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3252529A (en) | 1966-05-24 |
DE1974607U (en) | 1967-12-14 |
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