SE7709331L - FRAMEWORK BLOCK FOR OPERATION IN SULFUR-WHITE ENVIRONMENT - Google Patents
FRAMEWORK BLOCK FOR OPERATION IN SULFUR-WHITE ENVIRONMENTInfo
- Publication number
- SE7709331L SE7709331L SE7709331A SE7709331A SE7709331L SE 7709331 L SE7709331 L SE 7709331L SE 7709331 A SE7709331 A SE 7709331A SE 7709331 A SE7709331 A SE 7709331A SE 7709331 L SE7709331 L SE 7709331L
- Authority
- SE
- Sweden
- Prior art keywords
- ram blocks
- based alloys
- sulfur
- disclosed
- hydrogen sulfide
- Prior art date
Links
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract 2
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
- E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
- E21B33/062—Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
RAM BLOCKS FOR HYDROGEN SULFIDE SERVICE Ram blocks for engaging and supporting drill pipe passing through blowout preventers encountering hydrogen sulfide are disclosed. The ram blocks are formed of an alloy having an upper hardness level of about Rc22 and the drill string or pipe engaging surfaces are hardfaced with a layer of nickel-based alloys, cobalt-based alloys, and tungsten-based alloys having a hardness sufficient to engage and support the drill pipe. The layer is thin enough to avoid peeling off in use and warping the ram blocks when being welded to them. A number of embodiments and examples of the invention is disclosed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71649476A | 1976-08-23 | 1976-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7709331L true SE7709331L (en) | 1978-02-24 |
Family
ID=24878215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7709331A SE7709331L (en) | 1976-08-23 | 1977-08-18 | FRAMEWORK BLOCK FOR OPERATION IN SULFUR-WHITE ENVIRONMENT |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5326201A (en) |
| AR (1) | AR226025A1 (en) |
| AT (1) | AT352662B (en) |
| BR (1) | BR7705618A (en) |
| CA (1) | CA1071097A (en) |
| DE (1) | DE2736171A1 (en) |
| DK (1) | DK371777A (en) |
| FR (1) | FR2362994A1 (en) |
| GB (1) | GB1563763A (en) |
| IT (1) | IT1115390B (en) |
| MX (1) | MX146521A (en) |
| NL (1) | NL7709135A (en) |
| NO (1) | NO772919L (en) |
| SE (1) | SE7709331L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2545625B2 (en) * | 1990-02-09 | 1996-10-23 | 中央開発株式会社 | Boring method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2194260A (en) * | 1938-06-07 | 1940-03-19 | Cameron Iron Works Inc | Single screw blowout preventer |
| US3156026A (en) * | 1961-12-04 | 1964-11-10 | Ben F Kelley Co Inc | Slip bowl |
| US3434729A (en) * | 1965-10-21 | 1969-03-25 | Shaffer Tool Works | Ram assembly |
| US3880436A (en) * | 1973-07-05 | 1975-04-29 | Rucker Co | Ram block |
-
1977
- 1977-08-11 DE DE19772736171 patent/DE2736171A1/en not_active Withdrawn
- 1977-08-16 MX MX170262A patent/MX146521A/en unknown
- 1977-08-18 GB GB34687/77A patent/GB1563763A/en not_active Expired
- 1977-08-18 NL NL7709135A patent/NL7709135A/en not_active Application Discontinuation
- 1977-08-18 SE SE7709331A patent/SE7709331L/en not_active Application Discontinuation
- 1977-08-22 NO NO772919A patent/NO772919L/en unknown
- 1977-08-22 CA CA285,215A patent/CA1071097A/en not_active Expired
- 1977-08-22 DK DK371777A patent/DK371777A/en not_active Application Discontinuation
- 1977-08-23 AR AR268897A patent/AR226025A1/en active
- 1977-08-23 BR BR7705618A patent/BR7705618A/en unknown
- 1977-08-23 JP JP10020777A patent/JPS5326201A/en active Pending
- 1977-08-23 AT AT608877A patent/AT352662B/en not_active IP Right Cessation
- 1977-08-23 FR FR7725630A patent/FR2362994A1/en not_active Withdrawn
- 1977-08-23 IT IT26891/77A patent/IT1115390B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK371777A (en) | 1978-02-24 |
| ATA608877A (en) | 1979-03-15 |
| FR2362994A1 (en) | 1978-03-24 |
| GB1563763A (en) | 1980-04-02 |
| MX146521A (en) | 1982-07-07 |
| CA1071097A (en) | 1980-02-05 |
| DE2736171A1 (en) | 1978-03-02 |
| NO772919L (en) | 1978-02-24 |
| AT352662B (en) | 1979-10-10 |
| NL7709135A (en) | 1978-02-27 |
| IT1115390B (en) | 1986-02-03 |
| JPS5326201A (en) | 1978-03-10 |
| AR226025A1 (en) | 1982-05-31 |
| BR7705618A (en) | 1978-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
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