NO20061295L - Nedihullssikkerhetsventil - Google Patents
NedihullssikkerhetsventilInfo
- Publication number
- NO20061295L NO20061295L NO20061295A NO20061295A NO20061295L NO 20061295 L NO20061295 L NO 20061295L NO 20061295 A NO20061295 A NO 20061295A NO 20061295 A NO20061295 A NO 20061295A NO 20061295 L NO20061295 L NO 20061295L
- Authority
- NO
- Norway
- Prior art keywords
- pipe
- safety valve
- valve
- downhole safety
- closes
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 1
- 238000007789 sealing 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
- E21B34/085—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained with time-delay systems, e.g. hydraulic impedance mechanisms
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
- E21B34/108—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with time delay systems, e.g. hydraulic impedance mechanisms
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/05—Flapper valves
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)
- Safety Valves (AREA)
Abstract
Den foreliggende oppfinnelse tilveiebringer en fremgangsmåte og et apparat for valgvis tetting av en rørboring (204). Rørventilen (200) innbefatter som regel et stengeelement (203) som plasseres i og som stenger rørboringen (204), og et trykkaktivert holdeelement (212) med en første og en motstilt andre stempelflate (209), som åpner og stenger ventilen (200). Rørventilen (200) forhindrer plutselige trykktap i røret (204) og kan styres fra overflaten.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66448705P | 2005-03-23 | 2005-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20061295L true NO20061295L (no) | 2006-09-25 |
Family
ID=36383969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20061295A NO20061295L (no) | 2005-03-23 | 2006-03-21 | Nedihullssikkerhetsventil |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA2540997A1 (no) |
GB (2) | GB2465928B (no) |
NO (1) | NO20061295L (no) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101839117B (zh) * | 2010-04-21 | 2014-04-02 | 中国石油化工股份有限公司 | 环空安全阀 |
US10787900B2 (en) | 2013-11-26 | 2020-09-29 | Weatherford Technology Holdings, Llc | Differential pressure indicator for downhole isolation valve |
US10107075B2 (en) | 2015-03-24 | 2018-10-23 | Weatherford Technology Holdings, Llc | Downhole isolation valve |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373587A (en) * | 1980-12-08 | 1983-02-15 | Camco, Incorporated | Fluid displacement well safety valve |
US4664195A (en) * | 1986-01-31 | 1987-05-12 | Otis Engineering Corporation | Safety valve |
US6988556B2 (en) * | 2002-02-19 | 2006-01-24 | Halliburton Energy Services, Inc. | Deep set safety valve |
US7246668B2 (en) * | 2004-10-01 | 2007-07-24 | Weatherford/Lamb, Inc. | Pressure actuated tubing safety valve |
-
2006
- 2006-03-21 CA CA002540997A patent/CA2540997A1/en not_active Abandoned
- 2006-03-21 NO NO20061295A patent/NO20061295L/no not_active Application Discontinuation
- 2006-03-23 GB GB1004979A patent/GB2465928B/en not_active Expired - Fee Related
- 2006-03-23 GB GB0605750A patent/GB2424435B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB0605750D0 (en) | 2006-05-03 |
GB2465928B (en) | 2010-08-04 |
GB2424435B (en) | 2010-05-19 |
GB2424435A (en) | 2006-09-27 |
GB201004979D0 (en) | 2010-05-12 |
GB2465928A (en) | 2010-06-09 |
CA2540997A1 (en) | 2006-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |