GB547065A - Earth boring apparatus of the core drilling type - Google Patents
Earth boring apparatus of the core drilling typeInfo
- Publication number
- GB547065A GB547065A GB1764/41A GB176441A GB547065A GB 547065 A GB547065 A GB 547065A GB 1764/41 A GB1764/41 A GB 1764/41A GB 176441 A GB176441 A GB 176441A GB 547065 A GB547065 A GB 547065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- core
- rod
- core barrel
- passage
- 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
- 238000005553 drilling Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 4
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000012858 resilient material 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/08—Coating, freezing, consolidating cores; Recovering uncontaminated cores or cores at formation pressure
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)
- Actuator (AREA)
- Earth Drilling (AREA)
Abstract
547,065. Borehole apparatus. STANDARD OIL DEVELOPMENT CO. Feb. 10, 1941. No. 1764. Convention date, Feb. 10, 1940. [Class 85] In a core-boring apparatus in which the core is received in a pressure chamber capable of being sealed in a fluid tight manner, a fluid tight expansible member is provided in connection with the chamber whereby the pressure differential is reduced as the core is raised to the surface. In Fig. 1, the drill stem 5 encloses a cylinder 35 connected to a block 36 provided with fluid passages 38, 39, a depending knife edge 53, guide fins 64 and a longitudinal passage 40 controlled by a needle valve 41 and leading to a lateral passage 42 normally closed by a plug 43. Inside cylinder 35, the core barrel depends from a collar 51 carried by a rod 25 passing slidably through block 36 and connected by coupling 24 to a rod 20, the coupling 24 having limited longitudinal movement relative to a sleeve 44 with fins 47 forming a seat for the bevelled edge of a cylinder 7 connected by linkage to the rod 20. An expansible rubber sleeve 101 is held by clamps 102 around an apertured part of cylinder 35. In use, when the core barrel strikes the bottom of the hole, rods 25, 20 are forced upwardly and rod 20 is locked to cylinder 7; the core is then cut, displaced fluid passing through passages 38, 39. Cylinder 7 and rod 20 are then raised to move the core barrel within cylinder 35 to allow a valve to close the lower end of the latter, and resilient material 52 on the collar 51 contacts the knife edge 53 to close the upper end. The core barrel is then raised to the surface, during which movement, the pressure differential is reduced by expansion of the rubber sleeve 101. The plug 43 may then be removed and collecting means connected to passage 42 to receive volatile matter from the core barrel on opening valve 41. In Fig. 2, the rubber sleeve 101 is replaced by a bellows 105 connected by passage 104 with the interior.of cylinder 35; in other forms, the bellows is replaced by a rubber balloon or by a telescoping member.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US318266A US2287909A (en) | 1940-02-10 | 1940-02-10 | Expansion chamber for pressure core barrels |
Publications (1)
Publication Number | Publication Date |
---|---|
GB547065A true GB547065A (en) | 1942-08-12 |
Family
ID=23237424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1764/41A Expired GB547065A (en) | 1940-02-10 | 1941-02-10 | Earth boring apparatus of the core drilling type |
Country Status (2)
Country | Link |
---|---|
US (1) | US2287909A (en) |
GB (1) | GB547065A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2248257A (en) * | 1990-09-13 | 1992-04-01 | Diamant Boart Stratabit Ltd | Corebarrel |
WO2013060720A3 (en) * | 2011-10-25 | 2013-06-20 | Technische Universität Berlin | Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734719A (en) * | 1956-02-14 | otway | ||
US2664049A (en) * | 1948-02-16 | 1953-12-29 | Dresser Equipment Company | Fluid-operated pump with pneumatic shock absorber |
US2703697A (en) * | 1950-12-15 | 1955-03-08 | Robert D Walker | Process and apparatus for well coring |
US4142594A (en) * | 1977-07-06 | 1979-03-06 | American Coldset Corporation | Method and core barrel apparatus for obtaining and retrieving subterranean formation samples |
US4272987A (en) * | 1979-12-03 | 1981-06-16 | Christensen, Inc. | Pressure core barrel flushing system |
US4356872A (en) * | 1980-08-21 | 1982-11-02 | Christensen, Inc. | Downhole core barrel flushing system |
US9506307B2 (en) * | 2011-03-16 | 2016-11-29 | Corpro Technologies Canada Ltd. | High pressure coring assembly and method |
CN114687692B (en) * | 2022-03-29 | 2024-04-09 | 许蕾 | Drilling equipment for geological survey |
-
1940
- 1940-02-10 US US318266A patent/US2287909A/en not_active Expired - Lifetime
-
1941
- 1941-02-10 GB GB1764/41A patent/GB547065A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2248257A (en) * | 1990-09-13 | 1992-04-01 | Diamant Boart Stratabit Ltd | Corebarrel |
GB2248257B (en) * | 1990-09-13 | 1995-05-03 | Diamant Boart Stratabit Ltd | Corebarrel |
WO2013060720A3 (en) * | 2011-10-25 | 2013-06-20 | Technische Universität Berlin | Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location |
AU2012330484B2 (en) * | 2011-10-25 | 2017-01-05 | Corsyde International Gmbh & Co. Kg | Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location |
AU2012330484C1 (en) * | 2011-10-25 | 2017-04-20 | Corsyde International Gmbh & Co. Kg | Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location |
US9976369B2 (en) | 2011-10-25 | 2018-05-22 | Corsyde International Gmbh & Co. Kg | Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location |
Also Published As
Publication number | Publication date |
---|---|
US2287909A (en) | 1942-06-30 |
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