Invention Grant
- Patent Title: Air hammer coring apparatus and method
- Patent Title (中): 气锤取芯装置及方法
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Application No.: US12524326Application Date: 2008-01-24
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Publication No.: US08757293B2Publication Date: 2014-06-24
- Inventor: James I. Livingstone
- Applicant: James I. Livingstone
- Applicant Address: CA Calgary
- Assignee: J. I. Livingstone Enterprises Ltd.
- Current Assignee: J. I. Livingstone Enterprises Ltd.
- Current Assignee Address: CA Calgary
- Agency: Bennett Jones LLP
- International Application: PCT/CA2008/000170 WO 20080124
- International Announcement: WO2008/089579 WO 20080731
- Main IPC: E21B49/00
- IPC: E21B49/00 ; E21B10/02 ; E21B49/02

Abstract:
A coring method and apparatus is provided for extracting a core sample from a subterranean formation and/or drilling a hydrocarbon well, the coring apparatus having: a pneumatic reciprocating hammer having a first end for operatively connecting the pneumatic reciprocating hammer to a drill string, a second end having a hammer bit and a reciprocating piston for reciprocating the hammer bit; and a coring member operatively connected to the pneumatic reciprocation hammer, the coring member comprising an impact anvil and a hollow coring barrel forming an internal longitudinal chamber for accommodating the core sample, the coring barrel positioned below the impact anvil; whereby when the hammer bit strikes the impact anvil, the coring barrel is driven into the formation and the core sample is extracted into the internal longitudinal chamber of the coring barrel.
Public/Granted literature
- US20100084193A1 AIR HAMMER CORING APPARATUS AND METHOD Public/Granted day:2010-04-08
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