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Class Information
Number: 175/44
Name: Boring or penetrating the earth > With signaling, indicating, testing or measuring > Providing identifiable indication of core position in situ for core sample orientation
Description: Subject matter comprising a step or means to take a core sample from the formation and a step or means operative during the extraction of the core for indicating the position of the core sample in the formation, so that said core sample may be placed in the same position which it assumed while in the formation for observation after it is brought above ground.










Patents under this class:

Patent Number Title Of Patent Date Issued
8387721 Orientation head Mar. 5, 2013
8297376 Coring apparatus with sensors Oct. 30, 2012
8292004 Downhole marking apparatus and methods Oct. 23, 2012
8146684 Coring apparatus with sensors Apr. 3, 2012
7878269 Monitoring apparatus for core barrel operations Feb. 1, 2011
7789170 Sidewall coring tool and method for marking a sidewall core Sep. 7, 2010
7665542 Core barrel capacity gauge and method Feb. 23, 2010
7584055 Core sample orientation Sep. 1, 2009
7404455 Automatic SPT monitor Jul. 29, 2008
7296638 Orientation device for a core sample Nov. 20, 2007
6908262 Systems and methods for driving large diameter caissons Jun. 21, 2005
6732818 Oriented core barrel system May. 11, 2004
6659196 Core orientation Dec. 9, 2003
6386026 Cuttings sample catcher and method of use May. 14, 2002
6241029 Earth formation surveying device Jun. 5, 2001
6006844 Method and apparatus for simultaneous coring and formation evaluation Dec. 28, 1999
5957221 Downhole core sampling and testing apparatus Sep. 28, 1999
5445228 Method and apparatus for formation sampling during the drilling of a hydrocarbon well Aug. 29, 1995
5310013 Core marking system for a sidewall coring tool May. 10, 1994
5105894 Method and apparatus for orientating core sample and plug removed from sidewall of a borehole relative to a well and formations penetrated by the borehole Apr. 21, 1992
4955438 Core drilling tool Sep. 11, 1990
4883131 Core orientation system Nov. 28, 1989
4860836 Method and apparatus for indicating sample collection times during well drilling Aug. 29, 1989
4765414 Corebarrel Aug. 23, 1988
4750570 Formation sampling bullet and cables therefor Jun. 14, 1988
4664204 Fixing mechanism for a wireline core barrel of core drilling equipment May. 12, 1987
4311201 Core sample orientation tool Jan. 19, 1982
4207925 Reversible baffle plate Jun. 17, 1980
4141153 Bottom hole survey apparatus Feb. 27, 1979
4128134 Method and apparatus for determining the orientation of a core cut in a bore hole Dec. 5, 1978
3964555 Apparatus for obtaining earth cores Jun. 22, 1976











 
 
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