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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 |
| 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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