Logging-while-coring method and apparatus
Abstract
A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.
- Inventors:
-
- New York, NY
- Cornwall, NY
- Issue Date:
- Research Org.:
- Joint Ocean Institutions, Inc
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 919898
- Patent Number(s):
- 7293613
- Application Number:
- 11/639,551
- Assignee:
- The Trustees of Columbia University (New York, NY)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Goldberg, David S, and Myers, Gregory J. Logging-while-coring method and apparatus. United States: N. p., 2007.
Web.
Goldberg, David S, & Myers, Gregory J. Logging-while-coring method and apparatus. United States.
Goldberg, David S, and Myers, Gregory J. Tue .
"Logging-while-coring method and apparatus". United States. https://www.osti.gov/servlets/purl/919898.
@article{osti_919898,
title = {Logging-while-coring method and apparatus},
author = {Goldberg, David S and Myers, Gregory J},
abstractNote = {A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {11}
}
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