Imperial College London
Alternate

ProfessorJoannaMorgan

Faculty of Engineering, Department of Earth Science & Engineering

Emeritus Professor of Geophysics
 
 
 
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Contact

 

+44 (0)20 7594 6423j.v.morgan

 
 
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Location

 

1.46CRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lofi:2018:10.5194/sd-24-1-2018,
author = {Lofi, J and Smith, D and Delahunty, C and Le, Ber E and Brun, L and Henry, G and Paris, J and Tikoo, S and Zylberman, W and Pezard, PA and Célérier, B and Schmitt, DR and Nixon, C and Gulick, SPS and Morgan, JV and Chenot, E and Christeson, GL and Claeys, P and Cockell, CS and Coolen, MJL and Ferrière, L and Gebhardt, C and Goto, K and Green, S and Jones, H and Kring, DA and Lowery, CM and Mellett, C and Ocampo-Torres, R and Perez-Cruz, L and Pickersgill, AE and Poelchau, M and Rae, ASP and Rasmussen, C and Rebolledo-Vieyra, M and Riller, U and Sato, H and Smit, J and Tomioka, N and Urrutia-Fucugauchi, J and Whalen, MT and Wittmann, A and Xiao, L and Yamaguchi, KE and Bralower, TJ},
doi = {10.5194/sd-24-1-2018},
journal = {Scientific Drilling},
pages = {1--13},
title = {Drilling-induced and logging-related features illustrated from IODP-ICDP Expedition 364 downhole logs and borehole imaging tools},
url = {http://dx.doi.org/10.5194/sd-24-1-2018},
volume = {24},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Expedition 364 was a joint IODP and ICDP mission-specific platform (MSP) expedition to explore the Chicxulub impact crater buried below the surface of the Yucatán continental shelf seafloor. In April and May 2016, this expedition drilled a single borehole at Site M0077 into the crater's peak ring. Excellent quality cores were recovered from ~ 505 to ~1335m below seafloor (m b.s.f.), and high-resolution open hole logs were acquired between the surface and total drill depth. Downhole logs are used to image the borehole wall, measure the physical properties of rocks that surround the borehole, and assess borehole quality during drilling and coring operations. When making geological interpretations of downhole logs, it is essential to be able to distinguish between features that are geological and those that are operation-related. During Expedition 364 some drilling-induced and logging-related features were observed and include the following: effects caused by the presence of casing and metal debris in the hole, logging-tool eccentering, drilling-induced corkscrew shape of the hole, possible re-magnetization of low-coercivity grains within sedimentary rocks, markings on the borehole wall, and drilling-induced changes in the borehole diameter and trajectory.
AU  - Lofi,J
AU  - Smith,D
AU  - Delahunty,C
AU  - Le,Ber E
AU  - Brun,L
AU  - Henry,G
AU  - Paris,J
AU  - Tikoo,S
AU  - Zylberman,W
AU  - Pezard,PA
AU  - Célérier,B
AU  - Schmitt,DR
AU  - Nixon,C
AU  - Gulick,SPS
AU  - Morgan,JV
AU  - Chenot,E
AU  - Christeson,GL
AU  - Claeys,P
AU  - Cockell,CS
AU  - Coolen,MJL
AU  - Ferrière,L
AU  - Gebhardt,C
AU  - Goto,K
AU  - Green,S
AU  - Jones,H
AU  - Kring,DA
AU  - Lowery,CM
AU  - Mellett,C
AU  - Ocampo-Torres,R
AU  - Perez-Cruz,L
AU  - Pickersgill,AE
AU  - Poelchau,M
AU  - Rae,ASP
AU  - Rasmussen,C
AU  - Rebolledo-Vieyra,M
AU  - Riller,U
AU  - Sato,H
AU  - Smit,J
AU  - Tomioka,N
AU  - Urrutia-Fucugauchi,J
AU  - Whalen,MT
AU  - Wittmann,A
AU  - Xiao,L
AU  - Yamaguchi,KE
AU  - Bralower,TJ
DO  - 10.5194/sd-24-1-2018
EP  - 13
PY  - 2018///
SN  - 1816-8957
SP  - 1
TI  - Drilling-induced and logging-related features illustrated from IODP-ICDP Expedition 364 downhole logs and borehole imaging tools
T2  - Scientific Drilling
UR  - http://dx.doi.org/10.5194/sd-24-1-2018
UR  - http://hdl.handle.net/10044/1/67164
VL  - 24
ER  -
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