Borehole image logs: Difference between revisions

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Borehole imaging logs are logging and data-processing methods used to produce two-dimensional, centimeter-scale images of a borehole wall and the rocks that make it up. These tools are limited to the open-hole environment. The applications where images are useful cover the full range of the exploration and production cycle from exploration through appraisal, development, and production to abandonment and sealing.

Specific applications are sedimentology, structural geology/tectonics, reservoir geomechanics and drilling, reservoir engineering.

The tools can be categorized in a number of ways: simple optical borehole imaging (OBI) systems, energy source (electrical, acoustic, or nuclear with gamma rays or neutron); conveyance (wireline or logging while drilling); and type of drilling mud (water-based mud or oil-based mud).

References

Pöppelreiter; García-Carballido; Kraaijveld (2010). Dipmeter and Borehole Image Log Technology. American Association of Petroleum Geologists. ISBN 978-0-89181-373-6.

This technology-related article is a stub. You can help Wikipedia by expanding it.

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+{{Short description|Data logging method}}
-{{Multiple issues|
-{{Dead end|date=March 2016}}
+{{Unreferenced|date=May 2021}}
-{{Orphan|date=March 2016}}
-}}
-'''Borehole Imaging Logs''' are logging and data-processing methods used to produce two-dimensional, centimeter-scale images of a borehole wall and the rocks that make it up .These tools are limited to the open-hole environment. The applications where images are useful cover the full range the E&P cycle from exploration through appraisal, development, and production to abandonment. <br />
+'''Borehole imaging logs''' are logging and [[Data processing|data-processing]] methods used to produce [[Two-dimensional space|two-dimensional]], centimeter-scale images of a [[borehole]] wall and the rocks that make it up. These tools are limited to the open-hole environment. The applications where images are useful cover the full range of the exploration and production cycle from exploration through appraisal, development, and production to abandonment and sealing.
-Specific applications are sedimentology, structural geology/tectonics, reservoir geomechanics and drilling, reservoir engineering.
+Specific applications are [[sedimentology]], [[structural geology]]/[[tectonics]], reservoir [[geomechanics]] and drilling, [[reservoir engineering]].
-The tools can be categorized a number of ways: energy source (electrical, acoustic, or nuclear); conveyance (wireline or logging while drilling (LWD)); and mud type (water-based mud (WMD) or oil-based mud (OBM)).
+The tools can be categorized in a number of ways: simple optical borehole imaging (OBI) systems, energy source (electrical, acoustic, or nuclear with [[gamma ray]]s or [[neutron]]); [[Conveyancing|conveyance]] ([[Wireline (cabling)|wireline]] or [[Well logging|logging]] while drilling); and type of [[drilling mud]] (water-based mud or oil-based mud).
-== Image Basics ==
+== See also ==
+* {{Annotated link|Erygmascope}}
+* [[List of abbreviations in oil and gas exploration and production]]
-=== What 2 dimensional means ===
-[[File:2DArrayToTadpoles.jpg|thumb|804x804px|Image logs are 2 dimensional data sets meaning that there are multiple values recorded at each depth and at different positions around the borehole.  When projected onto a plane (like a computer screen or sheet of paper a 2D image is created.<ref>Schlumberger Oilfield Review, vol. 27, no. 2, (Sept 2015), pages 4-20</ref>]]
-=== Tadpoles ===
-=== Tadpoles ===
-[[File:Tadpoles2.jpg|thumb|313x313px|The planar features are quantified with a tadpole map that relates depth with the dip angle and dip direction of the plane.]]
-=== Curves to images ===
-[[File:CurveToImage.jpg|thumb|799x799px|The tool measures values that are recorded as a curve (or log).  This curve is converted into a color strip that is merged with other strip from the tool to create the image.]]
-=== Image normalization ===
-[[File:StaticDynamicImages.jpg|thumb|777x777px|The images can be normalized to a local color map to bring out hidden or subtle features.]]
 ==References==
 {{Reflist}}
+* {{cite book
+| last = Pöppelreiter
-{{Uncategorized|date=March 2016}}
+| last2 = García-Carballido
+| last3 = Kraaijveld
+| date = 2010
+| title = Dipmeter and Borehole Image Log Technology
+| publisher=American Association of Petroleum Geologists
+| isbn=978-0-89181-373-6
+| url=https://pubs.geoscienceworld.org/aapg/books/book/1263/Dipmeter-and-Borehole-Image-Log-Technology
+}}
+[[Category:Boreholes]]
+[[Category:Data processing]]
+[[Category:Well logging]]
+{{tech-stub}}