Systems, computer medium and computer-implemented methods for logging using a logging tool with adjustable detectors
US-2015369956-A1 · Dec 24, 2015 · US
Method and apparatus for evaluating a cemented borehole casing
US8964504B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964504-B2 |
| Application number | US-201113079303-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 4, 2011 |
| Priority date | Apr 7, 2010 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A method of evaluating a cased borehole in an earth formation includes: emitting at least one acoustic signal into the borehole via an acoustic source and detecting a return acoustic signal via an acoustic sensor, the borehole including a casing and a casing support material disposed between the casing and a borehole wall; emitting a neutron flux via a neutron source into the borehole and detecting a radiation signal via a radiation detector, the radiation signal including induced gamma radiation resulting from neutron interactions; and identifying a casing support material characteristic based on the return acoustic signal and the radiation signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of evaluating a cased borehole in an earth formation, comprising: emitting at least one acoustic signal into the borehole via an acoustic source and detecting a return acoustic signal via an acoustic sensor, the borehole including a casing and a casing support material disposed between the casing and a borehole wall, the at least one acoustic signal configured to indicate a location of a gap in the casing support material, the gap being one of: an a…
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Fixed Constructions · mapped topic
- G01V5/101Primary
Physics · mapped topic
Physics · mapped topic
Fixed Constructions · mapped topic
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Frequently asked questions
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- What does patent US8964504B2 cover?
- A method of evaluating a cased borehole in an earth formation includes: emitting at least one acoustic signal into the borehole via an acoustic source and detecting a return acoustic signal via an acoustic sensor, the borehole including a casing and a casing support material disposed between the casing and a borehole wall; emitting a neutron flux via a neutron source into the borehole and detec…
- Who is the assignee on this patent?
- Chace David M, Ansari Rafay Z, Frost Jr Elton, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01V5/101. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).