Systems, computer medium and computer-implemented methods for logging using a logging tool with adjustable detectors
US-2015369956-A1 · Dec 24, 2015 · US
Method for measuring subterranean formation density using a neutron generator
US9057794B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9057794-B2 |
| Application number | US-201113819264-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 10, 2011 |
| Priority date | Aug 26, 2010 |
| Publication date | Jun 16, 2015 |
| Grant date | Jun 16, 2015 |
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Abstract
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A method for determining a bulk formation density using a neutron generator includes detected secondary gamma rays and evaluating the detected gamma rays according to pre-determined selection criteria. Selected gamma rays are then used to compute the formation density. The selection criteria may include, for example, a time delay between the detection of a neutron and an associated particle and/or a direction of propagation of the neutron.
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We claim: 1. A method for measuring a formation density of a subterranean formation, the method comprising: (a) generating neutrons in a subterranean borehole using an accelerator based neutron generator, said generated neutrons being emitted into a surrounding borehole environment; (b) detecting secondary gamma rays in the subterranean borehole, the secondary gamma rays being generated by an interaction between the neutrons generated in (a) and the surrounding borehole environm…
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- What does patent US9057794B2 cover?
- A method for determining a bulk formation density using a neutron generator includes detected secondary gamma rays and evaluating the detected gamma rays according to pre-determined selection criteria. Selected gamma rays are then used to compute the formation density. The selection criteria may include, for example, a time delay between the detection of a neutron and an associated particle and…
- Who is the assignee on this patent?
- Xu Libai, Mckinny Kevin S, Huiszoon Cornelis, 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 Jun 16 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).