Systems and methods for the quantitative estimate of production-forecast uncertainty
US-9223042-B2 · Dec 29, 2015 · US
Decomposition of the seismic moment tensor
US9507889B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9507889-B2 |
| Application number | US-201113877860-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 6, 2011 |
| Priority date | Oct 8, 2010 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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Analysis of a seismic event, such as a microseismic event caused by hydraulic fracturing, comprises measuring seismic waves emitted by the event and converting the measurements into two values for magnitude of explosion or implosion and for magnitude of displacement discontinuity at a plane, together with two directions, a direction of a normal to the plane and a direction of displacement; where the two values and the two directions compose the moment tensor describing the seismic event. The measurements may be converted into the moment tensor and decomposed into the values and directions. The values and directions associated with several seismic events may be displayed concurrently on a graphic display as a graphic representation of multiple events, where each event may be depicted with magnitude of expansion or contraction represented by a volume and the plane represented as a laminar object.
First claim
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The invention claimed is: 1. A method of analysing an underground seismic event comprising: performing a hydraulic fracturing which causes a seismic event; receiving and measuring seismic waves emitted by the seismic event using one or more seismic data recording devices; converting the measurements of the seismic waves using a digital computer into a value for magnitude of explosion or implosion, a value for magnitude of displacement discontinuity at a plane, the directi…
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Physics · mapped topic
Physics · mapped topic
- G01V1/30Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9507889B2 cover?
- Analysis of a seismic event, such as a microseismic event caused by hydraulic fracturing, comprises measuring seismic waves emitted by the event and converting the measurements into two values for magnitude of explosion or implosion and for magnitude of displacement discontinuity at a plane, together with two directions, a direction of a normal to the plane and a direction of displacement; wher…
- Who is the assignee on this patent?
- Chapman Christopher, Leaney Walter Scott, Alexander Adrian, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01V1/30. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 29 2016 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).