Method and system for evaluating geophysical survey data
First Claim
1. A method for evaluating geophysical measurements comprising:
- receiving first geophysical data recorded from a first flight path of a geophysical survey flight;
receiving second geophysical data recorded from neighboring flight paths of the first flight path, the neighboring flight paths being within the geophysical survey flight; and
comparing the first geophysical data and the second geophysical data to estimate a quality of the first geophysical data.
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Accused Products
Abstract
A method and system for evaluating geophysical survey data is provided. Two neighboring flight paths of a geophysical survey are likely to have geophysical characteristics in common because neighboring flight paths cover geographic areas in a close proximity to one another. As such, neighboring flight paths will likely have similar geophysical characteristics and similar recorded data. Therefore, errors in data can be estimated by comparing data recorded from neighboring flight paths. If data from a flight path differs significantly from data recorded from a neighboring flight path, then the data from one or both flight paths may be corrupted and at least one of the survey lines may need to be repeated. This auto evaluate method allows field personnel to judge data close to real time to determine whether to repeat a flight path while still out in the field.
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Citations
26 Claims
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1. A method for evaluating geophysical measurements comprising:
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receiving first geophysical data recorded from a first flight path of a geophysical survey flight;
receiving second geophysical data recorded from neighboring flight paths of the first flight path, the neighboring flight paths being within the geophysical survey flight; and
comparing the first geophysical data and the second geophysical data to estimate a quality of the first geophysical data. - View Dependent Claims (2, 3, 4)
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5. A method for evaluating geophysical measurements comprising:
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receiving geophysical data recorded from a geophysical survey flight, wherein the geophysical data is recorded from a series of flight paths covering a survey area;
selecting a first set of data from the geophysical data, wherein the first set of data is recorded from a first flight path;
generating a grid using neighboring geophysical data from the geophysical data, wherein the neighboring geophysical data is recorded from flight paths that neighbor the first flight path; and
comparing the first set of data and the grid to estimate a quality of the first set of data. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system comprising:
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a full tensor gradient instrument for recording geophysical data of a geographical area; and
a processing unit for (i) receiving first geophysical data recorded from a first flight path of a geophysical survey flight of the geographical area, (ii) receiving second geophysical data recorded from a neighboring flight path of the first flight path, (iii) and comparing the first geophysical data and the second geophysical data to estimate a quality of the first geophysical data. - View Dependent Claims (23, 24, 25)
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26. A method for evaluating geophysical measurements comprising:
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recording geophysical data during a geophysical survey flight, wherein the geophysical survey flight comprises a series of flight paths covering a survey area; and
during the geophysical survey flight, evaluating the geophysical data to estimate a quality of the geophysical data by;
selecting a first set of data from the geophysical data, wherein the first set of data is recorded from a first flight path, the first flight path being one of the series of flight paths;
generating a grid using neighboring geophysical data from the geophysical data, wherein the neighboring geophysical data is recorded from flight paths that neighbor the first flight path; and
determining a standard deviation between the first set of data and the grid to estimate a quality of the first set of data.
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Specification