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US 2016/0239398 A1Published application
Inversion domain merge based on cell statistics
AssigneePGS Geophysical AS
InventorsCarl Joel Gustav SKOGMAN, Lars Erik Magnus BJORNEMO
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Abstract
Methods of geophysical prospecting and surveying are disclosed herein. The methods include obtaining a raw data set representing energy signatures recorded over an area of the earth and using a computer to form a final data set representing the physical properties of the area of the earth, the process including combining physical property data subsets into a final data set using a quality statistic for each physical property data subset or each datum of each physical property data subset as a weighting factor to compute a weighted average.
Claims25
A method of geophysical surveying, comprising:
- obtaining a raw data set representing energy signatures recorded over an area of the earth represented as a domain of the raw data set, wherein the domain is defined as a plurality of cells;
- entering the raw data set into a computer;
- and
- using the computer to perform a process to form a final data set representing the physical properties of the area of the earth, the process comprising:
- defining a plurality of subdomains of the domain;
- defining a subset of the raw data set for each subdomain;
- inverting each subset to form a plurality of physical property data subsets;
- and
- combining the physical property data subsets into a final data set over the domain by a combination process, comprising:
- defining a quality statistic for each physical property data subset or each datum of each physical property data subset;
- and
- for each cell in the domain, identifying the corresponding physical property datum in each physical property data subset that contains a datum for the cell and computing a weighted average of the identified physical property data using the quality statistic for each identified physical property datum as a weighting factor.
9 more elements
A method of geophysical prospecting, comprising:
- emitting energy toward an area of the earth;
- recording energy signature responses to the emitted energy from the area of the earth in a raw data set dimensioned over a domain representing the area of the earth, wherein the domain is defined as a plurality of cells;
- entering the raw data set into a computer;
- and
- using the computer to perform a process to form a final data set representing the physical properties of the area of the earth, the process comprising:
- defining a plurality of subdomains of the domain;
- defining a subset of the raw data set for each subdomain;
- inverting each subset to form a plurality of physical property data subsets;
- and
- combining the physical property data subsets into a final data set of physical properties of the earth over the domain by a process, comprising:
- defining a quality statistic for each physical property data subset or each datum of each physical property data subset;
- and
- for each cell in the domain, identifying the corresponding physical property datum in each physical property data subset that contains a datum for the cell and computing a weighted average of the identified physical property data using the quality statistic for each identified physical property datum as a weighting factor.
10 more elements
A data product of physical properties of an area of the earth created by a process, comprising:
- entering a raw data set into a computer, the raw data set representing energy signatures recorded over an area of the earth represented as a domain of the raw data set, wherein the domain is defined as a plurality of cells;
- and
- using the computer to perform a process to form a final data set representing the physical properties of the area of the earth, the process comprising:
- defining a plurality of subdomains of the domain;
- forming a subset of the raw data set for each subdomain;
- inverting each subset to form a plurality of physical property data subsets;
- and
- combining the physical property data subsets into a final data set of physical properties of the earth over the domain by a process, comprising:
- defining a quality statistic for each physical property data subset or each datum of each physical property data subset;
- and
- for each cell in the domain, identifying the corresponding physical property datum in each physical property data subset that contains a datum for the cell and computing a weighted average of the identified physical property data in the vector using the quality statistic for each identified physical property datum as a weighting factor.
8 more elements
Dependencies are inferred from the claim text.