PATENT CLAIM ANALYSIS

Application Number: 15758559
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["702", "014000"]

Abstract:
A coal collapse column identification method and related apparatus that includes acquiring seismic shot gather data in a target region and a seismic wave migration velocity file; calculating a diffraction wave travel time of each piece of single-shot data at different imaging points according to the data; performing Mahalanobis distance calculation processing on each single-shot data and the diffraction wave travel time thereof to acquire a diffraction wave amplitude value sample point of each piece of single-shot data; imaging respectively on a diffraction wave of each piece of single-shot data; and superposing imaging processing results of all the single-shot data corresponding to the seismic shot gather data to obtain a diffraction wave imaging result of the seismic shot gather data so as to facilitate coal collapse column identification according to the diffraction wave imaging result. A diffraction wave corresponding to seismic shot gather data is extracted through a Mahalanobis distance.

Claim (Index 7):
The method according to  claim 6 , wherein the step of adding the amplitude value sampling points satisfying the preset condition that are extracted from each of the amplitude sampling point sequences to obtain a diffracted wave imaging result corresponding to the each of the amplitude sampling point sequences comprises:\n adding the amplitude sampling points satisfying the preset condition that are extracted from each of the amplitude sampling point sequences through a formula V \ue8a0 ( m ) = - 1 2 \ue89e \u03c0 \ue89e \u222b \u222b A \ue89e Tri M \ue89e { w \ue8a0 ( m , r ) \ue89e u \ue8a0 ( r , t S + t R ) } \ue89e dr , to obtain a diffracted wave imaging result corresponding to the each of the amplitude sampling point sequences, wherein V(m) represents the diffracted wave imaging result, m=m(x,y,z) represents each imaging point position in the underground imaging space, u(r,t S +t R ) represents pre-processed seismic shot gather data, r(x,y,z) represents a geophone point position, t S  and t R  represent the travel time from a shot point position to the imaging point position and the travel time from the imaging point position to the geophone position, respectively, A represents a migration imaging pore diameter, w(m,r) represents a geometric spreading factor, and Tri M  represents a diffracted wave imaging operator for the removal based on the Mahalanobis distance and a reflected wave amplitude.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.36364
- Patent Class: 702.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13675699', '13454547', '10989204', '11212063', '13271249']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.228678026234437
- 35 USC 102 Novelty (BERT): 0.5002934293740613
- Combined Prediction Score: 0.2558395665483994
- Mean Citation Score: 227.961344
- Max Citation Score: 235.02913
- Similarity Product: 154.73520796725154

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test