PATENT CLAIM ANALYSIS

Application Number: 16075848
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["385", "012000"]

Abstract:
A method is described for compensating measurement errors of fiber Bragg grating (FBG) sensors installed in fiber cables in downhole oil and gas environments due to hydrogen darkening. The method involves loading a fiber of known length and multiple FBG sensors in a hydrogen chamber with control of temperature, hydrogen concentration, pressure, and time and adjusting each of the variables through a test matrix while continuously measuring and recording the fiber transmission loss and FBG spectrum changes, then creating a correlation map of fiber transmission loss vs. Bragg wavelength shift, and using that map for compensating the wavelength shift of downhole installed fiber cables as a function of their hydrogen induced transmission loss through time.

Claim (Index 18):
The system of  claim 13 , wherein the second machine configured to measure the hydrogen induced transmission loss comprises the second machine configured to measure the hydrogen induced transmission loss through a Fabry Perot (FP) fiber sensor multiplexed on the installed fiber cable.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 96.0
- Lexical Diversity: 1.72222
- Patent Class: 385.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13181502', '16033911', '12004233', '15693556', '11181798']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8009974880222256
- 35 USC 102 Novelty (BERT): 0.5127522512427125
- Combined Prediction Score: 0.7721729643442743
- Mean Citation Score: 220.741212
- Max Citation Score: 237.05994
- Similarity Product: 148.05999265727522

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

Dataset: test