PATENT CLAIM ANALYSIS

Application Number: 16061584
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["166", "285000"]

Abstract:
Systems and methods for signaling the detection of a fluid change in a wellbore can be used during wellbore operations, such as cementing a casing in the wellbore. The systems and methods involve using burst discs to provide a pressure pulse that can be detected uphole and there by provide a signal related to when a fluid change has reached a predetermined position in the wellbore. The burst discs can be activated to prevent fluid flow in a portion of the wellbore by a sensor that detects a property that is different between two fluids. Once activated, the pressure of the fluid on the burst discs subsequently ruptures the burst disc and creates the pressure pulse.

Claim (Index 16):
A system for signaling the detection of a fluid change in a reverse cementing operation, the system comprising:\n a burst disc located in a central bore of a casing in a wellbore, the burst disc having a first position allowing fluid flow through the central bore and a second position preventing fluid flow through the central bore; wherein, when the burst disc is in the second position, the burst disc ruptures due to pressure from a fluid downhole from the burst disc when the pressure reaches a predetermined pressure and the rupturing creates a pressure pulse; a sensor associated with the burst disc that detects at least one property that is different between a first fluid and a cement, wherein the cement is introduced into an annulus formed between the casing and wellbore and flows downhole thereby displacing the first fluid to flow uphole through the central bore, and wherein the sensor detects a change in the property when the cement flows past the sensor; a receiver located at a pipe's uphole end and configured to detect the pressure pulse.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 94.0
- Lexical Diversity: 1.90625
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13164336', '14382623', '12999940', '13031524', '16318697']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8105109855258913
- 35 USC 102 Novelty (BERT): 0.494022916486028
- Combined Prediction Score: 0.778862178621905
- Mean Citation Score: 263.29286
- Max Citation Score: 282.68427
- Similarity Product: 208.645415863958

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

Dataset: test