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 1):
A method of signaling the detection of a fluid change in a wellbore operation comprising:\n introducing a first fluid into a wellbore under pressure so that there is a flow of the first fluid in the wellbore; introducing a second fluid into a wellbore under pressure after the first fluid has been introduced so that there is a flow of the second fluid in the wellbore at a first pressure; detecting at least one property that is different between the first fluid and the second fluid at a point located in the wellbore such that a change in the property is detected when second fluid flows past the point after first fluid has flowed past the point; activating a burst disc when the change in the property is detected, wherein the burst disc stops the flow of the second fluid until a second pressure is reached, which is higher than the first pressure; increasing the pressure on one side of the burst disc until the second pressure is reached, wherein the burst disc is ruptured at the second pressure so as to create a pressure pulse in at least one of the first fluid and the second fluid; and detecting the pressure pulse uphole from the burst disc.

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): 0.810219220172755
- 35 USC 102 Novelty (BERT): 0.4966190534793114
- Combined Prediction Score: 0.7788592035034106
- Mean Citation Score: 263.29286
- Max Citation Score: 282.68427
- Similarity Product: 198.057537614522

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