PATENT CLAIM ANALYSIS

Application Number: 15996282
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["166", "369000"]

Abstract:
A downhole isolation tool for insertion in a wellbore and seated engagement to a downhole assembly, for allowing, when a sliding sleeve thereof is slidably positioned in a first position and when coupled to a lower end of said pump apparatus, fluids within a hydrocarbon formation to be drawn through such tool and allowed to pass to the pump apparatus for pumping uphole, and when such sliding sleeve is positioned in a second position and decoupled from said lower end of the pump assembly, for preventing said fluids from passing therethrough and uphole.

Claim (Index 12):
A method for preventing at least one of downhole fluids and gases in a hydrocarbon formation from reaching surface upon removal of a pump apparatus from a wellbore, using a downhole tool comprising an elongate sliding sleeve and an elongate seal sub, comprising the steps of:\n (a) providing an elongate sliding sleeve having an elongate cavity therewithin separated into an upper cavity and a lower cavity by a seal member that prevents fluid communication between the upper and lower cavity, said upper cavity having a first and second aperture therein and said lower cavity having a third aperture therein; (b) providing an elongate seal sub having a bore therethrough and a bypass channel situated along said bore; (c) slidably inserting said elongate sliding sleeve within said bore of said seal sub to a first position where said second and third apertures, and said seal member, are aligned with said bypass channel situated within said bore of said seal sub to allow communication of fluids from said lower cavity to said upper cavity of said sliding sleeve by bypassing the seal member via said bypass channel; (d) either before or after step (c), releasably coupling, via releasable latch means on an upper end of said sliding sleeve, said downhole tool to a lower end of a pump apparatus; (e) inserting said downhole tool and pump apparatus downhole into a wellbore; (f) sealingly engaging said downhole tool and pump apparatus to an assembly in said wellbore via a seating means situated on said seal sub; (g) operating said pump apparatus; (h) raising said pump apparatus and causing said sliding sleeve to be slidably re-located upwardly in said bore from said first position to a second position where said first aperture means and said seal member are positioned above said bypass channel in said bore of said seal sub, to thereby prevent communication of fluids from said lower cavity to said upper cavity of said sliding sleeve; (i) pulling said pump apparatus upward so as to releasibly dis-engage latch means on said sliding sleeve from said lower end of said pump apparatus; and (j) removing said pump apparatus from said wellbore.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 94.0
- Lexical Diversity: 1.90385
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13741034', '14620037', '14603193', '14178056', '14637114']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7721136609388325
- 35 USC 102 Novelty (BERT): 0.5730392412796151
- Combined Prediction Score: 0.7522062189729107
- Mean Citation Score: 325.475496
- Max Citation Score: 472.43613
- Similarity Product: 439.1801747110712

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