PATENT CLAIM ANALYSIS

Application Number: 15908419
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["166", "335000"]

Abstract:
A method for casing a subsea wellbore includes running a tieback casing string into the subsea wellbore using a workstring including first, second, and third wiper plugs. The method further includes: launching a first release plug or tag into the workstring; pumping cement slurry into the workstring, thereby driving the first release plug or tag along the workstring; after pumping the cement slurry, launching a second release plug or tag into the workstring; and pumping chaser fluid into the workstring, thereby driving the release plugs or tags and cement slurry through the workstring. The release plugs or tags engage and release the respective wiper plugs from the workstring. The first wiper plug or release plug ruptures, thereby allowing the cement slurry to flow therethrough. The method further includes: stabbing the tieback casing string into a liner string; and retrieving the workstring, the workstring still including the third wiper plug.

Claim (Index 20):
The plug release system of  claim 19 , wherein each of the first wiper plug, the second wiper plug, and the third wiper plug include:\n a finned seal; a plug body; a latch sleeve having a collet formed in an upper end thereof; and a lock sleeve having a seat and a seal bore formed therein, each lock sleeve movable between an upper position and lower position, the lock sleeve releasably restrained in the upper position by a shearable fastener.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 88.0
- Lexical Diversity: 2.98214
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14639309', '14710090', '14083021', '14154392', '15357732']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.853803387674058
- 35 USC 102 Novelty (BERT): 0.5933756922178828
- Combined Prediction Score: 0.8277606181284404
- Mean Citation Score: 439.592394
- Max Citation Score: 597.9416
- Similarity Product: 457.332152233696

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

Dataset: test