PATENT CLAIM ANALYSIS

Application Number: 15771710
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-06
Patent Classification: ["166", "367000"]

Abstract:
A method for forming an offshore well comprises forming a well structure ( 1 ) which includes a lower well portion extending below a seabed and an upper well portion ( 2 ) extending upwardly between the seabed ( 18 ) and a terminating upper end ( 3 ) of the well structure, wherein the well structure comprises a plurality of concentrically arranged tubular strings ( 22 ) and at least one annulus ( 48 ) defined therebetween. The method includes steps for minimising the bending stiffness of the upper well portion. In one example minimising the bending stiffness of the upper well portion may comprise partially filling at least one annulus with cement ( 52 ) to a height which: is intermediate the seabed and the terminating upper end of the well structure. In another example minimising the bending stiffness of the upper well portion may comprise providing a cement disruptor within at least one annulus and locating cement within said at least one annulus to define a cement sheath, wherein the cement disruptor, for example sleeve ( 122 ), reduces resistance of at least a portion of the cement sheath to bending of the upper well portion. In a further example minimising the bending stiffness of the upper well portion may comprise locating a flexible material within at least one annulus; and In a further example minimising the bending stiffness of the upper well portion may comprise varying the bending stiffness along at least one of the plurality of tubular strings.

Claim (Index 17):
The method  claim 1 , comprising installing a third tubular string as part of the well structure, wherein a second annulus is defined between the third tubular string and one of the first and second tubular strings.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 91.0
- Lexical Diversity: 3.14286
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15234344', '14634276', '13676660', '13776788', '15363546']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7900299956741451
- 35 USC 102 Novelty (BERT): 0.4868155518500973
- Combined Prediction Score: 0.7597085512917403
- Mean Citation Score: 231.32616
- Max Citation Score: 250.16747
- Similarity Product: 181.3103456719768

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

Dataset: test