PATENT CLAIM ANALYSIS

Application Number: 15956565
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["405", "169000"]

Abstract:
Method of stopping and restarting production in an undersea bottom-to-surface connection production pipe having a first pipe portion on the sea bottom from a well head to the bottom end of a second pipe portion extending to a ship or floating. When production is stopped, at least the first pipe portion is filled with a depressurized production fluid. Thereafter the following steps are performed: e1) forming a gel from two reagents in a first gel-forming chamber on the sea bottom; e2) sending a quantity of separator gel into the first pipe portion that pushes the cold fluid contained in the first pipe portion to the second pipe portion, prior to closing the first chamber; and then; e3) starting production, the gel forming physical separation and thermal and chemical isolation between firstly the production fluid and secondly a production fluid within the first production pipe portion.

Claim (Index 1):
A method of stopping and restarting production in an undersea bottom-to-surface connection production pipe comprising a first pipe portion resting on the sea bottom from a well head to the bottom end of a second pipe portion going up to a ship or floating support on the surface, in which method, when production is stopped, at least said first pipe portion is filled with a depressurized production fluid, the method being characterized in that the following restarting steps are performed:\n e1) forming a gel from two reagents in a first gel-forming chamber on the sea bottom, said first chamber communicating with the end of the first pipe portion that is closest to the well head, said first chamber preferably being formed by a pipe segment in situ on the sea bottom, having its end leading to the proximity of the end of the first pipe portion resting on the sea bottom that is closest to the well head; and e2) sending a quantity of said gel into the first pipe portion from said first chamber forming a separator gel segment that pushes the cold fluid contained in the first pipe portion to the second pipe portion, prior to closing said first chamber; and then e3) starting production by sending said production fluid from the production fluid well into the first pipe portion behind said separator gel segment, said production fluid pushing said gel segment into said bottom-to-surface connection pipe towards its top, said gel forming a physical separation and also thermal isolation between firstly the production fluid behind said gel segment within the first pipe portion and secondly a fluid that has been at least partially degassed ahead of said gel segment within said first production pipe portion.

Metadata:
- Claim Count in Document: 80.0
- Percentile: 91.0
- Lexical Diversity: 2.0
- Patent Class: 405.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13805516', '10548856', '13885088', '12933837', '12596210']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7023120266965136
- 35 USC 102 Novelty (BERT): 0.4959350951458197
- Combined Prediction Score: 0.6816743335414442
- Mean Citation Score: 171.45117000000005
- Max Citation Score: 176.1292
- Similarity Product: 113.98521019554138

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