PATENT CLAIM ANALYSIS

Application Number: 15760171
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["166", "299000"]

Abstract:
A “back-off” tool comprises a magazine cylinder having one distal end of a long mast rod secured to the lower end-face of a magazine cylinder. The magazine cylinder is attached to an electrically detonated firing head. A first plurality of blind hole cavities penetrate the magazine cylinder end-face around the mast rod junction. A second plurality of elongated detonation cord ends are inserted into high temperature grease filled magazine cylinder cavities. From the cavities, the detonation cord lengths are bound to the rod surface along the rod length by non-metallic cord. The tool assembly is secured to the end of a wireline or tubing string for downhole placement and detonation.

Claim (Index 18):
A method of releasing a threaded pipe joint within a pipe string comprising the steps of:\n assembling a back-off tool having a firing head, a detonator magazine comprising an explosive booster initiated by said firing head and a plurality of cavities, a mast rod having one end secured to said detonator magazine and a plurality of elongated detonation cords; inserting one distal end of each detonator cord into a respective cavity of said detonator magazine for location within detonation proximity of said explosive booster; securing a remaining length of said detonator cords along a length of said mast rod; positioning said back-off tool within a flow bore of said pipe string and adjacent to said threaded pipe joint within said pipe string; applying a mild torque in a thread separation direction at one end of said pipe string; and detonating said explosive booster.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 1.72464
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15759776', '14858816', '15256281', '14120409', '13317657']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7743562976850481
- 35 USC 102 Novelty (BERT): 0.519526979888383
- Combined Prediction Score: 0.7488733659053816
- Mean Citation Score: 285.8624779999999
- Max Citation Score: 346.9574
- Similarity Product: 282.19530655426985

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