PATENT CLAIM ANALYSIS

Application Number: 15922646
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["166", "298000"]

Abstract:
A system including a gripping tool and a rotary cutting tool may be used to grip a section of casing while cutting through a lower portion of the casing in a single trip. The gripping tool includes a mandrel with a flow bore extending therethrough, a slip actuator received on the mandrel, at least one slip corresponding to the slip actuator, a housing disposed around at least a proximal end of the mandrel, and a collet assembly disposed proximate the at least one slip. The rotary cutting tool is coupled to the mandrel. The gripping tool also includes a bearing assembly that enables the mandrel and the rotary cutting tool to rotate while the at least one slip is remains stationary engaging an interior wall of a casing. The system may include a hydraulic power section to help with setting the slips and removing the cut casing from the wellbore.

Claim (Index 16):
A method of removing a section of casing from a cased well, comprising:\n providing a casing pulling tool comprising:\n a mandrel with a flow bore extending therethrough; \n a slip actuator received on the mandrel; \n at least one slip corresponding to the slip actuator; \n a housing disposed around the mandrel, wherein the housing comprises a slip cage portion having at least one window through which the at least one slip can be radially outwardly deployed; and \n at least one piston coupled to the mandrel, wherein the piston is disposed within and axially movable with respect to the housing, wherein the piston is captured in a cylinder of the housing defined by opposing annular stops positioned at different axial locations within the housing, and wherein the piston is movable in a proximal direction along with the coupled mandrel in response to pressure being applied within the flow bore of the mandrel; \n connecting a rotary cutting tool to a distal end of the mandrel; displacing the mandrel in an axial direction relative to the housing to deploy the at least one slip to engage and grip and section of casing; rotating the mandrel to operate the cutting tool to cut the casing as the slide member, the at least one slip, and the reinforced slip actuator remain stationary and lodged in gripping engagement with the section of casing; cutting the casing to provide a detached section of casing gripped by the casing pulling tool; hydraulically pressurizing the flow bore of the mandrel to move the piston and the attached mandrel in the proximal direction, thereby pulling upward on the slip actuator, and the at least one slip to remove the section of casing from a cement jacket that surrounds the casing; and withdrawing the casing pulling tool, the cutting tool, and the detached section of casing from the well.

Metadata:
- Claim Count in Document: 51.0
- Percentile: 90.0
- Lexical Diversity: 2.14865
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14930182', '14989925', '15169339', '14741241', '12414645']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7912177067035571
- 35 USC 102 Novelty (BERT): 0.5694465333443194
- Combined Prediction Score: 0.7690405893676333
- Mean Citation Score: 365.99728
- Max Citation Score: 497.2573
- Similarity Product: 390.4527745779277

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