PATENT CLAIM ANALYSIS

Application Number: 16174715
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["175", "026000"]

Abstract:
The static push-the-bit articulated high-built-rate rotary steerable tool has the main body of a non-rotary measurement and control unit articulated with the main body of a non-rotary actuator, rather than an integral structure. Due to the fact that the drilling tool is easy to bend in a wellbore, the bending stress in an upper portion of the steerable tool is low, and the consumption of the pushing force for bending deformation of the drilling tool is minimized. Since the steering sleeve around the main body of a load-bearing actuator only slides along the well wall in an axial direction without rotational friction there-between, the service life of the steering sleeve is long. Besides, since hydraulic pressure is used instead of pressure difference of mud to act on the pistons to form the pushing force, the pushing force is greatly improved, and the sealing life of the pistons is longer.

Claim (Index 10):
A method for controlling a static push-the-bit articulated high-built-rate rotary steerable tool which employs the static push-the-bit articulated high-built-rate rotary steerable tool according to  claim 1 , comprising:\n receiving a current target tool face as a target execution instruction, by a central control circuit; acquiring signals from acceleration and fluxgate sensors, by the central control circuit, to calculate a current tool face; calculating a target steering force vector according to the target tool face, and decomposing the target steering force vector into three separate hydraulic pressures, by a central control circuit system; transmitting hydraulic pressure commands to three sets of independent motor controllers, which drive three sets of independent motor pump hydraulic modules respectively, and acquiring operating pressures of hydraulic systems and controlling the operating pressures by closed-loop control in real-time at high precision, so that the current steering force vector approaches to the target steerable force vector and is maintained at the target steering force vector all the time; acquiring and monitoring a current gravitational tool face value in real time, by the central control circuit system, and, if the current gravitational tool face value varies, recalculating the target steering force vector and decomposing the recalculated target steering force vector into three separate hydraulic pressures, by the central control circuit system; and driving the three sets of independent motor pump hydraulic modules respectively by the three sets of independent motor controllers, and acquiring the operating pressures of the hydraulic systems and controlling the operating pressures by closed-loop control in real time at high precision, so that the current steering force vector approaches to the reassigned target steering force vector and is maintained at the target steering force vector all the time; and controlling a drill bit under the action of the target steering force vector all the time to drive a well according to a required wellbore trajectory.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 1.90476
- Patent Class: 175.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13213354', '14989571', '16158156', '11127606', '14989682']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.720627338783225
- 35 USC 102 Novelty (BERT): 0.4929470705307974
- Combined Prediction Score: 0.6978593119579822
- Mean Citation Score: 287.530546
- Max Citation Score: 296.4951
- Similarity Product: 218.926286097014

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