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 6):
The static push-the-bit articulated high-built-rate rotary steerable tool according to  claim 1 , further comprising a centering connecting shaft ( 11 ), a first circuit ( 9 ) disposed on the rotary mandrel ( 7 ), a central control circuit ( 2 ), and three sets of independent motor pump hydraulic modules ( 1 ); and each set of motor pump hydraulic modules ( 1 ) comprises at least one set of pushing pistons; and\n electric power and communication signals from a MWD are transferred to the first circuit ( 9 ) via the centering connecting shaft ( 11 ), the first circuit ( 9 ) transfers the electric power subjected to high-frequency modulation and the signals subjected to carrier modulation to the central control circuit ( 2 ) via a non-contact electric power transmission transformer ( 3 ), motor controllers in the central control circuit ( 2 ) drive the three sets of independent motor pump hydraulic modules ( 1 ), hydraulic systems in the motor pump hydraulic modules ( 1 ) generate high-pressure oil sources and feed high-pressure oil into the pushing pistons, and vector resultants of three coplanar concurrent force systems are formed by separately controlling the oil pressure acting on each set of pushing pistons, so as to form a resultant force vector, which acts on the inner wall of the second non-rotary steering sleeve ( 12 ) so that the drill bit shaft ( 15 ) is deflected around an articulation point defined by the universal joint ( 13 ) and thereby forms an angle with respect to the axis of the rotary steerable tool; and by controlling the magnitude and direction of the resultant force vector, a lateral force acting on the drill bit is controlled accurately, and thereby the drilling direction of the drill bit is controlled.

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): 0.7203034620471548
- 35 USC 102 Novelty (BERT): 0.4955096723317473
- Combined Prediction Score: 0.697824083075614
- Mean Citation Score: 287.530546
- Max Citation Score: 296.4951
- Similarity Product: 205.9567143597543

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