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1. (WO2018102264) OPPORTUNISTIC SENSOR FUSION ALGORITHM FOR AUTONOMOUS GUIDANCE WHILE DRILLING
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Pub. No.: WO/2018/102264 International Application No.: PCT/US2017/063336
Publication Date: 07.06.2018 International Filing Date: 27.11.2017
Chapter 2 Demand Filed: 27.09.2018
IPC:
G01C 21/08 (2006.01) ,G01V 7/06 (2006.01) ,G01R 33/02 (2006.01) ,G01P 15/18 (2006.01)
G PHYSICS
01
MEASURING; TESTING
C
MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21
Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
04
by terrestrial means
08
involving use of the magnetic field of the earth
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
7
Measuring gravitational fields or waves; Gravimetric prospecting or detecting
02
Details
06
Analysis or interpretation of gravimetric records
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
02
Measuring direction or magnitude of magnetic fields or magnetic flux
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
15
Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
18
in two or more dimensions
Applicants:
HRL LABORATORIES, LLC [US/US]; 3011 Malibu Canyon Road Malibu, CA 90265, US
Inventors:
SORENSON, Logan, D.; US
KABAKIAN, Adour, V.; US
CHANG, David; US
KONA, Keerti, S.; US
WALTER, David, L.; US
WANG, Shuoqin; US
NGUYEN, Hung; US
PERAHIA, Raviv; US
Agent:
TOPE-MCKAY, Cary, R.; US
Priority Data:
15/387,43521.12.2016US
62/427,56129.11.2016US
62/451,01926.01.2017US
Title (EN) OPPORTUNISTIC SENSOR FUSION ALGORITHM FOR AUTONOMOUS GUIDANCE WHILE DRILLING
(FR) ALGORITHME DE FUSION DE CAPTEUR OPPORTUNISTE POUR GUIDAGE AUTONOME PENDANT UN FORAGE
Abstract:
(EN) Described is a system for estimating a trajectory of a borehole. The- system processes signals of sensor streams obtained from art inertial sensor system. Using the set of processed signals, the system determines whether a drill is in a survey mode state or a continuous mode state, and a measured depth of the borehole is determined. A set of survey mode positioning algorithms is applied when the drill, is stationary. A set of continuous mode navigation algorithms is applied when the drill is non-stationary. Using at least one Kalrnan filter, results of the set of survey mode positioning algorithms and the set of continuous mode navigation algorithms are combined. An estimate of a borehole trajectory and corresponding ellipse of uncertainty (EOU) is generated using the combined results.
(FR) La présente invention concerne un système pour estimer une trajectoire d’un trou de forage. Le système traite des signaux de flux de capteurs obtenus à partir d’un système de capteur inertiel de l’état de l’art. Au moyen de l’ensemble de signaux traités, le système détermine si un foret est dans un état de mode de relevé ou un état de mode continu, et une profondeur mesurée du trou de forage est déterminée. Un ensemble d’algorithmes de positionnement de mode de relevé est appliqué lorsque le foret est stationnaire. Un ensemble d’algorithmes de navigation en mode continu est appliqué lorsque le foret est non stationnaire. Au moyen d’au moins un filtre de Kalrnan, les résultats de l’ensemble d’algorithmes de positionnement de mode de relevé et de l’ensemble d’algorithmes de navigation en mode continu sont combinés. Une estimation d’une trajectoire de trou de forage et une ellipse d’incertitude (EOU) correspondante est générée au moyen des résultats combinés.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)