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1. (WO2019066930) PROCESS AUTOMATION OPTIMIZES THE PROCESS OF PLACING A DRILL BIT ON THE BOTTOM OF THE WELLBORE
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Pub. No.: WO/2019/066930 International Application No.: PCT/US2017/054438
Publication Date: 04.04.2019 International Filing Date: 29.09.2017
IPC:
E21B 45/00 (2006.01) ,E21B 7/00 (2006.01) ,E21B 43/26 (2006.01) ,E21B 44/00 (2006.01) ,E21B 44/04 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
45
Measuring the drilling time or rate of penetration
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
7
Special methods or apparatus for drilling
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
25
Methods for stimulating production
26
by forming crevices or fractures
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
44
Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
44
Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
02
Automatic control of the tool feed
04
in response to the torque of the drive
Applicants:
NATIONAL OILWELL VARCO, INC. [US/US]; 7909 Parkwood Circle Drive Houston, TX 77036, US
Inventors:
HANFORD, Ryan, J.; US
MULLIN, Christopher, P.; US
FACKER, Benjamin; US
WONG, Cole; US
OCEGUEDA-HERNANDEZ, Francisco; US
Agent:
FRANCO, Katherine, A.; US
Priority Data:
Title (EN) PROCESS AUTOMATION OPTIMIZES THE PROCESS OF PLACING A DRILL BIT ON THE BOTTOM OF THE WELLBORE
(FR) AUTOMATISATION DE PROCESSUS OPTIMISANT LE PROCESSUS DE PLACEMENT D'UN TRÉPAN AU FOND DU PUITS DE FORAGE
Abstract:
(EN) Tagging bottom utilizing an automated control system and downhole tools may include determining, by a computer processor, that a drill bit has reached a predetermined distance from a bottom of a wellbore, in response to determining that the bit has reached the predetermined depth, transmitting a rate of penetration set point to reduce a lowering speed of the drill bit, directing the drill bit based on the rate of penetration, determining, by the computer processor, that the rate of penetration is stable, in response to the determining that the rate of penetration has stabilized, automatically taring a surface weight on the drill bit and a differential pressure, and in response to determining that the bit is within a predetermined off bottom range, monitoring for a true bottom based on one or more parameter triggers.
(FR) Dans le cadre de la présente invention, le marquage du fond en utilisant un système de commande automatisé et des outils en profondeur de forage peut comprendre la détermination, par un processeur d'ordinateur, qu'un trépan a atteint une distance prédéterminée à partir d'un fond d'un puits de forage, en réponse à la détermination du fait que le trépan a atteint la profondeur prédéterminée, la transmission d'un taux de point de consigne de pénétration pour réduire une vitesse d'abaissement du trépan, l'orientation du trépan sur la base du taux de pénétration, la détermination, par le processeur d'ordinateur, que le taux de pénétration est stable, en réponse à la détermination du fait que le taux de pénétration s'est stabilisé, le tarage automatique d'un poids de surface sur le trépan et d'une pression différentielle, et, en réponse à la détermination du fait que le trépan se trouve au sein d'une plage prédéterminée séparée du fond, la surveillance d'un vrai fond sur la base d'un ou de plusieurs déclencheurs de paramètre.
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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)