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1. (WO2018140462) HYDRAULICALLY ACTUATED SAFETY SUB
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Pub. No.: WO/2018/140462 International Application No.: PCT/US2018/014997
Publication Date: 02.08.2018 International Filing Date: 24.01.2018
IPC:
E21B 17/05 (2006.01) ,E21B 17/06 (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
17
Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
02
Couplings; Joints
04
between rod and bit, or between rod and rod
05
Swivel joints
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
17
Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
02
Couplings; Joints
04
between rod and bit, or between rod and rod
06
Releasing-joints, e.g. safety joints
Applicants:
ENVENTURE GLOBAL TECHNOLOGY, INC. [US/US]; 15995 N Barkers Landing, Suite 350 Houston, Texas 77079, US
Inventors:
BODDEDA, Nanda Kishore; US
BENNETT, Frederick Cornell; US
Agent:
FORINASH, Derek V.; US
Priority Data:
62/449,86624.01.2017US
Title (EN) HYDRAULICALLY ACTUATED SAFETY SUB
(FR) RACCORD DOUBLE FEMELLE DE SÉCURITÉ À ACTIONNEMENT HYDRAULIQUE
Abstract:
(EN) A safety joint having threads with a first handedness, for example right-handed threads, to connect the safety joint to an upper drill pipe portion and a lower drill pipe portion. The safety joint includes a releasable threaded connection having a second handedness inverse of the first handedness. The safety joint also includes a hydraulically actuated piston sleeve that locks rotation across the releasable threaded connection. Disconnecting the upper drill pipe portion from the lower drill pipe portion is achieved by moving the piston sleeve to a position wherein the piston sleeve does not transmit rotation across the releasable threaded connection, and rotating the upper drill pipe portion in the first handedness direction to unscrew the releasable threaded connection.
(FR) L'invention concerne un raccord de sécurité comprenant des filetages ayant un premier sens de rotation, par exemple des filetages à droite, pour relier le raccord de sécurité à une portion de tige de forage supérieure et à une portion de tige de forage inférieure. Le raccord de sécurité comprend une connexion filetée libérable ayant un deuxième sens de rotation inverse du premier sens de rotation. Le raccord de sécurité comprend également un manchon de piston actionné hydrauliquement qui verrouille la rotation à travers la connexion filetée libérable. La déconnexion de la portion de tige de forage supérieure de la portion de tige de forage inférieure est obtenue en déplaçant le manchon de piston jusqu'à une position dans laquelle le manchon de piston ne transmet pas de rotation à travers la connexion filetée libérable, et en faisant tourner la portion de tige de forage supérieure dans le premier sens de rotation pour dévisser la connexion filetée libérable.
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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)