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1. (WO2018140494) TUBULAR ISOLATION VALVE RESETTABLE LOCK OPEN MECHANISM
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Pub. No.: WO/2018/140494 International Application No.: PCT/US2018/015048
Publication Date: 02.08.2018 International Filing Date: 24.01.2018
IPC:
E21B 34/06 (2006.01) ,F16K 1/20 (2006.01) ,E21B 34/00 (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
34
Valve arrangements for boreholes or wells
06
in wells
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
1
Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
16
with pivoted closure members
18
with pivoted discs or flaps
20
with axis of rotation arranged externally of valve member
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
34
Valve arrangements for boreholes or wells
Applicants:
BAKER HUGHES, A GE COMPANY, LLC [US/US]; 17021 Aldine Westfield Houston, TX 77073, US
Inventors:
MILLER, Wade, A.; US
BURRIS, John, E.; US
Agent:
DUPHORNE, Darin, H.; US
Priority Data:
15/415,32725.01.2017US
Title (EN) TUBULAR ISOLATION VALVE RESETTABLE LOCK OPEN MECHANISM
(FR) MÉCANISME D'OUVERTURE DE VERROU POUVANT ÊTRE RÉARMÉ DE SOUPAPE D'ISOLEMENT TUBULAIRE
Abstract:
(EN) A safety valve features a flow tube operated flapper for the normal open and closed positions that can be obtained with one or two control lines to a principal operating piston. Pressure applied to the piston moves the flow tube to rotate the flapper open behind the flow tube. Release of pressure to the principal piston allows a closure spring to return the flow tube up to let the flapper close. A secondary piston can drive the flow tube with applied pressure through a control line. Cycling the applied pressure in combination with an indexing mechanism allows the flapper to be locked open and then released to normal operation. The pistons act as backup for each other as they both drive the flow tube. The flow tube has a clearance fit to the body in the locked open position to exclude debris from the flapper.
(FR) L'invention concerne une soupape de sécurité caractérisée par un clapet actionné par un tube de circulation pour les positions ouverte et fermée normales qui peuvent être obtenues avec une ou deux lignes de commande d'un piston d'actionnement principal. La pression appliquée au piston déplace le tube de circulation pour faire tourner le clapet ouvert derrière le tube de circulation. La libération de pression appliquée au piston principal permet à un ressort de fermeture de ramener le tube de circulation jusqu'à la fermeture du clapet. Un piston secondaire peut entraîner le tube de circulation avec une pression appliquée par l'intermédiaire d'une ligne de commande. Le cycle de la pression appliquée en combinaison avec un mécanisme d'indexage permet de verrouiller le clapet en position ouverte puis de le libérer en fonctionnement normal. Les pistons servent d'éléments de secours l'un pour l'autre puisqu'ils entraînent tous les deux le tube de circulation. Le tube de circulation a un ajustement avec jeu par rapport au corps dans la position verrouillée ouverte de façon à faire sortir des débris du clapet.
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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)