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1. (WO2015199915) PRODUCTION STRING PRESSURE RELIEF SYSTEM
Latest bibliographic data on file with the International Bureau   
Pub. No.: WO/2015/199915 International Application No.: PCT/US2015/033718
Publication Date: 30.12.2015 International Filing Date: 02.06.2015
IPC:
E21B 34/00 (2006.01) ,E21B 34/06 (2006.01) ,E21B 34/08 (2006.01) ,F16K 17/00 (2006.01) ,F16K 17/02 (2006.01) ,F16K 17/04 (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
34
Valve arrangements for boreholes or wells
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
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
08
responsive to flow or pressure of the fluid obtained
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
17
Safety valves; Equalising valves
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
17
Safety valves; Equalising valves
02
opening on surplus pressure on one side; closing on insufficient pressure on one side
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
17
Safety valves; Equalising valves
02
opening on surplus pressure on one side; closing on insufficient pressure on one side
04
spring-loaded
Applicants:
WOODS PETROLEUM LLC [US/US]; 423 East Washington Avenue Chester, MT 59522, US
Inventors:
WOODS, Pete, A.; US
Agent:
TEASE, Antoinette, M.; US
Priority Data:
14/316,64426.06.2014US
Title (EN) PRODUCTION STRING PRESSURE RELIEF SYSTEM
(FR) SYSTÈME DE DÉCOMPRESSION POUR COLONNE DE PRODUCTION
Abstract:
(EN) A production string pressure relief system comprising a hollow cylindrical housing with an outer wall, a first relief valve assembly that is mounted on a first support base that is welded to the outer wall of the housing, and a second relief valve assembly that is mounted on a second support base that is welded to the outer wall of the housing directly opposite the first support base. Each of the first and second relief valve assemblies comprises a valve element that is in the shape of a spherical segment with a spherical sealing face, a cylindrical valve seat with a circular sealing face, and a leaf spring. The leaf spring provides a biasing force that pushes the spherical sealing face of the valve element against the circular sealing face of the valve seat to form a fluid-tight seal when the valve is in a normally closed position.
(FR) Système de décompression pour colonne de production comprenant un logement cylindrique creux doté d'une paroi extérieure, un premier ensemble soupape de décharge qui est monté sur une première base de support qui est soudée à la paroi extérieure du logement, et un second ensemble soupape de décharge qui est monté sur une seconde base de support qui est soudée à la paroi extérieure du logement directement à l'opposé de la première base de support. Chacun des premier et second ensembles soupapes de décharge comprend un élément soupape qui se présente sous la forme d'un segment sphérique avec une face d'étanchéité sphérique, un siège de soupape cylindrique avec une face d'étanchéité circulaire, et un ressort à lames. Le ressort à lames fournit une force de sollicitation qui pousse la face d'étanchéité sphérique de l'élément soupape contre la face d'étanchéité circulaire du siège de soupape pour former un joint étanche lorsque la soupape se trouve dans une position normalement fermée.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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)