WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2007089933) BARRIER ORIFICE VALVE FOR GAS LIFT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/089933    International Application No.:    PCT/US2007/002964
Publication Date: 09.08.2007 International Filing Date: 01.02.2007
IPC:
E21B 43/12 (2006.01)
Applicants: BAKER HUGHES INCORPORATED [US/US]; P.O. Box 4740, Houston, TX 77210-4740 (US) (For All Designated States Except US)
Inventors: KRITZLER, James, H.; (US).
HOLT, James, H., Jr.; (US).
RANDAZZO, Vic; (US).
CHAPMAN, Walt, R.; (US)
Agent: RIDDLE, J., Albert; Baker Hughes Incorporated, 9100 Emmott Road, Houston, TX 77040 (US)
Priority Data:
11/347,442 03.02.2006 US
Title (EN) BARRIER ORIFICE VALVE FOR GAS LIFT
(FR) VANNE A ORIFICE AVEC OBSTACLE POUR EXTRACTION AU GAZ
Abstract: front page image
(EN)Gas lift valve designs and gas lift systems are described that feature a positive closure mechanism that is highly resistant to significant wear or damage that would result in fluid leakage. A pivotable flapper member is incorporated into a gas lift valve and used as a flow control mechanism. The flapper member provides a positive barrier to fluid flow from the production tubing to the annulus, even after substantial wear or damage.
(FR)L'invention concerne des modèles de vannes pour extraction au gaz et des systèmes d'extraction au gaz comportant un mécanisme de fermeture positive présentant une résistance élevée à une usure significative ou à des dégâts qui conduiraient à des fuites de fluide. Un élément de volet pivotant est intégré à une vanne pour extraction au gaz et utilisé comme mécanisme de régulation du débit. L'élément de volet assure un obstacle positif à l'écoulement du fluide du tubage de production à l'annulaire, même après une usure substantielle ou des dégâts.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)