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. (WO2007081577) METHOD TO DETECT LOW SALINITY INJECTION WATER ENCROACHMENT INTO OIL FORMATIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/081577    International Application No.:    PCT/US2006/049562
Publication Date: 19.07.2007 International Filing Date: 29.12.2006
IPC:
G01V 5/10 (2006.01), E21B 43/20 (2006.01), E21B 43/30 (2006.01), E21B 47/10 (2006.01)
Applicants: SAUDI ARABIAN OIL COMPANY [SA/SA]; 1 Eastern Avenue, 31311 Dhahran (SA) (For All Designated States Except US).
ARAMCO SERVICES COMPANY [US/US]; 9009 West Loop South, Houston, Texas 77210-4535 (US) (For All Designated States Except US).
AL-MURAIKHI, Ahmed, J. [SA/SA]; (SA) (For US Only)
Inventors: AL-MURAIKHI, Ahmed, J.; (SA)
Agent: RHEBERGEN, Constance, Gall; P.o. Box 61389, Houston, Texas 77002-2770 (US)
Priority Data:
11/324,986 03.01.2006 US
Title (EN) METHOD TO DETECT LOW SALINITY INJECTION WATER ENCROACHMENT INTO OIL FORMATIONS
(FR) PROCEDE DE DETECTION DE L'ENVAHISSEMENT DES EAUX D'INJECTION A BASSE SALINITE DANS DES FORMATIONS PETROLIFERES
Abstract: front page image
(EN)The method comprises the steps of : introducing acid into the hydrocarbon-producing wellbore at a pressure substantially lower than that pressure required to fracture the formation, obtaining primary logging of the formation utilizing neutron logging equipment to establish a baseline reading after the introduction of the acid prior to injection of water; injecting water into the formation through an injector well after establishing the baseline reading; obtaining secondary logging of the formation utilizing neutron logging equipment after the injection of water to establish a post-flood reading, identifying of differential between the post-flood reading and the baseline reading such that the differential is operable to identify low salinity water encroachment. Embodiment particularly directed to horizontal wellbores are also disclosed.
(FR)La présente invention concerne le domaine de la surveillance d'injection des eaux dans un environnement aquatique de basse salinité dans une formation souterraine. En particulier, le procédé de l'invention concerne la détection de l'envahissement des eaux de basse salinité dans des formations pétrolifères. La présente invention concerne des moyens qui permettent d'obtenir une information importante concernant le mouvement des eaux dans un gisement de pétrole.
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)