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1. (WO2015126723) MEASURING BEHIND CASING HYDRAULIC CONDUCTIVITY BETWEEN RESERVOIR LAYERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/126723 International Application No.: PCT/US2015/015610
Publication Date: 27.08.2015 International Filing Date: 12.02.2015
IPC:
E21B 47/00 (2012.01) ,E21B 49/00 (2006.01) ,G01V 9/00 (2006.01) ,G01V 99/00 (2009.01)
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
47
Survey of 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
49
Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
9
Prospecting or detecting by methods not provided for in groups G01V1/-G01V8/115
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
99
Subject matter not provided for in other groups of this subclass
Applicants:
SAUDI ARABIAN OIL COMPANY [SA/SA]; 1 Eastern Avenue Dhahran, 31311, SA
ARAMCO SERVICES COMPANY [US/US]; 9009 West Loop South Houston, TX 77210-4535, US (AG)
Inventors:
RAHMAN, Noor, M. Anisur; SA
Agent:
KIMBALL, Albert, B.; US
Priority Data:
14/182,43018.02.2014US
Title (EN) MEASURING BEHIND CASING HYDRAULIC CONDUCTIVITY BETWEEN RESERVOIR LAYERS
(FR) MESURE DE LA CONDUCTIVITÉ HYDRAULIQUE DERRIÈRE LE TUBAGE ENTRE DES COUCHES DE RÉSERVOIR
Abstract:
(EN) A measure of the hydraulic conductivity, Fc, is obtained to characterize the leaky medium behind well casing between adjacent hydrocarbon producing layers is a subsurface reservoir. The value of Fc can be utilized in estimating the rate of flow from a secondary reservoir layer contributing to the total production through the wellbore based on the respective well pressures at a given time. The well pressures are calculated from a model based on the individual properties of and the amounts of fluid produced from these layers. Once there is a reasonable match between the calculated pressures and the measured pressures during a transient test, the parameters that have been used in calculating the model pressures are stored as characteristic parameters of the reservoir system. Such characteristic parameters are utilized in assessing the commercial producibility of the reservoirs.
(FR) Selon l'invention, une mesure de la conductivité hydraulique, F c , est obtenue pour caractériser le milieu de fuite derrière un tubage de puits entre des couches de production d'hydrocarbures qui constitue un réservoir souterrain. La valeur de F c peut être utilisée dans l'estimation de la vitesse d'écoulement d'une couche réservoir secondaire contribuant à la production totale à travers le puits de forage sur la base des pressions de puits respectives à un instant donné. Les pressions de puits sont calculées à partir d'un modèle basé sur les propriétés individuelles d'un fluide et les quantités de ce fluide produit à partir de ces couches. Une fois qu'il y a une correspondance raisonnable entre les pressions calculées et les pressions mesurées pendant un essai transitoire, les paramètres qui ont été utilisées dans le calcul des pressions de modèle, sont stockés en tant que paramètres caractéristiques du système du réservoir. De tels paramètres caractéristiques sont utilisés dans l'évaluation du potentiel de production commercial des réservoirs.
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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)