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1. (WO2013048291) METHOD FOR DETERMINING THE ACOUSTIC CHARACTERISITICS OF A MUD FILTER CAKE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/048291    International Application No.:    PCT/RU2012/000793
Publication Date: 04.04.2013 International Filing Date: 28.09.2012
IPC:
E21B 49/00 (2006.01), G01N 29/00 (2006.01)
Applicants: ZHARNIKOV, Timur Vyacheslavovich [RU/RU]; (RU) (US only).
FUKUHARA, Masafumi [JP/RU]; (RU) (US only).
ZAZOVSKY, Alexander [GB/US]; (US) (US only).
GARCIA-OSUNA, Fernando [MX/US]; (US) (US only).
SCHLUMBERGER HOLDINGS LIMITED; PO Box 71, Craigmuir Chamber Road Town, Tortola (VG) (GB, JP, NL only).
SCHLUMBERGER TECHNOLOGY B.V. [NL/NL]; Parkstraat 83-89 NL-2514 JG The Hague (NL) (AL, AU, AZ, BG, CO, CZ, DE, DK, GQ, GR, HU, ID, IE, IL, IT, KR, KZ, LT, MX, MY, NO, NZ, OM, PL, RO, RU, SI, SK, TD, TM, TN, TR, TT, UZ, ZA only).
SCHLUMBERGER CANADA LIMITED [CA/CA]; 7th Floor, 525-3rd Avenue S.W., Eau Claire Place 1 Calgary, Alberta, Т2P ОG4 (CA) (CA only).
SERVICES PETROLIERS SCHLUMBERGER [FR/FR]; 42 rue Saint Dominque F-75007 Paris (FR) (FR only).
PRAD RESEARCH AND DEVELOPMENT LIMITED [JP/RU]; Craigmuir Chambers, PO Box 711, Road Town Tortola (VG) (AE, AG, AM, AO, AT, BA, BB, BE, BF, BH, BJ, BN, BR, BW, BY, BZ, CF, CG, CH, CI, CL, CM, CN, CR, CU, CY, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GD, GE, GH, GM, GN, GT, GW, HN, HR, IN, IS, KE, KG, KM, KN, KP, LA, LC, LK, LR, LS, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MZ, NA, NE, NG, NI, PA, PE, PG, PH, PT, QA, RS, RW, SC, SD, SE, SG, SL, SM, SN, ST, SV, SY, SZ, TG, TH, TJ, TZ, UA, UG, VC, VN, ZM, ZW only)
Inventors: ZHARNIKOV, Timur Vyacheslavovich; (RU).
FUKUHARA, Masafumi; (RU).
ZAZOVSKY, Alexander; (US).
GARCIA-OSUNA, Fernando; (US)
Agent: ARKHIPOVA, Vera Nikolaevna; Technology Company Schlumberger Pudovkina str., 13 Moscow, 119285 (RU)
Priority Data:
2011139727 30.09.2011 RU
Title (EN) METHOD FOR DETERMINING THE ACOUSTIC CHARACTERISITICS OF A MUD FILTER CAKE
(FR) PROCÉDÉ POUR DÉTERMINER LES CARACTÉRISTIQUES ACOUSTIQUES D'UNE CROÛTE ARGILEUSE
(RU) СПОСОБ ОПРЕДЕЛЕНИЯ АКУСТИЧЕСКИХ ХАРАКТЕРИСТИК ГЛИНИСТОЙ КОРКИ
Abstract: front page image
(EN)In order to determine the acoustic characteristics of a mud filter cake in a well, the response to a low-frequency non-oscillating pressure signal is recorded by at least one acoustic sensor. At least one characteristic of the transient process of a change in pressure is determined from the signal produced, the thickness of the mud filter cake is determined and, on the basis of the values produced, at least one of the following values is determined: the piezoconductivity of the mud filter cake and the mobility of a fluid.
(FR)Pour déterminer les caractéristiques acoustiques d'une croûte argileuse dans un puits, on enregistre au moyen d'au moins un capteur acoustique la réponse à un signal de pression basse fréquence sans oscillations. Sur la base du signal obtenu on détermine au moins une caractéristique du processus de transition de changement de pression, on détermine l'épaisseur de la croûte argileuse et, sur la base des valeurs obtenues, on détermine au moins une parmi les valeurs suivantes: la piézoconductivité de la croûte argileuse et la mobilité du fluide.
(RU)Для определения акустических характеристик глинистой корки в скважине по меньшей мере одним акустическим датчиком регистрируют отклик на низкочастотный неколеблющийся сигнал давления. Из полученного сигнала определяют по меньшей мере одну характеристику переходного процесса изменения давления, определяют толщину глинистой корки и на основе полученных значений определяют по меньшей мере одно из следующих значений: пьезопроводность глинистой корки и подвижность флюида.
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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language: Russian (RU)
Filing Language: Russian (RU)