SG11201805499TA - Determining the deterioration of oils using fluorescence rise-time - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 111111110111101110101011111010111110111011101011111101101111101111101111011111 International Bureau ... .... ..Yjd ..... ...,/ (10) International Publication Number (43) International Publication Date WO 2017/127515 Al 27 July 2017 (27.07.2017) WIPO I PCT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every GO1N 21/64 (2006.01) G01N 33/28 (2006.01) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (21) International Application Number: BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, PCT/US2017/014091 DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (22) International Filing Date: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, 19 January 2017 (19.01.2017) KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (25) Filing Language: English NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (26) Publication Language: English 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, (30) Priority Data: ZA, ZM, ZW. 62/280,439 19 January 2016 (19.01.2016) US 15/248,578 26 August 2016 (26.08.2016) US (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71) Applicant: SAUDI ARABIAN OIL COMPANY GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, [SA/SA]; 1 Eastern Avenue, Dhahran, 31311 (SA). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (71) Applicant (for AG only): ARAMCO SERVICES COM- TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, PANY [US/US]; 9009 West Loop South, Houston, TX 77096 (US). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, (72) Inventors: HEGAZI, Ezzat; Saudi Aramco, P. 0. Box GW, KM, ML, MR, NE, SN, TD, TG). 5382, Dhahran, 31311 (SA). CUNNINGHAM, Vincent; Published: Saudi Aramco, P. 0. Box 5382, Dhahran, 31311 (SA). NOUR, Maha; Saudi Aramco, P. 0. Box 5382, Dhahran, — with international search report (Art. 21(3)) 31311 (SA). (74) Agent: RHEBERGEN, Constance, Gall; Bracewell LLP, P. 0. Box 61389, Houston, TX 77208-1389 (US). (54) Title: DETERMINING THE DETERIORATION OF OILS USING FLUORESCENCE RISE-TIME 120 7 -100 106 I 7°8 M 102 116 - kin ,—, kin IN ei Il L r--- (57) : Methods, media, and devices :::;) fluorescence rise-time are provided. A sample ei light source such a laser to induce fluorescence in the oil sample. The induced fluorescence O ing detecting by a photodiode. The relative intensity of the fluorescence may be ,1 . used to determine the fluorescence rise-time .,- cence rise-time. The determined viscosity may be compared to viscosity threshold value to determine the deterioration of the oil. 4 112 118 • for determining the deterioration of an oil from a machine may be obtained. The of the oil sample. The viscosity the oil sample - .'I 110 of of FIG. an oil by determining may measured over 1 oil be may 104 the viscosity of the oil from sample may be irradiated using a filtered and collimated before be - a time period at a sample rate and be determined from the fluores -