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1. (WO2010083386) EVANESCENT WAVE DOWNHOLE FIBER OPTIC SPECTROMETER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/083386 International Application No.: PCT/US2010/021159
Publication Date: 22.07.2010 International Filing Date: 15.01.2010
Chapter 2 Demand Filed: 05.11.2010
IPC:
G01V 8/00 (2006.01) ,G01J 3/28 (2006.01) ,E21B 47/00 (2006.01) ,G01N 21/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
8
Prospecting or detecting by optical means
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
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
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
Applicants:
BAKER HUGHES INCORPORATED [US/US]; P.O. Box 4740 Houston, TX 77210-4740, US (AllExceptUS)
DIFOGGIO, Rocco [US/US]; US (UsOnly)
Inventors:
DIFOGGIO, Rocco; US
Agent:
BYNUM, Todd, A.; Baker Hughes Incorporated P.O. Box 4740 Houston, TX 77210-4740, US
Priority Data:
12/354,11715.01.2009US
Title (EN) EVANESCENT WAVE DOWNHOLE FIBER OPTIC SPECTROMETER
(FR) SPECTROMÈTRE À FIBRE OPTIQUE EN FOND DE TROU D'ONDES ÉVANESCENTES
Abstract:
(EN) An apparatus for estimating a property of a fluid downhole, is provided an includes: an optical fiber that receives light emitted from a light source and including an unclad portion adapted for contacting the fluid; a photodetector for receiving optical signals from the portion; and a spectrometer for obtaining an evanescent spectrum of the fluid from the portion. A method and a system are included.
(FR) La présente invention a pour objet un appareil permettant d'évaluer une propriété d'un fond de trou de fluide, qui comprend : une fibre optique qui reçoit la lumière émise depuis une source lumineuse et comprenant une partie sans gaine conçue pour entrer en contact avec le fluide; un photodétecteur pour la réception de signaux optiques en provenance de la partie; et un spectromètre pour l'obtention d'un spectre évanescent du fluide en provenance de la partie. La présente invention concerne également un procédé et un système.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, PE, PG, PH, PL, PT, RO, RS, RU, 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, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, 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: English (EN)
Filing Language: English (EN)
Also published as:
NO20111105BRPI1007337