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1. (WO2019046862) APPARATUS AND METHOD FOR INSPECTING OF A MULTI-BARRIER WELLBORE
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Pub. No.: WO/2019/046862 International Application No.: PCT/US2018/051192
Publication Date: 07.03.2019 International Filing Date: 14.09.2018
IPC:
E21B 47/10 (2006.01) ,G01N 23/02 (2006.01)
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
10
Locating fluid leaks, intrusions or movements
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23
Investigating or analysing materials by the use of wave or particle radiation not covered by group G01N21/ or G01N22/159
02
by transmitting the radiation through the material
Applicants:
GENERAL ELECTRIC COMPANY [US/US]; 1 River Road Schenectady, NY 12345, US
Inventors:
KASTEN, Ansas, Matthias; US
CILIA, Juan, Pablo; US
PRICE, John, Scott; US
ROSS, William, Robert; US
WANG, Chengbao; US
MANDAL, Sudeep; US
Agent:
POLLANDER, Laura L.; US
MIDGLEY, Stephen, G.; US
WINTER, Catherine, J.; US
POLLANDER, Luara, L.; US
ZHANG, Douglas, D.; US
Priority Data:
15/688,10228.08.2017US
Title (EN) APPARATUS AND METHOD FOR INSPECTING OF A MULTI-BARRIER WELLBORE
(FR) APPAREIL ET PROCÉDÉ D'INSPECTION D'UN PUITS DE FORAGE À BARRIÈRES MULTIPLES
Abstract:
(EN) An apparatus for inspecting integrity- of a multi-barrier wellbore is described. The apparatus includes at least one source to generate radiation to impinge a target volume of the wellbore. The apparatus includes a source collimator having a plurality of alternating blocking channels and passing channels to direct radiation to impinge the target volume, such that the radiation directed from each passing channel forms a plurality of field of views extending radially into the target volume. The apparatus further includes at least one detector to receive backscatter rays arising from each respective field of view from the plurality of field of views and to generate an image representative of an inspected portion of the wellbore. The apparatus is useful for inspecting very small volumes in the multiple barriers of the wellbore and determine the integrity of the wellbore based on the different densities in the image of the inspected portion.
(FR) L'invention concerne un appareil d'inspection de l'intégrité d'un puits de forage à barrières multiples. L'appareil comprend au moins une source permettant de générer un rayonnement pour frapper un volume cible du puits de forage. L'appareil comprend un collimateur de source ayant une pluralité de canaux de blocage et de canaux de passage alternés pour diriger un rayonnement en vue de frapper le volume cible, de telle sorte que le rayonnement dirigé à partir de chaque canal de passage forme une pluralité de champs de vision s'étendant radialement dans le volume cible. L'appareil comprend en outre au moins un détecteur pour recevoir des rayons de rétrodiffusion provenant de chaque champ de vision respectif à partir de la pluralité de champs de vision et pour générer une image représentative d'une partie inspectée du puits de forage. L'appareil est utile pour inspecter de très petits volumes dans les multiples barrières du puits de forage et pour déterminer l'intégrité du puits de forage sur la base des différentes densités dans l'image de la partie inspectée.
front page image
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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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)