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1. (WO2018142165) IMPROVEMENTS IN OR RELATING TO DOWNHOLE MEASUREMENTS
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Pub. No.: WO/2018/142165 International Application No.: PCT/GB2018/050331
Publication Date: 09.08.2018 International Filing Date: 06.02.2018
IPC:
E21B 47/08 (2012.01) ,G01B 5/12 (2006.01) ,G01V 11/00 (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
08
Measuring diameters or related dimensions at the borehole
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
5
Measuring arrangements characterised by the use of mechanical means
08
for measuring diameters
12
internal diameters
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
11
Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/-G01V9/147
Applicants:
READ CASED HOLE LIMITED [GB/GB]; Viking House 1 Claymore Avenue Offshore Technology Park Bridge of Don Aberdeen Aberdeenshire AB23 8GW, GB
Inventors:
WADDINGTON, Mark; GB
ADDARIO, Maurillio; GB
Agent:
MURGITROYD & COMPANY; Scotland House 165-169 Scotland Street Glasgow Strathclyde G5 8Pl, GB
Priority Data:
1701894.606.02.2017GB
Title (EN) IMPROVEMENTS IN OR RELATING TO DOWNHOLE MEASUREMENTS
(FR) PERFECTIONNEMENTS APPORTÉS OU RELATIFS À DES MESURES DE FOND DE TROU
Abstract:
(EN) A caliper finger for use as part of a multi-finger caliper logging tool has a body formed substantially of a first material and a finger tip formed substantially of a second material which has greater mechanical durability than the first material. The first material and second material are fused directly together at a joint between the first material and the second material. The finger tip may comprise a plurality of successively-fused layers of the second material, which can then be machined at its outer surface after fusion of the plurality of layers. The second material may be a composite material of tungsten carbide combined with a base material in which the tungsten carbide is embedded and securely bonded to the finger.
(FR) L'invention concerne un doigt de compas à calibrer destiné à être utilisé en tant que partie d'un outil de diagraphie de compas à calibrer à doigts multiples, lequel doigt a un corps sensiblement constitué d'un premier matériau et une pointe de doigt formée sensiblement d'un second matériau qui a une durabilité mécanique supérieure à celle du premier matériau. Le premier matériau et le second matériau sont fusionnés directement l'un à l'autre au niveau d'un raccord entre le premier matériau et le second matériau. La pointe de doigt peut comprendre une pluralité de couches successivement fusionnées du second matériau, qui peuvent ensuite être usinées au niveau de sa surface externe après fusion de la pluralité de couches. Le second matériau peut être un matériau composite de carbure de tungstène combiné à un matériau de base, le carbure de tungstène étant incorporé et fixé solidement au doigt.
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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, 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)