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1. (WO2020002936) WHIPSTOCK ASSEMBLY
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2020/002936 International Application No.: PCT/GB2019/051835
Publication Date: 02.01.2020 International Filing Date: 28.06.2019
IPC:
E21B 7/06 (2006.01) ,E21B 23/00 (2006.01) ,E21B 29/06 (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
7
Special methods or apparatus for drilling
04
Directional drilling
06
Deflecting the direction of boreholes
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
23
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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
29
Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
06
Cutting windows, e.g. directional window cutters for whipstock operations
Applicants:
OILTOOLSTEQ LTD [GB/GB]; 28 Albyn Place Aberdeen Aberdeenshire AB10 1YL, GB
Inventors:
BROWN-KERR, William; GB
WATSON, Andrew John; GB
Agent:
ORR, Robert; GB
Priority Data:
1810604.728.06.2018GB
Title (EN) WHIPSTOCK ASSEMBLY
(FR) ENSEMBLE SIFFLET DÉVIATEUR
Abstract:
(EN) A whipstock assembly (12) for use in deviating a wellbore (10) of a well is disclosed, the whipstock assembly comprising a whipstock (18) having an inclined deflection surface (20); a milling assembly (14) comprising a mill (16) for milling a window (49) in a wall (48) of the wellbore and forming a rathole (50) extending from the wellbore; a releasable joint (22; 122) by which the milling assembly is releasably connected to the whipstock, so that the milling assembly can be separated from the whipstock within the wellbore and subsequently deflected towards the wellbore wall by the deflection surface of the whipstock; at least one sensor (188) provided in the milling assembly, for measuring at least one parameter of the rathole, the at least one parameter relating to a trajectory of the rathole; and a communication device (190) associated with the at least one sensor, for communicating data relating to the at least one parameter to an operator of the milling assembly.
(FR) L'invention concerne un ensemble sifflet déviateur (12) destiné à être utilisé pour la déviation d'un puits de forage (10) d'un puits, lequel ensemble sifflet déviateur comprend un sifflet déviateur (18) ayant une surface de déviation inclinée (20) ; un ensemble de fraisage (14) comprenant une fraiseuse (16) pour fraiser une fenêtre (49) dans une paroi (48) du puits de forage et former un trou de rat (50) s'étendant à partir du puits de forage ; un raccord libérable (22 ; 122) par lequel l'ensemble de fraisage est relié de manière libérable au sifflet déviateur, de telle sorte que l'ensemble de fraisage peut être séparé à partir du sifflet déviateur à l'intérieur du puits de forage, et est ensuite dévié vers la paroi de puits de forage par la surface de déviation du sifflet déviateur ; au moins un capteur (188) disposé dans l'ensemble de fraisage, pour mesurer au moins un paramètre du trou de rat, le ou les paramètres concernant une trajectoire du trou de rat ; et un dispositif de communication (190) associé au ou aux capteurs, afin de communiquer des données concernant le ou les paramètres à un opérateur de l'ensemble de fraisage.
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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 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)