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1. WO2020112641 - CLOSED OFF LINER HANGER SYSTEM AND METHODOLOGY

Publication Number WO/2020/112641
Publication Date 04.06.2020
International Application No. PCT/US2019/063019
International Filing Date 25.11.2019
IPC
E21B 23/04 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
23Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
04operated by fluid means, e.g. actuated by explosion
E21B 33/04 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
02Surface sealing or packing
03Well heads; Setting-up thereof
04Casing heads; Suspending casings or tubings in well heads
CPC
E21B 23/04
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
23Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
04operated by fluid means, e.g. actuated by explosion
E21B 33/04
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
02Surface sealing or packing
03Well heads; Setting-up thereof
04Casing heads; Suspending casings or tubings in well heads
Applicants
  • SCHLUMBERGER TECHNOLOGY CORPORATION [US]/[US] (US)
  • SCHLUMBERGER CANADA LIMITED [CA]/[CA] (CA)
  • SERVICES PETROLIERS SCHLUMBERGER [FR]/[FR] (FR)
  • SCHLUMBERGER TECHNOLOGY B.V. [NL]/[NL] (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
Inventors
  • EL-MESTEKAWY, Amr
Agents
  • MCKINNEY, Kelly
  • DAE, Michael
Priority Data
62/771,45426.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CLOSED OFF LINER HANGER SYSTEM AND METHODOLOGY
(FR) SYSTÈME ET MÉTHODOLOGIE DE SUSPENSION DE COLONNE PERDUE FERMÉE
Abstract
(EN)
A technique facilitates well operations by utilizing a closed off liner hanger system. The closed off hanger system may be part of a tubing string having a liner hanger with knock off members, e.g. knock off rods, which close off hydraulic ports used for actuating the hanger. The liner hanger also may comprise hydraulically actuated slips which are actuated via application of hydraulic fluid under pressure once the knock off members are altered to enable flow through the hydraulic ports. During actuation of the slips, hydraulic fluid under pressure is delivered down through the tubing string and through the hydraulic ports of the liner hanger. The ability of the knock off members to initially prevent flow through the hydraulic ports enables high-pressure operations, e.g. cementing operations, to be conducted through the tubing string without prematurely actuating the liner hanger.
(FR)
L'invention concerne une technique facilitant des opérations de puits en utilisant un système de suspension de colonne perdue fermée. Le système de suspension fermée peut faire partie d'un train de tiges de production comportant un dispositif de suspension de colonne perdue avec des éléments d'arrêt, par exemple des tiges d'arrêt, qui ferment des orifices hydrauliques utilisés pour actionner le dispositif de suspension. Le dispositif de suspension de colonne perdue peut également comprendre des coins de retenue à actionnement hydraulique qui sont actionnés par l'application d'un fluide hydraulique sous pression une fois que les éléments d'arrêt sont modifiés pour permettre un écoulement à travers les orifices hydrauliques. Pendant l'actionnement des coins de retenue, un fluide hydraulique sous pression est distribué vers le bas à travers la colonne de production et à travers les orifices hydrauliques du dispositif de suspension de colonne perdue. La capacité des éléments d'éjection à empêcher initialement un écoulement à travers les orifices hydrauliques permet d'effectuer des opérations à haute pression, par exemple des opérations de cimentation, à travers la colonne de production sans actionner prématurément le dispositif de suspension de colonne perdue.
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