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1. WO2022011154 - CEMENTING ACROSS LOSS CIRCULATION ZONES UTILIZING A SMART DRILLABLE CEMENT STINGER

Publication Number WO/2022/011154
Publication Date 13.01.2022
International Application No. PCT/US2021/040910
International Filing Date 08.07.2021
IPC
E21B 21/00 2006.1
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
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
E21B 33/124 2006.1
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
10in the borehole
12Packers; Plugs
124Units with longitudinally-spaced plugs for isolating the intermediate space
E21B 33/13 2006.1
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
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
E21B 33/138 2006.1
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
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
138Plastering the borehole wall; Injecting into the formation
Applicants
  • SAUDI ARABIAN OIL COMPANY [SA]/[SA]
  • ARAMCO SERVICES COMPANY [US]/[US] (AG)
Inventors
  • EGBE, Peter Ido
  • BUSTAMANTE RODRIGUEZ, Victor Jose
Agents
  • BRUCE, Carl E.
  • IYER, Sushil
  • COX, Michael E.
  • DEAN, Sean M.
  • WERNLI, Matthew K.
Priority Data
16/924,96309.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CEMENTING ACROSS LOSS CIRCULATION ZONES UTILIZING A SMART DRILLABLE CEMENT STINGER
(FR) CIMENTATION À TRAVERS DES ZONES DE PERTE DE CIRCULATION UTILISANT UN TUBE D'INJECTION DE CIMENT FORABLE INTELLIGENT
Abstract
(EN) Systems and methods include a computer-implemented method for handling loss circulation zones in wells. A tool is deployed on a work string. The tool includes isolation packers in an un-inflated state and a stinger in a closed position. The tool is run to a target depth along the work string. The isolation packers are inflated, setting the isolation packers in place adjacent to the stinger at the target depth. Circulation ports are opened after the isolation packers are inflated, exposing a diversion flow path. A cement slurry is pumped through the diversion flow path into a loss circulation zone. The circulation ports are closed after the cement slurry is pumped. The work string is disengaged from the stinger.
(FR) Des systèmes et des procédés comprennent un procédé mis en œuvre par ordinateur pour prendre en charge des zones de perte de circulation dans des puits. Un outil est mis en place sur une colonne de travail. L'outil comprend des garnitures d'étanchéité d'isolation dans un état non gonflé et un tube d'injection dans une position fermée. L'outil est amené à une profondeur cible le long de la colonne de travail. Les garnitures d'étanchéité d'isolation sont gonflées, réglant les garnitures d'étanchéité d'isolation en place adjacentes au tube d'injection à la profondeur cible. Des orifices de circulation sont ouverts après que les garnitures d'étanchéité d'isolation sont gonflées, faisant apparaître un trajet d'écoulement de dérivation. Un laitier de ciment est pompé à travers le trajet d'écoulement de dérivation dans une zone de perte de circulation. Les orifices de circulation sont fermés après que le laitier de ciment a été pompé. La colonne de travail est libérée du tube d'injection.
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