EP 4409105 A1 20240807 - MAGNETICALLY CONTROLLED RELEASE OF CHEMICALS IN A DOWNHOLE ENVIRONMENT
Title (en)
MAGNETICALLY CONTROLLED RELEASE OF CHEMICALS IN A DOWNHOLE ENVIRONMENT
Title (de)
MAGNETISCH GESTEUERTE FREISETZUNG VON CHEMIKALIEN IN EINER BOHRLOCHUMGEBUNG
Title (fr)
LIBÉRATION COMMANDÉE MAGNÉTIQUEMENT DE PRODUITS CHIMIQUES DANS UN ENVIRONNEMENT DE FOND DE TROU
Publication
Application
Priority
- US 202117542073 A 20211203
- US 202116720879 A 20211219
- US 2022051026 W 20221127
Abstract (en)
[origin: WO2023101893A1] A method for on demand release of a downhole chemical comprising the steps of extending a drillstring into a wellbore of a subterranean well from a terranean surface comprising an actuator assembly and a modified stabilizer; identifying a downhole issue in the wellbore; activating the actuator assembly to transmit a signal to turn on the electromagnet of the modified stabilizer; creating a magnetic field when the electromagnet is turned on by the actuator assembly; opening the magnetically-actuated door due to the magnetically-actuated door being physically attracted to the magnetic field of the electromagnet; releasing downhole chemicals from the chemical storage compartment through the magnetically-actuated door; activating the actuator assembly to transmit a signal to turn off the electromagnet of the modified stabilizer; removing the magnetic field when the electromagnet is turned off by the actuator assembly; and closing the magnetically-actuated door when the magnetic field is removed.
IPC 8 full level
E21B 23/00 (2006.01); E21B 17/10 (2006.01); E21B 27/02 (2006.01); E21B 41/00 (2006.01)
CPC (source: EP)
E21B 17/1057 (2013.01); E21B 17/1078 (2013.01); E21B 23/00 (2013.01); E21B 27/02 (2013.01); E21B 41/00 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
US 2022051026 W 20221127; EP 22840446 A 20221127