METHOD FOR ELECTROCHEMICAL CORROSION PROTECTION OF SUBMERSIBLE EQUIPMENT IN A LIQUID MEDIUM Russian patent published in 2021 - IPC C23F13/00 

Abstract RU 2749787 C1

FIELD: tread protection.

SUBSTANCE: invention relates to tread protection and can be used for corrosion protection of downhole submersible equipment. The method includes preliminary attachment of a protector to the lower part of the submersible equipment with the formation of a galvanic pair, in which the submersible equipment is the cathode, the protector is the anode, and the liquid is the electrolyte, and with the gradual destruction of the protector, which is controlled by a sensor placed on the submersible equipment and consisting of a dielectric substrate and conductive jumpers of different sizes, connected to a single base, by monitoring the electrical parameters at the terminals from the jumpers and from the base, in this case, the jumpers are made of the protector material for electrochemical protection against corrosion, the sizes of the jumpers are made corresponding to different weight parts of the protector, the sensor is placed in the same environment with the protector, the sequential change in the potential difference between the base and the bridges is monitored, the remaining time of the protector operation is calculated until the potential difference between the base changes and the largest size bridge and replace the protector until it is completely dissolved.

EFFECT: invention improves reliability of the submersible equipment by increasing reliability of its protection against corrosion.

1 cl, 2 dwg

Similar patents RU2749787C1

Title Year Author Number
SUBMERSIBLE DEVICE CASING FOR WELL INTERVENTION 2011
  • Dolgikh Sergej Aleksandrovich
  • Redekop Aleksandr Garol'Dovich
RU2493435C2
DEVICE FOR CATHODIC PROTECTION OF A WELL PUMP AND AN ELECTRIC CABLE FOR POWER FEEDING TO AN ELECTRIC MOTOR OF THE PROTECTED WELL PUMP 2002
  • Kalimullin A.A.
  • Akhmetgaleev R.Z.
  • Akshentsev V.G.
  • Garifullin I.F.
  • Vakhitov T.M.
  • Vakhitov M.F.
RU2231575C1
METHOD OF CORROSION PROTECTION OF SUBMERSIBLE PUMP UNIT BY LINING EXTERNAL SURFACE OF ASSEMBLIES THEREOF 2019
  • Baranov Nikita Aleksandrovich
  • Yudin Pavel Evgenevich
  • Maksimuk Andrej Viktorovich
  • Zheldak Maksim Vladimirovich
  • Petrov Sergej Stepanovich
  • Knyazeva Zhanna Valerevna
RU2734201C1
PROTECTOR FOR PROTECTION OF OUTER SURFACES OF PIPES AGAINST CORROSION 0
  • Kostylev Anatolij Aleksandrovich
  • Abdullaev Mamed Masha Muslim Ogly
  • Sysoev Anatolij Vasilevich
  • Akhmedov Bagadir Mirza Ogly
  • Golubev Aleksandr Aleksandrovich
  • Luzan Aleksej Filippovich
  • Kashkarov Aleksandr Zakharovich
  • Lipukhin Evgenij Antonovich
  • Krasnoyarskij Vladimir Vasilevich
  • Brandman Olga Illarionovna
  • Dyatlov Vladimir Vasilevich
  • Stolbova Aleksandra Dmitrievna
  • Sakov Viktor Serafimovich
SU1730201A1
METHOD FOR OPERATION OF PIPELINES OF OIL COLLECTION AND RESERVOIR PRESSURE MAINTENANCE OF OIL DEPOSIT 2015
  • Ibragimov Nail Gabdulbarievich
  • Zabbarov Ruslan Gabdelrakibovich
  • Shevchenko Andrej Alekseevich
  • Evseev Aleksandr Aleksandrovich
  • Salimullin Rustem Rashidovich
  • Ibragimov Ilgiz Zamilovich
RU2593855C1
DEVICE FOR CONTROL OVER LOCAL CORROSION PENETRATION INTO METAL STRUCTURES 2011
  • Reformatskaja Irina Igorevna
  • Torshin Vadim Borisovich
  • Ashcheulova Irina Ivanovna
  • Podobaev Aleksandr Nikolaevich
  • Artamonov Oleg Jur'Evich
  • Afon'Kin Andrej Evgen'Evich
  • Shishlov Dmitrij Sergeevich
RU2510496C2
METHOD OF CATHODE PROTECTION OF IMPELLER WITH BLADES OF TURBINE OF HYDRAULIC UNIT FROM CORROSION AND CAVITATION DESTRUCTION 2014
  • Buslaev Aleksandr Alekseevich
RU2596514C2
METHOD FOR COMPLEX PROTECTION OF ELONGATED STEEL PIPELINES FROM CORROSION 2003
  • Naumejko A.V.
RU2237748C1
PROTECTOR WITH REPLACEABLE ACTIVE ELEMENT 2022
  • Asharin Sergej Nikolaevich
  • Sirota Dmitrij Sergeevich
  • Ulikhin Aleksandr Nikolaevich
  • Shamshetdinova Nataliya Kayumovna
  • Zapevalov Dmitrij Nikolaevich
RU2808042C1
CURRENT METER FOR GALVANIC PROTECTION OF MARINE STRUCTURES 2021
  • Asharin Sergej Nikolaevich
  • Sirota Dmitrij Sergeevich
  • Ulikhin Aleksandr Nikolaevich
  • Shamshetdinova Nataliya Kayumovna
  • Zapevalov Dmitrij Nikolaevich
RU2781549C1

RU 2 749 787 C1

Authors

Gilev Oleg Arkadevich

Dates

2021-06-16Published

2020-09-11Filed