Patents by Inventor Khalim A. Asfandiyarov

Khalim A. Asfandiyarov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Arrangement for patching off troublesome zones in a well
    Patent number: 5083608
    Abstract: The arrangement for patching off troublesome zones in a well has a string of profile pipes with cylindrical portions at their ends, and a device for setting the string of profile pipes in a well, mounted for longitudinal reciprocation inside the string of profile pipes.Said device includes a reamer of the cylindrical portions of the profile pipes, positioned inside the uppermost cylindrical portion of the string of profile pipes, rigidly connected with an expander positioned above the string of profile pipes and having a housing with expanding elements mounted thereon.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: January 28, 1992
    Inventors: Gabdrashit S. Abdrakhmanov, Rashid A. Uteshev, Rustam K. Ibatullin, Izil G. Jusupov, Anatoly V. Perov, Albert G. Zainullin, Konstantin V. Meling, Boris V. Lavrushko, Ilmas F. Mingazov, Almaz A. Mukhametshin, Vitaly P. Filippov, Khalim A. Asfandiyarov, Tatyana A. Mikhailova, Vladimir S. Parshin, Leonid V. Junyshev, Alexandr A. Puzanov, Alexandr P. Balandin
  • Thermal--mining method of oil production
    Patent number: 4283088
    Abstract: A thermal-mining method of oil production is effected by digging a combination of underground workings and at least one working tunnel and by drilling injection and producing wells from said working tunnel. Then a heat carrier is forced into the oil-bearing bed for heating it to a temperature sufficient for the oil to acquire the necessary fluidity. The heat carrier is forced into the oil-bearing bed through injection wells at time intervals t.sub.1 found from an appropriate relation. The oil is withdrawn from the oil-bearing bed through the producing wells at time intervals t.sub.3 in which the time interval t.sub.1 of heat carrier injection into the injection wells is divisible by the time interval t.sub.3 of oil withdrawal from the producing wells, the multiplicity factor being equal to n=(t.sub.1 /t.sub.3).gtoreq.60.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: August 11, 1981
    Inventors: Vladimir P. Tabakov, Boris P. Kornev, Leonid N. Buchenkov, Andrei T. Gorbunov, Vladilen E. Kaschavtsev, Viktor P. Pilatovsky, Evgeny I. Gurov, Alexandr I. Obrezkov, Gadel G. Vakhitov, Rishad T. Bulgakov, Vladimir P. Maximov, Rafkhat A. Maxutov, Alexandr I. Shnirelman, Boris E. Dobroskok, Khalim A. Asfandiyarov, Airat K. Fatkullin, deceased