Patents Represented by Attorney, Agent or Law Firm Robert Van Someten
  • Protector for electrical submersible pumps
    Patent number: 6688860
    Abstract: A system and method for protecting a motor for a submersible pumping system. A variety of motor protectors are provided for application in variable temperature environments and multiple wellbore orientations. The motor protectors may include one or more of a positively pressurized bellows, a relatively balanced pressure bellows free of sliding seals, and a multi-orientable labyrinth. Each of these motor protectors also may have various moisture absorbents, filters, particle shedders and various conventional motor protector components.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: February 10, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael H. Du, Lawrence C. Lee, Arunkumar Arumugam, Ashley C. Kishino