DOWNHOLE FLUID SEPARATION SYSTEM INCORPORATING A DRIVE-THROUGH SEPARATOR AND METHOD FOR SEPARATING WELLBORE FLUIDS

摘要

A fluid separation system is provided for separating wellbore fluids in to production fluids and non-production fluids. The system includes a separator adapted for transmitting mechanical power between a drive motor and at least one pum p. The separator includes one or more separation units, such as hydrocyclone separators. A drive train traversing the separator is interfaced with drive elements, such as a submergible electric motor, and driven elements such as an injection or production pump. Wellbore fluids are channeled through the separator in either a push- through or pull-through manner. Production fluids are then transferred from the separat or to the production pump for removal from the well. Non-production fluids are transmitted from the separator either to the injection pump for reinjection into a subterrane an discharge zone, or directly into the discharge zone from the separator. The drive trai n elements traversing the separator are supported by antifriction bearings in interface plates on either end of the separator. The ability to transmit mechanical power throug h the separator facilitates assembly of pumping system components in various configurations as well as piping fluid communication paths between the pumping system components.