Commingling differentiated control providing is actual problem for multi-layer oil fields in the Russian Federation. There are multiple economic benefits of commingling reserves that can provide very large increases in incremental project NPV for all types of oil and gas field developments. The benefits of commingling production from separate reservoirs are:

  • ability to produce hydrocarbon from multiple reservoirs which may not be economic to produce on their own

  • fewer wells, less infrastructure - lower capital expense

  • lower operating expenses

  • less environmental impact, fewer locations

  • a sustained production plateau

The regulations for the commingling of down-hole production are typically set by government agencies responsible for oil and gas developments. There are very few areas of the world that permit commingled flow from different reservoir intervals without approved means of control, testing of segregation, and flow estimation and allocation. Russian government regulators limit commingling by continuous monitoring stringent requirement for each reservoir. This opportunity allows a license holder to both manage and control of oil field development and water oil displacement processes.

Separate monitoring and development management task has been technically solved nowadays at pilot level by a number of national oil companies. For instance, GazProm Neft specialists tested the technical side of the problem and its possible solutions at the Yuzhno-Priobskoe oil field in 2009. The work has been continuing in 2010. [1].

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