Procedural approach to estimation of energy efficiency for gas production technologies
Indices of energy efficiency for a gas producing company in many respects depend on changing (reduction) of pore pressure and production output. The named terms mostly determine operation modes of the main processing equipment; at the same time the operational services practically don't have means to affect them. The main feature of gas producing enterprises is the increase of specific consumption of gas fuel for compression as far as the pore pressure is dropping. At that, improvement of the energy efficiency is possible due to optimization of gas extraction by the subject facilities and modes of equipment operation.Evaluation of energy efficiency at gas producing enterprises is examined on example of the Gazprom Dobycha Noyabrsk. Analysis of factual data showed: the reason for increase of specific gas fuel consumption for a unit of production output is that the energy efficiency of a company is determined by the energy efficiency of used booster compressors. Specific consumption of fuel and power resources for a unit of booster compressor performance grows at decreasing of the pore pressure because at that the specific polytropic compressor energy rises. Necessity to estimate the specific indices of fuel and power consumption is substantiated. It should be done on account of changing operational conditions with the equitable periods. The approaches to development of correspondent methods are presented.Listed conclusions are common for all gas producing companies.