Economic Benefit Analysis

A certain LNG liquid plant (50,000 cubic meters) project has an annual operating time of 360 days. 

The project is equipped with two 1000kW units in parallel to form a power supply device to supply power to the liquid plant, with an average power supply load of 1075kW. 

Economic benefit analysis comparing the costs of three energy sources: natural gas, grid electricity and diesel:

Note: The average diesel price is 4,900￥/ton, grid electricity is 0.65￥/kwh, and wellhead gas price is 0.9 ￥/Nm3; the average power eneration of gas units is 3.2kWh/Nm3.

The cost of using natural gas for power supply is more than 55% lower than grid electricity and more than 75% lower thandiesel, which is a significant benefit.

A drilling rig gasification project of a drilling team (70DB drilling rig) uses LNG gas supply, the designed drilling depth is 7947 meters, and the drilling period is 122 days; 

the project is equipped with three 1000kW units and one 500kW unit in parallel to form a power supply device to supply power to the well team.  

Economic benefit analysis of the comparison of the two energy costs of natural gas and diesel:

Note: The average diesel price is 4,900￥/ton, and the gas price is 2.6￥/Nm3; the gas consumption during the entire drilling cycleis 1.03 million cubic meters; the power generation is 3,138,628 kWh, and the load factor is relatively low, with an average power generation of 3 kWh/Nm3.

Using natural gas to generate electricity saves 923,000￥ compared to diesel, a savings rate of 25.6%; it also saves diesel transportation costs, diesel generator equipment maintenance costs, etc., with an overall savings rate of more than 26%.