National Drilling Company has put in place an Energy Management System. The main objective is to ensure an optimum use of energy by trimming waste, better use of natural resources and avoidance of unnecessary operating costs. Additionally the initiative targeted improving environmental performance.
Methods, Procedures, Process:
NDC examined the prevalent practices and energy sources within the company. It then prepared a chart showing the relationship between each energy source thus identifying the largest consumer. This led to the identification of the best improvement opportunity that the company could put in place. Not surprisingly this was the rig engines. Once this was done, the company devised a simple process to monitor and report on the actual energy consumption per site. This was compared with the actual operation at the time of reporting and the correlation between these two parameters identified an opportunity to optimize the deployment of engines. Moreover, with numerous rigs engaged in similar operations a process was put in place to compare between similar rigs and operations. The anomalous use of engines was highlighted and site staff advised against inappropriate use.
Results, Observations, Conclusions:
Although the process was started as an initiative to cut down on diesel consumption (diesel being identified as an energy source in ISO 50001) and conserve energy consumption across the company, the results when compared after one year of operations yielded additional benefits. The overall savings of the company were as follows:
Fuel Savings - Almost 5 million gallons of diesel were saved in the full year.
Cost savings - Over 55 million Dhirams savings were realized
Energy Savings - Almost 700,000 Giga Joules of energy savings were recorded
CO2 Reduction - 50,000 tonnes of reduction in CO2 emissions was recorded for 2014 vis-à-vis 2013.
Other benefits of the project was in reduction of maintenance costs, reduction of lubricating oils for engines, Better utilization of capital assets and a longer life of the engines across the company.