Daily production figures are 165 thousand cubic meters of gas.
A US military base is located a short way off the site of the emergency.
Naftogaz Group started using technology in 2018.
The gas fields will be guarded by combat corvettes purchased from Germany.
The British company is working to improve the security of employees and facilities.
The work on assessing the volume of the field is scheduled to be completed by mid-October this year.