Inert Well Stimulation is here to optimize the lowest possible cost of gas & water in oil displacement
Exhaust Gas System (EGS) – To displace the oil we can provide units that provide the lowest possible cost of gas and some water to inject. The EGS was originally developed for under balanced drilling and can produce a mixture of Nitrogen and CO2, for injection at a rate of 1 mmscfpd (10 m³/min) at 3.8 MPa (550 psi). It is designed to burn either propane or natural gas, capture and treat the engine flue gas and compress it for injection into a well, thereby multiplying the gas for injection by a factor of 9 over the volume of fuel gas alone.
The units also produce power which can be used to operate booster or high-pressure compressors where injection pressures required are higher than 3.8 MPa to as high as 13-14 MPa. The flue gas is mainly nitrogen which reduces the corrosion potential compared to CO2 or acid gas. Acid gas injection and EOR projects such as those done in past zones showed corrosion concerns even with 100% acid gas.
Flexible and Transportable – The EGS and compression systems were developed for use on rigs so are skid mounted and transportable. The intent is to move them from site to sites after 3-6 month stimulations at a single site. Gas would be injected as deep as possible into existing disposal or injection wells. The water produced by the combustion reaction can also be injected into the reservoir either through the same well or an offset well. These units are ideal for remoteglobal operations.