European Gas Limited announces the resumption of testing of the Folschviller 2 appraisal well at the company’s 100% owned Lorraine Project in eastern France.
Having secured a workover rig, test operations will investigate the reservoir properties of the Marie-Maurice-Noirel and the Alpha-Alpha'-Beta-Gamma seams.
The test programme is to:
• conduct a multi-rate single phase flow test on the upper seam;
• workover the well to remove the packer separating the upper lateral from the lower lateral;
• reset the downhole pump below both seams; and
• conduct a second multi-rate single phase test on both seams.
These single phase tests will be carried out during the dewatering period to fully evaluate the coal seam reservoir properties of permeability and flow performance.
This is done prior to attempting any gas flow operation from the seams to ensure a clear interpretation.
A separate programme will be conducted after the testing to analyse pressure drawdown below the gas desorption pressure and evaluate gas production capability.
The downhole pump has been re-started and is presently producing water at varying rates during the cleanup of the first lateral borehole. The cleanup flow from the upper seam showed some coal fines at start-up, a reduction in fines as dewatering continued and an apparent increase in fluid inflow. Once the cleanup is completed, the multi-rate test will begin.