• Testing is continuing at Folschviller 2 appraisal well.
• The well has been equipped with a pump and down-hole pressure monitoring
equipment for isolated test of the upper lateral and two sidetracks.
• Surface equipment has been installed to handle and measure gas and fluid production.
• Scheduling is in progress to change down-hole equipment to test both the lower and upper laterals and two sidetracks.
PROGRAM
European Gas Limited reports on the progress of testing operations at the Folschviller 2 appraisal well in the company’s 100% owned Lorraine Project in eastern France.
The well has two laterals and two sidetracks for a total of 433 metres of coal and a further 367 metres of gassy sediments. The upper lateral with its two sidetracks is currently under test. The lower lateral is temporarily shut in below a packer while the test on the upper lateral is completed. Testing on the lower lateral will be commenced in October.
The current placement of the pump allows for water sampling and pressure testing. The results to date indicate that the well bore is in good communication with the coal seam and, as expected, permeability is low. Gas flow rate measurements are planned to be carried out the second part of the current program.
Water flow rate testing demonstrates gas desorption will occur after pumping of the water. Historical records have shown that generally the coals have low water content. The second part of the well test will allow for the opening of the lower lateral and the production testing of both laterals and the two sidetracks. This program is designed to allow observation of the pressures at which gas desorption commences and further evaluation of reservoir characteristics. In the lower lateral a fractured zone was identified while drilling potentially indicating a significant zone of higher permeability. This fracture zone, together with the coals exposed in the lower lateral, will also be evaluated in the second part of the well test.
Results from these tests will be used to estimate deliverability and evaluate the application of a lateral drainage strategy for development of the Lorraine coals.
