A typical check list for testing the injection equipment shown in Fig.7 prior to injection is: [2] [3] 3

(4) The relief valve is set to 30 MPa (350 bar). Check that it does not relieve at working pressure.

(5) Open valves D and B. Check for leakages.

(6) Remove drain plug and open valve C slightly to check for flow through the module.

(7) Close valve C and replace drain plug.

(8) Close valve D and open valve 2. The two manometers on the module will now read injection line pressure.

(9) After having passed through the steps 1-8 successfully, close all valves. The module is now ready for installation of the tracer bottle.

(10) Bring the tracer bottle to the site.

(11) Check that the wire seal between the valves on the bottle is not broken.

(12) Remove the plugs from the two valve outlets.

(13) Connect the bottle to the injection module.

(14) Starting with all valves closed, open valves 1 and E and check for leakages.

(15) Close valve E and open valves D and F. Check for leakages.

(16) Close valves 1, D, F and check that all other valves are closed.

(17) Having passed the above steps successfully, the tracer injection module is ready for injection of tracer.