The time length (with uom) of the well test. The interval tested. This element includes a top and base depth, and the formation tested. This element records measurements made and settings made at the wellhead. This element records measurements made at the bottomhole. This element records the measurements (pressure and temperature) at the separator. The method being used to operate the well. Examples are 'flowing', 'pumping', 'gas lift'. The cumulative volumes of fluids at the time of the well test. The fluids are oil, gas, and water. The production results of the test.