Analyze the tranmissivity for pumping well testing with single and observation well

Abstract EN

In general, for determining aquifer parameters pumping test conducted on the production well due to lack of observation wells in Erbil catchment area.

In the present study steady state pumping test method using single well was used to estimate the tranmissivity of the aquifer.

For this purpose pumping test conducted on a single production pumping well at the specific area which is located at the QATAWI area near Erbil city.

The results of transmissivity obtained from single well pumping test data was compared with that obtained from observation well.

The value of Transmissivity calculated from the field data via pumping test on single pumping well equal to 13.05 m2 / day however its value obtained from observation well equal to 197.7 m2/day.

It was observed that the results of transmisivity of the aquifer using single pumping well is less than that using observation well; this is mostly due to the losses that are available within the pumping well.

To get a real value of transmissivity of the aquifer the pumping test should be conducted on an observation well or adjustment of the data is required when the test is conducted on the single pumping well.