Reducing Well Test Duration at the Design Stage by Means of Successive Deconvolution Application on the D. Field Example

The issue of systematic approach to well test design does not leave any doubts. It is particularly relevant for test design in an explored area with the complex geology where we usually possess the minimum of data about the reservoir and are required to derive the latter with sufficient confidence for the shortest time. Deconvolution technique allows us to decrease duration of well testing to the minimum albeit demands of linearity of the system investigated. In this work the thorough particular well test design is performed in the attempt to take into account all the issues concerning application of deconvolution technique and conventional test data interpretation. For design purposes the integration of simulations in Eclipse and Saphir was done in order to built unsophisticated but representative model in Saphir. Also the influence of aquifer and well interference were regarded. The interference was taken into account to linearize the system for deconvolution technique application. The method for time distribution between drawdown and build-up in the test sequence was suggested. Sensitivity analysis is implemented to reservoir and well parameters. Also the conventional test and test for deconvsolution are compared and economics issue are adduced.