Opening Up and Testing of Lower Cambrian Productive Strata of East Siberia.

A brief characterization of the collecting properties of reservoir strata singled out in a section of the Lower Cambrian deposits of East Siberia is given. In the majority of cases, a NaCl solution was used when boreholes were drilled and considerable absorption was noted. This had a negative effect on the filtration characteristics. The reservoir strata become clean during the operation of the boreholes and the harmful effect of the solution is eliminated. Recommendations are given on the tapping and testing of the reservoir strata of different quality and type.