The analysis of the depth of layers in the top section opened while drilling the well and the reprocessing-interpretation of seismic data showed that this part of the uplift related to the Bulla-Sea field was directly complicated by the influence of the mud volcano, the elements of the layer changed sharply compared to other areas, and a small saddle-shaped depression was formed inside the anticlinal fold. Therefore, after the well has reached the design depth, all the geological-geophysical data collected and the actual cross-section have been analyzed, according to the purpose of the well, finalization of the works, determination of the project horizon of the wells to be drilled in the tectonic block, and preparation of an addition to the drilling project to open the project horizon in order to correctly direct the development at the next stage, it was decided to continue drilling up to the project horizon and the project depth of the well was increased.