Open AccessBazhenov formation phosphate containing interlayers as potential collectors
Author(s) -
G. A. Kalmykov,
Е. А. Мануилова,
Г. А. Калмыков,
V. S. Belokhin,
Н. И. Коробова,
O. M. Makarova,
Elena Kozlova,
R. A. Khamidullin,
В. А. Шишков,
А. Г. Иванова
Publication year - 2016
Publication title -
vestnik moskovskogo universiteta. seriâ 4, geologiâ
Language(s) - English
Resource type - Journals
ISSN - 0579-9406
DOI - 10.33623/0579-9406-2016-5-60-66
Subject(s) - phosphate , characterisation of pore space in soil , phosphate minerals , porosity , organic matter , geology , mineralogy , saturation (graph theory) , phosphorite , geochemistry , chemistry , petroleum engineering , geotechnical engineering , organic chemistry , mathematics , combinatorics
Possible reservoir type of Bazhenov formation relative to the intervals with increased content of phosphate is described in the resent work. It is shown that phosphate formations have highly connected pore space, porosity may achieve values up to 14%. These rocks also have explicit geochemical characteristics of oil reservoir rocks in comparison with other rock samples in the well. For example, the productivity index and oil saturation index for phosphates is twice higher. The composition of such species may slightly vary, fluorine may present in phosphate minerals, meanwhile rocks are always maintain high content of organic matter (more than 8 wt%).