Open AccessGEOTHERMAL ZONALITY OF OIL AND GAS BEARING DEPOSITS IN THE NORTH-WESTERN TERRITORY OF NOVOSIBIRSK REGION
Author(s) -
Dmitry A. Novikov,
S. V. Ryzhkova,
F. F. Dultsev,
А. В. Черных
Publication year - 2018
Publication title -
izvestiâ vysših učebnyh zavedenij. neftʹ i gaz
Language(s) - English
Resource type - Journals
ISSN - 0445-0108
DOI - 10.31660/0445-0108-2018-5-69-76
Subject(s) - geology , geothermal gradient , paleozoic , geochemistry , mesozoic , basement , carbonate rock , geothermal exploration , carbonate , paleontology , petrology , geothermal energy , structural basin , sedimentary rock , civil engineering , materials science , engineering , metallurgy
The article is devoted to the approach to geothermal zonality. The results of geothermal studies of oil and gas bearing deposits in the northern territory of Novosibirsk region and adjacent areas are presented. Geothermal zoning was carried out, and the major geothermal anomalies were determined. The features of the geothermal zonality of Mesozoic sediments in the region under investigation are first of all defined by the material composition of the Paleozoic basement, the structural arrangement, and the warming effect of ground water during its crossflows from deeper lying horizons. Formation temperatures get leveled within the boundaries of Aptian-Albian-Cenomanian sediments, and no anomalies are distinguished. The highest geothermal gradients sup to 3,6-4,6 °C/100 m and correspond to the edge zones of the development of intrusive formations of pre-Jurassic rocks. Lower gradients sup to 2,4-3,0 °C/100 m and characterize the regions, in which Paleozoic carbonate rocks occur.