GEOTHERMAL CONDITIONS OF THE EASTERN OIL- AND GAS-BEARING REGION of ukraine

The formation of the temperature regime of the Dnieper-Donets depression is determined by the magnitude of the deep heat flux, the structural and tectonic features of the region, the lithology of the sedimentary complex, the occurrence of a thick complex of chemogenic and volcanic rocks in the region, as well as hydrogeological conditions. Based on the analysis of factual geothermal material on wells, obtained during geophysical studies, measurements of temperatures and geothermal gradients, measurements of temperatures during testing of productive horizons, as well as from literary sources, the interpolation of factual geothermal material is carried out. The geothermal parameters characterizing the temperature state of rocks and fluids of different tectonic zones of the Eastern oil- and gas-bearing region have been determined. Schemes of temperature distribution at depths of 2000, 8000 m, average geothermal gradient, depths of isotherms 150 °C, 180 °C are given and regularities of distribution of geothermal parameters are analyzed. The lateral zoning of the geothermal parameters distribution of the region is established, the zones of their maximum, middle and low values are distinguished. Taking into account the peculiarities of the tectonic structure of the Dnieper-Donets graben, as the sedimentary complex is submerged, a gradual replacement of oil by oil and gas fields and then by the gas ones occurs from the northwest to the southeast. Geothermal parameters characterize the geothermal activity of the subsurface and allow to determine its zonation, as well as to predict the phase state of hydrocarbon systems at great depths.

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Origin of oil and gas-bearing volcanic rocks recovered by deep drilling in the Niigata oil and gas fields, northeast Japan-with special reference to Sr and Nd isotopic research

Journal of the Japanese Association for Petroleum Technology ◽

10.3720/japt.73.273 ◽

2008 ◽

Vol 73 (4) ◽

pp. 273-276

Author(s):

Kenji Shuto

Keyword(s):

Special Reference ◽

Oil And Gas ◽

Volcanic Rocks ◽

Deep Drilling ◽

Oil And Gas Fields ◽

Origin Of Oil ◽

Gas Fields ◽

Gas Bearing

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Interaction between seawater and Miocene volcanic rocks recovered by deep drilling in the Niigata oil and gas fields, northeast Japan-Sr and Nd isotopic evidence from oil and gas-bearing volcanic rocks-

Journal of the Japanese Association for Petroleum Technology ◽

10.3720/japt.73.517 ◽

2008 ◽

Vol 73 (6) ◽

pp. 517-530 ◽

Cited By ~ 8

Author(s):

Kenji Shuto ◽

Makoto Sato ◽

Jun'ichi Ohki

Keyword(s):

Oil And Gas ◽

Volcanic Rocks ◽

Deep Drilling ◽

Isotopic Evidence ◽

Oil And Gas Fields ◽

Gas Fields ◽

Gas Bearing

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Prospects of Using Hydrocarbon Deposits from the Autochthonous Miocene Formation (Eastern Carpathian Foredeep, Poland) for Geothermal Purposes

Energies ◽

10.3390/en14113102 ◽

2021 ◽

Vol 14 (11) ◽

pp. 3102

Author(s):

Anna Chmielowska ◽

Anna Sowiżdżał ◽

Barbara Tomaszewska

Keyword(s):

Oil And Gas ◽

Geothermal System ◽

Vast Number ◽

Hydrocarbon Traps ◽

Oil And Gas Fields ◽

Geothermal Potential ◽

Carpathian Foredeep ◽

And Migration ◽

Gas Fields ◽

Geothermal Parameters

There are many oil and gas fields around the world where the vast number of wells have been abandoned or suspended, mainly due to the depletion of reserves. Those abandoned oil and gas wells (AOGWs) are often located in areas with a prospective geothermal potential and might be retrofitted to a geothermal system without high-cost drilling. In Poland, there are thousands of wells, either operating, abandoned or negative, that might be used for different geothermal applications. Thus, the aim of this paper is not only to review geothermal and petroleum facts about the Eastern Carpathian Foredeep, but also to find out the areas, geological structures or just AOGWs, which are the most prospective in case of geothermal utilization. Due to the inseparability of geological settings with both oil and gas, as well as geothermal conditionings, firstly, the geological background of the analyzed region was performed, considering mainly the autochthonous Miocene formation. Then, geothermal and petroleum detailed characteristics were made. In the case of geothermal parameters, such as formation’s thickness, temperatures, water-bearing horizons, wells’ capacities, mineralization and others were extensively examined. Considering oil and gas settings, insights into reservoir rocks, hydrocarbon traps and migration paths issues were created. Then, for evaluating geothermal parameters for specific hydrocarbon reservoirs, their depths were established based on publicly available wells data. Thereafter, the average temperatures for selected reservoirs were set. As the effect, it turned out that most of the deposits have average temperatures of 40/50 °C, nonetheless, there are a few characterized by higher (even around 80 °C) temperatures at reasonable depths.

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OIL AND GAS COMPLEXES OF THE ALDANO-MAY OIL AND GAS REGION

Interexpo GEO-Siberia ◽

10.33764/2618-981x-2021-2-1-282-290 ◽

2021 ◽

Vol 2 (1) ◽

pp. 282-290

Author(s):

Andrei M. Fomin ◽

Igor A. Gubin ◽

Sergey A. Moiseev

Keyword(s):

Oil And Gas ◽

Oil And Gas Fields ◽

History Of ◽

Gas Fields ◽

Gas Potential ◽

Gas Bearing

The article discusses the history of the geological study of the Aldan-Maya oil and gas region, during which numerous signs of oil and gas potential were identified. The description of oil and gas bearing complexes of sedimentary strata is given. It is shown that the prospects for the discovery of new oil and gas fields in the Aldan-Maya oil and gas bearing area were assessed quite high.

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