MSc in Geology, 1967, University of Bucharest.
Exploration geologist - focus of interest: Carpathians - flysch and molasse sedimentology (Geological and Geophysical Exploration company), Bucharest 1967-1970.
Senior researcher geologist - focus of interest: south and western Carpathians – wrench tectonics, pelitic rocks and carbonate diagenesis, thermal maturation of organic matter (Geological Survey of Romania), Bucharest 1971-1980.
Ph.D in Geology doctoral study and dissertation preparing period, Basel University 1980-1985.
Ph.D in Geology, Tectonics and Petrology (Helvetic Nappes - tectonic evolution and petrology), Basel University 1985.
Petrophysics studies concerning northern Switzerland subsurface geology, Bern University, 1985-1988.
Senior petroleum geologist in charge of hydrocarbon field evaluation and potential analyses for several CIS countries (Russia – partly, Ukraine, Georgia and Azerbaijan), IHS company, 1988-2012.
Independent Petroleum Geologist of the Journal "Neftegazovaya Geologiya. Teoriya I Praktika" (since 2012).
Fields of interest: Structural Geology, Tectonics and Regional Geology, Basin Analysis.
Author of more than 40 scientific publications concerning several tectonic units belonging to Carpathians, Alps and Caucasus folded belts.
|Article # 10_2018||submitted on 03/12/2018 displayed on website on 03/30/2018|
|25 p.||Morariu D., Averyanova O.Yu.|
|Сleavage fabric – significant faсtor creating discrete hydrocarbon migration pathways in diagenetic to low metamorphic pelites|
|*The article is presented in English.
From the point of view of petroleum geology, the transformation experienced by pelitic rocks with petroleum potential in the regional burial process in the domain of diagenesis to low metamorphism past a certain point can by a significant risk factor - an important reduction of porosity-permeability, petroleum pathways disturbing, and over maturation of organic matter. The cleavage structures developed during the conversion into the new structural conditions can even produce open space volumes with crenulation distance spaces varying in the presented areas from 20 to 150 micrometers, spaces that could constitute discrete pathways for a variety of fluids. Certain terrains with a favourable petrogenetic profile (pelitic rocks with cleavage development and temperatures conditions not exceeding 100-150°C) may be considered as potential petroleum discrete pathways. For petroleum prospecting activity the previously described terrains could represent a possible interesting areas.
Keywords: pelitic rocks, crenulation distance space, cleavage fabric, discrete pathways for petroleum fluids, potential petroleum bearing area.
|article citation||Morariu D., Averyanova O.Yu. Сleavage fabric – significant faсtor creating discrete hydrocarbon migration pathways in diagenetic to low metamorphic pelites. Neftegazovaya Geologiya. Teoriya I Praktika, 2018, vol. 13, no. 1, available at: http://www.ngtp.ru/rub/9/10_2018.pdf|
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|Article # 32_2016||submitted on 07/31/2016 displayed on website on 09/28/2016|
|22 p.||Averyanova O.Yu., Morariu D.|
|Assessments complexity of petroleum systems hydrocarbon potential|
|The current level of hydrocarbon potential evaluation of unconventional hydrocarbon accumulations is analysed. The approaches to the evaluation of technically recoverable hydrocarbon resources from source rocks of various sedimentary basins are discussed, for this purpose the calculations based on parameters of selected petroleum systems and their geochemical characteristics are applied.
Keywords: petroleum system, source rocks, hydrocarbon technically recoverable resources, hydrocarbon potential evaluation.
|article citation||Averyanova O.Yu., Morariu D. Variativnost' otsenok uglevodorodnogo potentsiala neftegazovykh sistem [Assessments complexity of petroleum systems hydrocarbon potential]. Neftegazovaya Geologiya. Teoriya I Praktika, 2016, vol. 11, no. 3, available at: http://www.ngtp.ru/rub/6/32_2016.pdf|
Al Duhailan M. Petroleum-expulsion fracturing in organic-rich shales: genesis and impact on unconventional pervasive petroleum systems. - Colorado School of Mines, 2014 – 227 r.
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|Article # 19_2013||submitted on 05/15/2013 displayed on website on 06/10/2013|
|28 p.||Prischepa O.M., Averyanova O.Yu., Vysotskiy V.I., Morariu D.|
|Bakken Formation: geology, development history and petroleum potential|
|The Upper Devonian and Lower Mississipian unconventional (continuous) oil resource – Bakken Formation, one of the most distinctive stratigraphic sequences in the Williston Basin (underlying parts of Montana, North Dakota, Saskatchewan and Manitoba) in USA and Canada is investigated. The geological and geochemical characteristics of the Bakken-Lodgepole section and its petroleum system are discussed. The development history of Bakken Formation is outlined. The production rate from tight reservoirs of Bakken Formation has increased significantly due to the implementation of new horizontal drilling technology with multy-stage formation hydraulic fracturing.
Key words: tight reservoir, petroleum potential, horizontal drilling, petroleum system, shale, Bakken Formation.
|article citation||Prishchepa O.M., Averyanova O.Yu., Vysotskiy V.I., Morariu D. Formatsiya Bakken: geologiya, neftegazonosnost' i istoriya razrabotki [Bakken Formation: geology, development history and petroleum potential ]. Neftegazovaya Geologiya. Teoriya I Praktika, 2013, vol. 8, no. 2, available at: http://www.ngtp.ru/rub/9/19_2013.pdf|
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|Article # 3_2013||submitted on 11/28/2012 displayed on website on 01/16/2013|
|18 p.||Morariu D., Averyanova O.Yu.|
|Some aspects of oil shale - finding kerogen to generate oil*|
|*The article is presented in two languages, English and Russian.
Oil demand is predicted to continue to increase despite the high price of oil. The lagging supply increased the prices for oil and gas and a definitive oil replacement has still not been found. Huge oil shale resources discovered in the world, if developed, may increase petroleum supplies. Developing of oil shale needs the availability of low cost production; the greatest risks facing oil shale developing are higher production expenses and lower oil prices. There are several technologies for producing oil from kerogen bearing oil shale, by pyrolysis (heating, retorting). Oil shale is still technologically difficult and expensive to produce and the major impediment is cost. Developing oil shale accumulations means to face huge challenges, but an efficient oil shale development can be accomplished and an acceptable oil shale industry based on new technologies can be built nowadays.
Key words: shale, continuous accumulation, oil shale, shale oil, total organic carbon, Rock-Eval, reserves estimation, Fischer assay, mining and retorting, in situ retorting and extraction, in capsule extraction.
|article citation||Morariu D., Averyanova O.Yu. Nekotorye aspekty neftenosnosti slantsev: ponyatiynaya baza, vozmozhnosti otsenki i poisk tekhnologiy izvlecheniya nefti [Some aspects of oil shale - finding kerogen to generate oil]. Neftegazovaya Geologiya. Teoriya I Praktika, 2013, vol. 8, no. 1, available at: http://www.ngtp.ru/rub/9/3_2013.pdf|
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|Article # 51_2012||submitted on 04/23/2012 displayed on website on 09/27/2012|
|16 p.||Morariu D.|
|Contribution to hydrocarbon occurrence in basement rocks*|
|*The article is presented in English.
Generally considered as non-productive, the basement hydrocarbons reservoirs were for long time neglected by the exploration activity, however as a matter of fact in various areas of the world basement rocks represent important oil and gas reservoir. Hydrocarbons may be accumulated in any igneous, metamorphic or cataclastic rocks with secondary porosity (tectonic porosity and /or dissolution porosity). Basement cataclasites – fault related rocks, produced by brittle deformation at elevated strain rates - can develop an important secondary porosity. Cataclasis can overprint various igneous rocks and metamorphite and may play an important role in the final (total) porosity of the basement. Following the acceptance of igneous and metamorphic rocks as hydrocarbons reservoirs in various petroliferous regions throughout the world, the cataclasites can be considered aptly too to draw the attention of the exploration activity.
Key words: hydrocarbons, reservoirs, basement reservoirs, igneous rocks, metamorphic rocks, cataclasites, fault related rocks, brittle deformation, secondary porosity, exploration activity.
|article citation||Morariu D. Issledovanie skopleniy uglevodorodov v porodakh fundamenta [Contribution to hydrocarbon occurrence in basement rocks]. Neftegazovaya Geologiya. Teoriya I Praktika, 2012, vol. 7, no. 3, available at: http://www.ngtp.ru/rub/9/51_2012.pdf|
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|Article # 22_2009||submitted on 06/18/2009 displayed on website on 06/30/2009|
|14 p.||Morariu D., Noual V.|
|Cretaceus play - new exploration potential in the Eastern Georgia*|
|*The article is presented in English.
Georgian oil and gas fields belong to the Black Sea and Caspian Sea hydrocarbon provinces. The geology of Georgia is characterized by two foreland basins: Rioni in the west and Kartli/Upper Kura in the east. They are bounded to the north and south by orogenic belts with complex internal nappes configuration: respectively, the Greater Caucasus and Adzharia-Trialet. In the Rioni Basin, the source rock is represented by the Malm bituminous shales and carbonates and the traps are either anticlines/faulted anticlines or stratigraphic. Hydrocarbon migration occurred in Neocomian time and during the Oligocene-Miocene. In the Kura Basin, the most prolific source rocks are Upper Jurassic, Upper Eocene and Oligocene clays. Oil generation by the Oligocene-Lower Miocene Maykop Fm. started in Lower Pliocene. Some 18 oil and gas accumulations have been discovered in Georgia, including 15 in the Kura Basin, amongst which the 236 (P+P) MMbbl Samgori-Patardzeuli and 58 MMbbl (P+P) Ninotsminda Eocene fields are the best known. The Georgian fields are ageing and exploration of the new Upper Cretaceous carbonate play is seen as a means to stop the rapid decline of the country reserves. Successful analogues are known on the northern side of the Caucasus and two operators, CanArgo and Frontera, started investing in both wildcats and seismic acquisition to further define this play on the southern side of the Caucasus. The first well, Manavi 11, successfully demonstrated the validity of the concept when it flowed good quality oil and gas. The Manavi structure is currently (2006) y being appraised, while more prospect locations are being prepared with modern seismic coverage and are awaiting investors to participate in drilling activity. The new Cretaceous play could give new perspectives for the future exploration activity in the Eastern Georgia.
Key words: Petroleum geology, tectonics, play, Mesozoic, Cenozoic, Rioni Basin, Kura Basin, Terek-Caspian Basin, Greater Caucasus.
|article citation||Morariu D., Noual V. Cretaceus play - new exploration potential in the Eastern Georgia // Neftegazovaya Geologiya. Teoriya I Praktika. – 2009. - V.4. - #2.- http://www.ngtp.ru/rub/4/22_2009.pdf|