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Evidence of Oil Sources and Migration in Triassic-Jurassic Reservoirs in the South Tianhuan Depression of the Ordos Basin, China Based on Analysis of Biomarkers and nitrogen-Bearing compounds

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Acta Geologica Sinica(English Edition) 2014年第6期88卷 1798-1810页

作者： ZHAO Yande YAO Jingli SUN Bainian Duan Yi DONG Chong DENG Xiuqing LIU Luofu School of Earth Sciences and Key Laboratory of Mineral Resources in Western China (Gansu Province) Lanzhou University Petro China Changqing Oil Field Company National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields CNPC Key Laboratory of Petroleum Resources Research Institute of Geology and Geophysics Chinese Academy of Sciences China University of Petroleum

The Ordos Basin is an important intracontinental sedimentary basin in western China for its abundant Mesozoic crude oil resources. The southern part of the Tianhuan Depression is located in the southwestern marginal area of this Basin, in which the Jurassic and Triassic Chang-3 are the main oil-bearing strata. Currently, no consensus has been reached regarding oil source and oil migration in the area, and an assessment of oil accumulation patterns is thus challenging. In this paper, the oil source, migration direction, charging site and migration pathways are investigated through analysis of pyrrolic nitrogen compounds and hydrocarbon biomarkers. Oil source correlations show that the oils trapped in the Jurassic and Chang-3 reservoirs were derived from the Triassic Chang-7 source rocks. The Jurassic and Chang-3 crude oils both underwent distinct vertical migration from deep to shallow strata, indicating that the oils generated by Chang-7 source rocks may have migrated upward to the shallower Chang-3 and Jurassic strata under abnormally high pressures, to accumulate along the sand bodies of the ancient rivers and the unconformity surface. The charging direction of the Jurassic and Chang-3 crude oils is primarily derived from Mubo, Chenhao, and Shangliyuan, which are located northeast of the southern Tianhuan Depression, with oils moving toward the west, southwest, and south. The results show that an integration of biomarker and nitrogen-bearing compound analyses can provide useful information about oil source, migration, and accumulation.

关键词： oil source nitrogen compound migration Tianhuan Depression Ordos Basin

Characteristics of Oil Sources from the Chepaizi Swell,Junggar Basin,China

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Acta Geologica Sinica(English Edition) 2010年第5期84卷 1209-1219页

作者： LIU Luofu KUANG Jun WANG Ping CHEN Zhijun WANG Weibin ZHAO Yande WU Lin JIN Jun WANG Weili MENG Jianghui ZHOU Jieli LIU Guodong State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Basin and Reservoir Research Center China University of Petroleum （Beijing） Changping Beijing 102249 China PetroChina Xinjiang Oil Field Company Karamay 834000 China

So far there has been no common opinion on oil source of the Chepaizi swell in the Junggar Basin. Therefore, it is difficult to determine the pathway system and trend of hydrocarbon migration, and this resulted in difficulties in study of oil-gas accumulation patterns. In this paper, study of nitrogen compounds distribution in oils from Chepaizi was carried out in order to classify source rocks of oils stored in different reservoirs in the study area. Then, migration characteristics of oils from the same source were investigated by using nitrogen compounds parameters. The results of nitrogen compounds in a group of oil/oil sand samples from the same source indicate that the oils trapped in the Chepaizi swell experienced an obvious vertical migration. With increasing migration distance, amounts and indices of carbazoles have a regular changing pattern （in a fine linear relationship）. By using nitrogen compounds techniques, the analyzed oil/oil sand samples of Chepaizi can be classified into two groups. One is the samples stored in reservoir beds of the Cretaceous and Tertiary, and these oils came from mainly Jurassic source rock with a small amount of Cretaceous rock; the other is those stored in the Jurassic, Permian and Carboniferous beds, and they originated from the Permian source. In addition, a sample of oil from an upper Jurassic reservoir （Well Ka 6）, which was generated from Jurassic coal source rock, has a totally different nitrogen compound distribution from those of the above-mentioned two groups of samples, which were generated from mudstone sources. Because of influence from fractionation of oil migration, amounts and ratios of nitrogen compounds with different structures and polarities change regularly with increasing migrating distance, and as a result the samples with the same source follow a good linear relationship in content and ratio, while the oil samples of different sources have obviously different nitrogen compound distribution owing to diffe

关键词： nitrogen compound oil source source rock oil migration Chepaizi swell Junggar Basin

Process Optimization of RTS Technology for Ultra-Low Sulfur Diesel

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China Petroleum Processing & Petrochemical Technology 2021年第3期23卷 104-111页

作者： Ge Panzhu Ding Shi Xi Yuanbing Zhang Le Nie Hong Li Dadong SINOPEC Research Institute of Petroleum Processing Beijing 100083

The RTS technology can produce ultra-low sulfur diesel at lower costs using available hydrogenation catalyst and ***,with the increase of the mixing proportion of secondary processed diesel fuel in the feed,the content of nitrogen compounds and polycyclic aromatic hydrocarbons in the feed increased,leading to the acceleration of the deactivation rate of the primary catalyst and the shortening of the service *** order to fully understand the reason of catalyst deactivation,the effect of mixing secondary processed diesel fuel oil on the operating stability of the catalyst in the first reactor was investigated in a medium-sized fixed-bed hydrogenation *** results showed that the nitrogen compounds mainly affected the initial activity of the catalyst,but had little effect on the stability of the *** PAHs had little effect on the initial activity of the catalyst,but could significantly accelerate the deactivation of the *** with the analysis of the reason of catalyst deactivation and the study of RTS technology,the direction of RTS technology process optimization was put forward,and the stability of catalyst was improved obviously after process optimization.

关键词： RTS technology nitrogen compound polycyclic aromatic hydrocarbons catalyst deactivation process optimization

Ionic Liquid Assisted Extraction of nitrogen and Sulphur-Containing Air Pollutants from Model Oil and Regeneration of the Spent Ionic Liquid

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Journal of Environmental Protection 2011年第6期2卷 796-802页

作者： Ikenna Anugwom Paivi Maki-Arvela Tapio Salmi Jyri-Pekka Mikkola Industrial Chemistry and Reaction Engineering Process Chemistry CentreAbo Akademi UniversityTurkuFinland Technical Chemistry Department of ChemistryChemical-Biological CenterUmea UniversityUmeaSweden

Removal of air pollutants, such as nitrogen and sulphur containing compounds from a model oil (dodecane) was studied. An ionic liquid (1-ethyl-3-methylimidazolium chloride [C2mim] [Cl]) was used as an extractant. Liquid-liquid extraction by using 1-ethyl-3-methylimidazolium chloride [C2mim] [Cl] was found to be a very promising method for the removal of N- and S-compounds. This was evaluated by using a model oil (dodecane) with indole as a neutral nitrogen compound and pyridine as a basic nitrogen compound. Dibenzothiophene (DBT) was used as a sulphur compound. An extraction capacity of up to 90 wt% was achieved for the model oil containing pyridine, while only 76 wt% of indole in the oil was extracted. The extraction capacity of a model sulphur compound DBT was found to be up to 99 wt%. Regeneration of the spent ionic liquid was carried out with toluene back-extraction. A 1:1 toluene-to-IL wt ratio was performed at room temperature. It was observed that, for the spent ionic liquid containing DBT as a model compound more than 85 wt% (corresponding 3852 mg/kg) could be removed from the oil. After the second regeneration cycle, 86 wt% of the DBT was recovered from the ionic liquid to toluene. In the case of indole as the nitrogen containing species, more than 99 wt%, (corresponding to 2993 mg/kg) of the original indole was transferred from the model oil to the ionic liquid. After the first-regeneration cycle of the spent ionic liquid, 54 wt% of the indole–in-IL was transferred to toluene. Thus, both extractions of nitrogen and sulphur model compounds were successfully carried out from model oil and the back-extraction of these compounds from the ionic liquids to toluene demonstrated the proved the concept of the regeneration point of view.

关键词： Ionic Liquids Extraction Air Pollutants nitrogen compound Sulfur compounds

Dominant geological element of migration and accumulation about Silurian oil reservoirs in central Tarim

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Science Bulletin 2007年第S1期 236-243页

作者： LI YuPing1,2, CHEN LiXin3, WANG Yong3, YANG HaiJun3, LI Mei3, SHEN YinMin3, HU TaiPing3 & LI XinSheng3 1 Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Beijing 100083, China 2 School of Resource and Safety Engineering, China University of Mining and Technology, Beijing 100083, China 3 Research Institute of Exploration and Development of Tarim Oilfield Company, PetroChina, Korla 841000, China

Based on the migration track of the Silurian oil pools along the faults in central Tarim by the nitrogen compounds and the maturity parameters of saturated hydrocarbon and aromatic hydrocarbon, the formation of the Silurian oil pools was totally concerned with vertical migration that faults were the dominant migration channels. The comprehensive analysis shows that the dominant geological element, which contributed to the migration and accumulation of the Silurian oil pools in central Tarim, was the strike-slip fault, which developed from Ordovician to Permian. The future work will focus on conducting a more intensive study of the formation, evolution and distribution of the strike-slip faults for making sure of favorable hydrocarbon accumulation and favorable exploration targets.

关键词： hydrocarbon accumulation vertical migration petroleum population nitrogen compound fault Tarim Basin