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Geochemical characteristics and origin of gases from the Upper,Lower Paleozoic and the Mesozoic reservoirs in the Ordos Basin,China

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Science China Earth Sciences 2008年第S1期51卷 183-194页

作者： HU AnPing 1 ,Li Jian 2.,ZHANG WenZheng 3 ,LI ZhiSheng 2.,HOU Lu 4 &LIU QuanYou 5 1 Department of Earth Sciences,Zhejiang University,Hangzhou 31002.,China 2.Langfang Branch,Reasearch Institute of petroleum Exploration and Development,PetroChina,Langfang 065007,China 3 Institute of Exploration and Development,PetroChina Changqing Oilfield company,Xi’an 71002.,China 4 University of petroleum,Beijing102.49,China 5 PetroChina Research Institute of petroleum Exploration and Development,Beijing 100083,China 1. Department of Earth Sciences Zhejiang University Hangzhou 310027 China2. Langfang Branch Reasearch Institute of Petroleum Exploration and Development PetroChina Langfang 065007 China3. Institute of Exploration and Development PetroChina Changqing Oilfield Company Xi’an 710021 China4. University of Petroleum Beijing 102249 China5. PetroChina Research Institute of Petroleum Exploration and Development Beijing 100083 China

The Ordos Basin,the second largest sedimentary basin in China,contains the broad distribution of natural gas *** far,several giant gas fields have been discovered in the Upper and Lower Paleozoic in this basin,each having over 1000×10 8 m 3 of proven gas reserves,and several gas pools have also been discovered in the *** paper collected the data of natural gases and elucidated the geochemical characteristics of gases from different reservoirs,and then discussed their *** hydrocarbons preserved in the Upper Paleozoic,the elevatedδ13C values of methane,ethane and propane indicate that the gases would be mainly coal-formed gases;the singular reversal in the stable carbon isotopes of gaseous alkanes suggests the mixed gases from humic sources with different *** the Lower Paleozoic,theδ13C 1 values are mostly similar with those in the Upper Paleozoic,but theδ13C 2.andδ13C 3 values are slightly lighter,suggesting that the gases would be mixing of coal-type gases as a main member and oil-type *** are multiple reversals in carbon isotopes for gaseous alkanes,especially abnormal reversal for methane and ethane(i.e.δ13C 1 >δ13C 2.),inferring that gases would be mixed between high-mature coal-formed gases and oil-type *** the Mesozoic,the δ13Cvalues for gaseous alkanes are enriched in 12.,indicating that the gases are mainly derived from sapropelic sources;the carbon isotopic reversal for propane and butane in the Mesozoic is caused by microbial oxidation and mixing of gases from sapropelic sources with different *** contrast to the Upper Paleozoic gases,the Mesozoic gases are characterized by heavier carbon isotopes of iso-butane than normal butane,which may be caused by gases generated from different kerogen types. Finally,according toδ13C 1 -Ro relationship and extremely low total organic carbon contents,the Low Paleozoic gases would not be generated from the Ordovician source as a main gas source,bycontrast, the Upper Pale

关键词： Ordos Basin natural gas chemical composition carbon isotope genesis

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Genetic models of structural traps related to normal faults in the Putaohua Oilfield,Songliao Basin

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petroleum Science 2008年第4期5卷 302-307页

作者： Sun Simin Wu Xinsong Liu Hongtao Wang Changsheng School of Resources and Information technology China University of Petroleum Beijing 102249 China Oil Recovery Plant No.7 Daqing Oilfield Company PetroChina Daqing Heilongjiang 163517 China

The Putaohua Oilfield is a fault-prolific area and the faults have close relation with structural traps. The genetic models of the structural traps in the Putaohua Oilfield can be divided into two types： individual fault model and multi-fault interaction model. This is based on the description of displacement distribution of typical individual normal faults, the geometry of the footwall and hanging wall, and the analysis of the interaction between faults and the corresponding change in geometry when the faults grow. The individual fault model is that the displacement reaches a maximum at or near the center of fault and decreases toward the fault tips, so a half-graben is formed on the hanging wall of the fault and a half- anticline is formed on the footwall because of the isostatic process. The multi-fault interaction model is that during the growth of faults, they overlap and interact with each other, and accommodation zones are formed in the overlapping segments. The accommodation zones are favorable targets for hydrocarbon exploration, and the trap characteristics are dependent The multi-fault interaction model can be subdivided on the extent of overlap and occurrence of faults. into three types： synthetic accommodation zone, convergent accommodation zone and divergent accommodation zone. Hydrocarbon migration and accumulation models of each type have been developed. The hydrocarbon migration and accumulation models of the traps with different genetic models have their own characteristics in the different stages of fault growth.

关键词： Songliao Basin Putaohua Oilfield accommodation zone normal fault growth structural trap

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Commercial Application of OCT-M technology for Selective Hydrodesulfurization of Gasoline

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China petroleum Processing & Petrochemical technology 2006年第4期8卷 15-21页

作者： Yi Xiqing1, 2.Li Bin2.Xiao Fengliang2.Zhao Leping3 (1 Xi’an ShiyouUniversity, Xi’an 710000 2.SINOPEC Luoyang Branch company 3 Fushun Research Institute of petroleum and Petrochemicals) Xi\'an ShiyouUniversity Xi\'an 710000 SINOPEC Luoyang Branch company

This article analyzed the problems arising from retrofitting the 800 kt/a virgin diesel hydrofining unit into a 1.0 Mt/a OCT-M gasoline HDS unit at the refinery of Luoyang Petrochemical company, and the optimized measures aimed at improvements in operation of HDS unit. The preliminary calibration results have indicated the high desulfurization rate and good selectivity of the HDS technology to fulfill the demand of Luoyang Petrochemical company for product quality upgrading with the targets of technical revamp fully implemented.

关键词： gasoline selective hydrodesulfurization mercaptan octane number

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Numerical simulation of non-Archie electrophysical property of saturated rock with lattice Boltzmann method

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petroleum Science 2009年第1期6卷 24-28页

作者： Yue Wenzheng Tao Guo Liu Dongming Yang Wendu State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China Key Laboratory of Earth Prospecting and Information technology China University of Petroleum Beijing 102249 China Research Centre of Well Logging CNPC Key Laboratory of Well Logging China University of Petroleum Beijing 102249 China CNPC Logging Changqing Business Division Xi＇an Shaanxi 710201 China Sichuan petroleum Administration Logging company Ltd. CNPC Chongqing 401147 China

The electrophysical property of saturated rocks is very important for reservoir identification and evaluation. In this paper, the lattice Boltzmann method （LBM） was used to study the electrophysical property of rock saturated with fluid because of its advantages over conventional numerical approaches in handling complex pore geometry and boundary conditions. The digital core model was constructed through the accumulation of matrix grains based on their radius distribution obtained by the measurements of core samples. The flow of electrical current through the core model saturated with oil and water was simulated on the mesoscopic scale to reveal the non-Archie relationship between resistivity index and water saturation （I-Sw）. The results from LBM simulation and laboratory measurements demonstrated that the I-Sw relation in the range of low water saturation was generally not a straight line in the log-log coordinates as described by the Archie equation. We thus developed a new equation based on numerical simulation and physical experiments. This new equation was used to fit the data from laboratory core measurements and previously published data. Determination of fluid saturation and reservoir evaluation could be significantly improved by using the new equation.

关键词： Non-Archie relation digital core model lattice Boltzmann method numerical simulation rock physical experiment

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CORRELATION BETWEEN MICROSTRUCTURE AND STRESS CORROSION CRACKING SUSCEPTIBILITY OF 2.91 ALLOY

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Acta Metallurgica Sinica(English Letters) 1992年第12期5卷 483-488页

作者： LJ Benshun Harbin Institute of technology,Harbin,China CHEN Xiangping lianghan petroleum Institute,Wuhan,China Harbin Inst of technology Harbin China

The stress corrosion cracking(SCC) susceptibility of an Al-Li-Cu-Mg-Zr alloy(2.91), heat-treated under different regime,has been investigated hy means of tensile tests at slow strain *** microstructure has been examined with *** deformation characteristic has also been *** stress corrosion resistance of the alloy was revealed to be mainly affected by the covering rate of T_2.phase over grain boundaries and by the average distance between T_2.phase particles. SCC resistance can be obviously improved by predeforming the alloy at room temper- ature to reduce the precipitation of T_2.phase along grain boundaries.

关键词： AI-Li alloy stress corrosion microstructure pre-deformation

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Assessment on Commercial Application of Novel S-RHT catalysts

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China petroleum Processing & Petrochemical technology 2004年第1期6卷 1-8页

作者： Bian Fengming Wen Huixin(East-China University of Sceince and technology, Shanghai 2.02.7 2.SINOPEC MaomingBranch company, Maoming 52.011) East-China Univ. of Sci./technology Shanghai 200237 China SINOPEC Maoming Branch company Maoming 525011 China

This article refers to the commercial application assessment of the novel S-RHT *** application outcome has shown that the catalysts loading was reduced with its performance kept at the original level at the initial and middle stages of operation. The performance of catalysts at the end of operation was analyzed, and factors affecting the performance of the novel catalysts at the end of run were identified to facilitate further improvement of the said catalysts.

关键词： resid hydrotreating S-RHT catalyst commercial application evaluation

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Anisotropic characteristics of electrical responses of fractured reservoir with multiple sets of fractures

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petroleum Science 2009年第2期6卷 127-138页

作者： Shen Jinsong Su Benyu Guo Naichuan Department of Geophysics School of Resource and Information Technology China University of Petroleum Beijing 102249 China Key Laboratory of CNPC Geophysical Exploration China University of Petroleum Beijing 102249 China State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China

In fractured reservoirs, the fractures not but also form the main flow channels which connect productivity of reservoirs. However, because of the only provide the storage space for hydrocarbons, the pores of the matrix, so fractures dominate the heterogeneity and randomness of the distribution of fractures, exploration and evaluation of fractured reservoirs is still one of the most difficult problems in the oil industry. In recent years, seismic anisotropy has been applied to the assessment of fractured formations, whereas electrical anisotropy which is more intense in fractured formations than seismic anisotropy has not been studied or used so extensively. In this study, fractured reservoir models which considered multiple sets of fractures with smooth and partly closed, rough surfaces were established based on the fractures and pore network, and the vertical and horizontal electrical resistivities were derived as a function of the matrix and fracture porosities according to Ohm＇s law. By using the anisotropic resistivity equations, variations of the electrical anisotropy of three types of fractured models under the conditions of free pressure and confining pressure were analyzed through the variations of the exerted pressure, matrix porosity, fracture aperture and formation water resistivity. The differences of the vertical and horizontal resistivities and the anisotropy between the connected and non-connected fractures were also analyzed. It is known from the simulated results that an increase of the confining pressure causes a decrease of electrical anisotropy because of the elasticity of the closed fractures and the decrease of the fracture aperture. For a fixed fracture porosity, the higher the matrix porosity, the weaker the electrical anisotropy in the rock formation.

关键词： Fractured reservoir partly closed fracture electrical anisotropy fracture roughness

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Fabrication of copper (Ⅰ) nitride nanorods within SBA-15 by metal organic chemical vapor deposition

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Science China(Technological Sciences) 2009年第2期52卷 352-356页

作者： ZHANG Ying1,2. Frank Leung-Yuk Lam2. YAN ZiFeng1 & HU XiJun2.1 School of Chemistry & Chemical Engineering, China University of petroleum, Dongying 2.7061, China 2.Department of Chemical Engineering, Hong Kong University of Science and technology, Hong Kong, China School of Chemistry & Chemical Engineering China University of Petroleum Dongying China Department of Chemical Engineering Hong Kong University of Science and Technology Hong Kong China

Copper (Ⅰ) nitride nanorods grown in channels of mesoporous silica SBA-15 by chemical vapor deposition method has been synthesized. The morphology and microstructure of the resulting product were characterized by XRD patters, TEM images, EDS analysis and Raman spectra. The XRD and TEM revealed that the Cu3N phase was confined in channels of SBA-15 forming continuous nanowires with 6 nm around and hundreds of nanometers in length. Raman spectra of the final product and pure Cu3N showed peaks shift due to the quantum confinement effect of the nanowires. This preparation methodology only requires a mild working condition and is capable of template synthesis of other binary nitride nanostructures with controlled morphology inside the channels of mesoporous materials.

关键词： nanorods copper nitride CVD SBA-15

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Limitation of fault-sealing and its control on hydrocarbon accumulation——An example from the Laoyemiao Oilfi eld of the Nanpu Sag

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petroleum Science 2008年第4期5卷 295-301页

作者： Jiang Zhenxue Dong Yuexia Li Hongyi Liu Luofu Liu Guangdi Li Xiaoying Basin and Reservoir Research Center China University of Petroleum Beijing 102249 China State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Research Institute of Exploration and Development Jidong Oilfield PetroChina Tangshan Hebei 063004 China School of Resources and Information technology China University of Petroleum Beijing 102249 China

Based on previous studies on the internal structures of fault belts, the fault belts in the Laoyemiao Oilfield of the Nanpu Sag can be divided into three units, a crushed zone, an upper induced fracture zone and a lower induced fracture zone according to the log response characteristics. The upper induced fracture zone is characterized by the development of pervasive fractures and has a poor sealing or non-sealing capability. It therefore can act as pathways for hydrocarbon migration. The lower induced fracture zone consists of fewer fractures and has limited sealing capability. The crushed zone has a good sealing capability comparable to mudstone and can thus prevent lateral migration of fluid. Through physical modeling and comparing laboratory data with calculated data of oil column heights of traps sealed by faults, it is concluded that the fault-sealing capability for oil and gas is limited. When the oil column height reaches a threshold, oil will spill over from the top of reservoir along the lower induced fracture zone under the action of buoyancy, and the size of reservoir will remain unchanged. Analysis of the formation mechanisms of the fault-sealed reservoirs in the Nanpu Sag indicated that the charging sequence of oil and gas in the reservoir was from lower formation to upper formation, with the fault playing an important role in oil and gas accumulation. The hydrocarbon potential in reverse fault-sealed traps is much better than that in the consequent fault-sealed traps. The reverse fault-sealed traps are favorable and preferred exploration targets.

关键词： Limitation of fault-sealing fault belt oil column height hydrocarbon accumulation Nanpu Sag

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FT-IR Spectroscopic Investigation of Co-adsorption of Acetonitrile and CO on Fresh Mo_2./Al_2._3 catalyst

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China petroleum Processing & Petrochemical technology 2009年第4期11卷 59-61页

作者： Zhang Jing~1 Wu Weicheng~2.Jin Ziming~1 (1.School of Chemistry and Materials Science,Liaoning University of petroleum & Chemical technology,Fushun 113001 2.Liaoning Academy of Nanomaterials Development Co.Ltd.) School of Chemistry and Materials Science Liaoning University of Petroleum and Chemical Technology Fushun 113001 China Liaoning Academy of Nanomaterials Development Co. Ltd. China

The adsorption of acetonitrile and its co-adsorption with CO on fresh Mo_2./Al_2._3 catalyst have been studied by insitu FT-IR *** adsorbed CH_3CN and CH_3CH_2.H_2.were formed after CH_3CN adsorption on the Mo_2./ Al_2._3 *** appearance of a strong band at 1578 cm^(-1) indicates that CH_3CN was reactive with hydrogen on the Mo_2./Al_2._3 catalyst.

关键词： Mo_2./Al_2._3 catalyst FT-IR spectroscopy CO acctonitrile

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