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石油勘探与开发 1994年第2期 110-118页

作者： Hu Jian-yi Xu Shu-bao Don Li-rong(research institute of Petroleum {2. and development, CNPC.beijing, china, 100083)

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ＰＥＴＲＯＬＩＦＥＲＯＵＳＰＲＯＶＩＮＣＥＡＮＤＲＥＳＯＵＲＣＥＰＯＴＥＮＴＩＡＬＯＦＴＨＥＮＯＲＴＨＥＡＳＴＡＳＩＡＴＨＥＭＯＳＴＰＲＯＳＰＥＣＴＩＶＥＮＥＷ──ＴＨＥＭＯＳＴＰＲＯＳＰＥＣＴＩＶＥＮＥＷＰＲＯＶＩＮＣＥＩＮＡＳＩＡＨｕＪｉａｎ－ｙ...

关键词： petroliferous basin folded belt (Northeast Asia) (Siberian Plate) (Sino-Korean Plate)

Geochemical characteristics and source rock of Ordovician gas reservoir, Changqing Gasfield

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Chinese Science Bulletin 1999年第20期44卷 1917-1920页

作者： XIA Xinyu, ZHAO Lin, ZHANG Wenzheng and LI Jianfengresearch institute of Petroleum {2. and development, beijing 100083, china Changqing Petroleum {2. Bureau, XL an 71002. , china research institute of Petroleum {2. and development Beijing China Changqing Petroleum exploration Bureau Xi’an China

Carbon isotopic composition of methane in Ordovician gas reservoir in the Changqing Gasfield can reflect the dominance of Upper Paleozoic coal-type gas despite its high mature degree. The 12.-rich ethane in the Ordovician reservoir (δ13C2.2.‰), known as a marker as oil-type gas, does not indicate the Ordovician marine carbonate as main source rock, it is be-

关键词： methane ethane carbon isotope natural gas genesis. Changqing Gasfield.

Mechanism of catalytic hydropyrolysis of sedimentary organic matter with MoS_2

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Petroleum Science 2011年第2期8卷 134-142页

作者： He Kun Zhang Shuichang Mi Jingkui Chen Jianping Cheng Lei Petroleum Geology research and Central Laboratory Research Institute of Petroleum Exploration and Development （RIPED） PetroChina Beijing 100083 China CNPC Key Laboratories for Petroleum Geochemistry Beijing 100083 China

MoS2.was used as an efficient catalyst for hydropyrolysis （Hypy） of three samples of sedimentary organic matter with different maturities. Through comparison with Soxhlet extraction （SE）, it was found that MoS2.catalytic Hypy can remarkably promote the yields of total chloroform extracts, saturates, aromatics, hopanes and steranes. In addition, the difference of biomarker parameters indicated that isomerization of covalently-bound biomarkers is much more difficult than their free counterparts. Meanwhile, the high conversion of total organic carbon （TOC） in MoS2.catalytic Hypy of organic matter proved that the presence of dispersed molybdenum sulfide accelerated the breaking of C-C bonds and the release of hydrocarbons. To address the catalytic mechanism, a series of control experiments based on free Hypy and catalytic Hypy were conducted. The results showed that the calculated atomic ratio of carbon conversion/hydrogen conversion for catalytic Hypy was much larger than the presumed value of 1/2. indicating that intensive hydrogenation took place and significantly influenced the distribution of liquid products. Analysis of stable hydrogen isotope data, infrared spectra and m/z 83 ion chromatograph of the saturate fraction further confirmed this hypothesis. The difference of S content changing （AS） between catalyst-free Hypy and catalytic Hypy, and the thermal characteristics of the catalyst, indicated that active H2. was definitely generated and it probably initiated free radical reactions in the early stage of hydropyrolysis of organic matter.

关键词： Catalytic hydropyrolysis molybdenum disulfide kerogen coal Soxhlet extraction,biomarkers

The special sealing mechanism of caprock for Quaternary biogenetic gas in Sanhu area,Qaidam Basin,china

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Science china Earth Sciences 2008年第S1期51卷 45-52页

作者： LI Jian 1 ,YAN QiTuan 1 ,ZHANG Ying 1 ,LIU GuangDi 2.&WANG XiaoBo 1 1 research institute of Petroleum {2. and development-Langfang,Langfang 065007,china 2.University of Petroleum,beijing 102.49,china research institute of Petroleum {2. and development-Langfang Langfang China University of Petroleum Beijing China

The Quaternary biogenetic gas reservoirs in the east of Qaidam Basin have many characteristics such as late forming time,shallow burial depth,low diagenetic grade,high porosity and high permeability and so *** cannot be considered as caprock according to the traditional evaluation ***, the large scale and high efficient biogenetic gas reservoirs of the Qaidam Basin are really formed under these kinds of caprocks,so it does have some specialty in its sealing *** at the special sealing mechanism,some simulating experiments have been *** research results show that the sealing ability of biogenetic gas caprock is related with water saturation,the caprock that is saturated with salt water can effectively block seepage and ***,the multiple reservoir-caprock groups have accumulated sealing effect,causing the formation of big gas *** evaluation method with traditional caprock parameters cannot be adopted in evaluating the study area.

关键词： Qaidam Basin biogenetic gas caprock sealing mechanism diffusion water saturation accumulated sealing

Isotopic compositions of small shelly fossil Anabarites from Lower Cambrian in Yangtze Platform of South china: Implications for palaeocean temperature

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Progress in Natural Science:Materials International 2007年第10期17卷 1185-1191页

作者： Chen Yongquan1,2. Jiang Shaoyong1, Ling Hongfei1, Yang Jinghong1 and Wan Defan3(1. State Key Laboatory for Mineral Deposits research and Center for Marine Geochemistry research, Department of Earth Sciences, Nanjing University, Nanjing 2.0093, {2. 2. Tarim Oilfield Company exploration & development research institute, Ku’erle 841000, {2. 3. institute of Mineral Resources, Chinese Academy of Geological Sciences, beijing 100037, {2.) State Key Laboratory for Mineral Deposits research Department of Earth Sciences Nanjing University Nanjing 210093 China exploration and development {2. institute Tarim Oilfield Company Ku'erle 841000 China institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China

Anabarites belong to small shelly fossils (SSF), which occur widely in the Lower Cambrian strata of Yangtze Platform in South china. They are phosphate shell in composition and represent the earliest stage of the Cambrian bioradiation of Bilateria, the so-called "Cambrian Explosion". In this study, we attempted to separate Anabarites fossils from Lower Cambrian dolostones, and we obtained samples of both the fossils (SSF) and the granular phosphates (GP). Isotopic analyses were performed on samples of SSF, GP, and matrix dolostone (DH-2.). The results showed that the δ30Si values of the quartz filling in fossils celoms, and the siliceous materials in granular phosphates are -0.6‰ and -0.7‰, which is different from normal sedimentary siliceous rocks from the Lower Cambrian strata (0—0.7‰) as reported by Li et al., but is consistent with the data for siliceous rocks and cherts of submarine hydrothermal origin. It is likely that a later hydrothermal replacement could have taken place in the SSF-bearing sedimentary rocks. The oxygen isotope values of the phosphate of SSF and GP are 16.8‰ and 17.0‰, respectively. These are significantly higher than the Neoproterozoic phosphate ores (10.9‰—13.9‰) as reported by Ling et al., hence, late diagenesis and hydrothermal replacement may not have caused a significant change in the oxygen isotope compositions of the small shelly fossils, and the calculated temperatures (2..4—2..3℃) for palaeo-seawater using a SSF phosphate oxygen isotope thermometer are therefore considered here as the upper limit of seawater temperature in the Early Cambrian ocean of the Yangtze Platform.

关键词： Anabarites oxygen isotope silicon isotope paleo-temperature.

Major factors controlling the formation of middle and large marine carbonate stratigraphic fields

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Science Bulletin 2007年第S1期 44-53页

作者： ZOU CaiNeng & TAO ShiZhen research institute of Petroleum {2. and development, petrochina, beijing 100083, china

Marine carbonate oil and gas fields have become an important exploration area in china and even across the world. Their formation, distribution and enrichment are special owing to the complexity of the deposition, diagenesis and accumulation, which is caused by the multiplicity of the carbonate depositional environments and facies, huge extensions of formation time and burial depth, complication of diagenetic evolution, heterogeneity as well as the {2. of pores, caves and fractures affected by various factors. Oil and gas accumulations in carbonate rocks are not strictly controlled by the second-order structure belt. Most of them, under certain structural settings, are controlled by sedimentary diagenesis and its favorable facies. The hydrocarbon reservoir type is predominantly stratigraphic. Based on the worldwide researches of carbonate fields, the paper concludes that 7 main factors control the formation and distribution of middle-large marine carbonate stratigraphic fields.

关键词： carbonates stratigraphic reservoir accumulation condition main controlling factors

Forming Mechanism of High Quality Reservoirs of Tertiary in the Southern Margin of Junggar Basin and Forecasting Before Drilling

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地学前缘 2009年第S1期16卷 139-140页

作者： Lihong Song,Shaoqiang Sui Sedimentary Reservoir Key Laboratories of Experimental Center,exploration and development {2. institute of china Petroleum,beijing 100083.china.

Tertiary Junggar Basin has been subjected to a shrinking *** by the Yanshan orogeny, especially the Himalayan movement,the Tianshan Mountain continued to rise,leading the southern margin to the sedimentary environment with steep slope and speed *** major depositional facies in Ziniquanzi Formation is generally a set of delta under the setting of lake transgression,belonging to single deposi-

关键词： Junggar Basin Teritary reservoir heavy mineral diagenesis

Free Radicals in Organic Matter for Thermal History Reconstruction of Carbonate Succession

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Acta Geologica Sinica(English Edition) 2007年第4期81卷 605-613页

作者： QIU Nansheng LI Huili JIN Zhijun and ZHU Yinkang 1 State Key Laboratory of Petroleum Resource and Prospecting,china University of Petroleum,beijing 102.49 2.Basin and Reservoir {2. Center,china University of Petroleum,beijing 102.49 3 institute of Petroleum exploration and development,SINOPEC,beijing 100083 china Univ Petr State Key Lab Petroleum Resource & Prospecting Beijing 102249 Peoples R China china Univ Petr Basin Reservoir Res Ctr Beijing 102249 Peoples R China SINOPEC Inst Petr Explorat & Dev Beijing 100083 Peoples R China

Geothermometer is one of the most useful methods to reconstruct the thermal history of sedimentary basins. This paper introduces the application of free radicals concentration of organic matter as a thermal indicator in the thermal history reconstruction of carbonate succession, based on anhydrous thermal simulation results of type I and H1 kerogen. A series of free radicals data are obtained under thermal simulation of different heating temperatures and times, and quantitative modds between free radical concentration （Ng） of organic matter and time-temperature index （TTI） for types I and type H1 kerogen are also obtained. This *** relation was used to model the Ordovician thermal gradients of Well TZ12.in the Tarim Basin. The modeling result is corresponding to the results obtained by apatite fission track data and published data. This new method of thermal history reconstruction will be benefit to the hydrocarbon generation and accumulation study and resource assessment of carbonate succession.

关键词： carbonate succession geothermometer free radicals of organic matter apatite fission track thermal history

Genetic types and distribution of shallow-buried natural gases

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Petroleum Science 2010年第3期7卷 347-354页

作者： Gao Yang Jin Qiang Zhu Guangyou College of Geo-resources and Information China University of Petroleum Dongying Shandong 257061 China Petroleum exploration and development {2. PetroChina Beijing 100083 China

Great volumes of shallow-buried （〈2.000 m） natural gases which are mainly composed of biogases and low-mature gases have been found in the Mesozoic-Cenozoic sedimentary basins in china. Many shallow gas reservoirs in china are characterized by coexistence of biogas and low-mature gas, so identifying the genetic types of shallow gases is important for {2. and development in sedimentary basins. In this paper, we study the gas geochemistry characteristics and distribution in different basins, and classify the shallow gas into two genetic types, biogas and low-mature gas. The biogases are subdivided further into two subtypes by their sources, the source rock-derived biogas and hydrocarbon-derived biogas. Based on the burial history of the source rocks, the source rock-derived biogases are divided into primary and secondary biogas. The former is generated from the source rocks in the primary burial stage, and the latter is from uplifted source rocks or those in a secondary burial stage. In addition, the identifying parameters of each type of shallow gas are given. Based on the analysis above, the distributions of each type of shallow gas are studied. The primary biogases generated from source rocks are mostly distributed in Quaternary basins or modem deltas. Most of them migrate in watersoluble or diffused mode, and their migration distance is short. Reservoir and caprock assemblages play an important role in primary biogas accumulation. The secondary biogases are distributed in a basin with secondary burial history. The oil-degraded biogases are distributed near heavy oil pools. The low-mature gases are widely distributed in shallow-buried reservoirs in the Meso-Cenozoic basins.

关键词： Primary biogas secondary biogas oil-degraded biogas low-mature gas genetic type gas identification gas accumulation distribution

Prediction of petroleum exploration risk and subterranean spatial distribution of hydrocarbon accumulations

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Petroleum Science 2011年第1期8卷 17-23页

作者： Xie Hongbing Guo Qiulin Li Feng Li Jianzhong Wu Na Hu Suyun Liang Kun School of Energy Resources China University of GeosciencesBeijing 100083China research institute of Petroleum {2. ＆ development PetroChinaBeijing 100083China Science ＆ Technology Management Department China National Petroleum CorporationBeijing 100007China

Investigation of spatial distribution of oil and gas resource and accurate prediction of the geographic location of its undiscovered resource is significant for reducing exploration risk and improving exploration benefit.A new method for predicting spatial distribution of oil resource is discussed in this *** consists of prediction of risk probability in petroleum exploration and simulation of hydrocarbon abundance. exploration risk probability is predicted by multivariate statistics,fuzzy mathematics and information processing techniques.A spatial attribute database for sample wells was set up and the Mahalanobis distance and Fuzzy value of given samples were ***,the Bayesian formula was used to calculate the hydrocarbon-bearing probability at the area of exploration ***,a hydrocarbon probability template is formed and used to forecast the probability of the unknown area. The hydrocarbon abundance is simulated based on Fourier integrals,frequency spectrum synthesis and fractal ***,the fast Fourier transformation（FFT） is used to transform the known hydrocarbon abundance from the spatial domain to the frequency domain,then,frequency spectrum synthesis is used to produce the fractal frequency spectrum,and FFT is applied to get the phase information of hydrocarbon-bearing ***,the frequency spectrum simulation is used to calculate the renewed hydrocarbon abundance in the play. This method is used to predict the abundance and possible locations of the undiscovered petroleum accumulations in the Nanpu Sag of the Bohai Bay Basin,*** prediction results for the well-explored onshore area of the northern Nanpu Sag agree well with the actual *** the less-explored offshore areas in the southern Nanpu Sag,the prediction results suggest high hydrocarbon abundance in Nanpu-1 and Nanpu-2.providing a useful guiding for future exploration.

关键词： Hydrocarbon resources abundance risk forecast Nanpu sag frequency spectrum simulation fractal theory