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Geological characteristics of large gas provinces and large gas fields in china

Science china Earth Sciences 2008年第S1期51卷 14-35页

作者： ZOU CaiNeng &TAO ShiZhen research institute of Petroleum exploration and Development,Petrochina,beijing 100083,china research institute of Petroleum exploration and Development PetroChina Beijing China

Based on the examination of the global researches on oil and gas provinces and large gas fields and the analysis of the features,attributes and distribution of large gas provinces and gas fields,this paper puts forward three indicators of determining large oil and gas provinces:spatial indicator,reservoir-forming indicator and resource *** classifies the gas accumulated areas and large gas provinces in china and analyzes the controlling factors on the distribution of large gas provinces and large gas fields:the lateral distribution is mainly controlled by high-energy sedimentary facies and constructive diagenetic facies,palaeo-highs and their periclinal zones,deep faults,etc,and the vertical distribution is mainly controlled by unconformities,series of evaporates and deep low-velocity highly-conductive beds,*** also reveals the main geological characteristics of large gas provinces and large gas fields in *** gas fields in four-type basins have their own characteristics and onland large gas fields are dominantly developed in foreland basins and craton basins;there are three types of gas sources,of which,coal is the main source with high gas generating intensity and varying origins;reservoir rocks of the large gas fields(provinces)are of various types and dominated generally by low-middle permeability and porosity pore-type reservoirs;structural traps and litho-stratigraphic traps coexist in Chinese large gas fields and form dense high abundance and large-area low and middle-abundance large gas fields;most of the large gas fields have late hydrocarbon-generation peaks and reservoir formation,and experienced the process of multiple-stage charging and late finalization; large gas provinces(fields)have good sealing and preservation conditions,and evaporates seals are largely developed in large and extra-large gas *** paper intends to shed light on the exploration and development of large gas fields(provinces)through analyzing their geological

关键词： large gas province large gas field indicator of large oil and gas provinces forming condition distribution characteristics geological feature

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SEVERAL　CONSIDERATIONS　ON　HYDROCARBON　GENERATION　MECHANISM　AND　EVOLUTION　OF　CARBONATE　ROCKS

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石油勘探与开发 1996年第5期23卷 75-80页

作者： Cheng Keming Wang Zhaoyun(research institute of Petroleum exploration and Development, CNPC, beijing, 100083, china)

ＳＥＶＥＲＡＬＣＯＮＳＩＤＥＲＡＴＩＯＮＳＯＮＨＹＤＲＯＣＡＲＢＯＮＧＥＮＥＲＡＴＩＯＮＭＥＣＨＡＮＩＳＭＡＮＤＥＶＯＬＵＴＩＯＮＯＦＣＡＲＢＯＮＡＴＥＲＯＣＫＳ￥ＣｈｅｎｇＫｅｍｉｎｇ；ＷａｎｇＺｈａｏｙｕｎ（Ｒｅ... 详细信息

ＳＥＶＥＲＡＬＣＯＮＳＩＤＥＲＡＴＩＯＮＳＯＮＨＹＤＲＯＣＡＲＢＯＮＧＥＮＥＲＡＴＩＯＮＭＥＣＨＡＮＩＳＭＡＮＤＥＶＯＬＵＴＩＯＮＯＦＣＡＲＢＯＮＡＴＥＲＯＣＫＳ￥ＣｈｅｎｇＫｅｍｉｎｇ；ＷａｎｇＺｈａｏｙｕｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆ...

关键词： Marine factes Oil generation of carbonate rocks Mechanism Evaluation Oil-generatingindex Thermal evolution

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塔河油田似层状储集体的发现及勘探方向

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石油学报 2003年第5期24卷 4-9页

作者：张抗中国石化石油勘探开发研究院北京100083

自 2 0 0 1年以来 ,塔河油田南部下奥陶统一间房组的油气突破证实了对存在似层状储集体的推测。加里东期表生岩溶和深溶作用的发育及其在成藏中的作用 ,启发人们应以网络状和似层状储集体并重的思路 ,以“大岩溶”(成藏过程中多期表生... 详细信息

自 2 0 0 1年以来 ,塔河油田南部下奥陶统一间房组的油气突破证实了对存在似层状储集体的推测。加里东期表生岩溶和深溶作用的发育及其在成藏中的作用 ,启发人们应以网络状和似层状储集体并重的思路 ,以“大岩溶”(成藏过程中多期表生和深溶岩溶 )和“大隆起”(与最大侵蚀期侵蚀基准面以上的整个古隆起及其演化过程 )

关键词：塔里木盆地塔河油田奥陶系碳酸盐岩岩溶油气勘探方向

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AN APPROACH TO CUTTINGS FLUOROLOGGING USING HEXANE AS A SUBSTITUTE

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石油勘探与开发 1997年第4期24卷 92-96页

作者： Zhao Juying(research institute of Petroleum exploration and Devempment, CNPC, beijing, 100083)

It is discovered that carbon tetrachloride is a fluorescence quencher in crude oil detedion with cottings fluorologging. Hexane, which has many advantages as a substitute for carbon tetrachloride, is proposed. In this paper, four typical comparison results of fluorescence spectra of crude oil samples and some of field cores and cuttings are *** sensitivity of fluorescence analysis is increased by 10 to 35 times when we substitute hexane for carbon tetrachloride as the solvent of crude oil. We also find that the lighter the crude oil,the more Obvious the increase in analysis sensitivity. lt challenges the old concopt that coal-derived oil, condensate and some light oils do not emit fluorescence. The merit of hexane system in eliminating or reducing the fluorescent interference of modified asphalts in drilling fluids for cuttings fluorologging has also been discussed.

关键词： Cuttings logging Fluorescence analysis Hexane Carbon tetrachloride Crude oil (Fluorescence quench)

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Alkaline diagenesis and its genetic mechanism in the Triassic coal measure strata in the Western Sichuan Foreland Basin,china

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Petroleum Science 2009年第4期6卷 354-365页

作者： Jiang Zaixing Qiu Longwei Chen Guiju College of Energy China University of GeosciencesBeijing 100083China College of Earth Resources and Information China University of PetroleumShandong 257062China sinopec exploration and production research institute Beijing 100083China

The reservoir of the upper Triassic Xujiahe Formation (T3x) in the Western Sichuan Foreland Basin is a set of terrigenous clastic rocks in an environment of coal measure sediments. Diagenesis greatly controls the physical properties of the reservoir through different responses of minerals to acidic and alkaline diagenetic environment. The dissolution of unstable components such as feldspar, rock fragments, carbonate cement, and clay minerals is the major source of secondary pores under acidic diagenesis, while the dissolution of quartz increases the reservoir space in the fault-fold zone of Longmen Mountain and Leikoupo paleo-hills. The dissolution of quartz is a result of cross-formation flow of fluid in the Himalaya epoch and the invasion of alkaline formation water from the Triassic Leikoupo and Jialingjiang formations through fault and fracture systems. In the vertical succession, acidic dissolution occurs at a shallow depth of less than 2,180 m, and alkaline dissolution occurs at a greater depth of more than 2,280 m. The reservoir space is formed by the influence of both acidic and alkaline dissolution in the depth interval of 2,180–2,280 m.

关键词： Sichuan Basin upper Triassic alkaline diagenesis porosity genetic mechanism

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Progress and review of the studies on the end-Triassic mass extinction event

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Science china Earth Sciences 2005年第12期48卷 2049-2060页

作者： DENG Shenghui1,2, LU Yuanzheng1,2,3 & XU Daoyi4 1. research institute of Petroleum exploration and Development, beijing 100083, china 2. Key Laboratory of Oil and Gas Reservoir of Petrochina, beijing 100083, china 3. china University of Geosciences, beijing 100083, china 4. institute of Geology, china Earthquake Administration, beijing 100029, china research institute of Petroleum exploration and Development Beijing China Key Laboratory of Oil and Gas Reservoir of Petrochina Beijing China china University of Geosciences Beijing China institute of Geology China Earthquake Administration Beijing China

The mass extinction at the end-Triassic is one of the five biggest in the Phanerozoic. However,it is the least well understood among these five events, and only till last decade it became a great academic interesting subject to geologists. The evidences for this event come obviously from bivalves, brachiopods, ammonites, corals, radiolaria, ostracods and foraminifera of marine habitats, and plants and tetrapods of terrestrial realm. By contrast, for some of other groups, such as marine gastropods and marine vertebrates, no mass extinction has been recog-nized yet. The extinction event is strongly marked at specific level but shown a complicated situa-tion at generic and family levels. Dramatic changing of the environment, such as the temperature raise due to the greenhouse effect, the marine anoxic habitats caused by a sudden transgression after the regression at the end of Triassic, has been claimed to be the main cause of the extinction. Many hypotheses have been suggested to demonstrate the mechanisms of the environment changing, among which two popular ones are the bolide impact and volcanic eruption. The Triassic-Jurassic (Tr-J) boundary mass extinction event is still poorly understood because no enough data have been obtained from the Tr-J boundary successional sections of both marine and terrestrial sediments, and most of these studies were regionally restricted. The basic aspects of the event and its associated environmental conditions remain poorly characterized and the causal mechanism or mechanisms are equivocal. Some authors even doubt its occurrence. china has many successionally developed terrestrial and marine Tr-J sections. Detailed studies of these sections may be important and significant for well understanding of the event.

关键词： progress, review, end-Triassic, mass extinction, mechanism, Tr-J boundary.

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Natural gas origins of large and medium-scale gas fields in china sedimentary basins

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Science china Earth Sciences 2008年第S1期51卷 1-13页

作者： ZHANG ShuiChang &ZHU GuangYou research Center of research institutes of Petrochina exploration and Development,beijing 100083,china research Center of research institutes of Petrochina exploration and Development Beijing China

china sedimentary basins present abundant natural gas resource thanks to its unique geological *** highly-matured hydrocarbon source rocks,widespread coal-measure strata and low temperature Quaternary saline strata,etc.,indicate the wide foreground of china natural gas resources. Up to now,most of the petroliferous basins have been discovered to have wholesale natural gas accumulation from Precambrian,Paleozoic,Mesozoic to Cenozoic in the east,the central,the west and the coast of *** large and medium-scale gas reservoirs are mainly composed of hydrocarbon gas with big dry coefficient,tiny non-hydrocarbon,wide carbon isotope distribution and varying origin types,the hydrocarbon gas includes coal-formed gas,oil-formed gas,biogenic gas and inorganic gas, ***-formed gas is the main type of china natural gas resources,in particular several explored large-scale gas fields(>100 billion cubic meter)of Kela 2,Sulige and Daniudi,etc.,they all belong to coal-formed gas fields or the gas fields consisting mostly of coal-formed ***-formed gas is also abundant in china marine basins,for example marine natural gas of Sichuan Basin generated from crude oil cracking *** and secondary biogenic gas fields were discovered respectively in the Qaidam Basin and Western Slope of Songliao *** addition,inorganic gases are mainly distributed in the eastern china,in particular the Songliao Basin with abundant carbon dioxide accumulation,indicating that the eastern china present large exploration potential of inorganic gas.

关键词： natural gas origin sedimentary basin large and medium-scale gas field

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Quantitative studies of hydrocarbon loss of the Silurian bitumen sandstone in the Tarim Basin

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Science china Earth Sciences 2008年第S2期51卷 101-107页

作者： JIANG ZhenXue1,2,PANG XiongQi1,2,LIU LuoFu1,2,WANG XianDong3,ZHANG Jun4 & LI HongYi1,2 1 Basin and Reservoir research Center,china University of Petroleum,beijing 102249,china 2 State Key Laboratory of Petroleum Resource and Prospecting,china University of Petroleum,beijing 102249,china 3 research institute of exploration and Development,Daqing Oilfield Company Ltd,Daqing 163712,china 4 Petroleum exploration and production institute of sinopec,beijing 100083,china Basin and Reservoir research Center China University of Petroleum Beijing China State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Beijing China research institute of exploration and Development Daqing Oilfield Company Ltd Daqing China Petroleum exploration and production institute of sinopec Beijing China

The evolution of Tarim Basin experienced several tectonic movements,of which Caledonian movement caused a serious damage to reservoirs of Silurian. The earlier reservoirs size and the later hydrocarbon loss are two key factors to exploration prospect of Silurian. On the basis of net thickness of bituminous sandstone and recovery coefficient of crude oil converting to bitumen,the scale of the hydrocarbon loss of palaeo-accumulation in bitumen sandstone of Silurian was calculated (86.30×108t). The deter-mination of net thickness of bitumen sandstone was completed mainly by several methods,such as physical property demarcation,observing lithology,grains with oil inclusion (GOI) technology,and quantitative grains fluorescence (QGF) technology. The samples of black sandstone and white sand-stone were collected and compared by means of the methods mentioned above. The results showed that there was little hydrocarbon,or none,in the white sandstone. The recovery coefficient was ob-tained by the analyses of plentiful physical parameters of crude oil and bitumen sandstone,based on the hypothesis that nonhydrocarbon compounds and bitumen were invariable in the process of bitu-men forming. The calculated result,which is more scientific and actual,indicates the exploration pros-pect is more promising in Silurian of the Tarim Basin.

关键词： Tarim Basin Silurian bitumen sandstone hydrocarbon loss quantitative research recovery coefficient

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Study on MIP Technology for production of EUROⅣClean Gasoline *** of Rules for Transformation of Sulfur Compounds and Factors Influencing Sulfur Content in MIP Naphtha

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china Petroleum Processing & Petrochemical Technology 2009年第4期11卷 27-33页

作者： Tang Jinlian Xu Youhao Cheng Congli Wang Xieqing (research institute of Petroleum Processing,sinopec,beijing 100083,china) research institute of Petroleum Processing SINOPEC Beijing 100083 China

The rules of MIP reactions for catalytic cracking of sulfur compounds and its influence on the sulfur content in the MIP naphtha were *** mam factors influencing the sulfur content in the MIP naphtha were thought to be the sulfur content of feedstock and were closely related with the olefin content of *** into account the characteristic features of MIP process,the methods for reducing the sulfur content in the MIP naphtha were comprised of decreasing the sulfur content of feedstock by hydrotreating and decreasing the olefin content of naphtha through promoting hydrogen transfer ***,the EuroⅣclean gasoline with low sulfur content and low olefin content could be obtained directly through the MIP technology.

关键词： FCC MIP process gasoline sulfur content feedstock

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Mn content of reservoir calcite cement: A novel inorganic geotracer of secondary petroleum migration in the tectonically complex Junggar Basin (NW china)

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Science china Earth Sciences 2007年第12期50卷 1796-1809页

作者： CAO Jian1,HU WenXuan1,YAO SuPing1,ZHANG YiJie2,WANG XuLong3,ZHANG YueQian3,TANG Yong3 & SHI XinPu3 1 State Key Laboratory for Mineral Deposit research,Department of Earth Sciences,Nanjing University,Nanjing 210093,china 2 research institute of exploration and Development,Petrochina,beijing 100083,china 3 research institute of exploration and Development,Petrochina Xinjiang Oilfield Company,Karamay 834000,china State Key Laboratory for Mineral Deposit research Department of Earth Sciences Nanjing University Nanjing China research institute of exploration and Development PetroChina Beijing China research institute of exploration and Development PetroChina Xinjiang Oilfield Company Karamay China

Electronic probe microanalysis(EPMA) results of reservoir calcite cement from fourteen core samples in the Junggar Basin show that Mn-content varies largely between different samples from below the detect limitation to 4.14%,while it displays a generally good correlation with oil-gas ***,therefore,likely indicates that concentration of the Mn-content of the calcite cement has a close rela-tion to the intensity of petroleum fluid charging during hydrocarbon secondary *** order to assess this hypothesis,oxygen and strontium isotopic measurements on sixteen calcite veins host in source sequences were carried out to investigate the feature of the oil-source petroleum *** results imply that during hydrocarbon generation and migration,deep hot fluid has dissolved volcanic minerals interlined between mudstone source *** Mn is a kind of typical trace element enriched in volcanic rocks,it is reasonable to conclude that the petroleum fluid formed in the source sequences would be ***,calcite cements precipitated from such Mn-rich petroleum fluid would be Mn-rich *** to the geologic chromatographic effect during migration along reservoir rocks,the decreasing of the Mn-content of the reservoir calcite cements indicates the migration ***,this novel geotracer was further successfully applied in the study of hydrocarbon migration in the Junggar Basin in combination with organic geochemical analyses during the hydrocarbon *** Mn content of the reservoir calcite cement appears promising as a novel inorganic geotracer for the petroleum *** paper represents a search for novel indicators of secondary petroleum migration in tectonically complex basins based on fundamentals of the reservoir fluid-rock interactions.

关键词： Petroleum migration, inorganic geochemistry, water-rock interaction, reservoir calcite cement, the Junggar Basin

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