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Structural characteristics and petroliferous features of Tarim Basin

Chinese Science Bulletin 2002年第S1期47卷 1-11页

作者： JIA Chengzao~1 & WEI Guoqi~2 1. Petrochina Company Limited, beijing 100011, china 2. Langfang Branch of research institute of petroleum exploration & development, Petrochina, Langfang 065007, china Petrochina Company Limited Beijing China Langfang Branch of research institute of petroleum exploration & development PetroChina Langfang China

Using the modern tectonic geology theories andmethods such as the plate tectonic analysis, the paleo-struc-ture analysis, the structural-Iithofacies analysis, and the faultrelated fold and petroleum system, and combining with theseismic data, well drilling data and the circumferential fieldgeology, study on the structural characteristics and petro-leum prospect in the Tarim Basin has been carried out. Re-sults show that the Tarim Basin is a large superimpositionand combination basin with continental crustal basement,composed of a Paleozoic craton and Meso-Cenozoic forelandbasins. The characteristics of the basin are: the kernel partof the basin is the marine facies Paleozoic craton, superim-posed 4 continental facies foreland basins. Though the scaleof the paleozoic craton of the Tarim Basin is relatively small,the structure is steady. The petroleum prospect of the Paleo-zoic craton is: multiphase pool-generation and accumulationcontrolled by ancient uplift. The Meso-Cenozoic forelandbasins in the Tarim Basin, which are distributed on the era-tonic circumference and are a long-term subsidence, turnedinto rejuvenated foreland basins after the Meso-Cenozoicperiod. The petroleum prospects are: coal-bed generatinghydrocarbon, abundant natural gas, pool-generation in laterand recent periods, the oil and gas distribution controlled bythe foreland thrust belt. The structural characteristics ofTarim provide it with a superimposition and combinationpetroleum system of multiple resources, multiple reservoirsand multiphase pool-generation. The oil and gas explorationprospect covers two large fields: the Paleozoic craton and theMeso-Cenozoic foreland thrust belt.

关键词： Tarim superimposition and combination basin craton foreland basin superimposition and combination petroleum system.

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Application of C5-C13 light hydrocarbons in depositional environment diagnosis

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Progress in Natural Science:Materials International 2008年第9期18卷 1129-1137页

作者： Peirong Wanga,b,, Guanjun Xu a,c, Tingrong Xiaoc, Dajiang Zhanga,c, Bin Zhanga,c a Key Laboratory of petroleum Geochemistry, china National petroleum Corporation, beijing 100083, china b Department of Organic Geochemistry, Yangtze University, Jingzhou 434023, china c Central Laboratory of petroleum Geology, research institute of petroleum exploration and development, Petrochina, beijing 100083, china Key Laboratory of petroleum Geochemistry China National Petroleum Corporation Beijing 100083 China Department of Organic Geochemistry Yangtze University Jingzhou 434023 China Central Laboratory of petroleum Geology Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

Based on the geological background and Gammacerane/C31H(S + R) ratios, source rock depositional environments of the studied oil samples (194) from 13 oilfields were classified into three groups according to salinity:saline-lacustrine facies, fresh to brackish lacustrine facies (including limnetic facies), and semi-saline to saline facies (including marine facies of the Tarim Basin).C5-C13 compound groups in the crude oils were separated by GC, and about 286 compounds were qualitatively *** geochemical application of the C6-C13 compound groups and their ratios between each group with individual carbon number was *** studies show that (1) C6-C13 compound groups and their ratios in the crude oils could serve as new reliable parameters for oil-oil correlation because the C6-C13 light fractions are the major oil component, especially in light oil or condensate, in which they account for almost 90% of the whole oil;(2) the compound groups of C7 light hydrocarbons in oils derived from difierent depositional environments with difierent salinity have difierent characteristics;(3) C6-C13 compound groups and ratios may be afiected by other factors such as maturity, but they are mainly controlled by salinity of depositional waters.

关键词： Light hydrocarbons Crude oil Depositional environment Salinity

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Study on attribute characterization for reservoir dynamic monitoring by seismic

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Science china Earth Sciences 2008年第S2期51卷 218-225页

作者： CHEN XiaoHong1,3,LI JingYe2,3 & ZHAO Wei4 1 Key Lab of Geophysical exploration of cnpc,china petroleum University,beijing 102249,china 2 Basin & Reservoir research Center,china petroleum University,beijing 102249,china 3 State Key Laboratory of petroleum Resource and Prospecting,china University of petroleum,beijing 102249,china 4 research Center of CNOOC,beijing 100027,china Key Lab of Geophysical exploration of cnpc China Petroleum University Beijing China State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing China Basin & Reservoir research Center China Petroleum University Beijing China research Center of CNOOC Beijing China

Study on characterizing reservoir parameters dynamic variations by time-lapse seismic attributes is the theoretical basis for effectively distinguishing reservoir parameters variations and conducting time-lapse seismic interpretation,and it is also a key step for time-lapse seismic application in real oil fields. Based on the rock physical model of unconsolidated sandstone,the different effects of oil saturation and effective pressure variations on seismic P-wave and S-wave velocities are calculated and analyzed. Using numerical simulation on decoupled wave equations,the responses of seismic amplitude with different offsets to reservoir oil saturation variations are analyzed,pre-stack time-lapse seismic attributes differences for oil saturation and effective pressure variations of P-P wave and P-S converted wave are calculated,and time-lapse seismic AVO (Amplitude Versus Offset) response rules of P-P wave and P-S converted wave to effective pressure and oil saturation variations are compared. The theoretical modeling study shows that it is feasible to distinguish different reservoir parameters dynamic variations by pre-stack time-lapse seismic information,including pre-stack time-lapse seismic attributes and AVO information,which has great potential in improving time-lapse seismic interpreta-tion precision. It also shows that the time-lapse seismic response mechanism study on objective oil fields is especially important in establishing effective time-lapse seismic data process and interpreta-tion scheme.

关键词： time-lapse seismic dynamic monitoring rock physical model pre-stack attribute Amplitude Versus Offset (AVO)

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Hydrogen isotopic compositions, distributions and source signals of individual n-alkanes for some typical crude oils in Lunnan Oilfield, Tarim Basin, NW china

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Science china Earth Sciences 2005年第8期48卷 1220-1226页

作者： LU Hong1, LI Chao1, SUN Yongge1, PENG Ping’an1 & XIAO Zhongyao2 1. State Key Laboratory of Organic Geochemistry, Guangzhou institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, china 2. Tarim research institute of exploration and development of petroleum, china petroleum, Korla 841000, china State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China Tarim research institute of exploration and development of petroleum China Petroleum Korla China

Isotopic compositions of carbon-bound hydrogen in individual n-alkanes from sev-eral typical crude oil samples from Lunnan Oilfield, Tarim Basin, NW china, were firstly measured using newly developed gas chromatography-thermal conversion-isotope ratio mass spectrometry. The similar range of δ D of individual n-alkanes of crude oils among reservoirs of different geo-logical times reflects that hydrocarbons are all derived from the same marine depositional envi-ronment. Compared to the theoretic value (?150‰) and the reported δ D values (nC13―nC27, ?160‰―?90‰) of individual n-alkanes for Ordovician-sourced crude oils in the Canadian Wil-liston Basin, the hydrogen isotopic composition of individual n-alkanes in crude oils from Lunnan Oilfield is characterized by heavy hydrogen isotopic values (nC12―nC27, ?120‰―?60‰). In terms of the factors that control the fractionation of hydrogen isotopes, relatively saline deposi-tional environment and higher thermal maturation were attributed to the heavy δ D values of in-dividual n-alkanes in crude oils from Lunnan Oilfield.

关键词： hydrogen isotopes, individual n-alkanes, distribution, hydrocarbon source, Lunnan Oilfield.

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A　COMPARISON　OF　WATER－OIL　RELATIVE　PERMEABILITY　BY　STEADY－STATE　FLOW　AND　UNSTEADY－STATE　FLOW　TECHNIQUES

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石油勘探与开发 1995年第1期 77-82页

作者： Li Ke-vin Dai Zhi-jian Jiang Yi-rong (research institute of petroleum exploration and Devepment, cnpc. beijing 100083, P. R. china)

ＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥＲ－ＯＩＬＲＥＬＡＴＩＶＥＰＥＲＭＥＡＢＩＬＩＴＹＢＹＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＡＮＤＵＮＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＴＥＣＨＮＩＱＵＥＳＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥ... 详细信息

ＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥＲ－ＯＩＬＲＥＬＡＴＩＶＥＰＥＲＭＥＡＢＩＬＩＴＹＢＹＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＡＮＤＵＮＳＴＥＡＤＹ－ＳＴＡＴＥＦＬＯＷＴＥＣＨＮＩＱＵＥＳＡＣＯＭＰＡＲＩＳＯＮＯＦＷＡＴＥＲ－ＯＩＬＲＥＬＡＴＩＶＥＰＥＲＭ...

关键词： Water drive Relative permeability Unsteady flow Steady flow Core test

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Primary migration and secondary alteration of the Upper Paleozoic gas reservoir in Ordos Basin,china―Application of fluid inclusion gases

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Science china Earth Sciences 2008年第S1期51卷 165-173页

作者： GONG Se 1,2 ,PENG PingAn 1 ,SHUAI YanHua 3 ,DAI JinXing 3 &ZHANG WenZheng 4 1 Guangzhou institute of Geochemistry,the Chinese Academy of Sciences,Guangzhou 510640,china 2 Common Wealth Scientific and research Organization,petroleum Resources,PO Box 136,North Ryde,New South Wales,1670,Australia 3 research institute of petroleum exploration and development,Petrochina,beijing 100083,china 4 research institute of exploration and development,Changqing petroleum Corporation,Xi’an 710021,china Guangzhou institute of Geochemistry the Chinese Academy of Sciences Guangzhou China Common Wealth Scientific and research Organization Petroleum Resources North Ryde Australia research institute of petroleum exploration and development PetroChina Beijing China research institute of exploration and development Changqing Petroleum Corporation Xi’an China

The composition of fluid inclusions(FI)often represents the initial geochemical characteristics of palaeo-fluid in reservoir *** on composition and carbon isotopic composition of gas during primary migration,reservoir-forming and subsequent secondary alterations are discussed through comparing fluid inclusion gas with coal-formed gas and natural gas in present gas reservoirs in the Ordos *** results show that primary migration of gas has significant effect on the molecular but not on the carbon isotopic composition of *** and diffusion fractionation took place during the secondary migration of gas in Upper Paleozoic gas reservoir according to carbon isotopic composition of methane in *** and carbon isotopic composition of natural gas were nearly unchanged after the gas reservoir forming through comparing the FI gases with the natural gas in present gas reservoir.

关键词： secondary alteration fluid inclusion carbon isotope Ordos Basin

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A kind of coccoid dinoflagel-lates-like fossils gives a new explanation of source of dinosterane in the Early-Middle Cambrian

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Chinese Science Bulletin 2001年第5期46卷 420-423,442页

作者： BIAN Lizeng, ZHANG Shuichang, ZHANG Baomin, MAO Shaozhi & YIN LeimingDepartment of Earth Sciences, Nanjing University, Nanjing 210093,china Key Laboratory of petroleum Geochemistry, china National petroleum Corporation, beijing 100083, china research institute of petroleum exploration and development, china National petroleum Corporation, beijing 100083, china china University of Geosciences, beijing 100083, china Nanjing institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, china Department of Earth Sciences Nanjing University Nanjing China Key Laboratory of petroleum Geochemistry China National Petroleum Corporation Beijing China research institute of petroleum exploration and development China National Petroleum Corporation Beijing China china University of Geosciences Beijing China Nanjing institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing China

The coccoid fossils covered with thick gelatinous envelop containing several gametes are discovered in gyps and salt deposits of Cambrian, H4 well and chert bed of the base of Yuertus Formation (∈11) of Xiaoerbulake Section. The fossils are described and compared with coccoid dinoflagellates. These fossils may be a coccoid life-cycle stage (vegetative cyst) of coccoid dinoflagellates. If this identification is correct, the coccoid dinoflagellates-like fossils could give a reasonable explanation of the dinoflagellate-specific biomarkers from Cambrian, H4 well, Tarim Basin.

关键词： coccoid dinoflagellates-like fossils dinoflagellate-specific biomarkers Cambrian Tarim Basin.

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Biogas charging and dissipating process and its accumulation in the Sebei gasfield,Qaidam Basin,china

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Science china Earth Sciences 2008年第S1期51卷 36-44页

作者： JIN Qiang 1,CHENG FuQi 1,2 ,SU AiGuo 3 ,ZHU GuangYou 3 ,WANG Li 1 &CAO Qian 1 1 china University of petroleum,Dongying,Shandong 257061,china 2 Geological institute of Shengli Oilfield,SINOPEC,Dongying,Shandong 257015,china 3 petroleum exploration and development institute,Petrochina,beijing 100083,china china University of petroleum Dongying China Geological institute of Shengli Oilfield SINOPEC Dongying China petroleum exploration and development institute PetroChina Beijing China

The Sebei gasfield is the largest biogas accumulation found in china and many reservoirs and seal rocks superposed on a syndepositional anticline in *** biogas charging and dissipating process and its distribution have been a research focus for many *** authors suggest a diffusing and accumulating model for the biogas,as they find that the shallower the gas producer,the more methane in the biogas,and the lighter stable carbon isotope composition of *** on the diffusing model,diffused biogas is quantitatively estimated for each potential sandy reservoir in the gasfield,and the gas charging quantity for the sandy reservoir is also calculated by the diffused gas quantity plus gas reserve in-place.A ratio of diffusing quantity to charging quantity is postulated to describe biogas accumulating state in a sandy reservoir,if the ratio is less than 0.6,the reservoir forms a good gas-pool and high-production layer in the gasfield,which often occurs in the reservoirs deeper than 900 m;if the ratio is greater than 0.6,a few gas accumulated in the reservoir,which frequently exists in the reservoirs shallower than 900 ***,a biogas accumulation model is built up as lateral direct charging from gas source for the sands deeper than 900 m and indirect charging from lower gas-bearing sands by diffusion at depth shallower than 900 *** this charging and diffusion quantitative model,the authors conducted re-evaluation on each wildcat in the central area of the Qaidam Basin,and found many commercial biogas layers.

关键词： biogas charging and diffusing model relative dissipated quantity Qaidam Basin

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EXPERIMENTAL STUDY OF ROCK BREAKING EFFECT OF STEEL PARTICLES

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Journal of Hydrodynamics 2011年第2期23卷 241-246页

作者： CUI Meng ZHAI Ying-hu JI Guo-dong MOE Key Laboratory of petroleum Engineering China University of Petroleum Beijing 102249 China cnpc Drilling research institute Beijing 100195 China

Particle impact drilling is an efficient drilling technology for deep-well hard formation, With this technology, the rock is cut mainly by high-speed spherical particle impact under hydraulic action. In this article, the influence of jet flow factors, hydraulic factors and abrasive factors on rock breaking is studied through indoor experiments of impact by steel particles. The results indicate that the particle water jet has an optimal standoff distance and particle concentration; the rock breaking effect declines with the increase of the confining pressure and the decrease of the pump pressure and particle diameter. This study will provide some food of thought for the development of particle impact drilling technology.

关键词： hard formation particle impact drilling water jet rock breaking effect experimental research

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Application of backflush and micro-flow techniques to the analysis of C5—C13 hydrocarbons in crude oils and its geochemical significance

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Progress in Natural Science:Materials International 2007年第11期17卷 1382-1387页

作者： Wang Peirong1,2, Zhao Hong2,3, Xu Guanjun1,4, Zhu Cuishan2,3, Xiao Tingrong4, Zhang Min2,3 and Zhang Bin1,4(1. Key Laboratory of petroleum Geochemistry, china National petroleum Corporation, beijing 100083, china 2. Geochemistry Department of Yangtze University, Jingzhou 434023, china 3. Key Laboratory of exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Jingzhou 434023, china 4. petroleum Geology Central Laboratory, research institute of petroleum exploration and development, Petrochina, beijing 100083, china) Key Laboratory of petroleum Geochemistry China National Petroleum Corporation Beijing 100083 China Geochemistry Department Yangtze University Jingzhou 434023 China Key Laboratory of exploration Technologies for Oil and Gas Resources Yangtze University Jingzhou 434023 China petroleum Geology Central Laboratory Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

An Agilent 6890N GC equipped with both FID and Agilent 5975 MSD analyzer has been employed to analyze C5—C13 hydrocarbon fractions of crude oils. A technical combination of program temperature volatilizer injection, backflush and micro-flow controller afforded a fine separation of C5—C13 compounds on a PONA column with the heavy part of crude oils being cut off before entering the analytical column. Both GC-FID chromatogram and GC-MS mass chromatograms (MID and full scan) could be obtained at the same time. The retension time differences of nC6—nC13 alkanes between GC and TIC were in the range of 0.02—0.58 minutes. Totally 286 peaks have been assigned group compositions. Results on 8 typical oil samples from cnpc Key Laboratory Crude Oil Library showed that the characteristics of C6—C13 hydrocarbon group composition could be used in oil-oil correlation studies.

关键词： GC analysis GC/MS analysis backflush micro-flow controller light fraction in crude oil

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