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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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The components and carbon isotope of the gases in inclusions in reservoir layers of Upper Paleozoic gas pools in the Ordos Basin,china

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Science china Earth Sciences 2008年第S1期51卷 115-121页

作者： MI JingKui 1 ,DAI JinXing 1 ,ZHANG ShuiChang 1 ,ZHANG WenZheng 2 ,GONG Se 1 &LI XianQing 3 1 research institute of petroleum exploration and development,petrochina,Beijing 100083.china 2 exploration and development research institute of petrochina Changqing Oilfield Company,Xi’an 710021,china 3 Key Laboratory of Coal Resources,Ministry of Education,china University of Miningand Technology,Beijing 100083.china research institute of petroleum exploration and development PetroChina Beijing China exploration and development research institute of petrochina Changqing Oilfield Company Xi’an China Key Laboratory of Coal Resources Ministry of Education China University of Miningand Technology Beijing China

The components and carbon isotope of gases in inclusions are one of the most important geochemical indexes for gas *** analysis results of the components and carbon isotope of gases from inclusions in reservoir layers of Upper Palaeozoic gas pools in the Ordos Basin show that most inclusions grown in reservoir sandstone are primary *** is only a little difference about the components and carbon isotope between the well gases and the secondary inclusions *** indicated that the epigenetic change of gas pools is *** difference between the well gases and the secondary inclusions gases is caused by two reasons:(i)The well gases come from several disconnected sand bodies buried in a segment of depth,while the inclusion gases come from a point of depth.(ii)The secondary inclusions trapped the gases generated in the former stage of source rock gas generation,and the well gases are the mixed gases generated in all the *** is irresponsible to reconstruct the palaeo-temperature and palaeo-pressure under which the gas pool formed using carbon dioxide inclusions.

关键词： Ordos Basin Upper Paleozoic inclusion gas components carbon isotope

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Classification and origin of natural gases from Lishui Sag,the East china Sea Basin

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Science china Earth Sciences 2008年第S1期51卷 122-130页

作者： CHEN JianPing 1,2 ,GE HePing 3 ,CHEN XiaoDong 3 ,DENG ChunPing 1,2 &LIANG DiGang 1,2 1 research institute of petroleum exploration&development,petrochina,Beijing 100083.china 2 Key Lab of petroleum Geochemistry,CNPC,Beijing 100083.china 3 Shanghai Division,CNOOC,Shanghai 200030,china research institute of petroleum exploration & development PetroChina Beijing China Key Lab of petroleum Geochemistry CNPC Beijing China Shanghai Division CNOOC Shanghai China

Natural gases discovered up to now in Lishui Sag,the East china Sea Basin,differ greatly in gaseous compositions,of which hydrocarbon gases amount to 2%―94%while non-hydrocarbon gases are dominated by *** hydrocarbon gases,without exception,contain less than 90%of methane and over 10%of C2 + heavier hydrocarbons,indicating a wet *** isotopic analyses on these hydrocarbon gases showed thatδ13. 1 ,δ13. 2 andδ13. 3 are basically lighter than-44‰,-29‰and-26‰, *** difference in carbon isotopic values between methane and ethane is great,suggesting a biogenic oil-type gas produced by the mixed organic matter at peak generation.δ13. CO2 values of nonhydrocarbon gases are all heavier than-10‰,indicating a typical abiogenic *** simulation experiment on hydrocarbon generation of organic matter in a closed gold-tube system showed that the proportion of methane in natural gases produced by terrigenous organic matter in the Lingfeng Formation marine deposit is obviously higher than that in natural gases derived from the aquatic and terrigenous mixed organic matter in the Yueguifeng Formation lacustrine deposit,consequently the proportion of heavier hydrocarbons of the former is remarkably lower than that of the ***, δ13. 1 values of natural gases produced by terrigenous organic matter in the Lingfeng Formation marine deposit are about 5‰heavier than those of natural gases derived from the aquatic and terrigenous mixed organic matter in the Yueguifeng Formation lacustrine deposit whileδ13. 2 andδ13. 3 values of the former are over 9‰heavier than those of the *** the LS36-1 oil-gas pool is the only commercial oil-gas reservoir in Lishui Sag,where carbon isotopic compositions of various hydrocarbon components differ greatly from those of natural gases produced by the Lingfeng Formation organic matter but are very similar to those of natural gases derived from the Yueguifeng Formation organic matter,therefore,natural gases in the

关键词： Lishui Sag natural gas biogenesis abiogenesis lacustrine source rock marine source rock coal-measures source rock

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Efficient computation of the compositional model for gas condensate reservoirs

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Communications in Nonlinear Science and Numerical Simulation 2000年第4期5卷 141-146页

作者： Jifu ZHOU, Jiachun LI and Jigen YE (institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, china The research institute of petroleum exploration and development, Beijing 100083, china) (Received December 2, 2000) institute of Mechanics Chinese Academy of Sciences Beijing 100080 China Res. Inst. Petrol. Explor./Devmt. Beijing 100083 China

In this paper, a direct method, unsymmetric-pattern multifrontal factorization, for a large sparse system of linear equations is applied in the compositional reservoir model. The good performances of this approach are shown by solving the Poisson equation. And then the numerical module is embedded in the compositional model for simulating X15(3) gas condensate reservoir in KeKeYa gas field, Northwest china. The results of oil/gas reserves, variations of stratum pressure and oil/gas production, etc. are compared with the observation Good agreement comparable to COMP4 model is achieved, suggesting that the present model is both efficient and powerful in compositional reservoir simulations.

关键词： gas condensate reservoir compositional model sparse matrix

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EARLY PALAEOZOIC PRIMARY OIL OF KONGXI BURIED HILL IN HUANGHUA DEPRESSION, HUABEI, china

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石油勘探与开发 1997年第3期24卷 92-95页

作者： Wang Zhaoyun Cheng Keming(research institute of petroleum exploration and development, CNPC, Beijing, 100083)Yang Chiyin(geology and development institute, Dagang Oil Field Group Ltd., Tianjin, 300280)

Huabei area suffered a sedimentary interruption of about 13. million years during Late Ordovicianto Devonian period. Therefore, whether the Early Palaeozoic carbonate rocks with a stable distribution and alarge thickness can secondarily generate hydrocarbon and form Primary oil and gas Pool is an important issueregarding the prospecting for Primary oil and gas Pools in the Lower Palaeozoic formations. Well Konggu 3,located in the northwestern Kongdian anticlinal structural belt, produced oil from the Primary Ordovician limestoneoil pool reserved in the Ordovician Fengfpog Formation. The crude oil Characteristics and oil-source correlationshow that oil source rock are Ordovician limestone. So it is a primary oil pool with source and reservoir rads inthe same formation. The studies on the secondsry hydrocarbon generation of source rocks and the primary oil ofWell Konggu 3 have a great significance to firmly prospect for Lower Palaeozoic primary oil and gas pools inHuabei area.

关键词： Subject heading Early Palaeozoic Primary reservoir Oil-source correlation Huanghua depression Huabei area

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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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Carbon isotope composition and its implications of Lower Cretaceous Aptian-Albian shallow water carbonates in the Cuoqin Basin, North Tibet

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Science china Earth Sciences 2004年第3期47卷 247-254页

作者： ZHU Jingquan1, LI Yongtie2, JIANG Maosheng1 & CHEN Daizhao1 1. institute of geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, china 2. research institute of petroleum exploration and development, CNPC, Beijing 100083, china institute of geology and Geophysics Chinese Academy of Sciences Beijing 100029 China Res. Inst. petroleum Explor./Devt. CNPC Beijing 100083 China

The d 13. values of Lower Cretaceous Aptian-Albian platform-type carbonates in the Cuoqin Basin, North Tibet vary between 2.48 and 5.46. The mean value is 3.93. The values are not only provided with positive excursion, but also 1.17 higher than those of con-temporaneous pelagic carbonates which possess pretty high d 13. values. The origin is ap-proached. During the oceanic anoxic events, a great number of organisms were rapidly buried, causing the increase of the d 13. value of oceanic total dissolved carbon (TDC) and generally promoting the values of marine carbonates. After that, owing to the organisms undergoing dif-ferent isotopic fractionation in the paleo-ocean with stratified structure, d 13. values of shallow sea carbonate were obviously higher than those of pelagic carbonates.

关键词： shallow water carbonate, stable carbon isotope, paleooceanography, Aptian-Albian stage, Cuoqin Basin.

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Detection of water in petroleum inclusions and its implications

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Science Bulletin 2006年第12期51卷 1501-1507页

作者： CAO Jian1, YAO Suping1, HU Wenxuan1, ZHANG Yijie2, WANG Xulong3, ZHANG Yueqian3 & TANG Yong3 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, Bei- jing 100083, china 3. research institute of exploration and development, Xinjiang Oilfield Company, petrochina, 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 Xinjiang Oilfield Company PetroChina Karamay China

FTIR spectra of inclusions sampled from fault-zone reservoirs of the northwestern Junggar Basin show that water, with different abundances, does exist in petroleum inclusions. It is thus implied that petroleum inclusions can seldom form without water. Different inclusions hosted in one single grain, and formed in one oil charging phase, have a largely varied ratio of water to oil and slightly changed CH3/CH2 ratio. This likely provides evidence for fault-related episodic migration and accumulation of hydrocarbons.

关键词： water in petroleum inclusions forming mechanism of inclusions episodic migration and accumulation of hydrocarbons FTIR microspectroscopy Junggar Basin.

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CHARACTERISTICS　OF　COAL－FORMED　GAS　ACCUMULATION　BELTS　IN　THE　EAST　PART　OF　THE　CENTRAL－ASIA　COAL－FORMED　GAS　ACCUMULATION　DOMAIN　──SERIES　STUDY　Ⅲ　ON　THE　CENTRAL－ASIA　COAL－FORMED　GAS　ACCUMULATION　DOMAIN

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石油勘探与开发 1995年第5期22卷 87-95页

作者： Dai Jin-xing Li Xian-qi(research institute of petroleum exploration and development, CNPC. Beijing, 100083, P. R. china)

ＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＣＯＡＬ－ＦＯＲＭＥＤＧＡＳＡＣＣＵＭＵＬＡＴＩＯＮＢＥＬＴＳＩＮＴＨＥＥＡＳＴＰＡＲＴＯＦＴＨＥＣＥＮＴＲＡＬ－ＡＳＩＡＣＯＡＬ－ＦＯＲＭＥＤＧＡＳＡＣＣＵＭＵＬＡＴＩＯＮＤＯＭＡ... 详细信息

ＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＣＯＡＬ－ＦＯＲＭＥＤＧＡＳＡＣＣＵＭＵＬＡＴＩＯＮＢＥＬＴＳＩＮＴＨＥＥＡＳＴＰＡＲＴＯＦＴＨＥＣＥＮＴＲＡＬ－ＡＳＩＡＣＯＡＬ－ＦＯＲＭＥＤＧＡＳＡＣＣＵＭＵＬＡＴＩＯＮＤＯＭＡＩＮ──ＳＥＲＩＥＳＳＴＵＤＹⅢＯ...

关键词： GAS FORMED COAL ACCUMULATION BELTS ASIA EAST

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Contributors and potential of hydrocarbon generation of source rocks by solid-state ^(13.C NMR spectroscopy

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Chinese Science Bulletin 1997年第6期42卷 478-481页

作者： WANGZhaoyun, ZHAO Changyi, CHENG Keming and LU Qinghua1. research institute of petroleum exploration and development, china National petroleum Corporation, Beijing 100083, china:2. University of petroleum, Beijing, 100083.china research institute of petroleum exploration and development China National Petroleum Corporation Beijing China University of petroleum Beijing China

SOLID-STATE 13. nuclear magnetic resonance （NMR） technique is an effective method to study the texture of material. Under the condition of high magnetic field （400 MHz） and by the application of cross polarization... 详细信息

SOLID-STATE 13./sup>C nuclear magnetic resonance （NMR） technique is an effective method to study the texture of material. Under the condition of high magnetic field （400 MHz） and by the application of cross polarization, magic angle spinning （CP/MAS）, total sideband suppression （TOSS）, etc., the content of different textural carbons in kerogen has been quantitatively analyzed by the solid-state 13./sup>C NMR spectroscopy of a series of kerogen of thermal simulation samples with Ro value ranging from 0.64% to 1.76%. The results show that

关键词： solid 13. NMR analysis aliphatic carbon potential of hydrocarbon generation of source rocks.

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