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Structural characteristics and petroliferous features of Tarim Basin

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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.

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 exploration and development, beijing 100083, china Changqing petroleum exploration Bureau, XL an 710021 , china research institute of petroleum exploration 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 12C-rich ethane in the Ordovician reservoir (δ13C2 < - 29‰), 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.

ESTABLISHMENT OF THE GEOLOGICAL MODEL OF FRACTURED RESERVOIRS

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石油勘探与开发 1995年第6期22卷 90-97页

作者： Mu Long-xin (research institute of petroleum exploration and development, CNPC)

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ＥＳＴＡＢＬＩＳＨＭＥＮＴＯＦＴＨＥＧＥＯＬＯＧＩＣＡＬＭＯＤＥＬＯＦＦＲＡＣＴＵＲＥＤＲＥＳＥＲＶＯＩＲＳ￥ＭｕＬｏｎｇ－ｘｉｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＥｘｐｌｏｒａｔｉｏｎａｎｄＤｅｖｅｌｏｐｍｅｎｔ，ＣＮＰＣ）...

关键词： Fracture Geological model Low permeability sandstone oil field

Curve fitting and optimal interpolation on CNC machines based on quadratic B-splines

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Science china(Information Sciences) 2011年第7期54卷 1407-1418页

作者： ZHANG Mei 1,YAN Wei 2,YUAN ChunMing 1,WANG DingKang 1 & GAO XiaoShan 1 1 Key Laboratory of Mathematics Mechanization,Academy of Mathematics and Systems Science,Chinese Academy of Sciences,beijing 100190,china 2 research institute of petroleum exploration and development,beijing 100083,china Key Laboratory of Mathematics Mechanization Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China research institute of petroleum exploration and development Beijing China

In this paper,curve fitting of 3-D points generated by G01 codes and interpolation based on quadratic B-splines are *** points of G01 codes are selected using an adaptive ***,quadratic B-splines are obtained as the fitting curve by interpolating these feature *** required in implementing the velocity planning algorithm mentioned by Timer et *** very complicated because of the appearance of high-order *** improved time-optimal method for the quadratic B-spline curves is presented to circumvent this *** algorithms are verified with simulations as well as on real CNC machines.

关键词： quadratic B-spline G01 codes feature point velocity planning interpolation

Geochemical characteristics of pyrolysis gas from epimetamorphic rocks in the northern basement of Songliao Basin,Northeast china

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Science china Earth Sciences 2008年第S1期51卷 140-147页

作者： YANG Chun 1 ,LUO Xia 2 ,LI Jian 2 ,LI ZhiSheng 2 ,LIU QuanYou 3 &Wang YuLin 4 1 Department of Earth Sciences,Zhejiang University,Hangzhou 310027,china 2 research institute of petroleum exploration and development(Langfang Branch),Langfang 065007,china 3 research institute of petroleum exploration and development,beijing 100083,china 4 Department of Source and Environment,Liaoning Technical University,Fuxin 123000,china Department of Earth Sciences Zhejiang University Hangzhou China research institute of petroleum exploration and development (Langfang Branch) Langfang China research institute of petroleum exploration and development Beijing China Department of Source and Environment Liaoning Technical University Fuxin China

The Xushen gas field,located in the north of Songliao Basin,is a potential giant gas area for china in the *** proved reserves have exceeded 1000×10 8 m 3 by the end of ***,the origin of natural gases from the deep strata is still in *** rocks as a potential gas source are widely spreading in the northern basement of Songliao *** to pyrolysis experiments for these rocks in the semi-confined system,gas production and geochemistry of alkane gases are discussed in this *** Carboniferous-Permian epimetamorphic rocks were heated from 300℃to 550℃,with temperature interval of 50℃.The gas production was quantified and measured for chemical and carbon isotopic *** show thatδ13C 1 is less than?20‰,carbon isotope trend of alkane gas isδ13C 1 3C 2 3C 3 orδ13C 1 3C 2 >δ13C 3 ,these features suggest that the gas would be coal-type gas at high-over maturity,not be inorganic gas with reversal trend of gaseous alkanes (δ13C 1 >δ13C 2 >δ13C 3 ).These characteristics of carbon isotopes are similar with the natural gas from the basin basement,but disagree with gas from the Xingcheng ***,the mixing gases from the pyrolysis gas with coal-typed gases at high-over maturity or oil-typed gases do not cause the reversal trend of carbon *** gas generation intensity for epimetamorphic rocks is 3.0×10 8 ―23.8×10 8 m 3 /km 2 ,corresponding to Ro from 2.0%to 3.5%for organic matter.

关键词： Northern Songliao Basin epimetamorphic rock pyrolysis experiment gas generation potential carbon isotope

Geological analysis and physical modeling of structural pumping in high effective formation of Kela 2 gas field

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Science china Earth Sciences 2006年第10期49卷 1070-1078页

作者： ZHAO Wenzhi1, WANG Hongjun1, SHAN Jiazeng2, WANG Zecheng1 & XU Dafeng1 1. research institute of petroleum exploration and development, petrochina, beijing 100083, china 2. institute of Geology and Geophysics, Chinese Academy of Sciences, beijing 100029, china research institute of petroleum exploration and development Petrochina Beijing China institute of Geology and Geophysics Chinese Academy of Sciences Beijing China

In a 3-D closed geological body, in case “structural expanding” inside is induced by stress, it can produce the pressure difference between the expanding cell and surrounding rock, then generate a pumping force directed toward the cell and accelerate the directional flow of fluid in the strata. The structural style and conditions of gas reservoir-formation in the Kuqa depression are favorable to the structural pumping. According to similarity principle, a physical modeling of structure formation and gas filling process of the Kela 2 gas field has justified the occurrence of structural pumping and its important role in gas-reservoir formation with high efficiency under the compressive and well-sealed circumstance. Therefore, authors propose that structural pumping is an important mechanism of gas reservoir-formation with high efficiency in the Kuqa depression.

关键词： Kela 2 gas field, structural pumping, gas-reservoir formation mechanism, high efficiency,physical modeling.

Stratigraphic thermohistory and its implications for regional geoevolution in the Tarim Basin,NW china

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Science china Earth Sciences 2010年第10期53卷 1495-1505页

作者： WANG TieGuan1,DAI ShiFeng2,LI MeiJun1,ZHANG WeiBiao1,3,Qiu NanSheng1 & WANG GuangLi1 1 State Key Laboratory of petroleum Resources and Prospecting,china University of petroleum,beijing 102249,china 2 State Key Laboratory of Coal Resources & Safe Mining,china University of Mining & Technology,beijing 100083,china 3 exploration research Center,exploration & development institute,china Petrochemical Corporation,beijing 100083,china State Key Laboratory of petroleum Resources and Prospecting China University of Petroleum Beijing China State Key Laboratory of Coal Resources & Safe Mining China University of Mining & Technology Beijing China exploration research Center Exploration & Development Institute China Petrochemical Corporation Beijing China

Fourteen vitrinite reflectance profiles from the Tarim Basin,NW china,show that the vitrinite reflectance profiles of individual wells follow a faulted and dislocated dual-stage pattern in the eastern section of the Tazhong Uplift and in the Tabei *** reflectance values in these profiles change sharply at the unconformity beneath the Lower Carboniferous Bachu or Upper Devonian Donghetang Formations,where the overlying Triassic to Carboniferous strata are still in a mature phase within the "liquid oil window".However,the underlying Lower Paleozoic reached the overmature phase beyond the "liquid oil window" towards the end of the Silurian,or in the Early Devonian at the *** the vitrinite reflectance profiles are attributed to a continuous,single-stage pattern in the western section of the Tazhong Uplift,in which the Lower Paleozoic is also in an overmature phase,their overmaturity would have been achieved relatively late in geological *** stratigraphic thermohistory has the following implications to regional geoevolution:(1) The overmature Lower Ordovician to Cambrian strata in the eastern section of the Tazhong Uplift and in the Tabei Uplift,as well as in the Manjiaer Depression,could not have acted as the source kitchen for normal oil(so-called black oil);(2) The dissimilarity in vitrinite reflectance profiles between the eastern and western sections of the Tazhong Uplift reveals Early Paleozoic paleotectonic features,i.e.,lower at the east and higher at the west,whereas recent tectonic features formed since the Late Paleozoic are in reverse,i.e.,higher in the east and lower at the west;(3) Reconstruction of the denuded thickness of sediments overlying the Lower Ordovician strata suggests reconsideration on the paleotectonic features in the Tarim Basin;(4) Based on the sustained duration of the "liquid oil window" for overmature source beds,it is predicted that the Suntuoguole Lower Uplift between the Awati and Manjiaer Depressions is a

关键词： vitrinite reflectance profile faulted and dislocated dual-stage pattern paleotectonic features sustained "liquid oil window" period source kitchen

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 130 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

PETROLIFEROUS　PROVINCE　AND　RESOURCE　POTENTIAL　OF　THE　NORTHEAST　ASIA　THE　MOST　PROSPECTIVE　NEW──THE　MOST　PROSPECTIVE　NEW　PROVINCE　IN　ASIA

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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 exploration and development, CNPC.beijing, china, 100083)

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