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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,{2. 102.49 2.Basin and Reservoir research Center,China University of petroleum,{2. 102.49 3.institute of petroleum exploration and development,SINOPEC,{2. 100083 State Key Laboratory of petroleum Resource and Prospecting China Universityof Petroleum Beijing 102249

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

TTHE METHODOLOGY OF petroleum development GEOLOGY(Ⅲ)

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石油勘探与开发 1996年第4期 78-82页

作者： Qiu Yinan (research institute of {2. {3. and development, CNPC, beijing, 100083. P.R.China)

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关键词：

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 {2. {3. and development, CNPC, beijing, 100083.Yang Chiyin(Geology and development institute, Dagang Oil Field Group Ltd., Tianjin, 3.02.0)

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

Gas formation mechanism of marine carbonate source rocks in China

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Science China Earth Sciences 2005年第4期48卷 441-453页

作者： ZHAO Wenzhi1, WANG Zhaoyun1, HE Haiqing2. ZHANG Mingjie3. WANG Hongjun1, WANG Yunpeng4 & QIN Yong5 1. research institute of {2. exploration & development, petrochina, beijing 100083. China 2. petrochina exploration & Production, beijing 100011, China 3. Department of Geology, Lanzhou University, Lanzhou 73.000, China 4. Guangzhou Geochemical institute, Chinese Academy of Sciences, Guangzhou 510640, China 5. China University of Mining and Technology, Xuzhou 2.1000, China 1. research institute of {2. {3. & development 100083 PetroChinaBeijin China 2. petrochina exploration & Production 100011 Beijing China 3. Department of Geology Lanzhou University 730000 Lanzhou China 4. Guangzhou Geochemical institute Chinese Academy of Sciences 510640 Guangzhou China 5. China University of Mining and Technology 221000 Xuzhou China

By breaking through the conventional ideology on the study of gas-formation mechanism of source rocks which focused on merely the characteristics of source rocks them- selves, and based on the development and distribution characteristics of marine carbonate source rocks in the medium-to-bottom parts of the Chinese superimposed sedimentary basins as well as various processes in the course of gas generation and reservoir forming, the complex hydrocarbon-generating model of carbonates is established. Such a model concerns not only the “three-stage” gas formation characteristics of carbonates, but also the gas generation process due to a thermal cracking of oil and the re-generation process of gas from heated secondary organic matters during the gas-generation and reservoir-forming course. The high-quality hy- drocarbon generating matter of marine carbonate source rocks determined a high gas-oil ratio and tended to form paleo-oil-reservoirs, representing an enrichment process of organic matters. The thermal cracking of oil in palaeo-oil-reservoirs is an important means for the effective forma- tion of gas reservoirs. The secondary organic matters in carbonate reservoirs may regenerate gas after a secondary deep burial, thus becoming an effective gas source.

关键词： carbonate, three-stage hydrocarbon generation, inhibitive effect of maturity, oil-cracking gas, second-ary asphalt gas.

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,{2. 102.49,China 2.State Key Laboratory of petroleum Resource and Prospecting,China University of petroleum,{2. 102.49,China 3.research institute of exploration and development,Daqing Oilfield Company Ltd,Daqing 163.12.China 4 petroleum exploration and Production institute of SINOPEC,{2. 100083.China China Univ Petr Basin & Reservoir Res Ctr Beijing 102249 Peoples R China China Univ Petr State Key Lab Petr Resource & Prospecting Beijing 102249 Peoples R China Daqing Oilfield Co Ltd Res Inst Explorat & Dev Daqing 163712 Peoples R China SINOPEC Petr Explorat & Prod Inst Beijing 100083 Peoples R 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 (86.3.×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

A Study of Sedimentary Environment and Reservoir Quality of the Carboniferous Donghe Sandstonein the Tarim Basin

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Acta Geologica Sinica(English Edition) 1996年第4期70卷 395-406,454页

作者： Gu Jiayuresearch institute of {2. {3. and development, beijing research institute of {2. {3. and development Beijing

Very thick, fine-grained quartzose sandstone of the Lower Carboniferous (called the Donghe sandstone) was discovered in Donghe-1 well in the Tarim basin. Highly-productive commercial oil and gas flows were obtained when a well completion test was conducted. This important discovery proved that the quartzose sandstone is a prospecting target with good prospects. After that, other two paying oil and gas flows were found in the Lower Carboniferous in the Tazhong-4 and Tazhong-10 structures (Tazhong means central Tarim), equivalent to the Donghe sandstone. The Tazhong-4 structural oil field is the biggest oil field ever discovered. Therefore it is of guiding importance in oil and gas exploration to deepen the study of sedimentary and reservoir features and the sedimentary environment of the Donghe sandstone and to build a sedimentary model in order to understand the reservoir distribution pattern.

关键词： Donghe sandstone sedimentary facies sedimentary model tempestite pore type dissolved pore

THE METHODOLOGY OF petroleum development GEOLOGY(Ⅱ)

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石油勘探与开发 1996年第3期 93-96页

作者： Qiu Yinan (research institute of {2. {3. and development, CNPC, beijing, 100083. P. R. China)

ＴＨＥＭＥＴＨＯＤＯＬＯＧＹＯＦＰＥＴＲＯＬＥＵＭＤＥＶＥＬＯＰＭＥＮＴＧＥＯＬＯＧＹ（Ⅱ）￥ＱｉｕＹｉｎａｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＰｅｔｒｏｌｅｕｍＥｘｐｌｏｒａｔｉｏｎａｎｄＤｅｖｅｌｏｐｍｅｎ...

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关键词：

Geological evolution of the Dongsha Uplift and its surrounding depressions in the South China Sea

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Acta Oceanologica Sinica 1989年第4期8卷 559-564页

作者： Li Desheng and Jiang Renqi research institute of {2. {3. and development , P. O. Box 910. beijing 100083. China Res Inst petroleum exploration & Dev PO Vox 910 Beijing 100083 China

-The tectonic types of the Zhujiang (Pearl) River Mouth Basin in the South China Sea are epicontinental rift-depression basins. Prior to Early Cretaceous time, the Dongsha Uplift arid its surrounding depressions had been combined with the Eurasia Plate in a single unit. Many ENE-trending narrow rifted basins were formed in the third episode of Yanshan orogeny (Late Laramide). The rifted basins in the Paleocene and Eocene were stretched and extended, forming Zhu 1, Zhu 2.and Zhu 3.depressions. The Dongsha Uplift is located between Zhu 1 and Zhu 2.depressions . covering an area of 2. 000 Km2. Its geologic evolution can be divided into four stages:(1) Late Cretaceous - Paleocene block-faulting stage.(2. Eocene -Oligocene uplifting and eroding stage.(3. Late Oligocene - Early Miocene sustained subsiding stage.(4) Middle Miocene -Recent noncompensated subsiding *** Dongsha Uplift is a structural zone favourable for oil-gas accumulation.

关键词： Geological evolution of the Dongsha Uplift and its surrounding depressions in the South China Sea

GENETIC　CLASSIFICATION　AND　DISTRIBUTION　CHARACTERISTICS　OF　CONTINENTAL　petroleum　SYSTEMS　IN　CHINA

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石油勘探与开发 1996年第1期23卷 92-98页

作者： Don Lirong Li Wei Fang Xiang(Pesearch institute of petroleum {2. and {3., CNPC, beijing 100083. P. R. China)

ＧＥＮＥＴＩＣＣＬＡＳＳＩＦＩＣＡＴＩＯＮＡＮＤＤＩＳＴＲＩＢＵＴＩＯＮＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＣＯＮＴＩＮＥＮＴＡＬＰＥＴＲＯＬＥＵＭＳＹＳＴＥＭＳＩＮＣＨＩＮＡ￥ＤｏｎＬｉｒｏｎｇ；ＬｉＷｅｉ；Ｆａｎｇ... 详细信息

ＧＥＮＥＴＩＣＣＬＡＳＳＩＦＩＣＡＴＩＯＮＡＮＤＤＩＳＴＲＩＢＵＴＩＯＮＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＣＯＮＴＩＮＥＮＴＡＬＰＥＴＲＯＬＥＵＭＳＹＳＴＥＭＳＩＮＣＨＩＮＡ￥ＤｏｎＬｉｒｏｎｇ；ＬｉＷｅｉ；ＦａｎｇＸｉａｎｇ（ＰｅｓｅａｒｃｈＩｎｓ...

关键词： petroleum province petroleum supersystem petroleum system Continental sedimentary basin China