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Two accumulation modes of marine-origin natural gas in the Tarim Basin

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Science Bulletin 2007年第S1期 215-223页

作者： wang hongjun1, zhao wenzhi1, hu {3. & hu jianfeng2 1 research institute of petrochina Exploration and development, beijing 100083. china 2 research institute of the Tarim Oilfield Corporation, petrochina, Korla 841000, china

Hetianhe gas field, Lungudong gas field and Tazhong gas field are marine marine-origin natural gas reservoirs in the craton area in the Tarim Basin. The natural gas is generated from Cambrian source rocks. The simulation experiment indicated that the cracking of the dispersedly dissoluble organic matter remaining in the source rocks is the main origin of marine natural gas. There are two modes to form gas reservoirs, one is the dry gas reservoir such as Hetianhe gas field, in which gas accumulated on the fault belt with violent tectonic movement, the other is condensate gas reservoir formed on the inheriting uplift such as Lunnan and Tazhong gas fields. The hybrid simulation experiment of cracking gas and crude oil indicated that crude oil accumulated on a large scale in those uplift belts at the early stage, and natural gas filled the ancient oil reservoir at the late stage, and the gas reservoirs were formed after the gas mixed with the crude oil.

关键词： Tarim Basin marine natural gas origin cracking accumulation

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 Petroleum Exploration & development, petrochina, beijing 100083. china 2. petrochina Exploration & Production, beijing 100011, {13. 3. Department of Geology, Lanzhou University, Lanzhou 73.000, {13. 4. Guangzhou Geochemical institute, Chinese Academy of Sciences, Guangzhou 510640, {13. 5. {13. University of Mining and Technology, Xuzhou 221000, {13. research institute of Petroleum Exploration & development PetroChinaBeijin China petrochina Exploration & Production Beijing China Department of Geology Lanzhou University Lanzhou China Guangzhou Geochemical institute Chinese Academy of Sciences Guangzhou China china University of Mining and Technology 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.

Identification of marine natural gases with different origin sources

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Science china Earth Sciences 2008年第S1期51卷 148-164页

作者： wang YunPeng 1 ,zhao ChangYi 2 ,wang zhaoYun 2 ,wang hongjun 2 ,TIAN Jin 1 ,ZOU YanRong 1 &LIU JinZhong1 1State Key Laboratory of Organic Geochemistry,Guangzhou institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,china 2institute of Geology,research institute of Petroleum Exploration and development,petrochina,{13. 100083.china State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China institute of Geology Research Institute of Petroleum Exploration and Development PetroChina Beijing China

Kinetic experiments of gas generation for typical samples of marine gas precursors including low-maturity kerogen,residual kerogen and oil as well as dispersed liquid hydrocarbon(DLH)in source rocks were performed by closed system,and the evolution trends of molecular and isotopic compositions of natural gases from different precursors against the maturity(R0%)at laboratory conditions were *** diagrams of gas origin were calibrated by using the experimental data.A diagram based on the ratio of normal and isomerous butane and pentane(i/nC4-i/nC5)was proposed and used to identify the origins of the typical marine natural gases in the Sichuan Basin and the Tarim Basin, *** the maturities of natural gases were estimated by using the statistical relationships between the gaseous molecular carbon isotopic data and maturities(δ13.-R 0 %)with different *** results indicate that the molecular and isotopic compositions of simulated gases from different precursors are different from each *** example,the dryness index of the oil-cracking gas is the lowest;the dryness indices of gases from DLH and kerogen in closed system are almost the same;and the dryness index of gases from residual kerogen is extremely high,indicating that the kerogen gases are very dry;the contents of non-hydrocarbon gases in kerogen-cracking gases are far higher than those in oil-cracking and DLH-cracking *** molecular carbon isotopes of oil-cracking gases are the lightest,those of kerogen in closed system and GLH-cracking gases are the second lightest,and those of cracking gases from residual kerogen are the *** calibration results indicate that the diagrams of ln(C1/C2)-ln(C2/C3.andδ13.2-δ13.3.ln(C2/C3.can discriminate primary and secondary cracking gases,but cannot be used to identify gas origin sources,while the diagram of i/nC4-i/nC5 can differentiate the gases from different *** application results of these diagrams show that gas mixtures ext

关键词： marine organic matter gas origin sources kerogen oil-cracking gas origin identification carbon isotope

Two accumulation modes of marine-origin natural gas in the Tarim Basin

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Chinese Science Bulletin 2007年第A1期52卷 215-223页

作者： wang hongjun zhao {3. hu guoyi hu jianfeng research institute of petrochina Exploration and {3. Beijing 100083 China research institute of the Tarim Oilfield Corporation PetroChina Korla 841000 China

关键词：塔里木盆地天然气资源开发资源积蓄

Geochemical study on oil-cracked gases and kerogencracked gases (I)——Experimental simulation and products analysis

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Science china Earth Sciences 2009年第S1期52卷 1-9页

作者： ZHANG Min1,2,huANG Guanghui1,2,hu {3.3.& zhao HongJing1,2 1 Department of Geochemistry,Yangtze University,Jingzhou 43.023.china 2 Key Laboratory of Oil & Gas Resources and Exploration Technology,Ministry of Education,Yangtze University,Jingzhou 43.023.china 3.research institute of Petroleum Exploration and development,petrochina,beijing 10083.china 1. Department of Geochemistry Yangtze University Jingzhou 434023 China 2. Key Laboratory of Oil & Gas Resources and Exploration Technology Ministry of Education Yangtze University Jingzhou 434023 China 3. research institute of Petroleum Exploration and development PetroChina Beijing 10083 China

Eight types of samples:crude oil,chloroform bitumen A,oil fractions(saturated hydrocarbon,aromatic hydrocarbon,resin and asphaltene) ,source rock and kerogen,have been pyrolyzed in laboratory. The products have also been systematically analyzed. The results indicate that gaseous hydrocarbons yields for different types of samples at various temperatures are different,especially for different fractions of crude oil. There is difference for molecular compositions. The C2/C3.ratios of cracking gases in different types of samples have positive relationships with C2/iC4 as well as pyrolysis temperatures. Moreover,the ratios of C2/C3.and C2/iC4 are about 2 and 10,respectively,at the temperature of 500℃― 550℃. However,when the temperature is higher than 500℃,the ratios of C1/C2,C1/C3.and dryness index for gases cracking from source rock and kerogen are higher than those from oil and bitumen,indicating an important different feature between oil-cracked gases and kerogen-cracked gases at the high or over-mature stage. The ratios of C1/C2,C1/C3.vary more than 10% at 500℃―800℃. In this paper,experimental results can provide important academic foundation and useful geochemical parameters for distinguishing of oil-cracked gases and kerogen-cracked gases.

关键词： oil cracking kerogen cracking opened pyrolysis system gas yield oil fraction

The Nitrogen Components in RFCC Diesel Oil

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The Nitrogen Components in RFCC Diesel Oil

“中国西南储气能力”建设的技术基础与发展思考

甘肃省化学会成立六十周年学术报告会暨二十三届年会

作者： Xingguo Cheng~(1,2), Ting zhao~1, Xingguo Fu~2, Zhide hu~1(1 Department of Chemistry, Lanzhou University, Lanzhou 73.000, P.R. china 2 Lanzhou Lube oil R(?)D {3. of petrochina, Lanzhou 73.060, P.R. china)

This paper described a simple method to separate and identify the nitrogen compounds in RFCC diesel oil. A 2% HSO-CHCHOH solution was used to extract nitrogen compounds from RFCC diesel oil. Then the nitrogen-rich solution was further separated to four fractions by a silica gel column liquid-solid chromatography. Two discrete fractions containing neutral and basic nitrogen compounds were identified by APCI and GC-MS. The results indicated that the nitrogen compounds in RFCC diesel oil were anilines, quinoline, indole, carbazole and their derivatives.

关键词： nitrogen compounds RFCC diesel oil mass spectrometry GC-MS APCI

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天然气工业 2024年第2期44卷 1-13页

作者：胡勇王梦雨罗瑜李隆新彭先赵梓寒中国石油西南油气田公司中国石油西南油气田公司勘探开发研究院

为保障国家天然气安全平稳供应,2019年国家能源局启动了川渝天然气千亿立方米级“气大庆”的建设项目,将四川盆地天然气储气调峰和战略应急保供能力建设提升至国家战略安全高度。此外,中国石油在“十四五”期间确立了打造“西南储气中... 详细信息

为保障国家天然气安全平稳供应,2019年国家能源局启动了川渝天然气千亿立方米级“气大庆”的建设项目,将四川盆地天然气储气调峰和战略应急保供能力建设提升至国家战略安全高度。此外,中国石油在“十四五”期间确立了打造“西南储气中心”的战略目标,积极攻关各项地下储气库(以下简称储气库)建库技术难题,已初步形成“西南储气中心”建设格局。为此,在分析四川盆地建设储气库面临的挑战基础上,系统梳理总结了中国石油近17年在四川盆地的发展规划、建设现状、技术进展等方面的成果,并对打造“中国西南储气能力”提出了具体的攻关方向。研究结果表明:(1)四川盆地天然气资源丰富且拥有与全国天然气管网互连互通的完善管网设施,能够为盆地储气库建设提供坚实基础;(2)提出了复杂盆地气藏的“十指标”选址体系,建立了完善的储气库库址优选技术;(3.形成了储气库建库运行七大特色技术,健全了碳酸盐岩气藏建库主体技术系列;(4)构建了国内首个储气库地质体、井、地面完整性管理评价技术体系,保障了储气库安全稳定运行。结论认为,为支撑国家天然气千亿立方米级“气大庆”建设,提出了“中国西南储气能力”建设的概念,其核心是以中国石油初步建成的企业级“西南储气中心”为基础,走出单一油公司储气库建设模式,建立政府主导协调、跨企业的储气库协同共建共享共营机制,全面推动四川盆地整体储气能力建设,保障国家天然气能源安全。

关键词：中国西南储气能力四川盆地地下储气库复杂气藏条件选址完整性管理

Facile preparation of Ag_(2)S/KTa_(0.5)Nb_(0.5)O_(3. heterojunction for enhanced performance in catalytic nitrogen fixation via photocatalysis and piezo-photocatalysis

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Green Energy & Environment 2023年第6期8卷 1630-1643页

作者： Lu Chen Junfeng wang Xiaojing Li Jiayu Zhang Chunran zhao Xin hu hongjun Lin Leihong zhao Ying Wu Yiming He Department of Materials Science and Engineering Zhejiang Normal UniversityYingbin Road 688Jinhua321004China Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical ChemistryZhejiang Normal UniversityYingbin Road 688Jinhua321004China College of Geography and Environmental Sciences Zhejiang Normal UniversityJinhua321004China

In this work, a novel heterojunction composite Ag_(2)S/KTa_(x)Nb_(1-x)O_(3.was designed and synthesized through a combination of hydrothermal and precipitation procedures. The Ta/Nb ratio of the KTa_(x)Nb_(1-x)O_(3.and the Ag_(2)S content were optimized. The best 0.5% Ag_(2)S/KTa_(0.5)Nb_(0.5)O_(3.(KTN) sample presents an enhanced photocatalytic performance in ammonia synthesis than KTN and Ag_(2)S. Under simulated sunlight, the NH_(3.generation rate of 0.5% Ag_(2)S/KTN reaches 2.0 times that of pure KTN. Under visible light, the reaction rate ratio of the two catalysts is ***, XPS, and TEM analysis revealed that Ag2S was intimately decorated on the KTN nanocubes surface, which promoted the electron transfer between the two semiconductors. The band structure investigation indicated that the Ag_(2)S/KTN heterojunction established a type-Ⅱ band alignment with intimate contact, thus realizing the effective transfer and separation of photogenerated carriers. The change in charge separation was considered as the main reason for the enhanced photocatalytic performance. Interestingly, the Ag_(2)S/KTN composite exhibited higher NH3.eneration performance under the combined action of ultrasonic vibration and simulated sunlight. The enhanced piezo-photocatalytic performance can be ascribed that the piezoelectric effect of KTN improved the bulk separation of charge carriers in KTN. This study not only provides a potential catalyst for photocatalytic nitrogen fixation but also shows new ideas for the design of highly efficient catalysts via semiconductor modification and external field coupling.

关键词： Photocatalytic nitrogen fixation Ag_(2)S/KTa_(0.5)Nb_(0.5)O_(3. Type-II heterojunction Piezo-photocatalysis Charge separation

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凝析油回收和天然气液化动态仿真模拟

新疆石油地质 2003年第4期24卷 329-331页

作者：熊钰赵明张健西南石油学院四川南充637001 大港勘探开发技术研究中心天津300028 重庆气矿大竹作业区重庆635100

焦汤绝热节流和透平机是凝析气轻烃回收和天然气液化的主要设备。给出了新的考虑效率核算的凝析气轻烃回收和天然气液化二级低温动态仿真模拟模型,利用PR方程对某凝析气藏地面工艺中的绝热节流膨胀和透平膨胀深冷分离过程进行了仿真模... 详细信息

焦汤绝热节流和透平机是凝析气轻烃回收和天然气液化的主要设备。给出了新的考虑效率核算的凝析气轻烃回收和天然气液化二级低温动态仿真模拟模型,利用PR方程对某凝析气藏地面工艺中的绝热节流膨胀和透平膨胀深冷分离过程进行了仿真模拟。结果表明,该方法可以较好地描述焦-汤绝热节流和透平膨胀过程。

关键词：凝析油回收天然气液化仿真模拟