检索结果-南通市图书馆

Chinese Science Bulletin 2004年第S1期49卷 100-106页

作者： WANG Yunpeng PENG Ping'an LU Jialan liu dehan State Key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China

Natural gas releasing simulation experiments were carried out in laboratory for researching the gas storage capacity in state of high temperature and high pressure and its gas releasing potential in process of temperature decreasing and decompression. The exiting phase state was studied through measuring gas adsorption of coal and PVT phase calculating of natural gas. Gas volume, gas molecular and isotope compositions in process of temperature decreasing and decompression were measured, natural-gas yields released from the Upper Paleozoic coal strata after later Cretaceous (K3) were calculated and the formation of the reservoir was studied combining with the geological background. The results indicate that natural gas stored in coal has still bigger releasing potential after the uplift of Upper Paleozoic strata. There exists a weak gas supply-effluent equilibrium in the reservoir of Ordos Basin, which is another possible evidence that the Upper Paleozoic gas reservoir may be a deep basin gas reservoir.

关键词： coal temperature decreasing decompression natural gas releasing simulation experiment Ordos Basin.

Dating hydrocarbon generation and migration based on bitumen reflectance

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2001年第7期46卷 611-614页

作者： Xianming Xiao dehan liu Jiamo Fu Zufa liu Jiagui Shen Chinese Acad Sci Guanzhou Inst Geochem State Key Lab Organ Geochem Guangzhou 510640 Peoples R China

On the basis of thermal maturation theories of organic matter in sediments and an improved Harweil’s method, a method for dating hydrocarbon generation and migration by means of bitumen reflectance has been suggested. A few representative boreholes in the Tazhong Area of the Tarim Basin was investigated by this method. The results indicate that the three phases of bitumen from the Tazhong Area formed during Middle and Late Ordovician, Late Cretaceous-Early Tertiary, and Late Tertiary, respectively. This implicates that there were three phases of hydrocarbon generation and migration occurring in this area during geological history. This study provided a new idea for the geological application of geochemical data of bitumen.

关键词： bitumen reflectance maturity petroleum generation and migration.

Two kinds of Carlin-type gold deposite in southwestern Guizhou,China

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1999年第2期44卷 178-182页

作者： Hanping Zhuang Jialan Lu Jiamo Fu dehan liu Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China

Based on the organic geochemical studies on two typical Carlin-type deposits in southwestern Guizhou, as well as the comparison between the two deposits in terms of geological background,igneous rock, paleo-oilfield, lithofacies and paleogeographical and geochemical features, two kinds of Carlin-type deposit were proposed: Lannigou Type and Getang Type. The former includes Lannigou,Banqi and Yata gold deposits. These deposits are hosted by turbidite, geographically situated in the southwest of the mineralized district, and related genetically to paleo-oilfields. The latter includes Getang, Zimudang and Dachang gold (mercury and thallium) deposits, situated geographically in the northwest of the mineralized district where Emeishan basalt commonly occurs. These deposits are associated with reduction of coaly organic matter.

关键词： genetic type Carlin-type gold deposit southwestern Guizhou.

Genetic Relationship between Natural Gas Dispersal Zone and Uranium Accumulation in the Northern Ordos Basin, China

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2007年第3期81卷 501-509页

作者： GAN Huajun XIAO Xianming LU Yongchao JIN Yongbin TIAN Hui liu dehan State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou Guangdong 511640 Graduate School of the Chinese Academy of Sciences Beijing 100049 Faculty of Earth Resources China University of Geosciences Wuhan Hubei 430074

The Ordos Basin is well-known for the coexistence of oil, natural gas, coal and uranium. However, there has been little research to discuss the genetic relationship between them. In this paper, a case study of the Zaohuohao area in Dongsheng, Inner Mongolia, China, is conducted to investigate the genetic relationship between the natural gas and the uranium accumulation. Fluid inclusion data from the uranium-bearing sandstone samples indicate that the fluid inclusions formed in a gas-water transition zone. Using the homogeneous temperatures of aqueous inclusions coeval with hydrocarbon-bearing inclusions, combined with the buried history and paleo-temperature data, the gas-water transition zone reached the area at about 110 Ma. On the basis of this, the contents of Uranium （U） and Total Organic Carbon （TOC） of the samples were analyzed, and there was no obvious relation between them. With regard to the available data from both publications and this study, it is found that the U mineralization has a spatiotemporal accordance with the gas-water dispersal zone. Thus, it is believed that the natural gas in the gas-water zone is an effective reducer to the U-bearing ground water abundant in oxygen, which is the main factor to U accumulation. This result can be used as the reference to the U mines predicting and prospecting.

关键词： natural gas dispersal zone fluid inclusions uranium mine Ordos Basin

Determining the Main Gas-generation Phase of Marine Organic Matters in Different Occurrence States using the Kinetic Method

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2008年第1期82卷 197-205页

作者： WANG Yunpeng ZHAO Changyi WANG Zhaoyun WANG Hongjun ZOU Yanrong liu Jinzhong ZHAO Wenzhi liu dehan LU Jialan State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

This paper probes the determination of the main gas-generation phase of marine organic mattes using the kinetic method. The main gas-generation phase of marine organic matters was determined by coupling the gas generation yields and rates in geological history computed by the acquired kinetic parameters of typical marine organic matters （reservoir oil, residual bitumen, lowmaturity kerogen and residual kerogen） in both China and abroad and maturity by the EasyRo（%） method. Here, the main gas-generation phase was determined as Ro%=1.4%-2.4% for type Ⅰ kerogen, Ro%=1.5-3.0% for low-maturity type Ⅱ kerogen, Ro%=1.4-2.8% for residual kerogen, Ro%=1.5-3.2% for residual bitumen and Ro%=1.6-3.2% for reservoir oil cracking. The influences on the main gas-generation phase from the openness of the simulated system and the ＂dead line＂ of natural gas generation are also discussed. The results indicate that the openness of simulation system has a definite influence on computing the main gas-generation phase. The main gas-generation phase of type Ⅱ kerogen is Ro%=1.4-3.1% in an open system, which is earlier than that in a closed system. According to our results, the ＂dead line＂ of natural gas generation is determined as Ro=3.5 % for type Ⅰ kerogen, Ro=4.4-4.5% for type Ⅱ kerogen and Ro=4.6% for marine oil. Preliminary applications are presented taking the southwestern Tarim Basin as an example.

关键词： marine organic matter kerogen oil cracking hydrocarbon generating kinetics main gasgeneration phase southwestern Tarim Basin gas source kitchen

PRELIMINARY STUDY OF HYDROCARBONS GENERATED FROM FUSHUN COAL RESINITE (Ⅰ)——PRODUCTIVITY AND NATURE OF HYDROCARBONS

在线全文

学校读者我要写书评

暂无评论

Science in China,Ser.B 1988年第2期31卷 228-234页

作者：贾蓉芬傅家谟徐世平刘德汉张惠之 Guiyang Institute of Geochemistry Academia Sinica

Thermal simulation experiments were conducted to understand the productivity of hydrocarbons andtheir nature. It is shown by the experimental results that coal resinite has a high productivity of hydro-carbons and may be a good source rock, resulting in light oils of low maturity in early stage. Naturalgases generated from coal resinite are rich in high molecular weight gas hydrocarbons （C2+）, up to 19%（V/V）. So, if natural gases were generated from coal formation which is rich in resinites, they cannotbe recognized as dry gases as normal. Characteristics of liquid hydrocarbons generated from coal resinitesare: （i） main composition of aromatics in extracts, of which the amount will increase with increasingmaturity; （ii） major compounds of diterpenoids in aliphatics.

关键词： In PRODUCTIVITY AND NATURE OF HYDROCARBONS PRELIMINARY STUDY OF HYDROCARBONS GENERATED FROM FUSHUN COAL RESINITE high OC than

江苏句容-黄桥地区有机包裹体形成期次和捕获温度、压力的PVTsim模拟计算

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

岩石学报 2005年第5期21卷 1435-1448页

作者：刘德汉宫色刘东鹰曾庆辉肖贤明田辉申家贵李贤庆中国科学院广州地球化学研究所有机地球化学国家重点实验室广州510640 江苏油田地质科学研究院扬州225009

据流体包裹体显微镜观测和石油包裹体群的气体色谱和全烃色谱、色谱-质谱分析结果,句容和黄桥地区三叠系和下二叠系地层中的石油包裹体明显不同,句容地区三叠系灰岩储层中的石油包裹体的个体较大,在透光下为黄色-棕黄色,荧光显微镜下发... 详细信息

据流体包裹体显微镜观测和石油包裹体群的气体色谱和全烃色谱、色谱-质谱分析结果,句容和黄桥地区三叠系和下二叠系地层中的石油包裹体明显不同,句容地区三叠系灰岩储层中的石油包裹体的个体较大,在透光下为黄色-棕黄色,荧光显微镜下发亮黄色荧光,包裹体中气态烃的 C_1/C_(2-5)比值较低,液态烃中三环萜皖、五环三萜烷和规则甾烷系列的生物标志物化合物含量比较丰富,而句容和黄桥地区下二叠系石油包裹体比较细小,发黄色-黄绿色荧光,包裹体中气态烃的 C_1/C_(2-5)比值较高,液态烃中均难检测到甾萜烷系列的生物标志物。由流体包裹体均一温度等观测资料与捕获温度、捕获压力的 PVTsim的模拟计算结果:句容地区三叠系储层的石油包裹体捕获温度 Tr=107.9℃,捕获压力 Pr=289bar,约相当于白垩纪晚期(90～83Ma)充注成藏。句容地区下二叠深灰色灰岩中分布的油包裹体的捕获温度 Tr=123℃,捕获压力 Pr=305.95bar,反映白垩系晚期还有一期温度比较高的含烃流体充注的现象。黄桥地区在含 CO_2气藏的下二叠系存在有交切关系的,黄色和黄绿色两种荧光性质不同的石油包裹体,前者模拟计算的捕获温度 Tr=97.3℃,捕获压力 Pr=184.75bar,后者模拟计算的捕获温度 Tr=145.5℃,捕获压力 Pr=220.05bar,分别相当于白垩纪晚期(95～90Ma)和白垩纪末期(65～60Ma)有含烃流体运聚现象。但是,由于在白垩纪末-第三纪的抬升作用阶段,油气大量散失,因此在喜山期大量无机 CO_2充注成藏时期,储层中已不含烃类流体。

关键词：流体包裹体显微荧光均一温度 PVTsim 捕获温度捕获压力生物标志物

在线全文

学校读者我要写书评

暂无评论

肾动脉瘤介入治疗的方法及疗效

中华泌尿外科杂志 2015年第1期36卷 16-19页

作者：刘德翰袁锋夏向文梁惠民冯敢生华中科技大学同济医学院附属协和医院介入放射科武汉430022

目的探讨肾动脉瘤（renal artery aneurysm,RAA）腔内介入治疗的方法及疗效.方法回顾性分析2009年1月至2014年4月17例确诊为RAA并行介入治疗患者的临床资料.男7例,女10例.年龄20 ～ 67岁,平均（46.4±10.3）岁.体检发现5例,表现为腹... 详细信息

目的探讨肾动脉瘤（renal artery aneurysm,RAA）腔内介入治疗的方法及疗效.方法回顾性分析2009年1月至2014年4月17例确诊为RAA并行介入治疗患者的临床资料.男7例,女10例.年龄20 ～ 67岁,平均（46.4±10.3）岁.体检发现5例,表现为腹痛和腰痛各4例,表现为间断性肉眼血尿2例,表现为乳糜尿和少尿各1例.多发9例,单发8例.17例共31个动脉瘤,其中真性动脉瘤26个,假性动脉瘤5个;囊状动脉瘤17个,纺锤形或梭形、不规则形、实质内动脉瘤各4个,夹层动脉瘤2个.8个动脉瘤位于肾动脉主干,19个位于肾动脉二级、三级分支,4个位于肾实质内.6例行瘤腔栓塞＋载瘤动脉栓塞术,4例行瘤腔栓塞术,3例行载瘤动脉栓塞术,2例行裸支架辅助瘤腔栓塞术,1例行覆膜支架置入术,1例双侧RAA行右侧裸支架辅助瘤腔栓塞术＋左侧瘤腔栓塞术. 结果本组17例中16例一次手术成功.随访3～53个月,平均23个月,无严重并发症或死亡病例.术后1周3例尿潜血阳性者转为阴性.术后1个月12例的肉眼血尿、腹痛、腰背痛、发热等首发症状消失或明显减轻.术后3～12个月,实验室检查示SCr、BUN、尿常规等未见明显异常.复查超声或CT动脉造影示16例支架及弹簧圈无移位,8例载瘤动脉通畅,未见动脉瘤复发或瘤腔扩大.结论 RAA的腔内介入治疗创伤小、安全、有效.应根据RAA的具体情况制定手术方案.

关键词：肾动脉瘤血管造影栓塞支架介入治疗

在线全文

学校读者我要写书评

暂无评论

正烷烃的偶碳优势特征

石油与天然气地质 1981年第1期 57-65页

作者：盛国英范善发刘德汉粟能先周鸿名中国科学院贵阳地球化学研究所

岩石和原油中正烷烃的分布已成为广泛应用的有机地化指标,正烷烃的重量分布曲线形状、碳数分布范围、最大值碳数以及 OEP 值(或 CPI 值),已有效地应用于石油勘探中,成为划分原始成油母质类型、成熟度、运移以及原油对比、油源对比的实... 详细信息

岩石和原油中正烷烃的分布已成为广泛应用的有机地化指标,正烷烃的重量分布曲线形状、碳数分布范围、最大值碳数以及 OEP 值(或 CPI 值),已有效地应用于石油勘探中,成为划分原始成油母质类型、成熟度、运移以及原油对比、油源对比的实用参数。

关键词：偶碳优势沉积岩正烷烃原油对比烃源岩生油岩陆源高等植物岩石样品岩样有机质类型第三系

Robust Digital Predistortion for LTE/5G Power Amplifiers Utilizing Negative Feedback Iteration

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

ZTE Communications 2020年第3期18卷 49-56页

作者： liu Xin CHEN Wenhua WANG dehan NING Dongfang Tsinghua University Beijing 100084China RHP System Department ZTE CorporationXi’an 710114China

A robust digital predistortion(DPD)technique utilizing negative feedback iteration is introduced for linearizing power amplifiers(PAs)in long term evolution(LTE)/5G *** from the conventional direct learning and indirect learning structure,the proposed DPD suggests a two-step method to identify the ***,a negative feedback based iteration is used to estimate the optimal DPD *** the corresponding DPD parameters are extracted by forward modeling with the input signal and optimal DPD *** iteration can be applied to both single-band and dual-band PAs,which will achieve superior linear performance than the conventional direct learning DPD while having a relatively low computational *** measurement is carried out on a broadband Doherty PA(DPA)with a 200 MHz bandwidth LTE signal at 2.1 GHz,and on a 5G DPA with two 10 MHz LTE signals at 3.4/3.6 GHz for validation in dual-band scenarios.

关键词： 5G digital predistortion power amplifiers negative feedback iteration