检索结果-南通市图书馆

Chlorite cement and its effect on the reservoir quality of sandstones from the Panyu low-uplift,Pearl River Mouth basin

引用

petroleum Science 2011年第2期8卷 143-150页

作者： Chen Guojun Du Guichao Zhang Gongcheng Wang Qi Lv Chengfu Key Laboratory of petroleum Resources Research Institute of Geology and Geophysics Chinese Academy of Sciences Lanzhou 730000 China CNOOC Research center Beijing 100027 China Graduate university of the Chinese Academy of Sciences Beijing 100049 China

Based on porosity and permeability measurements, mercury porosimetry measurements, thin section analyses, SEM observations, X-ray diffraction （XRD） analysis and granulometric analyses, diagenetic features of reservoir sandstones taken from the Zhuhai formation in the Panyu low-uplift of the Pear River Mouth basin were examined. This study shows that chlorite cements are one of the most important diagenetic features of reservoir sandstones. The precipitation of chlorite was controlled by multiple factors and its development occurred early in eo-diagenesis and continued till Stage A of middle diagenesis. The precipitation of chlorite at the early stage was mainly affected by the sedimentary environment and provenance. Abundant Fe- and Mg-rich materials were supplied during the deposition of distributary channel sediments in the deltaic front setting and mainly in alkaline conditions. With the burial depth increasing, smectite and kaolinite tended to be transformed into chlorite. Smectite cements were completely transformed into chlorite in sandstones of the studied area. Volcanic lithics rich in Fe and Mg materials were dissolved and released Fe2. and Mg 2. into the pore water. These cations precipitated as chlorite cements in middle diagenesis in an alkaline diagenetic environment. Chlorite coatings acted as porosity and permeability, thus helping preserve cements in the chlorite cemented sandstones. The reservoir quality of chlorite cemented sandstones is much better than sandstones without chlorite cements. Chlorite cements play an important role in the reservoir evolution that was mainly characterized by preserving intergranular porosity and forming better pore-throat structures of sandstones.

关键词： Chlorite cement diagenesis reservoir quality Panyu low-uplift Pearl River Mouth basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Primary migration and secondary alteration of the Upper Paleozoic gas reservoir in Ordos basin,china―Application of fluid inclusion gases

引用

Science china Earth Sciences 2008年第S1期51卷 165-173页

作者： GONG Se 1,2.,PENG PingAn 1 ,SHUAI YanHua 3.,DAI JinXing 3.&ZHANG WenZheng 4 1 Guangzhou Institute of Geochemistry,the Chinese Academy of Sciences,Guangzhou 510640,china 2.Common Wealth Scientific and Research Organization,{3. Resources,PO Box 13.,North Ryde,New South Wales,1670,Australia 3.Research Institute of {3. Exploration and Development,Petrochina,beijing 100083.china 4 Research Institute of Exploration and Development,Changqing {3. Corporation,Xi’an 71002.,china Guangzhou Institute of Geochemistry the Chinese Academy of Sciences Guangzhou 510640 China Common Wealth Scientific and Research Organization Petroleum Resources PO Box 136 North Ryde New South Wales 1670 Australia Research Institute

The composition of fluid inclusions(FI)often represents the initial geochemical characteristics of palaeo-fluid in reservoir *** on composition and carbon isotopic composition of gas during primary migration,reservoir-forming and subsequent secondary alterations are discussed through comparing fluid inclusion gas with coal-formed gas and natural gas in present gas reservoirs in the Ordos *** results show that primary migration of gas has significant effect on the molecular but not on the carbon isotopic composition of *** and diffusion fractionation took place during the secondary migration of gas in Upper Paleozoic gas reservoir according to carbon isotopic composition of methane in *** and carbon isotopic composition of natural gas were nearly unchanged after the gas reservoir forming through comparing the FI gases with the natural gas in present gas reservoir.

关键词： secondary alteration fluid inclusion carbon isotope Ordos basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Differential interformational velocity analysis as an effective direct hydrocarbon indicator under velocity reversal conditions,an example from the anomalously high temperature and over-pressured DF1-1 Gas Field in the Yinggehai basin,South china Sea

引用

petroleum Science 2009年第4期6卷 339-346页

作者： Zhu Hongtao Liu Keyu Chen Kaiyuan Li Min Huang Shengbing Key Laboratory of Tectonics and petroleum Resources of the Ministry of Education China University of GeosciencesWuhanHubei 430074China CSIRO petroleum P.O.Box 1130BentleyWA 6102Australia School of Energy Resources China University of GeosciencesBeijing 100083China

In the DF1-1 Gas Field in the Yinggehai basin, South china Sea, the velocity-depth plot and velocity spectra show significant variations from a linear trend, exhibiting a distinct reversal phenomenon. Velocity parameters derived from velocity spectral analysis of the seismic data and sonic logs indicate that the interval velocity reverses below 2.100 m (2.2.s two-way time (TWT)) in the DF1-1 Gas Field. Some direct hydrocarbon indicators (DHIs) models developed for the shallow strata cannot be simply applied to the moderately to deeply buried strata for direct exploration target recognition because the velocity reversal has caused the middle-deep gas reservoirs to exhibit a moderate or weak seismic amplitude. The hydrocarbon indicator method of “Differential Interformational Velocity Analysis (DIVA)” with the aid of other hydrocarbon indicating techniques was employed to effectively identify DHIs in the middle-deep strata under velocity inversion. The result has shown that the DIVA technique can be effectively used as a DHI in both the shallow and the middle-deep strata in the study area with the shallow strata characterized by Type I DIVA anomaly and the middle-deep strata characterized by the Type II DIVA anomaly.

关键词： DF1-1 Gas Field velocity reversal direct hydrocarbon indicator differential interformational velocity analysis South china Sea

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Kinetics of hydrocarbon generation for Well Yingnan 2.gas reservoir,Tarim basin,china

引用

Science china Earth Sciences 2008年第S1期51卷 107-114页

作者： XIAO ZhongYao 1,2.,XIAO XianMing 3.,MA DeMing 4 ,LU YuHong 2.&YANG ChaoShi 2.1{3. university of Mining&Technology,{2. 100083.china 2.Research Institutes of Exploration and Development,Tarim Oilfield Company,Petrochina,Korla 841000,china 3.Guangzhou Institutes of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,china 4 Department of Synthetic Physical-Chemical Prospecting,BGP,Zhuozhou 072.56,china china Univ Min & Technol Beijing 100083 Peoples R China Petrochina Tarim Oilfield Co Res Inst Explorat & Dev Korla 841000 Peoples R China Chinese Acad Sci Guangzhou Inst Geochem Guangzhou 510640 Peoples R China BGP Dept Synthet Phys Chem Prospecting Zhuozhou 072656 Peoples R China

Well Yingnan 2.an important exploratory well in the east of Tarim basin,yields high commercial oil and gas flow in *** gas components and carbon isotopic composition indicate that it belongs to sapropel type *** this region presents many suits of hydrocarbon source rocks,there are some controversies that natural gases were generated from kerogen gas or crude oil cracking gas at *** using the kinetics of hydrocarbon generation and carbon isotope,natural gas of Well Yingnan 2.is composed mainly of crude oil cracking gas,about 72.,it is generated from secondary kerogen gas of Cambrian-Lower Ordovician source rock and crude oil cracking gas of Mid-Upper Ordovician oil *** main oil and gas filling time is 65 Ma later in the Jurassic gas reservoir of Well Yingnan 2.so the gas reservoir belongs to late accumulation and continuous filling type.

关键词： kinetic migration and accumulation process crude oil cracking gas Well Yingnan 2 Tarim basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Tectonic stress field and its effect on hydrocarbon migration and accumulation in Mesozoic and Cenozoic in Kuqa depression, Tarim basin

引用

Science china Earth Sciences 2004年第Z2期47卷 114-124页

作者： ZENG Lianbo1, TAN Chengxuan2.& ZHANG Mingli3.1. Key Laboratory for Hydrocarbon Accumulation in petroleum university, Ministry of Education, {2. 102.49, china 2. Institute of Geomechanics, Chinese Academy of Geological Sciences, {2. 100081, china 3. Institute of Exploration and Development, china petroleum and Chemical Corporation, {2. 100083. china Key Laboratory for Hydrocarbon Accumulation in petroleum university Ministry of Education Beijing 102249 China Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081 China Institute of Exploration and Development China Petroleum and Chemical Corporation Beijing 100083 China

Through rock acoustic emission experiments and structural deformation analysis, the tectonic stages in Meso-Cenozoic in the Kuqa depression of the Tarim basin are firstly divided. Then, combining with rock magnetic fabric analysis and memory information, the distribution characteristics of tectonic stress field of every tectonic stage are quantificationally resumed. At the same time, according to the distribution relation of tectonic stress field of hydrocarbon for-mation stage by the finite element numerical simulation method and the known hydrocarbon reservoirs, the effects of tectonic stress field on hydrocarbon migration and accumulation are further analyzed. The Kuqa depression has mainly experienced six tectonic movements since Mesozoic. Except that the tectonic stress field of the Early Yanshan stage (2.8—13. Ma) showed northeast-southwest extensional stress field where the orientation of the maximum prin-cipal compressive stress (s 1) was northwest-southeast, the others were compressive stress field where the orientations of the maximum principal compressive stress (s 1) were near north-south. Along with the closure of the paleo-Tethys ocean, the Kuqa depression in the Indosinian stage (2.0—2.8 Ma) was in strong compressive circumstance with apparently big maximum principal stress (s 1) magnitude. Due to the equilibrium adjustment of interior Eurasia, the Kuqa depression in the Early Yanshan stage (2.8—13. Ma) was in weak extensional circumstance with appar-ently small maximum principal stress (s 1) magnitude. From the Late Yanshan stage (13.—65 Ma) on, with a series of collision events occurring at the south edge of Eurasia, the Kuqa depression was in compressive circumstance again in which the maximum principal stress (s 1) magnitude was from small to big in turn. The Late Himalayan stage (2.6—0.7 Ma) was the main tectonic deformation stage with the biggest principal compressive stress (s 1) magnitude. Tectonic stress field plays a dominant role in hydroca

关键词： tectonic stress field, Meso-Cenozoic, hydrocarbon formation, Kuqa depression, Tarim basin.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nitrogen isotopic geochemical characteristics of crude oils in several basins of china

引用

Science china Earth Sciences 2005年第8期48卷 1211-1219页

作者： CHEN Chuanping1,2. MEI Bowen1 & CAO Yacheng3.1. Jianghan petroleum university, Jingzhou 43.100,{2. 2. Huazhong university of Science and Technology, Wuhan 43.047,{2. 3. Nanjing Institute of Soil Science, Chinese Academy of Sciences, Nanjing 2.0008,{2. 1. Jianghan petroleum university 434100 Jingzhou China 2. Huazhong university of Science and Technology 430047 Wuhan China 3. Nanjing Institute of Soil Science Chinese Academy of Sciences 210008 Nanjing China

Nitrogen isotopic ratios of crude oils with different physical and chemical properties in several basins of china have been measured and their geochemistry has been studied ele-mentally combined with molecular organic geochemistry methods. The data indicate that δ 15N is in the range of ?6‰-2.‰. They vary with the oils in different sedimentary types of basins. The oils forming in the limnic environment have lower δ 15N with the value of about 1‰-5‰ whereas the oils in saline or semi-saline environment have higher δ 15N, with most samples being above 10‰ and some exceeding 17‰. The average nitrogen isotopic ratio of oils from the Ordovician formation in the Tarim basin is the lowest, with most samples having δ 15N below zero, which reflects possibly the characteristic of the oils originating mainly from the organic matter formed in marine carbonate sedimentary environment. The δ 15N distribution can be altered by fractionation. It increases obviously because of biodegradation and decreases during hydrocarbon migration. However, the effect of nitrogen isotopic fractionation in the short distance migration is uncon-spicuous.

关键词： nitrogen isotope, crude oil, sedimentary environment, isotopic fractionation, china.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Late stage thermal history of the Songliao basin and its tectonic implications: Evidence from apatite fission track (AFT) analyses

引用

Science china Earth Sciences 2007年第10期50卷 1479-1487页

作者： XIANG CaiFu1,2., FENG ZhiQiang3. PANG XiongQi1,2. WU HeYong3.& LI JunHong1,2.1 {3. and Reservoir Research center,{2. university of petroleum, beijing 102.49,{2. 2.Key Laboratory for Hydrocarbon Accumulation in{2. university of petroleum, Ministry of Education, beijing 102.49,{2. 3.Prospecting and Exploration Institute of Daqing Oil Field, Daqing 163.58,{2. 1. basin and Reservoir Research center China University of Petroleum Beijing 102249 China 2. Ministry of Education Key Laboratory for Hydrocarbon Accumulation in China University of Petroleum Beijing 102249 China 3. Prospecting and Exploration Institute of Daqing Oil Field Daqing 163458 China

Apatite Fission Track (AFT) data from the Songliao basin indicates that the late stage tectonic movements in the Songliao basin have zoning in space and episodes in time. The late stage tectonic movements started from the east part of the basin and migrated westward. AFT ages in the east part of the basin are older than those in the west part of the basin, suggesting that the uplift occurred earlier in the east than in the west. The denudation thickness in the east part of the basin is significantly greater than that in the centre and west. The thermal history evolved two episodes of rapid cooling and subsequent slow cooling processes. Age-depth relationship derived from the AFT data indicates a four-episode denudation history. Further Monte Carlo random simulation of the AFT data reveals the four changing points of the thermal evolution at 65 Ma, 43.5 Ma, 2. Ma and 15 Ma, respectively. The uplifting and denudation rates from different episodes of evolution are proportional to the plate convergence rate. Based on the above analyses and the regional geologic background, it is concluded that the late stage thermal events in the Songliao basin are the far field response to the subduction of the Pacific Plate under the Eurasian Plate. The first episode of the rapid cooling probably started at the end of the Nenjiang Formation, climaxed at the end of the Cretaceous and ceased at the Late Eocene. The subsequent slow cooling lasts another 15 Ma. The first episode of the evolution is the far field response to the major episode of the Yanshan Movement and subsequent series of the tectonic reorganization, especially the directional change of the Pacific Movement and also the subduction of the Indian Plate underneath the Eurasian Plate. While the second episode of the evolution is the far field response to the extension and closure of the Sea of Japan. Extension led to the migration and converging of the mantle heat flow to the Sea of Japan and resulted in the rapid cooling of

关键词： apatite fission track, late stage tectonic movement, episodic movement, plate tectonics, Songliao basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Controlling Factors Affecting Pressure Differential Development of the Upper Paleozoic Gas Reservoir in the Sulige and Yulin Area of the Ordos basin

引用

地学前缘 2009年第S1期16卷 126-127页

作者： Hao Xu~1,Junfeng Zhang~2.Chengzao Jia~3.Dazhen Tang~1,Ming Li~3.Wenzhong Zhang~1 1.Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism,Ministry of Education,china university of Geosciences({2.),{2. 100083.china. 2.Petrochina Exploration and Production Company,{2. 10072.,china 3.Research Institute of petroleum Exploration & Development,{2. 100083.china

The origin and distribution of Upper Paleozoic reservoirs pressure in mid-northem Ordos basin has attracted widespread attention in recent *** reservoir pressure of Sulige area shows characteristics of basically subnormal pressure,and the reservoir pressure of Yulin area shows characteristics of basically normal hydrostatic *** the sense of structural location,

关键词： Ordos basin Sulige area Yulin area formation pressure controlling factors

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Geochemical characteristics of organic matter-rich strata of lower Cambrian in Tarim basin and its origin

引用

Science china Earth Sciences 2004年第Z2期47卷 125-132页

作者： CHEN Jianfa1, SUN Shengli2. LIU Wenhui3.& ZHENG Jianjing3.1. petroleum university, {2. 102.49, china 2. Zhanjiang Ocean university, Zhanjiang 52.02., china 3. Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 73.000, china petroleum university Beijing 102249 China Zhanjiang Ocean university Zhanjiang 524025 China Lanzhou Institute of Geology Chinese Academy of Sciences Lanzhou 730000 China

The organic matter-rich strata of the Yurtusi Formation of Lower Cambrian are wildly spread and steady in the Tarim basin, in which cherts are developed, companied with phos-phorite. Al/(Al+Fe+Mn) ratio and Si/(Si+Al+Fe) ratio of cherts range from 0.002. to 0.0046 and 0.965 to 0.98, respectively, suggesting that cherts are formed in submarine hydrothermal activity and far away from terrestrial. Trace elements, such as As, Hg, Pb, Zn, Cu, Co, P, V, Ba, etc., are markedly rich in organic matter-rich sedimentary rocks of which Ba/Sr ratios are between 2..2.and 158.1. Compared with modern hydrothermal sediments, their Ba/Sr ratios are similar, it in-dicates that the organic matter-rich strata have the geochemical feature of submarine hydro-thermal sediments. The total content of rare earth elements (SREE) in cherts is from 8.81 to 56.682.mg/g, on average 3..41 mg/g and the SREE of cherts is between continental margin cherts and abyssal cherts. The LREE/HREE ratio of cherts varies from 1.01 to 3.56, which re-veals the characteristics of hydrothermal sediments. There is positive correlation between the total organic content (TOC) and Ba/Sr ratio which is geochemical index of submarine hydro-thermal activity, which indicates that the submarine hydrothermal activity obviously influences the richness of organic matter in the Yurtusi Formation.

关键词： Tarim basin, Yurtusi Formation, organic matter-rich strata, submarine hydrothermal activity.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study on lithogeochemistry of Middle Jurassic basalts from southern china represented by the Fankeng basalts from Yongding of Fujian Province

引用

Science china Earth Sciences 2006年第10期49卷 1020-1031页

作者： ZHOU Jincheng1,2. JIANG Shaoyong1,2. WANG Xiaolei1,2. YANG Jinghong 1,2.& ZHANG Mengqun 3.1. State Key Laboratory of Mineral Deposit Research, Nanjing university, Nanjing 2.0093. china 2. Department of Earth Sciences, Nanjing university, Nanjing 2.0093. china 3. Modern Analysis center, Nanjing university, Nanjing 2.0093. china 1. State Key Laboratory of Mineral Deposit Research Nanjing University Nanjing 210093 China 2. Department of Earth Sciences Nanjing University Nanjing 210093 China 3. Modern Analysis center Nanjing University Nanjing 210093 China

There exists an E-W trending Middle Jurassic volcanic zone in southern china. The Fankeng basalts in the Yongding basin of Fujian Province are considered to be a typical example. The Fankeng basalts have TiO2.contents in the range of 1.92.-3.2.%. They are classified as high-Ti basalts. They also have higher total Fe (averaging FeO* = 11.09%). The Middle Jurassic Fankeng basalts from southwestern Fujian have obvious distinctive lithogeochemical features from early Cre- taceous basalts from southeastern coast of china. They have higher HFSE, such as Th, Nb, Ta, Zr and Ti. Their element ratios related with HFSE, such as Zr/Ba, La/Nb, La/Ta ,Zr/Y, Ti/Y, Ba/Nb, K/Ti and Rb/Zr are similar to those of OIB. The most samples have ε Nd(T) of-0.70-0.2., which are near chondrite. Some samples have higher ε Nd(T) of ***, these basaltic magmas might be derived from depleted asthenospheric mantle. The lithogeochemical characteristics of the Fankeng basalts may be caused by interaction between asthenosphere and lithosphere at the time. The (Early-) Middle Jurassic basalts and gabbros from southeastern Hunan, southern Jiangxi and northern Guangdong provinces show similar geochemical features to those of the Fankeng basalts from the Yongding of Fujian. Occurrence of these OIB-type basalts in the area may be regarded as the petrological mark of upwelling of asthenosphere at the time. Upwelling of asthenosphere has led to tectonic extension and the formation of rifted basin in the area.

关键词： interaction between asthenosphere and lithosphere, lithogeochemistry, basalts, Middle Jurassic, southern china.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：