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

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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

Diagenesis history and reservoir quality of the Central Canyon sandstones in the Qiongdongnan Basin, South China Sea

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Diagenesis history and reservoir quality of the Central Cany...

Kaolinite Cement and Its Formation Mechanism in the Reservoir Sandstones from the Panyu Low-uplift,Pearl River Mouth Basin

第十五届全国古地理学及沉积学学术会议

作者： Guangxu Bi Guojun Chen chengfu lv Gongcheng Zhang Qianshan Zhou Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences University of Chinese Academy of Sciences Research Institute of China National Offshore Oil Corporation

＜正＞The Central Canyon sandstones, located in the Ledong-Lingshui Depression, the Qiongdongnan Basin, South China Sea, are the main reservoirs of the deep-water area. The present paper aims to study diagenetic processes and reservoir quality of the Central Canyon sandstones based on different segments. With an integrated approach of the identification of casting thin sections, X-ray diffraction, porosity and permeability measurements, scanning

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Kaolinite Cement and Its Formation Mechanism in the Reservoi...

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： CHEN Guojun DU Guichao WANG Qi lv chengfu ZHANG Gongcheng LI Wei LI Chao Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of Sciences Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of SciencesChina Graduate University of the Chinese Academy of Sciences CNOOC Research Center

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 Panyu low-uplift of the Pear River Mouth Basin were *** study shows that kaolinite cement is one of the most important diagenetic features of reservoir *** kaolinite cements began to develop early in eo-diagenesis and continued to B stage of middle diagenesis and its precipitation was controlled by multiple *** early stage of eo-diagenesis,its formation was mainly controlled by infiltration of meteoric water and provenance. Abundant Al3+ and Si2+ were supplied during infiltration of meteoric water and provided advantageous conditions for precipitation of early kaolinite in *** the burial depth increasing,diagenetic temperature increased and smectite tended to be transformed into ***’s one of the most important factors that affect the formation of kaolinite in *** late in B stage of eo-diagenesis to A stage of middle diagenesis,diagenetic environment has been changed from weak acid-weak alkaline environment to acid-strong acid *** acid conditions,feldspar grains were strongly dissolved and caused widely precipitation of kaolinite cements,with characteristics of co-exists of kaolinite and quartz *** A to B stage of middle diagenesis, the reservoir sandstones of the studied area have a deeper burial depth and diagenetic environment of weak aicd-weak *** this stage,kaolinite was gradually transformed into chlorite and illite *** study shows that the temperature that kaolinite begins to transformed into chlorite is approximately 120℃-140℃.Kaolinite illitization widely occurred in alkaline and weak alkaline conditions with high K+ irons in pore waters,especially when diagenetic temperature is over 120℃(burial depth over 3800m).In deeply

关键词： kaolinite cements formation mechanism diagenesis Panyu low-uplift Pearl River Mouth Basin

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东海陆架盆地瓯江凹陷古近系沉积演化

海洋地质前沿 2011年第8期27卷 1-7页

作者：吕成福陈国俊梁建设王琪李超张锦伟杜贵超李伟中国科学院油气资源研究重点实验室兰州730000 中海石油(中国)有限公司北京研究中心北京100027 中国科学院研究生院北京100049

根据钻井岩心、测井、地震和古生物等资料,对瓯江凹陷古近系地层的沉积相类型和沉积演化特征进行了系统分析。结果表明,瓯江凹陷古近系发育三角洲相、扇三角洲相、湖泊相、滨海相和浅海相5种沉积相类型。根据该区构造演化特征和沉积充... 详细信息

根据钻井岩心、测井、地震和古生物等资料,对瓯江凹陷古近系地层的沉积相类型和沉积演化特征进行了系统分析。结果表明,瓯江凹陷古近系发育三角洲相、扇三角洲相、湖泊相、滨海相和浅海相5种沉积相类型。根据该区构造演化特征和沉积充填特征,可将瓯江凹陷古近系沉积演化分为3个阶段:早古新世断层开始活动,形成了凹陷雏形,总体发育三角洲—湖泊—扇三角洲沉积体系;中—晚古新世断裂活动由鼎盛逐渐向衰弱转化,凹陷发育三角洲—滨海—浅海—扇三角洲沉积体系,至晚古新世末期闽浙隆起区物源的三角洲沉积体系发育规模进一步扩大;始新世凹陷处于东海盆地坳陷环境中,发育三角洲—滨海—浅海沉积体系。

关键词：沉积相沉积演化瓯江凹陷东海盆地

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

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Chlorite cement and its effect on the reservoir quality of s...

伊红-Y敏化TiO_2的制备及其可见光下光催化制氢性能

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Chen Guojun~1,Du Guichao~(1,3*),Zhang Gongcheng~2,Wang Qi~1,lv chengfu~1 and Chen Ji~(1,3) ~1Key Laboratory of Petroleum Resources Research,Institute of Geology and Geophysics,Chinese Academy of Sciences, Lanzhou 730000,China ~2CNOOC Research Center,Beijing 100027,China ~3Graduate 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 *** study shows that chlorite cements are one of the most important diagenetic features of reservoir *** precipitation of chlorite was controlled by multiple factors and its development occurred early in eo-diagenesis and continued till Stage A of middle *** precipitation of chlorite at the early stage was mainly affected by the sedimentary environment and *** Fe- and Mg-rich materials were supplied during the deposition of distributary channel sediments in the deltaic front setting and mainly in alkaline *** the burial depth increasing,smectite and kaolinite tended to be transformed into *** cements were completely transformed into chlorite in sandstones of the studied *** lithics rich in Fe and Mg materials were dissolved and released Fe and Mg into the pore *** cations precipitated as chlorite cements in middle diagenesis in an alkaline diagenetic *** coatings acted as porosity and permeability,thus helping preserve cements in the chlorite cemented *** 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

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太阳能学报 2007年第9期28卷 956-960页

作者：谢称福李越湘彭绍琴吕功煊李树本南昌大学化学系南昌330047 中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室兰州730000

采用溶胶-凝胶法在不同温度煅烧制得TiO_2,光还原沉积法进行载铂,浸渍法使伊红-Y负载在Pt-TiO_2表面,制得系列染料敏化的Eosin Y-Pt-TiO_2可见光光催化剂。以可见光光催化制氢为探针反应考察了制备的催化剂的活性,发现350℃煅烧的Eosin ... 详细信息

采用溶胶-凝胶法在不同温度煅烧制得TiO_2,光还原沉积法进行载铂,浸渍法使伊红-Y负载在Pt-TiO_2表面,制得系列染料敏化的Eosin Y-Pt-TiO_2可见光光催化剂。以可见光光催化制氢为探针反应考察了制备的催化剂的活性,发现350℃煅烧的Eosin Y-Pt-TiO_2可见光光催化活性最好。通过XRD、BET、FT-IR、UV-Vis漫反射等手段对样品进行了表征,发现伊红-Y的敏化扩展了TiO_2的可见光响应范围,使其在400～600nm有很强的吸收峰;随着TiO_2煅烧温度的降低,比表面积不断增大,表面羟基的数量也增加,吸附伊红-Y的量也不断增加,因此Eosin Y-Pt- TiO_2可见光光催化活性也相应提高。

关键词：光催化溶胶-凝胶法染料敏化可见光制氢

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冀东南堡油田开窗侧钻完井难点及技术对策

油气井测试 2010年第5期19卷 62-63,65页

作者：陈田勇周承富吕选鹏刘位渤海钻探井下技术服务分公司天津300283

针对冀东油田储层埋藏深、地质条件复杂、出砂情况严重,严重影响到侧钻完井的成功的情况,对套管固井射孔完井、筛管+封隔器完井、筛管+封隔器上部固井完井技术及难点进行了研究,提出了解决对策。并成功应用14口水平井,取得了良好的经济... 详细信息

针对冀东油田储层埋藏深、地质条件复杂、出砂情况严重,严重影响到侧钻完井的成功的情况,对套管固井射孔完井、筛管+封隔器完井、筛管+封隔器上部固井完井技术及难点进行了研究,提出了解决对策。并成功应用14口水平井,取得了良好的经济效益与社会效益。

关键词：侧钻筛管封隔器完井

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双语教学资源中心建设

高等工程教育研究 2007年第5期55卷 134-136页

作者：张聪颜洽茂楼程富吕萍刘雪薇朱军浙江大学教务处浙江大学理学院浙江大学校网中心浙江大学

为促进我国双语教学研究、实践及发展,由教育部立项,浙江大学承建了"全国高校双语教学资源中心(BTRC)"。双语教学资源中心的建设为高等院校双语教学教师提供双语课程、教材、教学研究、教学改革等教学资源信息的在线浏览和下载,也为教... 详细信息

为促进我国双语教学研究、实践及发展,由教育部立项,浙江大学承建了"全国高校双语教学资源中心(BTRC)"。双语教学资源中心的建设为高等院校双语教学教师提供双语课程、教材、教学研究、教学改革等教学资源信息的在线浏览和下载,也为教育部与有关高校的管理部门和广大师生构筑了一个交流平台。

关键词：双语教学资源中心信息化

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凝析气藏井下节流器数值模拟研究

石油钻采工艺 2010年第B11期32卷 112-114页

作者：周承富汪国庆吕选鹏陈田勇王玉忠渤海钻探工程公司井下技术服务分公司天津300270

在利用经验模型所求得的节流后压力、温度条件下有时可以生成水合物,而实际并没有生成水合物。针对这一工程问题,建立了井底节流嘴附近的数学模型,并以ks102井为例对其求解,得到了气液两相流体经过节流嘴后压力降、温度降;利用Fluent计... 详细信息

在利用经验模型所求得的节流后压力、温度条件下有时可以生成水合物,而实际并没有生成水合物。针对这一工程问题,建立了井底节流嘴附近的数学模型,并以ks102井为例对其求解,得到了气液两相流体经过节流嘴后压力降、温度降;利用Fluent计算流体动力学软件,对节流嘴附近的流体流动状况进行数值模拟,获得了节流嘴附近的速度、压力、温度场分布情况及其他一些特性。对得到的模拟结果与计算结果相比较,可看出二者的压力差为0.5~2.2 MPa,温度差为10.1~15.3℃,数学模型计算所得到的温度降要比根据模拟所得到的温度降要大,这与实际情况相符,并对上述差异进行了合理分析。

关键词：水合物凝析气井井下节流 CFD数值模拟