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Nonlinear analysis on the coupling process of electromagnetic vibrator and earth

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Science china Earth Sciences 2005年第8期48卷 1175-1182页

作者： CHEN Zubin1,2. TENG Jiwen2. LIN Jun1, ZHANG Linhang1 & JIANG Zhongjin1 1. institute of Intelligent Instrument & Measurement Control Technology, Jilin University, Changchun 13002., china 2. institute of Geology & Geophysics, Chinese Academy of Sciences, beijing 10002., china institute of Intelligent Instrument & Measurement Control Technology Jilin University Changchun China institute of Geology & Geophysics Chinese Academy of Sciences Beijing China

The linear model based on the hydraulic pressure vibrator has been no longer adaptable to the electromagnetic vibrator. In order to realize the effective transmission of the limited energy from the vibrator to the ground, it is important to study the coupling model of the electromagnetic vibrator and the earth. In this paper, a nonlinear restore term was introduced to the coupling model because of the existence of a large amount of harmonics in the vibrator baseplate. The nonlinear vibration analysis was applied to the model by the multiscale method. In the course of energy transmission from the vibrator to the ground, ultraharmonic resonance was used to explain the generation of harmonics. An improved scheme was advanced to select the cross correlation reference signal in the vibrator seismic exploration. Good application results were obtained in field experiments.

关键词： vibrator, coupling model, electromagnetic, nonlinear vibration.

Velocity structure and active fault of Yanyuan-Mabian seismic zone―The result of high-resolution seismic refraction experiment

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Science china Earth Sciences 2008年第9期51卷 1284-1296页

作者： WANG FuYun1↑, DUAN YongHong1, YANG ZhuoXin1, ZHANG ChengKe1, ZHAO JinRen1, ZHANG JianShi1, ZHANG XianKang1, LIU QiYuan2. ZHU AiLan2. XU XiWei2.& LIU BaoFeng1 1 Geophysical exploration Center, china Earthquake Administration, Zhengzhou 450002. china 2.institute of Geology, china Earthquake Administration, beijing 10002., china Geophysical exploration Center China Earthquake Administration Zhengzhou China institute of Geology China Earthquake Administration Beijing China

The authors processed the seismic refraction Pg-wave travel time data with finite difference tomography method and revealed velocity structure of the upper crust on active block boundaries and deep features of the active faults in western Sichuan Province. The following are the results of our investigation. The upper crust of Yanyuan basin and the Houlong Mountains consists of the superficial low-velocity layer and the deep uniform high-velocity layer, and between the two layers, there is a distinct, and gently west-dipping structural plane. Between model coordinates 180-2.0 km, P-wave velocity distribution features steeply inclined strip-like structure with strongly non-uniform high and low velocities alternately. Xichang Mesozoic basin between 2.0 and 300 km consists of a thick low-velocity upper layer and a high-velocity lower layer, where lateral and vertical velocity variations are very strong and the interface between the two layers fluctuates a lot. The Daliang Mountains to the east of the 300 km coordinate is a non-uniform high-velocity zone, with a superficial velocity of approximately 5 km/s. From 130 to 150 km and from 2.0 to 310 km, there are extremely distinct deep anomalous high-velocity bodies, which are supposed to be related with Permian magmatic activity. The Yanyuan nappe structure is composed of the superficial low-velocity nappe, the gently west-dipping detachment surface and the deep high-velocity basement, with Jinhe-Qinghe fault zone as the nappe front. Mopanshan fault is a west-dipping low-velocity zone, which extends to the top surface of the basement. Anninghe fault and Zemuhe fault are east-dipping, tabular-like, and low-velocity zones, which extend deep into the base-ment. At a great depth, Daliangshan fault separates into two segments, which are represented by drastic variation of velocity structures in a narrow strip: the west segment dips westward and the east segment dips eastward, both stretching into the basement. The east margin f

关键词： western Sichuan high-resolution seismic refraction active fault velocity structure of the upper crust

核磁共振成像技术在油气运移路径观察与分析中的应用

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石油学报 2004年第3期25卷 44-47页

作者：苗盛张发强李铁军罗晓容侯平中国石油勘探开发研究院廊坊分院河北廊坊102800 中国石化勘探开发研究院北京100083 中国科学院地质与地球物理研究所北京100029

利用核磁共振成像技术观察圆管填玻璃珠物理模型内油的运移过程 ,对成像处理方法进行改进后 ,可以定量地观察和分析运移路径的形态特征及其内部的油饱和度。实验结果表明 ,被油占据的运移路径在整个通道内的比例取决于路径的形态 ,而路... 详细信息

利用核磁共振成像技术观察圆管填玻璃珠物理模型内油的运移过程 ,对成像处理方法进行改进后 ,可以定量地观察和分析运移路径的形态特征及其内部的油饱和度。实验结果表明 ,被油占据的运移路径在整个通道内的比例取决于路径的形态 ,而路径内的油饱和度并非 10 0 %。在实验模型的尺度上 ,运移路径上的油饱和度在运移过程中可达 80 %以上 ;在运移结束后 ,因运移路径收缩、分离 ,油饱和度只占 2.0 %～ 40 %。

关键词：核磁共振成像技术原油二次运移孔隙介质饱和度运移路径实验研究

鄂尔多斯盆地三叠系延长组页岩气形成条件及有利发育区预测

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天然气地球科学 2009年第3期20卷 460-465页

作者：徐士林包书景中国石油化工股份有限公司石油勘探开发研究院北京100083

页岩气勘探开发始于美国,并且取得较好的地质效果和经济效益。页岩气是一种非常规天然气,以吸附或游离状态为主要存在方式,表现为典型的"原地"成藏模式,其成藏受泥页岩厚度、分布、有机地球化学特征、孔隙度和渗透率条件、裂缝发育程度... 详细信息

页岩气勘探开发始于美国,并且取得较好的地质效果和经济效益。页岩气是一种非常规天然气,以吸附或游离状态为主要存在方式,表现为典型的"原地"成藏模式,其成藏受泥页岩厚度、分布、有机地球化学特征、孔隙度和渗透率条件、裂缝发育程度、盖层条件等的综合控制。鄂尔多斯盆地三叠系延长组泥页岩分布广泛,并且泥页岩厚度较大、有机碳含量较高、热演化适中、气测显示活跃、页岩中裂缝发育,页岩气资源潜力较大。初步研究表明鄂尔多斯盆地南部地区是三叠系延长组页岩气发育的有利区域,其中定边—华池—富县的"L"型区域是最有利发育区,向外围泥页岩气的潜力逐渐变小。

关键词：页岩气鄂尔多斯盆地资源潜力有利发育区

Molecular correlation of inclusion oil and free oil of Silurian reservoir sandstone in the Tarim basin (NW china)

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Molecular correlation of inclusion oil and free oil of Silur...

MESOZOIC PETROLEUM SUPERSYSTEM IN NORTH china

First Meeting Asia Current Research on Fluid Inclusion

作者： Zhijun Jin, Wenxuan Hu, Dongya Zhu exploration and production {2. of sinopec, beijing 100083, china Department of Earth Sciences, Nanjing University, Nanjing 2.0093, china

Previous stratigraphic, lithologic and organic geochemical studies indicate that there are two sets of Paleozoic hydrocarbon source rocks in the Tarim basin, NW china, i.e., the Lower-Middle Cambrian and Middle-Upper Ordovician sequences. More and more hydrocarbons have been proved to be generated from the Middle-Upper Ordovician source rock. However, it is still unclear whether the Lower-Middle Cambrian source rock has generated

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石油勘探与开发 1996年第6期23卷 85-92页

作者： Niu Jiayu Li Jinchao Xue Liangqing(Research institute of Petroleum exploration and Development, CNPC, {2., 100083, china)

ＭＥＳＯＺＯＩＣ　ＰＥＴＲＯＬＥＵＭ　ＳＵＰＥＲＳＹＳＴＥＭ　ＩＮ　ＮＯＲＴＨ　ＣＨＩＮＡＭＥＳＯＺＯＩＣＰＥＴＲＯＬＥＵＭＳＵＰＥＲＳＹＳＴＥＭＩＮＮＯＲＴＨＣＨＩＮＡ￥ＮｉｕＪｉａｙｕ；ＬｉＪｉｎｃｈａｏ；Ｘｕｅ... 详细信息

ＭＥＳＯＺＯＩＣ　ＰＥＴＲＯＬＥＵＭ　ＳＵＰＥＲＳＹＳＴＥＭ　ＩＮ　ＮＯＲＴＨ　ＣＨＩＮＡＭＥＳＯＺＯＩＣＰＥＴＲＯＬＥＵＭＳＵＰＥＲＳＹＳＴＥＭＩＮＮＯＲＴＨＣＨＩＮＡ￥ＮｉｕＪｉａｙｕ；ＬｉＪｉｎｃｈａｏ；ＸｕｅＬｉａｎｇｑｉｎｇ（Ｒｅｓｅａｒｃ...

关键词： Mesozoic era Oil resource Oil and gas exploration Regional tectonic Palaeoclimate North china Petroleum supersystem

Complex petroleum accumulating process and accumulation series in the buried-hill trend in the rift basin:An example of Xinglongtai structure trend,Liaohe subbasin

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Science china Earth Sciences 2008年第S2期51卷 108-116页

作者： GAO XianZhi1,PANG XiongQi1,LI XiaoGuang2.CHEN ZhenYan2.SHAN JunFeng2.LIU Feng1,ZOU ZhiWen1 & Li WeiLian1 1 Faculty of Resources and Information Technology,china University of Petroleum,beijing 102.49,china 2.exploration and Development institute of Liaohe Oilfield,Petrochina Liaohe Oil Company,Panjin 12.010,china Faculty of Resources and Information Technology China University of Petroleum Beijing China exploration and Development institute of Liaohe Oilfield Petrochina Liaohe Oil Company Panjin China

The buried-hill trend is a typical style of the petroliferous structure in the faulted basin of eastern china. The Xinglongtai structure trend in the Liaohe subbasin,Bohai Bay Basin is a buried faulted-hill trend resulting from the periodic faulting of the Tai’an-Dawa faults. The structure was cut by various faults,which are interlinked and constitute the conduits for petroleum migration. Petroleum accumulated in the Tertiary sandstones and pre-Tertiary basement of metamorphosed rocks through the migration pathways of the fault system. Petroleum in the structure was derived from different hydrocarbon kitchens to form a hybrid field complex. Petroleum charged the structure from different directions and accumulated in various reservoirs through different pathways in different times. The accumulations in the buried hill trend of Xingongtai are composed of two types of traps in the two stratigraphic systems: traps in the Tertiary sandstones were formed by the fault blocks and by the pinchout of the sandstone,and traps in the pre-Tertiary basement of metamorphosed rocks were formed by fissures in the inner part of the buried hills and by the unconformity near the surface of the buried hills.

关键词： faulted basin petroleum migration and accumulation petroleum occurrence buried hills Achaean basement Liaohe subbasin Bohai Bay basin

Detrital zircon geochronology and its provenance implications:responses to Jurassic through Neogene basin-range interactions along northern margin of the Tarim Basin,Northwest china

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Detrital zircon geochronology and its provenance implication...

The characteristics of chert from micro-disseminated gold deposits and their origin significance in southwestern Guizhou, china

中国科学院地质与地球物理研究所第十届(2.10年度)学术年会

作者： Zhong Li~* and Shoutao Peng~(*,+) * institute of Geology and Geophysics,Chinese Academy of Sciences,beijing,{2. + exploration & production Research institute,sinopec,beijing,{2.

Previously published research from the Kuqa Subbasin along northern margin of theTarim Basin shows five tectonic-depositional phases from Triassic to Neogene *** order to reveal additional detailed information on the nature of provenance terrains and tectonic attributes since late Mesozoic time,five typical sandstone samples from Jurassic-Neogene strata were collected for U-Pb dating of detrital *** constitution of detrital zircons of the Middle Jurassic sample is essentially unimodal and indicates major contributions from the South Tian Shan even Yili-Central Tian Shan,wherein most 370-450 Ma zircons probably resulted from tectonic accretion events between the Yili-Central Tian Shan block and South Tian Shan Ocean during Silurian and Devonian time,with sandstone provenance tectonic attributes of passive continental *** Lower Cretaceous sample shows a complicated provenance detrital zircon signature,with new peak ages of 2.0-330 Ma as well as 370(or 350)-450 Ma showing evident arc orogenic provenance tectonic attribute,probably reflecting a new provenance supply that resulted from denudation process whthin the South Tian Shan and South Tian Shan *** are no obvious changes within age probability spectra of detrital zircons between the Cretaceous and early Paleogene samples,which suggests that similar provenance types and basin-range framework continued from Cretaceous to Early Paleogene ***,unlike the Cretaceous and early Paleogene samples,an age spectra of the Miocene sample is relatively unimodal and similar to that of the Pliocene sample,with peak ages ranging between～392.and～458 Ma older than the comparable provenance ages(peak ages about 370-450 Ma)of the Middle Jurassic and Lower Cretaceous ***,we conclude that the South Tian Shan was rapidly exhumated and the southern South Tian Shan had become the main source of clastics for the Kuqa Subbasin since the Miocene epoch.

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Chinese Science Bulletin 1999年第S2期44卷 20-21页

作者： LIU Jiajun~1, LIU Congqiang~1, LIU Jianming~2.and GU Tuan~1 1. institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002. china 2. The Reseatrch Center of Mineral Resources {2., Chinese Academy of Sciences, beijing 100101, china institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Research Center of Mineral Resources exploration Chinese Academy of Sciences Beijing 100101 China

THE southwestern Guizhou Province has been acknowledged as one of the most important and potentialgold producing areas in the People’ s Republic of china and has attracted world-wide attention since thediscovery of a series of sediment-hosted micro-disseminated gold deposits in the last twenty years. Chertwidely occurs in the gold deposits. Study on geology and geochemistry of the chert may be important for abetter understanding of the forming condition and process of gold. 1 Characteristics of chert THE cherts are characterized by bedded, massived, pseudobrecciated and nodular structures, occurring insynsedimentary fault. The thickness of a chert bed generally varies from several meters to less than 2.meters, with the maximum up to about 70 meters. Host elements are simple and concentrated in thecherts. The SiO2./sub> concentration of the cherts varies from 86.4 % to 95.64 %, 91.95% on average

关键词： chert micro-disseminated gold deposits Guizhou.