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Seismic multi-arch structures in East china

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Science china Earth Sciences 2006年第2期49卷 133-146页

作者： YANG Wencai1 & CHEN Zhide2 1.institute of Geology, Chinese Academy of Geological Sciences, beijing 100037, china 2.Daqing institute of Petroleum exploration and production, Daqing 163712, china 1. institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China 2. Daqing institute of Petroleum exploration and production Daqing 163712 China

In previous papers (Wencai, 2002, 2003), the author has analyzed the deep seismic reflection profiles along some of the Mesozoic plutons in East china, and has pointed out that the crustal structures around these intrusions usually correlate with a special seismic fabric called the seismic multi-arch structure. This paper will continue to show main characteristics of the seismic multi-arch structures and discuss their relationship with mantle-origin magmatism and the lithospheric thinning process. Calibration of seismic reflectors in Chinese continental drilling sites shows that small-scale arch-like reflectors can be generated by fractured eclogites or other plutons, they do not belong to the multi-arch structure specially discussed in the paper. The multi-arch structure is char-acterized by several arch-like reflectors distributed in both the upper and lower crust with granitoid plutons or stocks exposed on the surface, which do not have obvious negative Europium anomalies. Based on the distribution pattern of arch reflectors, the multi-arch magmatic structures can be divided into three main types, namely the simple vertical combination type, the spread arch magmatic struc-ture and the arch-bouquet structure. All of them correlate to mantle-origin magmatism, but occur in different places. The spread arch magmatic structures occur within a Mesozoic/Cenozoic rift zone with very thin and hot lithosphere. The vertical combination type of the multi-arch structures occurred near the rift zones where lithosphere was thin and hot. The arch-bouquet magmatic structures occur far from the rift zones where the lithosphere is not hot. The continental rifting acted as the late episode of the lithospheric thinning process seeing that the rift zones usually coincide with the thinnest parts of the lithosphere in East china. In different locations within the lithospheric thinning areas, mantle-origin magmatic activities have different characteristics, which might generate different

关键词： deep seismic reflection, multi-arch structure, eclogite bodies, mantle-origin magmatism, East china.

A kind of coccoid dinoflagel-lates-like fossils gives a new explanation of source of dinosterane in the Early-Middle Cambrian

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Chinese Science Bulletin 2001年第5期46卷 420-423,442页

作者： BIAN Lizeng, ZHANG Shuichang, ZHANG Baomin, MAO Shaozhi & YIN LeimingDepartment of Earth Sciences, Nanjing University, Nanjing 210093,china Key Laboratory of Petroleum Geochemistry, china National Petroleum Corporation, beijing 100083, china research institute of Petroleum exploration and Development, china National Petroleum Corporation, beijing 100083, china china University of Geosciences, beijing 100083, china Nanjing institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, china Department of Earth Sciences Nanjing University Nanjing China Key Laboratory of Petroleum Geochemistry China National Petroleum Corporation Beijing China research institute of Petroleum exploration and Development China National Petroleum Corporation Beijing China china University of Geosciences Beijing China Nanjing institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing China

The coccoid fossils covered with thick gelatinous envelop containing several gametes are discovered in gyps and salt deposits of Cambrian, H4 well and chert bed of the base of Yuertus Formation (∈11) of Xiaoerbulake Section. The fossils are described and compared with coccoid dinoflagellates. These fossils may be a coccoid life-cycle stage (vegetative cyst) of coccoid dinoflagellates. If this identification is correct, the coccoid dinoflagellates-like fossils could give a reasonable explanation of the dinoflagellate-specific biomarkers from Cambrian, H4 well, Tarim Basin.

关键词： coccoid dinoflagellates-like fossils dinoflagellate-specific biomarkers Cambrian Tarim Basin.

水平井筒气液两相变质量流动流型转变实验研究

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石油学报 2004年第3期25卷 83-85页

作者：薄启亮吴宁石油大学北京102249 中国石化勘探开发研究院北京100083

在对水平井筒气、液两相变质量流动的流型转变进行了理论研究 ,在此基础上 ,设计并建立了流型转变实验装置 ,对水平井筒气、液两相变质量流动的流型转变进行了模拟实验研究。在轴向为气、液两相流动的前提下分别进行了上管壁单孔眼注入... 详细信息

在对水平井筒气、液两相变质量流动的流型转变进行了理论研究 ,在此基础上 ,设计并建立了流型转变实验装置 ,对水平井筒气、液两相变质量流动的流型转变进行了模拟实验研究。在轴向为气、液两相流动的前提下分别进行了上管壁单孔眼注入和下管壁单孔眼注入的流型转变实验研究 ,获得了大量的实验数据。根据实验数据修正了理论计算模型。

关键词：水平井筒气液两相流动变质量流型模拟实验计算模型

FLEXIBLE NEW FCC TECHNOLOGY TO MEET THE EVER CHANGING MARKET DEMAND

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石油学报(石油加工) 2000年第5期16卷 82-84页

作者： CHEN Zu bi,LI Cai ying (research institute of Petroleum Processing,beijing 100083.china) research institute of Petroleum Processing SIN OPEC 北京 100083

Being a main conversion process,FCC is evolving toward processing more heavier and dirtier feeds,and to produce varied product slates to meet the local market *** many of the product demands made on the FCC process operator are seemingly ***,with the advance of FCC process and catalyst manufacture technology over the past few years,these contradictories can be solved *** VR FCC,maximized distillate production(MDP) technique and the maximizing gas and distillate(MGD) process are the *** data of each example will be revealed and shown on the poster.

关键词： FCC technology market demand

The productivity evaluation model and its application for finite conductivity horizontal wells in fault block reservoirs

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Petroleum Science 2010年第4期7卷 530-535页

作者： Jiang Hanqiao Ye Shuangjiang Lei Zhanxiang Wang Xing Zhu Guojin Chen Minfeng Key Laboratory of Petroleum Engineering Ministry of Education China University of Petroleum Beijing 102249 China research institute of Petroleum exploration and Development PetroChina Beijing 100083 China research institute of china National Offshore Oil Corporation Beijing 100027 China

It is very difficult to evaluate the productivity of horizontal wells in fault block reservoirs due to the influence of fault *** the basis of the method of images and source-sink theory,a semianalytical model coupling reservoir and finite conductivity horizontal wellbore flow dynamics was built,in which the influence of fault sealing was taken into *** distribution of wellbore flow and radial inflow profiles along the horizontal interval were also *** impact of the distance between the horizontal well and the fault on the well productivity was quantitatively *** on this analysis,the optimal distance between the horizontal well and the fault in banded fault block reservoirs could be *** to the field application,the relative error calculated by the model proposed in this paper is within ±15%.It is an effective evaluation method for the productivity of horizontal wells in fault block *** productivity of the horizontal well increases logarithmically as the distance between the horizontal well and the fault *** optimal distance between the horizontal well and the fault is 0.25-0.3 times the horizontal well length.

关键词： Fault block reservoir horizontal well finite conductivity productivity evaluation well location design

Analysis on china's Future Energy Mix and Oil/Gas Demand Under Low-Carbon Energy Constraints (II)

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china Chemical Reporter 2010年第1期21卷 9-11页

作者： Zhang Kang,exploration and production research institute,sinopec Corp

***,gas and coal demand to remainhigh amid low-carbon energy *** and gas demand to rise significantlyFrom energy conservation to low-carbon andstrengthened low-carbon scenarios,thesame-year oil demand shows declines *** as an example for 2020,ifoil demand were 100% under the energyconservationscenario,it would be 71.3%for low-carbon and 68.6% for

关键词： scenarios strengthened conservation earlier sustai

Online application of automatic surface quality inspection system to finishing line of cold rolled strips

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Journal of University of Science and Technology beijing 2003年第4期10卷 38-41页

作者： Hao Sun, Ke Xu, and Jinwu XuNational Engineering research Center of Advanced Rolling, University of Science and Technology beijing, beijing 100083, china National Engineering research Center of Advanced Rolling. University of Science and Technology beijing Beijing 100083 China

An automatic surface quality inspection system installed on a finishing lineof cold rolled strips is introduced. The system is able to detect surface defects on cold rolledstrips, such as scratches, coil breaks, rusts, roll imprints, and so on. Multiple CCD area scancameras were equipped to capture images of strip surface simultaneously. Defects were detectedthrough 'Dark-field illumination' which is generated by LED illuminators. Parallel computationtechnique and fast processing algorithms were developed for real-time data processing. Theapplication to the production line shows that the system is able to detect defects effectively.

关键词： surface inspection cold rolled strip finishing line CCD cameras imageprocessing

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煤层气地面开发项目经济评价

天然气工业 2011年第11期31卷 103-106,130-131页

作者：曹艳王秀芝中国石化石油勘探开发研究院

地面钻井是煤层气开发的主要方式之一,其开发周期、投资和成本费用等与常规天然气开发不同,并影响其经济效益。为了给煤层气开发利用及投资决策提供科学依据,以沁水盆地某煤层气开发区块为例,依据其目前的各项参数,利用现金流量法进行... 详细信息

地面钻井是煤层气开发的主要方式之一,其开发周期、投资和成本费用等与常规天然气开发不同,并影响其经济效益。为了给煤层气开发利用及投资决策提供科学依据,以沁水盆地某煤层气开发区块为例,依据其目前的各项参数,利用现金流量法进行了经济评价和影响因素敏感性分析。结果表明,影响项目盈利能力的主要因素有产量、投资、成本、产品销售价格和补贴。从敏感性分析可以看出,财务内部收益率对投资、气价和产量较为敏感,其次是成本、补贴。因此,为了提高煤层气开发项目的经济效益,需要进一步提高煤层气价格,更需要通过开发理论的创新和开发技术的进步来增加单井产量、降低投资和成本。此外,建议国家根据不同地区、不同企业的生产实际情况,给予生产企业诸如加大补贴力度等更多优惠政策。

关键词：煤层气地面开发项目经济评价现金流量法价格产量成本优惠政策

Geological analysis and physical modeling of structural pumping in high effective formation of Kela 2 gas field

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Science china Earth Sciences 2006年第10期49卷 1070-1078页

作者： ZHAO Wenzhi1, WANG Hongjun1, SHAN Jiazeng2, WANG Zecheng1 & XU Dafeng1 1. research institute of Petroleum exploration and Development, Petrochina, beijing 100083, china 2. institute of Geology and Geophysics, Chinese Academy of Sciences, beijing 100029, china 1. research institute of Petroleum exploration and Development Petrochina Beijing 100083 China 2. institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China

In a 3-D closed geological body, in case “structural expanding” inside is induced by stress, it can produce the pressure difference between the expanding cell and surrounding rock, then generate a pumping force directed toward the cell and accelerate the directional flow of fluid in the strata. The structural style and conditions of gas reservoir-formation in the Kuqa depression are favorable to the structural pumping. According to similarity principle, a physical modeling of structure formation and gas filling process of the Kela 2 gas field has justified the occurrence of structural pumping and its important role in gas-reservoir formation with high efficiency under the compressive and well-sealed circumstance. Therefore, authors propose that structural pumping is an important mechanism of gas reservoir-formation with high efficiency in the Kuqa depression.

关键词： Kela 2 gas field, structural pumping, gas-reservoir formation mechanism, high efficiency,physical modeling.