检索结果-南通市图书馆

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

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

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

Numerical simulation and application of three-dimensional oil resources migration-accumulation of fluid dynamics in porous media

在线全文

学校读者我要写书评

暂无评论

Science china(Physics,Mechanics & Astronomy) 2008年第8期51卷 1144-1163页

作者： YUAN YiRang1 & HAN YuJi2 1 institute of Mathematics,Shandong University,Ji’nan 250100,china 2 Physical exploration institute of Shengli petroleum Administration,Dongying 257022,china institute of Mathematics Shandong University Ji’nan 250100 China Physical exploration institute of Shengli petroleum Administration Dongying 257022 China

Numerical simulation of oil migration and accumulation is to describe the history of oil migration and accumulation in basin evolution. It is of great value in evaluation of oil resources and determination of the location and amount of oil deposits. Based on such actual conditions as the effects of fluid mechanics in porous media and 3-dimensional geology characteristics,a kind of modified method of second order upwind finite difference fractional steps implicit interactive scheme was put forward. As for the actual problem of Dongying hollow,Huimin hollow,Tanhai region and Yangxin hollow in Shengli petroleum Oil Field,a numerical simulation test was carried out,and the result is basically coincident with the actual conditions. For the model problem,optimal order estimates were derived. Thus the well-known problem on oil resources was solved.

关键词： nonlinear mechanics of immiscible flow 3-dimensional migration-accumulation of oil resources upwind fractional steps numerical simulation numerical analysis

Abnormal high pressure in Kuqa foreland thrust belt of Tarim basin: Origin and impacts on hydrocarbon accumulation

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2006年第12期16卷 1307-1314页

作者： ZENG Lianbo~1** and LIU Benming~ 1,2 (1. Key Laboratory of Hydrocarbon Accumulation in china petroleum University, Ministry of Education, beijing 102249, china 2. The institute of Oil and Gas exploration and Development, Tarim Oilfield Company, Petrochina Company Limited, Korla 841000, china) [a]Ministry of Education Key Laboratory of Hydrocarbon Accumulation in China Petroleum University Beijing China [b]The institute of Oil and Gas exploration and Development Tarim Oilfield Company PetroChina Company Limited Korla China

Following analyses of the abnormal high pressure distribution characteristics, based on the geological characteristics, tectonic stress field and physical simulation, we investigated the formation mechanisms of abnormal high pressure and its impacts on hydrocarbon accumulation in the Kuqa foreland thrust belt. The abnormal high pressure appears at the bottom of the Paleogene and obviously exists in the Triassic and Jurassic. However, the pressure coefficient in the Triassic and Jurassic is lower than that in the Cretaceous and at the bottom of the Paleogene. Horizontally, the abnormal high pressure distribution is characterized by E-W orientation zoning. The maximum pressure coefficient lies in the Kelasu-Dongqiu-Dina tectonic zones in the center of the Kuqa foreland thrust belt and decreases away from the tectonic zones. The formation of abnormal high pressure was mainly related with the intense tectonic compression in the Early Pleistocene time, and tectonic uplifting, undercompaction and hydrocarbon generation were secondary factors contributing to abnormal high pressure. Under the rapid and intense tectonic compression in the Early Pleistocene, the rock framework firstly undertook 1/4 of the compression stress and the other was borne by the pore fluids. Due to the presence of great seal of gypsum-salt or gypsum-mudstone beds in the Paleogene, the pressure of pore fluids increased rapidly and led to the abnormal high pressure in the Kuqa foreland thrust belt. The abnormal high pressure has important impacts on hydrocarbon accumulation. It is one of the necessary conditions for formation of large oil and gas fields in the Kuqa foreland thrust belt.

关键词： abnormal high pressure formation mechanism oil and gas reservoir Kuqa foreland thrust belt Tarim basin.

Two conceptual models of displacement transfer and examples

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science china Earth Sciences 2005年第7期48卷 900-911页

作者： GUAN Shuwei1,2, WANG Xin2, YANG Shufeng2, HE Dengfa1 & ZHAO Weidong3 1. Research institute of petroleum exploration and Development, beijing 100083, china 2. Department of Geosciences, Zhejiang University, Hangzhou 310027, china 3. Tarim Oilfield Company, Korla 841000, china Research institute of petroleum exploration and Development Beijing 100083 China Department of Geosciences Zhejiang University Hangzhou 310027 China Tarim Oilfield Company Korla 841000 China

This paper presents two conceptual models of displacement transfer, reverse sym- metry model and infinitely equal division model, based on the fault-bend folding theory. If the fault shape is held constant in the trend, then the distribution of slip magnitude, geometry of imbricate structures and its axial surface map all display reverse symmetry on the process of displacement transfer, as called reverse symmetry model in this paper. However, if the ramp height of thrust fault decreases gradually along its strike, the displacement is postulated to be equally and infinitely divided to every thrust that is formed subsequently, this kinematic process is described using infinitely equal division model. In both models, displacement transfer is characterized by the regular changes of imbricate thrusting in the trend. Geometric analysis indicates that the displacement transfer grads can be estimated using the tangent of deflective angle of hinterland structures. Displacement transfer is often responsible for the distortion and branching of the surface anticlines, especially in the region where the multi-level detachment structures is developed. We also present some examples from the frontal structures of the Southern Tianshan fold-and-thrust belt, Xinjiang, china. Displacement transfer between deep imbricate thrusts in the middle segment of Qiulitag anticline zone causes the Kuqatawu and Southern Qiulitag deep an- ticlines left-lateral echelon. The region, where these two deep anticlines overlap, is characterized by duplex structures, and extends about 18 km. The shallow anticline is migrated southward displaying obvious “S” form in this area.

关键词： displacement transfer fault-bend folding reverse symmetry model infinitely equal division model Qiulitag zone.

THEORETICAL RESEARCH ON THE CONTACT PROBLEM OF THE ROLLER BEARING IN ROCK-BITS

在线全文

学校读者我要写书评

暂无评论

THEORETICAL RESEARCH ON THE CONTACT PROBLEM OF THE ROLLER BE...

Petrophysical and capillary pressure properties of the upper Triassic Xujiahe Formation tight gas sandstones in western Sichuan,china

第二届中日国际机械零件会议

作者： Wang Fangfei (Research institute of petroleum exploration & Development beijing china 100083) Luo Wei (University of petroleum beijing china 102200)

＜正＞The theoretical research on the contact problem for roller bearing in rock-bits is presented by using the numerical method of three dimension non-Hertzian elastic contact *** calculated results reveal that the early fatigue of bearing is due to the singularity of contact pressure towards the ends of roller with straight line profile.

关键词： Rock bit Roller bearing Contact problem

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

petroleum Science 2011年第1期8卷 34-42页

作者： Ye Sujuan Lu Zhengxiang Li Rong exploration and production Research institute Sinopec Southwest CompanySichuan 610081China Chengdu institute of Geology and Mineral Resources Sichuan 610081China

The tight sandstones of the Upper Triassic Xujiahe Formation（T_3x） constitute important gas reservoirs in western *** Xujiahe sandstones are characterized by low to very low porosity （av.5.22%and 3.62%） for the T_3x^4 and T_3x^2 sandstones,respectively）,extremely low permeability（av. 0.060 mD and 0.058 mD for the T_3x^4 and T_3x^2 sandstones,respectively）,strong heterogeneity,micronano pore throat,and poor pore throat *** a result of complex pore structure and the occurrence of fractures,weak correlations exist between petrophysical properties and pore throat size,demonstrating that porosity or pore throat size alone does not serve as a good permeability *** improved correlations can be obtained between permeability and porosity when pore throat radii are incorporated. Correlations between porosity,permeability,and pore throat radii corresponding to different saturations of mercury were established,showing that the pore throat radius at 20%mercury saturation（R_（20）） is the best permeability *** regression analysis and artificial neural network（ANN） methods were used to establish permeability prediction models and the unique characteristics of neural networks enable them to be more successful in predicting permeability than the multivariate regression *** addition, four petrophysical rock types can be identified based on the distributions of R_（20）,each exhibiting distinct petrophysical properties and corresponding to different flow units.

关键词： Western Sichuan upper Triassic Xujiahe Formation tight sandstones permeability porosity pore throat radius regression analysis artificial neural network

在线全文

学校读者我要写书评

暂无评论

给定井眼方向的修正轨道设计方法

石油学报 2002年第2期23卷 74-76页

作者：刘修善石在虹中国石化勘探开发研究院北京100083 中国科学院力学研究所北京100080

在定向钻进过程中 ,井眼方向及其变化规律是井眼轨道监测与控制的关键参数。修正轨道设计作为井眼轨道监控的重要组成部分 ,对修正设计目标点的井眼方向往往有一定的要求。根据定向钻井工艺技术的特点 ,本文构造出了具有两个圆弧段和一... 详细信息

在定向钻进过程中 ,井眼方向及其变化规律是井眼轨道监测与控制的关键参数。修正轨道设计作为井眼轨道监控的重要组成部分 ,对修正设计目标点的井眼方向往往有一定的要求。根据定向钻井工艺技术的特点 ,本文构造出了具有两个圆弧段和一个直线段的三段式剖面 ,从而解决了给定井眼方向条件下的修正轨道设计问题 ,为井眼轨道的有效监控奠定了基础。本文的设计方法避开了求解约束方程组 ,使得求解过程是一致收敛的 ,并且所有计算公式在理论上都是精确解 ,因此其普适性、精确性、稳定性和收敛性得到了保证 ,可广泛应用于定向井、水平井、大位移井、多目标井的修正轨道设计。

关键词：石油钻井理论数学模型井眼轨道设计计算定向井水平井大位移井多目标井

川西坳陷异常高压形成机理与天然气分布关系研究

在线全文

学校读者我要写书评

暂无评论

天然气工业 2004年第3期24卷 5-8页

作者：汪时成张金川贾庆素北京石油大学北京中国地质大学中石化勘探开发研究院

对川西坳陷异常地层压力的研究一直存在不同观点 ,本文认为 ,高异常地层压力的形成机理具有 3种基本类型 ,即单相流的异常地层压力 (时间变化的函数 )、常规圈闭条件下两相流的异常地层压力 (与时间变化无关但其分布具有局限性 )以及致... 详细信息

对川西坳陷异常地层压力的研究一直存在不同观点 ,本文认为 ,高异常地层压力的形成机理具有 3种基本类型 ,即单相流的异常地层压力 (时间变化的函数 )、常规圈闭条件下两相流的异常地层压力 (与时间变化无关但其分布具有局限性 )以及致密储层条件下两相流的异常地层压力 (与时间因素无关且表现为区域性特点 )。川西坳陷三叠系和侏罗系地层严重致密化 ,生烃过程对地层增压作用具有重要影响 ,现今异常地层压力的形成主要取决于流体在储层孔隙中的流动方式以及由此所产生的能量交换 ,取决于致密储层条件对已形成高异常地层压力的封闭保存过程 ,因此川西坳陷现今异常地层压力的形成在原始动力类型上具有多因素复合性 ,研究表明 ,异常地层压力分布与天然气聚集之间具有复杂关系。

关键词：异常地层压力高压成因机理天然气分布川西坳陷地层压力分布

在线全文

学校读者我要写书评

暂无评论

对中国天然气可采资源量的讨论

天然气工业 2002年第6期22卷 6-9页

作者：张抗中国石化股份公司石油勘探开发研究院

我国的油气资源量的实际含义与国际通用的概念有很大的差别 ,这就容易造成混乱和误导。为此 ,特把我国的资源量称为地质资源量 ,在对其进行经济有效性校正和预测采收率的校正后之所得称为可采资源量 ,后者大致可与国际上的资源量相对比... 详细信息

我国的油气资源量的实际含义与国际通用的概念有很大的差别 ,这就容易造成混乱和误导。为此 ,特把我国的资源量称为地质资源量 ,在对其进行经济有效性校正和预测采收率的校正后之所得称为可采资源量 ,后者大致可与国际上的资源量相对比。笔者按 2 0 0 0年的探明储量和天然气地质资源量 47 32× 10 12 m3 ,计算其可采资源量为 11 4 42× 10 12 m3 。将不同专家不同时期的 15个对可采资源量的测算值平均 ,其值为 9 6 6× 10 12 m3 。按笔者的计算天然气的资源探明程度为 18%,气可采资源量的当量值略低于石油。

关键词：中国天然气可采资源量地质资源量