检索结果-南通市图书馆

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国地下储气库的需求与挑战

天然气工业 2011年第12期31卷 90-93,131页

作者：丁国生中国石油勘探开发研究院廊坊分院

建设地下储气库是保障安全平稳供气的主要手段之一。为此,介绍了国外地下储气库建设的主要特点和成功经验,并总结出了对中国建设地下储气库的3点启示:①地下储气库因其储气规模大、占地少、安全性能高、不污染环境等特点,成为当今世界... 详细信息

建设地下储气库是保障安全平稳供气的主要手段之一。为此,介绍了国外地下储气库建设的主要特点和成功经验,并总结出了对中国建设地下储气库的3点启示:①地下储气库因其储气规模大、占地少、安全性能高、不污染环境等特点,成为当今世界上最主要的天然气储存方式和调峰手段;②地下储气库工作气量应达到天然气年消费量的15%左右,才能有效保障调峰和安全平稳供气的需要;③有别于常规的气田开发,应根据地下储气库自身的特点进行建设和运行,并注重吸收国外的成熟技术和经验。同时对中国地下储气库的发展需求进行了分析,认为:虽然中国地下储气库建设起步较晚,但由于中国天然气消费需求量的不断增长、天然气消费结构的改变、调峰及天然气战略储备的要求、非常规天然气利用等诸多因素的共同作用,中国地下储气库的需求将快速增长,预计到2.2.年地下储气库工作气量需求将达到650×108 m3,2.30年将达到1 100×108 m3。还指出了中国储气调峰领域存在的瓶颈问题:①地下储气库建设滞后于天然气管道建设;②天然气管道和气田调峰手段弱,根本满足不了天然气下游市场的需要;③已经掌握的建库地质资源少,与未来建库需求存在较大的差距;④地下储气库的设计、建造技术与复杂的建库地质条件不相适应。最后探讨了中国地下储气库建设将面临的资源、技术以及管理方面的挑战。

关键词：中国地下储气库现状发展趋势需求技术瓶颈挑战

Formation mechanism of carbonate cemented zones adjacent to the top overpressured surface in the central Junggar Basin,NW china

在线全文

学校读者我要写书评

暂无评论

Science china Earth Sciences 2010年第4期53卷 529-540页

作者： YANG Zhi1,2,ZOU CaiNeng1,3,HE Sheng2,LI QiYan1,HE ZhiLiang3,WU HengZhi5,CAO Feng1,MENG XianLong4,WANG FuRong2 & XIAO Qilin21 State Key Laboratory of EOR,research institute of {2. exploration & development,Petrochina,Beijing 100083,china 2 Key Laboratory of Tectonics and {2. Resources of Ministry of Education,china University of Geosciences,Wuhan 430074,china 3 State Key Laboratory of EOR,research institute of {2. exploration & development,Petrochina,Beijing 100083,china 4 research institute of {2. exploration and Production,SINOPEC,Beijing 100083,china 5 Southwest {2.} Company,SINOPEC,Chengdu 610051,china State Key Laboratory of EOR Research Institute of Petroleum Exploration & Development PetroChina Beijing China Key Laboratory of Tectonics and petroleum Resources of Ministry of Education China University of Geosciences Wuhan China State Key Laboratory of EOR Research Institute of Petroleum Exploration & Development Petrochina Beijing China Southwest branch Company SINOPEC Chengdu China research institute of{2. exploration and Production SINOPEC Beijing China

Carbonate cemented zones are normally adjacent to the top overpressured surface in the central Junggar Basin,NW *** carbon and oxygen isotopic compositions and petrological investigations of carbonate cements in the carbonate cemented zones indicate that:(1) carbonate cements are composed dominantly of ferrocalcite,ferroan dolomite,and ankerite;(2. carbonate cements are formed under a high temperature circumstance in the subsurface,and organic fluid migration has an important effect on the formation of them;and(3) carbon and oxygen ions in the carbonate cements migrate from the underlying overpressured *** suggests that the occurrence of carbonate cemented zones in this region results from multiple phases of organic fluid expulsion out of the overpressure compartment through geological *** study provides a plausible mechanism of the formation of carbonate cemented zones adjacent to the top overpressured surface in the clastic sedimentary basins,and has an important implication for understanding the internal correlation between the formation of carbonate cemented zones adjacent to top overpressured surface and geofluids expulsion out of overpressured system.

关键词： carbonate cemented zones formation mechanism stable carbon and oxygen isotopic top overpressured surface central Junggar Basin coal-bearing strata

An analysis of seismic attenuation in random porous media

在线全文

学校读者我要写书评

暂无评论

Science china(Physics,Mechanics & Astronomy) 2010年第4期53卷 628-637页

作者： LIU Jiong1, BA Jing2. MA JianWei1 & YANG HuiZhu1 1 institute of Seismic exploration, School of Aerospace, Tsinghua University, Beijing 100084,{2. 2.research institute of petroleum exploration & development, Petrochina, Beijing 100083,{2. institute of Seismic exploration School of Aerospace Tsinghua University Beijing China research institute of{2. exploration & development PetroChina Beijing China

The attenuation of seismic wave in rocks has been one of the interesting research topics, but till now no poroelasticity models can thoroughly explain the strong attenuation of wave in rocks. In this paper, a random porous medium model is designed to study the law of wave propagation in complex rocks based on the theory of Biot poroelasticity and the general theory of stochastic process. This model sets the density of grain, porosity, permeability and modulus of frame as random parameters in space, and only one fluid infiltrates in rocks for the sake of better simulation effect in line with real rocks in earth strata. Numerical simulations are implemented. Two different inverse quality factors of fast P-wave are obtained by different methods to assess attenuation through records of virtual detectors in wave field (One is amplitude decay method in time domain and the other is spectral ratio method in frequency domain). Comparing the attenuation results of random porous medium with those of homogeneous porous medium, we conclude that the attenuation of seismic wave of homogeneous porous medium is far weaker than that of random porous medium. In random porous media, the higher heterogeneous level is, the stronger the attenuation becomes, and when heterogeneity σ = 0.15 in simulation, the attenuation result is consistent with that by actual observation. Since the central frequency (50 Hz) of source in numerical simulation is in earthquake band, the numerical results prove that heterogeneous porous structure is one of the important factors causing strong attenuation in real stratum at intermediate and low frequency.

关键词： the theory of stochastic process the theory of Biot poroelasticity the attenuation of seismic wave inverse quality factor

在线全文

学校读者我要写书评

暂无评论

煤层气解吸机理数值模拟研究

天然气工业 2005年第1期25卷 77-80页

作者：张冬丽王新海中国石化石油勘探开发研究院油藏所长江大学

针对不同饱和类型煤层的特点及临界解吸压力在地层压力上升、下降过程中的不同作用,建立了煤层气解吸过程的数学模型。模型能够反映气体解吸的真实情况。利用此数学模型,编制了计算程序,通过实例,计算分析了煤层气解吸的主要机理... 详细信息

针对不同饱和类型煤层的特点及临界解吸压力在地层压力上升、下降过程中的不同作用,建立了煤层气解吸过程的数学模型。模型能够反映气体解吸的真实情况。利用此数学模型,编制了计算程序,通过实例,计算分析了煤层气解吸的主要机理:超饱和煤层是游离气和气体解吸的累加作用;饱和、欠饱和煤层在开采过程中控制区域内两相区逐渐扩大;欠饱和煤层高于临界解吸压力的区域没有解吸,造成产量低下。

关键词：煤层气解吸机理数值模拟临界解吸压力地层压力

HK to Benefit from Imported LNG Project

在线全文

学校读者我要写书评

暂无评论

china Oil & Gas 2002年第3期9卷 53-54页

作者： Yao Jianjun(langfang branch of{2. exploration and development research institute ) langfang branch of{2. exploration and development research institute

Hong Kong is expected to buy one third of the mainland's US$ 10 billion worth of imported liquefied natural gas (LNG) to satisfy its growing energy demand, Mark Qiu, chief financial officer of CNOOC, said recently. He added Hong Kong will buy 1 million tons of LNG a year from the mainland's first LNG terminal in southern Guangdong Province to fuel the power plants and household consumption in the region.

关键词： LNG Project

Quantitative studies of hydrocarbon loss of the Silurian bitumen sandstone in the Tarim Basin

在线全文

学校读者我要写书评

暂无评论

Science china Earth Sciences 2008年第S2期51卷 101-107页

作者： JIANG ZhenXue1,2.PANG XiongQi1,2.LIU LuoFu1,2.WANG XianDong3,ZHANG Jun4 & LI HongYi1,2.1 Basin and Reservoir research Center,china University of{2.,Beijing 102.49,china 2.State Key Laboratory of{2. Resource and Prospecting,china University of{2.,Beijing 102.49,china 3 research institute of exploration and development,Daqing Oilfield Company Ltd,Daqing 163712.china 4{2. exploration and Production institute of SINOPEC,Beijing 100083,china Basin and Reservoir research Center China University of Petroleum Beijing China State Key Laboratory of petroleum Resource and Prospecting China University of Petroleum Beijing China research institute of{2. and development Daqing Oilfield Company Ltd Daqing China petroleum exploration and Production{2. of SINOPEC Beijing China

The evolution of Tarim Basin experienced several tectonic movements,of which Caledonian movement caused a serious damage to reservoirs of Silurian. The earlier reservoirs size and the later hydrocarbon loss are two key factors to exploration prospect of Silurian. On the basis of net thickness of bituminous sandstone and recovery coefficient of crude oil converting to bitumen,the scale of the hydrocarbon loss of palaeo-accumulation in bitumen sandstone of Silurian was calculated (86.30×108t). The deter-mination of net thickness of bitumen sandstone was completed mainly by several methods,such as physical property demarcation,observing lithology,grains with oil inclusion (GOI) technology,and quantitative grains fluorescence (QGF) technology. The samples of black sandstone and white sand-stone were collected and compared by means of the methods mentioned above. The results showed that there was little hydrocarbon,or none,in the white sandstone. The recovery coefficient was ob-tained by the analyses of plentiful physical parameters of crude oil and bitumen sandstone,based on the hypothesis that nonhydrocarbon compounds and bitumen were invariable in the process of bitu-men forming. The calculated result,which is more scientific and actual,indicates the exploration pros-pect is more promising in Silurian of the Tarim Basin.

关键词： Tarim Basin Silurian bitumen sandstone hydrocarbon loss quantitative research recovery coefficient

Seismic wave propagating in Kelvin-Voigt homogeneous visco-elastic media

在线全文

学校读者我要写书评

暂无评论

Science china Earth Sciences 2006年第2期49卷 147-153页

作者： YUAN Chunfang1, PENG Suping1, ZHANG Zhongjie2.& LIU Zhenkuan3 1. china University of Mining & Technology, Beijing 100083, china 2.{2. of Geophysics, Chinese Academy of Sciences, Beijing 100101, china 3. exploration and development research{2. of Daqing Oilfield, Daqing 163712. china china University of Mining & Technology Beijing China institute of Geophysics Chinese Academy of Sciences Beijing China exploration and development{2. institute of Daqing Oilfield Daqing China

This paper studies, under a small disturbance, the responses of seismic transient wave in the visco-elastic media and the analytic solution of the corresponding third-order partial differential equation. A plane wave solution of Kelvin-Voigt homogeneous visco-elastic third-order partial differ-ential equation with a pulse source is obtained. By the principle of pulse stacking of particle vibration, the result is extended to the solution of Kelvin-Voigt homogeneous visco-elastic third-order partial differential equation with any source. The velocities of seismic wave propagating and the attenuation of seismic wave in Kelvin-Voigt homogeneous visco-elastic media are discussed. The velocities of seismic wave propagating and the coefficient of attenuation of seismic wave in Kelvin-Voigt homogeneous visco-elastic media are derived, expressed as functions of density of the media, elastic modulus and visco-elastic coefficient. These results can be applied in inversing lithology parameters in geophysical prospecting.

关键词： Kelvin-Voigt visco-elastic velocity attenuation seismic wave.

Curve fitting and optimal interpolation on CNC machines based on quadratic B-splines

在线全文

学校读者我要写书评

暂无评论

Science china(Information Sciences) 2011年第7期54卷 1407-1418页

作者： ZHANG Mei 1,YAN Wei 2.YUAN ChunMing 1,WANG DingKang 1 & GAO XiaoShan 1 1 Key Laboratory of Mathematics Mechanization,Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100190,china 2.research{2. of petroleum exploration and development,Beijing 100083,china Key Laboratory of Mathematics Mechanization Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China research institute of{2. exploration and development Beijing China

In this paper,curve fitting of 3-D points generated by G01 codes and interpolation based on quadratic B-splines are *** points of G01 codes are selected using an adaptive ***,quadratic B-splines are obtained as the fitting curve by interpolating these feature *** required in implementing the velocity planning algorithm mentioned by Timer et *** very complicated because of the appearance of high-order *** improved time-optimal method for the quadratic B-spline curves is presented to circumvent this *** algorithms are verified with simulations as well as on real CNC machines.

关键词： quadratic B-spline G01 codes feature point velocity planning interpolation

Classification and origin of natural gases from Lishui Sag,the East china Sea Basin

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 2008年第S1期51卷 122-130页

作者： CHEN JianPing 1,2.,GE HePing 3 ,CHEN XiaoDong 3 ,DENG ChunPing 1,2.&LIANG DiGang 1,2.1 research institute of{2. exploration&development,Petrochina,Beijing 100083,china 2.Key Lab of{2. Geochemistry,CNPC,Beijing 100083,china 3 Shanghai Division,CNOOC,Shanghai 2.0030,china research institute of{2. exploration & development PetroChina Beijing China Key Lab of petroleum Geochemistry CNPC Beijing China Shanghai Division CNOOC Shanghai China

Natural gases discovered up to now in Lishui Sag,the East china Sea Basin,differ greatly in gaseous compositions,of which hydrocarbon gases amount to 2.―94%while non-hydrocarbon gases are dominated by *** hydrocarbon gases,without exception,contain less than 90%of methane and over 10%of C2.+ heavier hydrocarbons,indicating a wet *** isotopic analyses on these hydrocarbon gases showed thatδ13C 1 ,δ13C 2.andδ13C 3 are basically lighter than-44‰,-2.‰and-2.‰, *** difference in carbon isotopic values between methane and ethane is great,suggesting a biogenic oil-type gas produced by the mixed organic matter at peak generation.δ13C CO2.values of nonhydrocarbon gases are all heavier than-10‰,indicating a typical abiogenic *** simulation experiment on hydrocarbon generation of organic matter in a closed gold-tube system showed that the proportion of methane in natural gases produced by terrigenous organic matter in the Lingfeng Formation marine deposit is obviously higher than that in natural gases derived from the aquatic and terrigenous mixed organic matter in the Yueguifeng Formation lacustrine deposit,consequently the proportion of heavier hydrocarbons of the former is remarkably lower than that of the ***, δ13C 1 values of natural gases produced by terrigenous organic matter in the Lingfeng Formation marine deposit are about 5‰heavier than those of natural gases derived from the aquatic and terrigenous mixed organic matter in the Yueguifeng Formation lacustrine deposit whileδ13C 2.andδ13C 3 values of the former are over 9‰heavier than those of the *** the LS36-1 oil-gas pool is the only commercial oil-gas reservoir in Lishui Sag,where carbon isotopic compositions of various hydrocarbon components differ greatly from those of natural gases produced by the Lingfeng Formation organic matter but are very similar to those of natural gases derived from the Yueguifeng Formation organic matter,therefore,natural gases in the

关键词： Lishui Sag natural gas biogenesis abiogenesis lacustrine source rock marine source rock coal-measures source rock