最新刊期
卷 17 ， 期 3 ， 1996
- 摘要：Natural gas resources are widespread in terrestrial basins of China.Large or middle size gas fields have been found in southeast sea areas.The terrestrial gas can be divided into five genetic types: biogenetic-thermal overprint gas, near-sapropelic pyrolysis gas, near-humic pyrolysis gas and biological degradation gas.Gas rich depressions include five types: continuously deep buried, pulsative deep buried, continuously mid-deep buried, early slow and late rapid mid-deep buried and continued shallow buried types.Gas richest places are faultedanticline zones within the depressions.They are mostly distributed along paleouplifts, inherited structures or neighbouring places around source-rock sags.Two most advantageous domains of terrestrial gas enrichment are high geotemperature or rich coal measure regions in mid-deep depth and favourible environment for microorganism at middle-shallow depth.关键词：中国;陆相盆地;天然气成因;富气凹陷;分布规律591|973|0更新时间：2023-05-30
- 摘要：The key of high resolution isochronostratigraphic correlation is to identify multi-order stratigraphic cycles that represent multi-order base-level cycles in stratigraphic record.There bound to exist certain marks recording the time that corresponding order base-level cycle experienced in each stratigraphic cycle.The sedimentary and stratigraphic characteristics of stratigraphic cycles are: 1.vertical variation in single-phase physical properties; 2.variation in factes sequences and factes assemblage; 3.changes in cyclic stacking pattern; 4.stratigraphic geometry and contact relation.These characteristics reflect the variation of the ratio between containing space and sediment alimentation.Outcrop profile and well profile have higher resolution, and could be used to identify short term base-level cycles; well log could be used to identify mid-term base-level cycles; seismic profile could only by used to identify mid to long term base-level cycles due to the limitation of its resolution.The turnround point of base-level cycle would be selected as optimum position of high resolution isochronostratigraphic correlation.Time-space diagram is very effective on time-space inversion of stratigraphic profile and on checking the reliability of stratigraphic correlation.It has been proved by practice that the techniques could also be used in nonmarine strata.关键词：层序地层;基准面旋回;识别;对比技术;等时对比;应用529|744|0更新时间：2023-05-30
- 摘要：The girdle distribution of hydrocarbon in Dongying Depression bears close inherent relation with the properties and strenghs of the fields of paleobiology, paleogeotherm, paleostressand paleofluid potential.The girdle distribution of oil and gas puts forward the "field-girdle corresponding theory".Paleobiology field determines the character and abundance of deposited organic matter; paleogeothermal field provides the energy with which organic matter could be transformed into hydrocarbon; paleofluid potential and paleostress fields offer power and space for hydrocarbon migration and preservation.Therefore, the ring-type distribution of the above mentioned four fields has controlled the girdle distribution of oil and gas.Seeking for oil and gas enriched zone around the high potential belts of the four fields is of guiding importance in hydrocarbon exploration.关键词：东营凹陷;油气环带;场环;对应理论538|794|0更新时间：2023-05-30
- 摘要：The stress field of the bottom of the First Member of the Shahejie Formation in the central part of Huanghua Depression in Bobai Bay Basin was analyzed by applying finite element computer simulation.According to its distribution characteristics, its property and the relation between the stress field and gas enrichment, it is suggested that the environment of weak extension and strong shearing stress is favourable for natural gas accumulation.It has been proved that bigger gas fields in the Bobai Bay Basin are almost associated with compressoshear stress environment.The main cause for this is that the environment is beneficial for natural gas generation and expulsion, and it is also favorable to form good sealing traps.关键词：渤海湾盆地;黄骅坳陷中区;应力场;天然气富集;有限元法580|495|0更新时间：2023-05-30
- 摘要：Based on small holes and caves developed in Lower Paleozoic carbonate reservoirs in Shaan-Gan-Ning Basin, two methods such as synthetic index method and acoustic time difference anomaly method were established using well log data so as to forecast oil and gas productivity.The synthetic index method is the product of resistivity and acoustical ways, which could be the synthetic reflection of oil volum in the reservoirs.According to the differences of synthetic indices, the productivity of the reservoirs in the basin could be divided into five productivity areas, and the coincidence rate is more than 75%.The acoustic time difference anomaly could be fine indicator of hydrocarbon abundance of underlying reservoirs.The more the acoustic wave curve deviates from compaction curve, the higher the productivity would be.The study area thus could be divided into four productivity zones, and the coincidence rate is greater than 70%.关键词：陕甘宁盆地;碳酸盐岩;产能;综合指数;欠压实异常;预测490|580|0更新时间：2023-05-30
- 摘要：High resolution technique in seismic exploration is a systematic engineering.In high resolution seismic exploration made in Ih Ju League, spectrum shaping, high frequency promotion and compesation, high sample rate methods were adopted to preserve high frequency signals; in seismic processing, pre-stack precise static correction, noise eliminating and poststack wavelet processing were used to improve signal/noise ratio, heighten master frequency and widen spectra.This technique has been proved to be effective especially in: 1.improving lamina resolution acuity; 2.increasing profile displaying ability; 3.improving the accuracy of structure interpretation.关键词：伊克昭盟;地震勘探;高分辨率;频谱整形;高频补偿;静校正;子波处理;应用效果606|462|0更新时间：2023-05-30
- 摘要：According to the properties of China's natural gas pools, single-factor classification and indices including trap, reservoir, expulsion, phase state, component, pressure and economy were studied.Based on the study, ternary structural combination and 9 naming principles were proposed in this paper.The gas pools could be classified into 5 types such as normal, condensate, acidic, high-pressure, special benefit pools and 25 sub-types.关键词：气藏;分类;三元结构;组合方式1082|971|0更新时间：2023-05-30
- 摘要：Weng's Life Cycle" is suitable for the description and prediction of the finite system of life amount, and its curve coincides to the increase curve of China's proved natural gas reserves."Weng's Cycle"could be used to describe and predict oil and gas reserves.As oil and gas are non-regenerated resources, the results indicates that the peak period of gas reserve increase will be 2011～2024 A.D., and the fina amount of proved gas resources will be 11.5 ×1012～23.0 × 1012m3.关键词：翁氏族回;预测;天然气;探明储量583|889|0更新时间：2023-05-30
- 摘要：According to statistic data, China's coal-bed gas resources are 30×1012～35×1012m3.Excepting the loss resulted from buried depth, metamorphism, gas weathering zones and coalfield structures, the actural recoverable coal-bed gas resources are only 10 ×1012m3.Based on the process of American coal-bed gas exploration, it is predicted that China's coal-bed gas production would be 0.43 ×108～0.65 × 108m3 in 2000 A.D., it will be 20 ×108m3 in 2000～2010 A.D., 100×108m3 in 2020 and in the year of 2050 A.D.., the production will be 2050 ×108m3.关键词：煤层气;资源量;产量;开发前景582|703|0更新时间：2023-05-30
- 摘要：Majiatan thrust belt in the west margin of Ordos Basin is a typical detachment thrust belt.The main detachment beds are Carboniferous coal measures and the boundary plane between basement and sedimentary cover in the area.The genetic types of the thrusts are floor thrust, branch thrust, recoil fault and cross fault.The fold types of the thrust belt include fault-extended fold and fault-slided fold.The thrust belt contains recoil, recoil-cut and branch types of frontal structures and two structural transformation forms such as thrust to thrust and thrust to fold.The south end of the thrust front is favourable for oil and gas exploration.关键词：鄂尔多斯;马家滩;冲断构造;滑脱层;反冲断层576|497|0更新时间：2023-05-30
- 摘要：Shallow gas is specialized to various natural gas resources buried shallower than 1 500 m, including biogas, oil gas, coal-formed gas, water soluble gas and etc..China's natural gas resources are primarily distributed in south China coastal regions, small Meso-Cenozoic basins, hydrocarbon-bearing basins in East and West China and major coal basins.Gas pools could be divided into three kinds: 1.super-shallow primary micro-pools; 2.proximal shallow small pools; 3.shallow conventional pools.The exploration of shallow gas is characterized by lower pressure, small production, simple technique and less investment.关键词：浅层天然气;资源分布;气藏类型;开发前景601|901|0更新时间：2023-05-30
- 摘要：The distribution characteristics of China's on-land natural gas resources were analysed based on the distribution locality, stratum, origin, buried depth, geography and unproved resources of natural gas.It is considered that the on-land gas resources are mainly distributed in Central and West China (about 40% and 36% respectively).Natural gas reservoirs are primarily in Carboniferous, Ordovician, Permian, Triassic and Tertiary systems.Within the natural gas resources, oil-gas in up to 70% of the total amount, and coal-gas is 29%.Natural gas is buried mostly deeper than 2 000 m, and 80.98% of it is under thick loess domes, hills and desert areas.The gas resources could be divided into 3 types based on their geological and exploration conditions.Among them, type-Ⅰ is basically distributed in the central depressions of Songliao Basin, Tertiary sediments of hydrocarbon-rich depressions in Bobai Bay Basin, the central and east of Sichuan and Ordos Basins, Ih Ju League, Tarim, Junggar, Turpan-Hami and Qaidam Basins in West China.关键词：陆上;天然气;资源量;分布特征;分类;评价661|592|0更新时间：2023-05-30
- 摘要：China's condensate gas pools are mainly distributed in Bobal Bay, Tarim, Turpan-Hami Basins, the East and South China coastal regions.The total reserve of the condensate gas is about 4 000 ×108 m3, which is one third of total natural gas reserve.The gas pools are primarily formed from terrigenous parent materials and coal, the pools formed from lacustrine or marine sapropelic hydrocarbon-forming systems are seldom.The internal factor of condensate gas pool enrichment is humic or near humic source rocks.Excepting geological conditions needed by conventional gas pools, the condensate gas pools need temperature ranging from 70℃ to 130℃ , and pressure of 30～60 MPa.According to synthetic analysis, the target areas of condensate gas exploration should be Tarim, Turpan and Hami Basins in Xinjiang, the rift systems in Northeast China and inner Mongolia, the rift basins in the East China, the South China, the East China and Bobal Bay regions.关键词：凝析气藏;成烃体系;富集条件;勘探方向881|934|0更新时间：2023-05-30
- 摘要：Upper Triassic clasolite reservoirs in West Sichuan are a set of tight sand-mud rocks with low porosity-low permeability, high aqueous saturation and abnormal high pressure.According to their fluid pressures and gas reserves, the reservoirs could be divided into superhigh pressure-low reserve type (Ⅰ), high pressure-high reserve type (Ⅱ) and normal to transitional pressure-high reserve type(Ⅲ).The formation and evolution of paleopressure controlled the formation of gas reservoirs.Successive pressure increase caused by gas generation and compression resulted in superhigh pressure-low reserve type reservoirs (Ⅰ) ; long-term pressure increase resulted in long distance gas migration and trap area enlargement, and thus forming high pressure-high reserve type reservoirs (Ⅱ); the development of structural fractures and high-pressure enlarged fractures, the early-stage enrichment and late-stage reformation of the reservoirs should be the basic formation model of normal to transitional pressure-high reserve type reservoirs(Ⅲ).关键词：上三叠统;致密碎屑岩;异常地层压力;天然气成藏;控制作用597|710|0更新时间：2023-05-30
- 摘要：石油与天然气是重要的矿产资源,在国民经济建设中发挥着越来越重要的作用。近年来,国家每年对石油与天然气的基础地质研究及勘探开发投入大量人力和物力;相应有关石油与天然气的科技文献和刊载其研究成果的期刊也迅速增长。本文利用文献计量学方法[1]对石油与天然气文献进行统计,并确定出该学科领域的核心期刊,试图为图书情报部门精选期刊以及科技人员更好利用专业期刊文献提供信息.581|597|0更新时间：2023-05-30
- 摘要：石油勘探开发科学研究院廊坊分院天然气所经过数年刻苦攻关,研制出天然气层测井解释新技术—LOGES油气评价系统。该系统设计思路新颖,技术先进,应用效果显著。611|414|0更新时间：2023-05-30
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