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major source rock
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  “major source rock”译为未确定词的双语例句
     Distribution of Dibenzothiophenes in Crude Oils from Tarim Basin and Identification of Major Source Rock Types
     塔里木盆地原油中二苯并噻吩的分布及主力油源岩类型判识
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     Based on comprehensive study of source rock, geochemical characteristics of crude oil, correlation of oil and source and hydrocarbon migration pattern of the Eogene in Chexi sag, this paper draws seve-ral conclusions. Source rock in the lower-middle Es~3 (the third member of Shahejie formation of Eogene) which is buried 2 800-3 000 m below is the major source rock in Chexi sag.
     通过对车西洼陷下第三系烃源岩特征、原油地化特征及油源对比、油气运移规律的综合研究认为,现今埋深2 800~3 000 m以下的Es3 (下—中)烃源岩是车西洼陷主力烃源岩,埋深2 200 m以下的Es3(上)及Es1 烃源岩具有一定的低熟资源潜力;
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     There are a major source rock in coal measures of Eocene Pinghu Formation and a minor source rock in Oligocene and Miocene coal measures in the eastern depression belt.
     东部坳陷带以始新统平湖组煤系地层为主要烃源岩,渐新统和中新统煤系地层为次要烃源岩。
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     The main task of this article is analysing the major source rock's burial history of oil-gas-bearing basin in china and in other countries ,and researching different burial history type basin's reservoir characteristic,and relationship between the phase of reservoir formation and different burial history type basin.
     本文的重点任务是对国内外含油气盆地主力生油层系的埋藏史曲线进行分析,并研究不同类型埋藏史的盆地油气藏特征以及油气成藏期与埋藏史的关系。
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     The source rock correlation shows that Segment 1 of Nenjiang Member is the major source rock of Heidimiao Reservoir,and part of the oil originates from the formation below Yaojia Member.
     通过油源对比, 确定嫩江组一段是黑帝庙油层主要的烃源岩, 部分原油来自姚家组以下地层。
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     Cereal was the major energy source.
     谷物仍是三地调查对象的主要能量来源。
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     Discussion on Management of Major Dangerous Source
     关于重大危险源的管理
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     Major hydrocarbon source rocks are in the Cambrian and Ordovician.
     寒武-奥陶系烃源岩是该区主力烃源岩;
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     At the Source of the Yangtse
     在长江的源头
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     the major patterns;
     校本管理的主要模式;
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North Dongpu depression is a highly explored area,where seismic line density comes up to 0.5×0.5(km).Drilling proves this area to be prolific of oil.Dongpu depression is a fault basin in which Meso- zoic-Cenozoic sediments are dominant,the maximum thickness of Pa- leogene formation being 7,000m.This sediment series consists of two major sedimentary cycles,whose middle includes four kinds of salt lake facies;salt-gypsum facies,mudstone facies (sand<20%),sand stone facies and sand-conglomerate facies.The four...

North Dongpu depression is a highly explored area,where seismic line density comes up to 0.5×0.5(km).Drilling proves this area to be prolific of oil.Dongpu depression is a fault basin in which Meso- zoic-Cenozoic sediments are dominant,the maximum thickness of Pa- leogene formation being 7,000m.This sediment series consists of two major sedimentary cycles,whose middle includes four kinds of salt lake facies;salt-gypsum facies,mudstone facies (sand<20%),sand stone facies and sand-conglomerate facies.The four salt lake facies horizons form major source rock and reservoir system;therefore,it is signifi- cant to ascertain their distributions.The distributions of these lake facies horizons can be ascertained by integrative analysis of specially processed seismic data and drilling data.Rock salt was formed in very high sedimentary speed;therefore,its sedimentary context only occurs in active structural enviroment.There was such structural condition in Dongpu depression.In main subdepression where source rock was prolific,the sedimentary speed could come up to 0.26mm/a.Salt-an- hydrite beds were controlled by second order faulting,and they distribute in downthrow blocks of second order faults.All the four kinds of salt lake facies distribute in ringlike zones.From basin margin to the center, the facies sequence is sand-conglomerate facies,sandstone facies,mud stone facies and salt-gypsum facies,that is to say,sediment changes from elastic deposit to chemical deposit.

东濮凹陷北部为一勘探程度较高6号地区,地震测网密度已达0.5×0.5(km)。钻探已经表明本区为油气富集区。东濮凹陷是一个以中、新生代沉积为主的断陷盆地,下第三系地层最大沉积厚度可达7,000m。这套地层自下而上表现为两大沉积旋回,在这两次旋回的中期发育了四套盐湖相沉积,即盐膏相,偏泥相、偏砂相和砂砾相,它们构成本区主要生油层系和重要的储集层系。因此查清这四套沉积相的分布是有重要价值的。利用各种特殊处理的地震信息与岩相的关系,并依据钻井资料对岩相加以标定,可以预测这四套盐湖沉积相的分布。由于岩盐的沉积速率很高,通常只在活动性的构造条件下才适应这种沉积环境。东濮凹陷完全具备这种构造条件。本区主要生油次凹的沉积速率可高达0.26mm/a。本区各成盐岩期的盐膏岩受二级断层活动的控制,都分布在二级断层的下降盘。四套盐湖相的沉积规律相同,相带均呈环带状。由湖盆边缘至沉积中心,岩性由粗变细,岩相由砂砾相→偏砂相→偏泥相→盐膏相,即由碎屑岩沉积序列变到化学沉积。

The Triassic system of the Tarim Basin mainly consists of the coal-bearing clastic rocks of fluvial-lacustrine facies,intercalated with pan-marine carbonates, sands and mud-stones;the thickness of the system ranges 500-1900m, and the distributing area reaches to about 30×104km2. In the system the source rocks mainly developed in deep-shallow lake subfacies, delta facies and pan-marine facies, lithologically it is characterized by dark mud, shales, carbonaceous mudstones intercalated with grey carbonate rocks,...

The Triassic system of the Tarim Basin mainly consists of the coal-bearing clastic rocks of fluvial-lacustrine facies,intercalated with pan-marine carbonates, sands and mud-stones;the thickness of the system ranges 500-1900m, and the distributing area reaches to about 30×104km2. In the system the source rocks mainly developed in deep-shallow lake subfacies, delta facies and pan-marine facies, lithologically it is characterized by dark mud, shales, carbonaceous mudstones intercalated with grey carbonate rocks, coals and oil shales. The accumulated thickness is up to 200-800m. The Majiar and Tangguzibasi depressions in the basin are the two major source rock areas totalling to about 13 × 104km2. The organics are predominately attributed to types Ⅱ B~ Ⅱ ,then to types Ⅱ ~ Ⅰ, with the R° values ranging 0. 6~1. 2%, therefore, they have a good hydrocarbon potential.

塔里木盆地三叠系以河、湖相含煤碎屑岩为主,夹有海泛相碳酸盐岩及砂、泥岩,厚500~1900m,分布面积约34×10~4km~2。烃源岩主要发育于深、浅湖亚相、三角洲相及海泛相,岩性以暗色泥、页岩、炭质泥岩为主,夹灰色碳酸盐岩、煤层及油页岩,累计厚200~800m。满加尔拗陷带及唐古孜巴斯拗陷带是盆内两大烃源岩分布区,面积约13×10~4km~2。有机质类型以ⅡB~Ⅲ型为主,次为ⅡA~Ⅰ型。R°为0.6~1.2%。具有良好的生烃潜力。 近年来塔东北地区已在三叠系连续获得重大油气突破,塔里木盆地三叠系具有广阔的油气前景。

For developing the achivement of exploration in Songnan area, we made a 2D basin simulation at Section A of H Depression which is the most prolific region. Much of the information about geohistory, thermal history, hydrocarbon generation, migration and accumulation history in respect of the H depression is derived. By the backstripping process, the subsidence history and the tectonic history are predicted from inverting observations today in a well explored basin. As a result of the thermal history analyses,...

For developing the achivement of exploration in Songnan area, we made a 2D basin simulation at Section A of H Depression which is the most prolific region. Much of the information about geohistory, thermal history, hydrocarbon generation, migration and accumulation history in respect of the H depression is derived. By the backstripping process, the subsidence history and the tectonic history are predicted from inverting observations today in a well explored basin. As a result of the thermal history analyses, we understand that there was a tectonic activity which accompanied by fault and high-heat now from early time in this area, and an environment which promoted to change organic substance into hydrocarbon. The study of the history of hydrocarbon generation and migration is based on the analysis of Shahezi Formation. We concluded that Shahezi Formation was a major source rock and Yincheng Formation was the second in the arca. The direction of oil migration was towards a smaller value of water pressure and the center of enclosed zone in the depression. There were suitable facies and seal condition for oil accumulating.

为了在松南地区扩大油气勘查成果,我们对勘探重点的H凹陷A剖面进行了二维盆地模拟。得到了H凹陷的地史、热史、生烃史、排烃运移史资料。在地史研究中,从已知盆地出发,采用了回剥技术,由今溯古重建了凹陷的沉积史和构造史。在此基础上进行了热史分析,得到了H凹陷在早期发生断裂活动,并伴有高热流值,形成了有利于有机物向石油烃转化的环境。生烃史和排烃运移史的研究主要对沙河子组地层进行。研究结果表明沙河子组是凹陷中的主要生油气层,营城组次之。油气向超水头值小的方向运移,凹陷中心环带是油气运移的指向地区。这些地区有良好岩相体系和封闭条件的部位是油气聚集的有利场所。

 
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