原生油气藏
- 网络primary oil-gas pools;primary petroleum accumulation
![原生油气藏](../cache/1344885.jpg)
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深部原生油气藏未遭到破坏保存极好;
Deep primary reservoir is preserved well without being destroyed ;
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华北区古生界原生油气藏勘探前景
Exploration prospect of Paleozoic primary oil and gas pools in Huabei area
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晚期的构造事件使原生油气藏遭受破坏,形成高阻水层。
Later structural events destroy original petroleum accumulation forming high resistance water .
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华北油田外围新区古生界、中上元古界原生油气藏勘探
Exploration for paleozoic , middle-upper Proterozoic primary reservoir in new areas of Huabei Oilfield
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黄骅坳陷下古生界海相碳酸盐岩原生油气藏剖析陕北石油秩序
An analysis on primary oil-gas accumulation in lower Palaeozoic Marine Carbonate Rocks in Huanghua Depression
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深层原生油气藏勘探还存在较大油气资源潜力。
The exploration from the deeper primary hydrocarbon reservoir still exists relative large resource potential .
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晚期形成于燕山运动主幕以后,属原生油气藏。
The later hydrocarbon reservoirs were oil and gas ones originally , which formed after the main episode of Yanshanian orogeny .
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沉积环境控制了源岩和储层的发育特征、油气分布层位及原生油气藏的形成。
Depositional environment controls the growing characters of source rocks and reservoirs , hydrocarbon occurrence layers , and the formation of primary hydrocarbon .
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此外,在中、新生代断陷与上古生界煤系发育的有利区内,有古生界原生油气藏保存。
In addition , Paleozoic primary reservoirs are preserved in prospective areas of Mesozoic and Cenozoic rift depressions and Upper Paleozoic coal measure .
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而后期的强烈剥蚀使得早期的原生油气藏遭到破坏,同时又导致了浅层次生油气藏的形成。
Nevertheless , late strong erosion could destroy primary oil-gas reservoirs and lead to the formation of secondary oil-gas reservoirs in shallow layers .
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入字型构造与油气自生自储自盖构造原生油气藏成藏模式;
ON THE RELATION OF λ - TYPE STRUCTURE TO OIL AND GAS MIGRATION AND ACCUMULATION self source-reservoir-capping structural original oil and gas reservoir ;
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早期断层活动时期早于生烃期,不是油气垂向运移通道,因此在源岩层系内可以形成早期原生油气藏,并且保存条件好;
Early-faults aren 't migration for oil and gas , so early primary oil and gas accumulation formed in source rocks with better preservation .
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东营凹陷的复杂断块油气田是深层原生油气藏被断层破坏后,油气经二次或多次运移至浅层的断层伴生圈闭而形成的次生油气藏。
The complicated fault-block reservoirs in Dongying Depression are the secondary trap deposits which had been migrated from deep to shallow after original reserves broken down .
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通过资料调研和野外地质调查,表明研究区中新元古界存在着形成原生油气藏的有利地质条件:沉积岩体积巨大,部分地层富含有机质,且演化程度较高;
The data systematical analysis and field geological investigation support occurrence of favorable geological conditions for the formation of primary reservoirs in the Mid-late Proterozoic strata in the study area .
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华北油田勘探实践表明,资源落实和四史配置研究已成为发展海相原生油气藏勘探的关键。
The exploration practice in the Huabei Oilfield indicates that the co-study on resource ascertainment and " four histories " become a key link for developing exploration for marine primary reservoirs .
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柴达木盆地北缘地区油气藏均为上新世晚期开始形成的原生油气藏,区内侏罗系油藏研究及油气资源评价应结合上覆地层的构造演化进行。
Before that there was no tectonization but subsidence . The oil reservoirs found in the northern area of the Qaidam Basin are original and was formed after the middle of Pliocene .
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讨论了古近系原生油气藏、上古生界煤系烃源岩二次生烃的油气藏、下古生界原生油气藏的成藏机制。
The author discusses the mechanism of hydrocarbon migration and accumulation of the Paleogene primary reservoirs , the upper Paleozoic secondary hydrocarbon-generating reservoirs of coal-related source rocks and the lower Paleozoic primary reservoirs .
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构造运动控制了盆地的演化、油气的生成、构造圈闭的形成、原生油气藏的破坏及浅部次生油气藏的形成;
Tectonic movement controls the evolvement of the basin , generation of petroleum , formation of traps , destroy of primary oil gas pool and the formation of secondary oil gas pool in the shallow .
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塔西南前陆盆地是古生代克拉通盆地与中、新生代前陆盆地的复合,在剖面上呈向北抬升的箕状结构。华北古生代克拉通盆地南部原生油气藏勘探前景
The southwest foreland basins in Tarim Basin is composed of Paleozoic basins and the Meso Cenozoic foreland basins . Prospects of exploring Palaeozoic primary oil and gas pools in southern area of North China cratonic basin
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认为南方现存的古生界&中生界原生油气藏很少,绝大部分原生油气藏均已破坏成为古油藏,四川盆地现存的大多数油气藏是典型的次生油气藏。
There are very few Paleozoic-Mesozoic primary oil-gas reservoirs in southern China , and most primary reservoirs had already been destroyed into fossil pools . Most existent reservoirs in the Sichuan basin are typical secondary gas fields .
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根据构造演化史和成藏史研究,柴达木盆地西部上新世&第四纪是原生油气藏的破坏和次生油气藏的形成时期。
According to the history of tectonic evolution and reservoir formation in the western Qaidam basin , the period from late Pliocene to Quaternary is responsible for the destruction of primary reservoir and the formation of secondary reservoir .
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平面上,油气藏基本位于流体能量相对较低的分区内,高流体能量区也有油气藏分布,但大多为封闭保存条件好的岩性及构造-岩性等原生油气藏。
There are also oil and gas pools occurring in the sub-areas with high fluid energy , but most of them are primary oil and gas reservoirs with good sealing and preservation conditions , such as lithologic and structural-lithologic reservoirs .
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研究表明:本区辉绿岩的侵入时期晚,在加速E1f2、E1f4段生油岩有机质向烃类转化的同时,也破坏了早期原生油气藏,影响了次生油气藏的形成;
The results show that the diabase penetrating into E 1f 2 and E 1f 4 accelerates the inversion of organic matter to hydrocarbons , but it destroys original oil and gas reservoir , and influences the formation of secondary oil and gas reservoir .
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上古生界烃源岩二次生烃主要发生于晚三叠世末期和早白垩世末期,油气保存好,原生油气藏勘探前景广阔。
Secondary hydrocarbon generation in Upper Paleozoic source rocks had occurred mainly at the end of Late Triassic and the end of Early Cretaceous , and hydrocarbons were well preserved , thus there would be large potentials for exploration of primary oil and gas reservoirs .
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上、下古生界烃源岩成烃条件是其油气形成的基础,古高今低的挤压逆冲背科带和反转构造是寻找古生界原生油气藏的有利地区。
Hydrocarbon forming conditions of hydrocarbon source rock of upper and lower Palaeozoic group are bases of forming oil and gas . The compressional thrust anticline belt which was high in ancient time and low today , and reversed structure are favourable areas for seeking primary reservoirs of Palaeozoic group .
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利用地震资料质量和速度研究围绕有利生烃向斜周缘进行原生和次生油气藏勘探取得了较好的勘探效果。
Good exploration effects have been obtained through the researches using the quality and the speed of seismic data to develop primary and secondary hydrocarbon reservoir exploration around the beneficial generative hydrocarbon syncline .