1000 resultados para 6-59A


Relevância:

20.00% 20.00%

Publicador:

Resumo:

The foundation of reservoir model and residual oil prediction have been the core of reservoir detailed description for improved oil production and enhanced oil recovery. The traditional way of sandstone correlation based on the geometrical similarity of well-logs which emphasizes "based on the cycle and correlating from larger to smaller" has shown its theoretical limits when explaining the correlating and the scale, geometry, continuity, connectivity of sandstones and the law of the reservoir property. It has been an urgent and difficult subject to find new theory and methods to solve the reservoir correlation and property prediction. It's a new way to correlate strata and found framework of reservoir through the process-response analysis in the base-level cycles. And it is also possible to analyze the reservoir property in reservoir framework. Taking the reservoir of zonation 6-10 in S3~2 of Pucheng Oil Field in Henan Province as an example, we founded the detailed reservoir stratigraphic framework through base-level correlation. In the strata frame, sediment distribution and its development are discussed based on sediment volume partitioning and facies differentiation analysis. Reservoir heterogeneities and its relation to base-level are also discussed. The analysis of primary oil distribution shows the base-level controlled oil distribution in reservoir. In this paper, subjects as following are discussed in detail. Based on the analysis of sedimentary structure and sedimentary energy, the facies model was founded. Founding stratigraphy framework through base level analysis In the studying zone, one long term cycle, 6 middle term cycles and 27 short term cycles was identified and correlated. 3 Predicting the property of reservoir for improving oil development The base level controlled the property of sandbody. The short and very short term cycle controlled the pattern of heterogeneities in sandbody, and the middle and long term cycle controlled the area and inter-layer heterogeneities. On the lower location of the middle and long term base level, the sandbody is well developed, with a wide area and large thickness, while on the high location of base level, there is an opposite reservoir character. 4 The studying of reservoir development response and oil distribution making a solid base for development adjustment Primary oil distribution is controlled by base level location. It tells that the sandbody on the high base level location was poor developed for its difficulty to develop. While on the low location of the base level, the sandbody is well developed for its relative easy to develop and dominant role in the development, but high residual oil for its high original oil content.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

测定6种喀斯特峡谷石漠化区常见植物的δ13C值并对相关植物叶片的解剖结构进行分析。结果表明:植物叶片解剖结构的各个特征在种间变化不同步,同化组织越厚,气孔密度越高,下角质层越厚,δ13C值越正。不同植物种对植物δ13C值影响的结构主导因子不同:构树为下角质层厚度,清香木为栅栏与海绵组织厚度比,石岩枫和野桐为栅栏组织厚度,八角枫和红背山麻杆没表现出主导因子。石漠化发生后,叶片结构表现出抗旱性增强、光合速率增加的趋势,同时叶片也表现出随石漠化强度增大δ13C增大的趋势,显示植物的WUE增加.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

红原泥炭氧同位素指示的近6000年温度变化,其总体趋势与金川温度变化,敦德温度变化一致,与格陵兰冰芯记录的温度变化趋势也相似。具体的气候事件具有明显的全球一致性。最近6000年温度变化存在两个明显的“转折点”,既4000a BP左右气温由低温变为高温,1500a BP左右气温由高温变为低温。功率谱分析发现红原泥炭氧同位素序列包含1220~1087a、752a、444a、325a、213a、127-123a、88a、79a这样的周期。分析表明红原地区气候驱动因子可能主要是太阳活动,同时海洋活动信号也通过海气

Relevância:

20.00% 20.00%

Publicador:

Resumo:

情绪表达规则是指一个人应当在恰当的情境中表达恰当的情绪。对情绪表达规则的认知发展是个体社会能力发展的一个重要方面,因此这一主题引起了国内外众多研究者的重视。但目前对童年早期儿童的研究中,大多数只考查了儿童对情绪的外显表达与内隐真实体验的区分,没有同时考查儿童对需要使用情绪表达规则的情境的认知,不能全面真实地揭示儿童对情绪表达规则的认知发展。在本研究中,以个别访谈法考查了4-6岁儿童同一个体在这两个指标上对情绪表达规则认知的发展,以及发展中的个别差异和个体内部差异,并进一步了解情境因素以及心理理论能力、执行抑制能力的发展对它们的影响。主要结果如下: (1)4-6岁儿童对情绪表达规则的认知能力随年龄增长而提高:4岁尚处于发展的萌芽水平,5岁和6岁都处于发展的过渡水平。对于同一年龄的儿童,对情绪表达规则的认知发展存在较大的个体之间的差异。 (2)4-6岁儿童对情绪表达规则的认知也存在较大的个体内部差异:对表情伪装的认知滞后于对需要使用情绪表达规则的情境的认知,对言语伪装的认知优于对表情伪装的认知;在对情绪表达规则的使用中,自我定向的占多数,其次是他人定向,规则定向所占的比例最少。随年龄的增长,自我定向的比例减少,他人定向的比例增多。 (3)情境变量影响4-6岁儿童对情绪表达规则的认知:与同伴交往情境中对需要使用情绪表达规则的情境的认知、对言语伪装的认知优于与长辈交往情境中的有关认知;对需要掩藏消极情绪情境中对表情伪装的认知要优于对需要掩藏积极情绪情境中表情伪装的认知。 (4)4-6岁儿童心理理论能力的发展和执行抑制能力的发展与其对情绪表达规则的认知发展有关。 (5)有关情绪表达规则的提示能够促进儿童对情绪隐私的认知,促进的效果随年龄的增长而提高,6岁的效果最好。