成岩作用

This makes the study of the area more difficulty.The sand reservoir clastic fragment, the characteristics of infillings, digenesis and the structure and evolution of pores have been studied by means of many techniques including of microscope, EMS, high pressure mercury intrusion and thin section.

应用显微镜下观察、电镜扫描、高压压汞及铸体等分析技术，对砂岩储层的碎屑组分、填隙物特征、成岩作用以及孔隙结构与孔隙演化进行了研究，尝试运用数理统计方法研究了储层非均质性，分析评价了储层物性特别是渗透率的非均质性。

Under the guidance of the theories of sedimentation, paleontology, stratigraphy, reservoir geology and digenesis, synthetically applying the methods of the conjunction of spot-line-surface, macro-microscopic and field-indoor, there is a comprehensive study for the upper Permian series in stratum, rock, sedimentary facies and diagenesis, especial for the type and characteristics of sedimentary facies, in the paper.

本文主要是以沉积学、古生物学、地层学、储层地质学等相关理论为指导，运用点线面、野外与室内、宏观与微观相结合的方法，并借助普通显微镜、阴极发光显微镜等手段对川西地区北部上二叠统的地层、岩石、沉积相以及成岩作用进行了研究，尤其是对沉积相的类型及特征作了详细的划分与阐述。

The result indicates that all the reservoirs have the characteristics that the mineral maturity is low but the structure maturity is high; the porosity types are primal grain porosity and dissolution porosity est., The physical property is middle pore and low permeability , middle pore and very low permeability; Sedimentary environment, petrology composition and radius, composition and amount, and the digenesis are all the factors that influence the reservoirs.

结果表明：延长组储层具有成分成熟度低而结构成熟度高的特点；孔隙类型主要为粒间孔，溶蚀孔，晶间孔和微裂隙等；属于中孔，低渗型和中孔，特低渗型储层。影响储层物性的主要因素是沉积环境和沉积相，碎屑颗粒成分及粒度，填隙物成分及含量，成岩作用等。该研究对制定油田开发方案和提高油气采收率具有重要意义。

The intraplatform point beach experienced good dolomitization and has good reservoir properties, with little development and thin thickness. Beach facies is only the basic condition for reservoir development.

由此可见，滩相沉积体仅是储层发育的基本条件，滩体最终能否形成有效的储集体，还要取决于后期成岩作用的改造。

The pore structure character of reservoir of Paleogene in Melut Basin of Sudan was analyzed by studying the effect of lithology, diagenesis, pore types and clay minerals on pore structure. This reveals micro-features of the reservoir and its effects on development result. Reservoir lithology is mainly lithic quartz arenite and feldspathic quartz arenite, which has low textural maturity.

从储层的岩性、成岩作用、孔隙类型及影响孔隙结构的因素等方面，对苏丹穆格莱德盆地古近系储层的孔隙结构特征进行了分析，揭示了该储层的微观特征及其对开发的影响。

The stratigraphic trend develops during lithification and is unrelated to any change in the global oceanic δ13C.

地层在成岩作用的同时发生的变化应该与全球海洋δ13C 的变化没有多大的联系。

1B. In some successions, the isotopic signal is set during lithification in isotopically evolving pore fluids, as discussed above.

某些地层中同时保存了孔隙流体中的同位素变化，这些变化多发生在成岩作用过程。

Apparent correlations of low δ13C between widely separated sections may relate simply to eustatic sea-level drops where phreatic lenses intrude simultaneously during lithification.

较低的碳同位素比值出现在了很长期的并且相对独立的沉积其内，表示了这个时期曾经发生过普遍的海水沉降，同时不断出现了潜水区的透镜体的入侵，从而定义为成岩作用。

Under the guide of the theories of advanced carbonate diagenesis and reservoir geology,and associating with the newest progress relevant domestic and abroad,systermatically researched the reservoir characteristics, property,pore texture,division and evaluation of upper Ordovician reef bank inTazhong62 well area both from macrography and micrography.

本文以当代先进的碳酸盐成岩作用、储层地质学理论和方法为指导，结合国内外相关的新近展，对塔中62井区上奥陶统陆棚边缘的礁滩体从宏观、微观的储层特征、性能、孔隙结构、分类、评价等方面进行了比较深入和系统的研究。

Thousands of published analyses of Phanerozoic carbonates clearly avoid the forbidden zone Fig.

在这个区域上，我们没有过多的数据，图表上面显示在成岩作用区域的右边。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。