胶结

The existence of dissociative iron oxide cause cementation between grains and it is the important reason of "artificial mealiness" and "artificial grittneess".

红土中游离氧化铁的存在使土颗粒之间产生胶结，是土具有&假粉性&和&假砂性&特征的主要原因。

Depth of the research section is from 2100m to 4200m, which change is larger and types of diagenetic including compaction pressure,solution, cementation, metasomasis, re-crystallization and the transformation of clay minerals.

研究区段埋深2100m—4200m，变化较大，成岩作用类型有压实压溶、胶结、交代、重结晶和粘土矿物的转化。

Base on core observation and grain size analysis, and under associated consideration of logging trace characteristics, Chang8 reservoir in study area is classified into three sedimentatal microfacies, subsea river, mouth bar and river flank.3.The mian diagenesis in study area are: mechanical compaction, cementation, metasomasis and denudation in late diagenetic phase.4. In allocation of reservoir macroscopic heterogeneity, more heterogeneticer reservoir, class 1 and class 2, mainly locate in the center of subsea river or crook and divaricate of the river; class 3 and class 4 mainly locate in river flank, and the physical property of these locality are better.5. Diagenesis of reservoir have influence on the pore structure which influences the reservoir microscopic heterogeneity. The better the pore structure is, the slighter the reservoir microscopic heterogeneity is; on the contrary, the reservoir microscopic heterogeneity is serious.

本次研究所取得的主要成果及熟悉有：1、将合水地区长8储层细分为6个小层：长8_1~1、长8_1~2、长8_1~3、长8_2~1、长8_2~2和长8_2~3.2、依据岩心观察和粒度分析，并结合测井曲线特征，研究区长8储层分为水下分流河道、河口坝和河道侧翼四种沉积微相。3、研究区主要经历的成岩作用有：机械压实和压溶作用、胶结作用、交代作用、晚成岩期溶解作用。4、从宏观非均质性平面展布特征来看研究区宏观非均质较强的1类和2类区主要分布于水下分流河道中间或河道拐弯和分又处。3类和4类往则主要分布于水下分流河道侧翼，这些地方储层均质性相对较好。5、储层成岩作用影响储层的孔隙结构，储层的孔隙结构又对储层的微观非均质性有不同程度的影响，孔隙结构越好，则储层的均质性越好，储层的孔隙结构差，则非均质性强。

When the fault throw is relatively small, the shale gouge ratio and clay smear potential are relatively large and shale smear is strong. In addition, the coal layers on both sides of the fault are mainly juxtaposed against shale. Therefore, shale smear and juxtaposition play a key role in the sealing. In contrast, when the fault throw is relatively large and shale smear is relatively weak, juxtaposition is unfavorable for sealing. However, the mylonite resulted from strong cataclasis can act as a seal of the coals. The cementation resulted from underground water activity is of great significance to the sealing ability of the fault. Mylonitic coal layers resulted from faulting occur on both sides of the fault. They are unique reservoirs with low permeability and high displacement pressure and their scales depend, to some extent, on the fault throw, fault properties, the hanging wall and footwall.

结果表明：①当断层落差较小时，断层泥比率和泥岩涂抹潜势值较大，泥岩涂抹效应强烈，且与断层两侧煤层对接的岩石主要为泥岩类，此时起封闭作用的主要为泥岩涂抹作用和断层两侧岩性配置关系；②当断层落差较大，泥岩涂抹作用较弱时，对接越不利于封闭形成，但碎裂作用强烈，沿断层两侧形成的糜棱岩对煤层起到了封闭作用；③地下水活动导致的胶结作用对整个断层的封闭具有重要的意义；④断裂作用形成的糜棱煤沿断层两侧分布，此糜棱煤带是一种低渗透、高排替压力的特殊储层，其规模与断层的落差、性质、上下盘都有一定关系。

Analyses for binder phase distribution and percolative nature as well as effect of progressive substitution HAC byα-alumina on phase composition and distribution in alumina-substituted MDF composites and wet properties suggest that the contribution of the cross-linked PVA located in the interphase region to transport of moisture is limited.

通过加热MDF复合材料至不同温度点分析了其胶结相的分布和渗透特性以及掺加α—A1〓O〓对其相组成、分布和湿性能的影响，结果表明，界面相中交联PVA对湿度传递的贡献是非常有限的，而本体聚合物区域的PVA提供了湿度传递的主要途径，未反应水泥颗粒作为水的接受体，对MDF复合材料的湿抗折性能与吸湿也产生了严重的有害影响。

On one hand we take the waste gypsum, pyritic slag as the main resources. Proportion is such as follows: scree 15%, pyretic slag 30%, waste gypsum 45%, cement 10%, then take the semi-dried method, high pressure moulding to produce the waste gypsum and pyrite cinder brick which resist pressure is over 100~# brick resist pressure.

实验一方面以工业废石膏和硫酸烧渣为主要原料，按石屑15%，硫酸烧渣30%，废石膏45%，胶结料10%；半干法高压成型，再自然养护，制成废石膏硫酸烧渣砖，强度达到100~#以上。

These pieces of evidence indicate petroleum was likely oxidized by sulfate reducing bacteria and thus supplied a source of some of the carbon in the carbonate cement. Significatively, more and more research has shown that SRB could reduce U to U utilizing biological metabolism.

这些证据表明，硫酸盐还原菌可能厌氧地降解烃类，其产物CO2为碳酸盐胶结物提供了部分碳源，且已有的研究显示，SRB利用新陈代谢作用可以还原U。

Curves of grain size distribution for debris flow conglomerates have multiple modes and hence wave sinuously.

颗粒流沉积与之类似，但岩石中基质甚少，砾石之间只充填少量沉积期后渗入岩石中的铁质和粘土矿物等胶结物。

Grainstones are the main part of the section, among which the oolites, intraclast limestones and most bioclast limestones are cemented by sparry calcite.

颗粒灰岩在剖面中占绝大多数，其中，鮞粒灰岩、內碎屑灰岩和多数生物碎屑灰岩均为亮晶方解石胶结。

Porosity is mainly composed of intergranular pores. Flow test and assistant test of 65 core samples from Upper S3 submember in 5 wells in the main part of this oil field show that the reservoir beds are loosely cemented and argillaceous minerals are mainly unstable illite-montmorillonite mixtures.

对油田主力区5口取心井65块沙三上亚段岩心进行流动实验和辅助实验，结果是储集层胶结疏松，黏土矿物主要是不稳定的伊／蒙混层矿物，敏感性损害主要是中—强水敏性，其次是中—弱酸敏性和碱敏性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。